juice news Geisenheim Information No. 3 Cellulose instead of kieselguhr Importance of the mycotoxin patulin for the fruit juice industry New, efficient fining agents for equipment protection NEW 6 senses for your success!
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C M Y CM MY CY CMY K
Approved technical aids - secure processing -perfect fruit juice delight!
ERBSLÖH Geisenheim AG • D-65366 Geisenheim • Tel.: +49 6722 708-0 • www.erbsloeh.com
juicenews
Geisenheim Information No. 3
Cellulose insteadof kieselguhr
Importance of themycotoxin patulin forthe fruit juice industry
New, efficient finingagents for equipmentprotection NEW
Fructozym® P
Fructozym® Color
Fructozym® BE
Fructozym® FLUX
Fructozym® P6-XL
Fructamyl® HT
Fructamyl® FCT
Fructamyl® FHT
Fructozym® UF
Fructozym® M
Fructozym® MA-X-Press
Fructozym® MA
Fructozym® MA-LG
Fructozym® S-PRESS
Fructozym® MB
Pectin degradation in fruit juice
Maximum colour extraction and preservation in coloured juices
Pectin degradation in berry juices rich in colloids
Reduction of cell wall colloids in case of challenging filtration- and stability requirements
Pectin degradation in juices and all general requirements to reduce viscosity
Complete starch degradation with amyloglucosidase
Compl. starch degradation and prevention of filamentous haze in cold clarification up to 30°C
Compl. starch degradation and prevention of filamentous haze during hot clarific. at 25-60°C
Improvement of flux rate, clarification and general juice stability
Production of cloud-stable juices or purees from fruits and vegetables
Strong increase of yield and capacity in case of fresh and stored pome fruits
Accurate enzymatic treatment of complex fruit mashes
Pomace processing resulting in maximum yield and lowest release of undesired substances
Increase of yield and capacity in case of fresh pome fruits, stone fruits and berries
Production of colour intensive and colour stable juices with intensive mouthfeel
Pectinases:
Amylases:
Ultrafiltration:
Maceration:
Mash enzymes:
Bentonites:
Gelatine:
Silica sols:
Active carbons:
NaCalit® PORE-TEC
Aktivit
Ca-Granulat
Blancobent UF
ErbiGel®
Klar-Sol Super
Klar-Sol Speedfloc
Klar-Sol 30
Ercarbon FA/Akticol FA
Akticol FA-UF
Ercarbon PT
Ercarbon SH
Granucol® Fa/Bi/Ge
Efficient stabilisation of proteins with bentonite of highest purity, colour preserving
Good protein stabilisation with comparably small formation of fining deposits
Clarification and protein stabilisation for low pH beverages
Equipment protecting, highly efficient beverage stabilisation, colour preserving
Clarification and phenol stabilisation with specially suited, medium Bloom gelatine
Secure clarification of all fruit juices, also for problematic cases
Clarification of fruit juice, particularly efficient in hot clarification processes
Universal, economic use of alkaline silica sol
Colour reduction in case of off-colours, highest purity carbons
Colour and phenol stabilisation with subsequent carbon removal by means of CFF systems
Reduction of patulin
Adsorption of off-taste, disturbing substances and HMF
Granulated activated carbons for various purposes
Viniferm C2
Oenoferm® Freddo
Oenoferm® Bouquet
Fast, reliable fermentation without formation of undesired by-products
Fast, reliable fermentation, also at low temperatures below 12°C
Fermentation of substrates high in sugar / low in nutrients
Boerovin
Kadifit
Vinosorb®neu
Ercobin
Addition of biologically gained L (+) lactic acid
Potassium disulfite for sulphuring
Potassium sorbate to prevent fermentation
Protection against oxidation by vitamin C
Enzymes for the production of fruit juices and fruit wines
Clarification and stabilisation of fruit juices and fruit wines
Fermentation of fruit wines
Acid adaptation and stabilisation of fruit wines
Sensory improvementGerbinol® Super
Kal-Casin Leicht löslich
Correction of phenolic off-odors and off-tastes
Elimination of undesired, strong phenolic components and oxidation by-products
6 senses for your success!
6 senses for your success!
C M Y CM MY CY CMY K
Cellulose instead of kieselguhrFiltrations proceed in a successful way Georg Pölloth
Precoat filtration is a common and approved technique in the fruit juice industry.Particularly its striking efficiency, reliability and the possibility of adaption by choosingthe suitable filter aids for the required filtration tasks are very much appreciated by theexperts.
The cellulose product CelluFluxx is areal alternative to kieselguhr. Thespecially prepared cellulose fibres makepossible to precoat an ideal filter cakewith good hold-back properties.Different fibre lengths assure adequate,adjusted employment in continuousdosage. Cellulose is a purely vegetablesubstance, thus offering importantadvantages in application and disposal.
Product: apple juice semi-concentrate of approx. 25 Brix, at approx. 55°CFilter plant: horizontal screen filter – Schenk ZHF
One trial filtration each with kieselguhr and cellulose with identical product from the same batch.
Kieselguhr is the dominating filter aid used in traditional precoat filtration stilltoday. It is a mineral, (partly) crystalline material consisting predominantly ofsiliceous shells of fossil diatoms. Yet, since the IARC – an expert committee ofthe WHO – has classified diatomaceous earth as carcinogenic for humans, thismaterial has come under considerable pressure.
The following three points, above all, demonstrate this fact:
� Avoidance of industrial medicine problems by mandatory safety measures and costly handling instructions, for instance, closed containers, exhausting devices, etc.
� Critical questioning, especially in audits, of the application of carcinogenic substances in food producing companies.
� With regard to disposal, more stringent statutory regulations are to be expected due to the WHO classification.
Traditional precoat agents
Kieselguhr Kieselguhr alternative
Application example
Test data
Filtration results
Advantages for the user
� Reduced consumption = reduced disposal problems
� Sediments are biodegradable
� Higher productivity
��the increased filter aid application when using kieselguhr leads to an early exhaustion of filter sediment absorbing capacity. The filter must be emptied, cleaned, newly precoated and started up, which, asa rule, requires 2 hours.
��with CelluFluxx, in many cases, it is possible to filtrate a twofold amount before filter cleaning becomes necessary.
� Improved job safety, no risk to health
� Less rinsing water, backwash water requirements
� Reduced labour costs, set-up costs
Summary
Filter aid application
Filtrate quality
Sensory evaluation
Special applications
CelluFluxx is well suited for thefiltration of
� elderberry juice
� black currant juice
� cherry juice
Improved colour preservationwhen processing coloured juicesdue to the small amounts of filteraids applied.
Moreover, CelluFluxx P50 is theappropriate product for use onrotary vacuum drum filters.
The produced apple juice concentrates were diluted until ready-to-drink and tasted in triangular taste test:Result: no deviation was ascertainable.
No differences occur between CelluFluxx and kieselguhr filtered product, neither in respect of the important parameters,e.g., Brix, colour, cloudiness, nor after heat/chill test. When employing CelluFluxx, a passing over of mineral salts (Na, Ca,Fe salts) is expected to be generally smaller.
With CelluFluxx cellulose fibres as precoating material, considerably reduced application amounts can be realized incomparison with kieselguhr, thus considerably longer filter operating cycles result. The choice of different degrees offineness allows to apply the product type best matched for the respectively required filtration task.
Kieselguhr
throughput: 140,000 Lafter that: filter exhausted (sediment absorbing capacity exhausted)
consumption kieselguhr: 300 kg
specific consumption: 2.14 g / L
CelluFluxx
throughput: 280,000 Lafter that: filtration not exhausted but stopped at pressure 0.1 bar
consumption: CelluFluxx: 116 kg
specific consumption: 0.41 g / L
C M Y CM MY CY CMY K
Cellulose instead of kieselguhrFiltrations proceed in a successful way Georg Pölloth
Precoat filtration is a common and approved technique in the fruit juice industry.Particularly its striking efficiency, reliability and the possibility of adaption by choosingthe suitable filter aids for the required filtration tasks are very much appreciated by theexperts.
The cellulose product CelluFluxx is areal alternative to kieselguhr. Thespecially prepared cellulose fibres makepossible to precoat an ideal filter cakewith good hold-back properties.Different fibre lengths assure adequate,adjusted employment in continuousdosage. Cellulose is a purely vegetablesubstance, thus offering importantadvantages in application and disposal.
Product: apple juice semi-concentrate of approx. 25 Brix, at approx. 55°CFilter plant: horizontal screen filter – Schenk ZHF
One trial filtration each with kieselguhr and cellulose with identical product from the same batch.
Kieselguhr is the dominating filter aid used in traditional precoat filtration stilltoday. It is a mineral, (partly) crystalline material consisting predominantly ofsiliceous shells of fossil diatoms. Yet, since the IARC – an expert committee ofthe WHO – has classified diatomaceous earth as carcinogenic for humans, thismaterial has come under considerable pressure.
The following three points, above all, demonstrate this fact:
� Avoidance of industrial medicine problems by mandatory safety measures and costly handling instructions, for instance, closed containers, exhausting devices, etc.
� Critical questioning, especially in audits, of the application of carcinogenic substances in food producing companies.
� With regard to disposal, more stringent statutory regulations are to be expected due to the WHO classification.
Traditional precoat agents
Kieselguhr Kieselguhr alternative
Application example
Test data
Filtration results
Advantages for the user
� Reduced consumption = reduced disposal problems
� Sediments are biodegradable
� Higher productivity
��the increased filter aid application when using kieselguhr leads to an early exhaustion of filter sediment absorbing capacity. The filter must be emptied, cleaned, newly precoated and started up, which, asa rule, requires 2 hours.
��with CelluFluxx, in many cases, it is possible to filtrate a twofold amount before filter cleaning becomes necessary.
� Improved job safety, no risk to health
� Less rinsing water, backwash water requirements
� Reduced labour costs, set-up costs
Summary
Filter aid application
Filtrate quality
Sensory evaluation
Special applications
CelluFluxx is well suited for thefiltration of
� elderberry juice
� black currant juice
� cherry juice
Improved colour preservationwhen processing coloured juicesdue to the small amounts of filteraids applied.
Moreover, CelluFluxx P50 is theappropriate product for use onrotary vacuum drum filters.
The produced apple juice concentrates were diluted until ready-to-drink and tasted in triangular taste test:Result: no deviation was ascertainable.
No differences occur between CelluFluxx and kieselguhr filtered product, neither in respect of the important parameters,e.g., Brix, colour, cloudiness, nor after heat/chill test. When employing CelluFluxx, a passing over of mineral salts (Na, Ca,Fe salts) is expected to be generally smaller.
With CelluFluxx cellulose fibres as precoating material, considerably reduced application amounts can be realized incomparison with kieselguhr, thus considerably longer filter operating cycles result. The choice of different degrees offineness allows to apply the product type best matched for the respectively required filtration task.
Kieselguhr
throughput: 140,000 Lafter that: filter exhausted (sediment absorbing capacity exhausted)
consumption kieselguhr: 300 kg
specific consumption: 2.14 g / L
CelluFluxx
throughput: 280,000 Lafter that: filtration not exhausted but stopped at pressure 0.1 bar
consumption: CelluFluxx: 116 kg
specific consumption: 0.41 g / L
C M Y CM MY CY CMY K
Selection of CelluFluxx® filter celluloses
Economic advantages and advantages in respect of practicalapplication technique
Application of CelluFluxx® filter celluloses
� The higher price for cellulose is for the most part compensated by smaller quantities needed for application.
� The reduced filter aid amounts applied result in: less product losses, smaller disposal amounts and lower disposal costsand improved logistics as to product storage and disposition.
� By the prolonged filter operating cycles, the set-up costs (to empty, clean, precoat, start up) are considerably lowered.
� CelluFluxx filter aids are not abrasive, contrary to mineral filter aids, consequently prolonged operating life of expensive filter plants, dosing pumps and other valuable equipment.
� CelluFluxx filter aids are biodegradable, contrary to mineral filter aids. This opens up manifold disposal possibilities:composting for soil cultivation, soil improvement, discharge into sewage system (in accordance with regulations oflocal authorities), biogas winning.
The so far achieved results with CelluFluxx filter aids show that the expected costs of subsequent filtration steps (sheet ormembrane filtration) are comparable to those of kieselguhr filtration.
CelluFluxx® F25: short, strongly fibrillated cellulose fibre, for the second precoat as well as for continuous dosage.
CelluFluxx® F45: medium, strongly fibrillated cellulose fibre, for the second precoat as well as for continuous dosage.
CelluFluxx® F75: medium long, strongly fibrillated cellulose fibre, for the second precoat as well as for continuous dosage.
CelluFluxx® P30: smooth, little fibrillated cellulose fibre, for the first precoat.
CelluFluxx® P50: long, voluminous cellulose fibre. For the processing of sediments from must settling, deacidification, wine
lees, for use on rotary vacuum drum filters.
permeability
sharpness of clarification/separation effect
Treatment of patulin
The most important measure to reduce patulin is the consistent control of rawmaterials. In addition, rot-infested fruit parts could be separated by means ofspray nozzles. Yet industrial processing, even when using best possible technol-ogies, cannot always guarantee the targeted minimal contents.
Often the reason for this is rot inside the fruit and the not always controllablequality-preserving measures of the suppliers for raw materials and semi-finishedproducts. Therefore corrective treatment may become necessary in single cases.Patulin is extremely heat-stable in acidic medium and is not destroyed duringpasteurisation or concentration.
For the reduction of patulin, a specially activated carbon type – Ercarbon PT– is used. In its production, vegetable raw materials are adjusted to patulinadsorption by a special activation process. Advantages of this special processare for instance, no colour changes during juice treatment. Moreover, Ercarbon PTcomplies of course with the highest purity requirements in the way all Erbslöhcarbons do. Therefore, no impurities in the form of heavy metals, etc. are to beexpected.
Origin
Patulin is a mycotoxin derived fromthe secondary metabolism of manymoulds. In apples it can be foundat the spots infested with brownrot. Equally known to form patulinare fungi of the species bysso-chlamys, for instance, grey rot oncoloured fruits. In the first place itis a problem of raw material whichis then transferred to the fruit juiceindustry. The decisive formation ofpatulin and other mycotoxins in thefruit juice or the concentrate plantsis very unlikely. In various studies,patulin is described as carcinogenicand mutagenic.
This is why for fruit juices in manycountries a patulin content of 50ppb (μg/L) applies. Juices with highercontents are no longer marketable.Of course, it would be desirable toreach a content of < 10 ppb asstipulated for baby food by goodtrade custom. Occasionally, clearrequirements exist to offer productswith a patulin content below thecurrent detection limit.
Importance of the mycotoxin patulinfor the fruit juice industry Peter Dietrich
Summary
Patulin is a mycotoxin opposed to the health aspect of fruit juice. It is possible to minimise its occurence by implementingand keeping to quality standards in the industry, but it is hardly possible to avoid it completely. Approved means to controlthe patulin content particularly in fruit juices is the treatment with Ercarbon PT, the specially matched, highly pure, activatedcarbon. Questions arising with regard to treatment must be considered individually and are answered in an optimised mannerby the Erbslöh Service.
Patulin reduction with Ercarbon PT
Savoury and sound – these are important arguments for consumers to buy and drink fruit juices. Fruit juices transport the health-promoting ingredients of the fruits directly to the consumer in a way no other beverage does. Thus the fruit juice industry makesenormous efforts on quality assurance to take this fact into account and to meet consumer demands. In this connection, patulinis frequently mentioned as critical factor for the production of high-quality juices and requires a closer look.
Principally, it is not possible to reconstitute a juice which is not marketable due toits patulin content, not even if treated thoroughly. Nevertheless, patulin reductionmakes sense in marketable standard juices and in nutrition physiological respect.The exact dosage of activated carbon required depends on very individual factors,e.g., initial concentration, temperature and duration of treatment.
Filter cellulose
grain size
CelluFluxx® F25
fine
CelluFluxx® F45
medium
CelluFluxx® F75
medium coarse
CelluFluxx® P30
coarse
CelluFluxx® P50
extra coarse
100 20 30 40 50 60
patulin% reduction
0%blank sample
-10%chemically activated carbon for colour treatment
-37%physically activated special carbon
-65%Ercarbon PT activated carbon treatment ofapple juice with 75 g/100 L
C M Y CM MY CY CMY K
Selection of CelluFluxx® filter celluloses
Economic advantages and advantages in respect of practicalapplication technique
Application of CelluFluxx® filter celluloses
� The higher price for cellulose is for the most part compensated by smaller quantities needed for application.
� The reduced filter aid amounts applied result in: less product losses, smaller disposal amounts and lower disposal costsand improved logistics as to product storage and disposition.
� By the prolonged filter operating cycles, the set-up costs (to empty, clean, precoat, start up) are considerably lowered.
� CelluFluxx filter aids are not abrasive, contrary to mineral filter aids, consequently prolonged operating life of expensive filter plants, dosing pumps and other valuable equipment.
� CelluFluxx filter aids are biodegradable, contrary to mineral filter aids. This opens up manifold disposal possibilities:composting for soil cultivation, soil improvement, discharge into sewage system (in accordance with regulations oflocal authorities), biogas winning.
The so far achieved results with CelluFluxx filter aids show that the expected costs of subsequent filtration steps (sheet ormembrane filtration) are comparable to those of kieselguhr filtration.
CelluFluxx® F25: short, strongly fibrillated cellulose fibre, for the second precoat as well as for continuous dosage.
CelluFluxx® F45: medium, strongly fibrillated cellulose fibre, for the second precoat as well as for continuous dosage.
CelluFluxx® F75: medium long, strongly fibrillated cellulose fibre, for the second precoat as well as for continuous dosage.
CelluFluxx® P30: smooth, little fibrillated cellulose fibre, for the first precoat.
CelluFluxx® P50: long, voluminous cellulose fibre. For the processing of sediments from must settling, deacidification, wine
lees, for use on rotary vacuum drum filters.
permeability
sharpness of clarification/separation effect
Treatment of patulin
The most important measure to reduce patulin is the consistent control of rawmaterials. In addition, rot-infested fruit parts could be separated by means ofspray nozzles. Yet industrial processing, even when using best possible technol-ogies, cannot always guarantee the targeted minimal contents.
Often the reason for this is rot inside the fruit and the not always controllablequality-preserving measures of the suppliers for raw materials and semi-finishedproducts. Therefore corrective treatment may become necessary in single cases.Patulin is extremely heat-stable in acidic medium and is not destroyed duringpasteurisation or concentration.
For the reduction of patulin, a specially activated carbon type – Ercarbon PT– is used. In its production, vegetable raw materials are adjusted to patulinadsorption by a special activation process. Advantages of this special processare for instance, no colour changes during juice treatment. Moreover, Ercarbon PTcomplies of course with the highest purity requirements in the way all Erbslöhcarbons do. Therefore, no impurities in the form of heavy metals, etc. are to beexpected.
Origin
Patulin is a mycotoxin derived fromthe secondary metabolism of manymoulds. In apples it can be foundat the spots infested with brownrot. Equally known to form patulinare fungi of the species bysso-chlamys, for instance, grey rot oncoloured fruits. In the first place itis a problem of raw material whichis then transferred to the fruit juiceindustry. The decisive formation ofpatulin and other mycotoxins in thefruit juice or the concentrate plantsis very unlikely. In various studies,patulin is described as carcinogenicand mutagenic.
This is why for fruit juices in manycountries a patulin content of 50ppb (μg/L) applies. Juices with highercontents are no longer marketable.Of course, it would be desirable toreach a content of < 10 ppb asstipulated for baby food by goodtrade custom. Occasionally, clearrequirements exist to offer productswith a patulin content below thecurrent detection limit.
Importance of the mycotoxin patulinfor the fruit juice industry Peter Dietrich
Summary
Patulin is a mycotoxin opposed to the health aspect of fruit juice. It is possible to minimise its occurence by implementingand keeping to quality standards in the industry, but it is hardly possible to avoid it completely. Approved means to controlthe patulin content particularly in fruit juices is the treatment with Ercarbon PT, the specially matched, highly pure, activatedcarbon. Questions arising with regard to treatment must be considered individually and are answered in an optimised mannerby the Erbslöh Service.
Patulin reduction with Ercarbon PT
Savoury and sound – these are important arguments for consumers to buy and drink fruit juices. Fruit juices transport the health-promoting ingredients of the fruits directly to the consumer in a way no other beverage does. Thus the fruit juice industry makesenormous efforts on quality assurance to take this fact into account and to meet consumer demands. In this connection, patulinis frequently mentioned as critical factor for the production of high-quality juices and requires a closer look.
Principally, it is not possible to reconstitute a juice which is not marketable due toits patulin content, not even if treated thoroughly. Nevertheless, patulin reductionmakes sense in marketable standard juices and in nutrition physiological respect.The exact dosage of activated carbon required depends on very individual factors,e.g., initial concentration, temperature and duration of treatment.
Filter cellulose
grain size
CelluFluxx® F25
fine
CelluFluxx® F45
medium
CelluFluxx® F75
medium coarse
CelluFluxx® P30
coarse
CelluFluxx® P50
extra coarse
100 20 30 40 50 60
patulin% reduction
0%blank sample
-10%chemically activated carbon for colour treatment
-37%physically activated special carbon
-65%Ercarbon PT activated carbon treatment ofapple juice with 75 g/100 L
C M Y CM MY CY CMY K
New, efficient fining agents forequipment protection Jürgen Helbig
New fining agents for crossflow plants
Fining and crossflow filtration
A well-known fact is that fining agents do not remain in the beverage, but are separated after completed reaction. Differentmeasures can be taken to achieve separation, either solely or in combination. Principally, methods can be subdivided in:
1. filtration with filter aids
2. sediment separation by centrifugal force
3. crossflow filtration
Classical juice clarification can be seen as a combination of sedimentation, filtration of the sediment and subsequentkieselguhr filtration. For quality reasons, this is the widestspread form of coloured juice-making still today. Principally,apparatuses with centrifugal effect can equally cover the task. In the last years, especially also crossflow filtration systemsbecame a permanent part in the fruit juice industry. Division is made between microfiltration and ultrafiltration.
So far on offer are bentonites and activated carbons with relatively unspecific particle size distribution. This refers in particularto the portion of oversize material. Yet particularly these larger components cause the most intensive abrasivity in crossflow filtersby permanent mechanical stress. Conventional filtration is hardly affected. Consequently fruit juice producers should have bentonitesand activated carbons at their disposal which in their composition take into account the different filtration principles. This wasthe aim of the two new product developments, the bentonite Blancobent UF and the activated carbon Akticol FA-UF.
� Microfiltration is employed for both the clarification of apple juices, as well as of coloured juices. Colloidal stability is not achieved by filtration but by the adsorptive and electrostatic action of the fining agents.
� Ultrafiltration is predominantly used for the processing of pome fruit juices, in the course of which polysulphone aswell as ceramic modules are employed.
The assumption to be able to replace conventional filtration and also stabilising fining with the introduction of ultrafiltrationhas still not been entirely realized to this day. At least the necessity of an additional fining has frequently remained andincreasingly gains importance. The choice of fining agents and dosage amounts depend on the specific, but steadily risingstability criteria. In practice, however, the fining agents applied are separated by sediment filtration only partially, orsometimes not at all, which means they pass to a more or less large extent into the crossflow filter plant. Contrary toconventional sediment separation, the sediment becomes more and more concentrated in the retentate and in additionremains a very long time in the plant due to permanent membrane overflow. Thus, in contrast to conventional fining andfiltration, entirely changed conditions result and the question arises:
The same fining agents for different filtration processes?
Dependent on the aims which are pursued, crossflow systems are nowadays charged with juices which have been treatedwith bentonite, activated coal, gelatine and silica sol. From the point of view of fining agent producers, no conclusive reasonsexist to keep gelatine or silica sol treated juices away from ultrafiltration or microfiltration plants. Yet, it is recommendedto contact the manufacturer of the filtration equipment.
The situation turns out to be different with bentonite and activated carbon:Regarding these natural and for the beverage industry specially prepared and improved products won by mining, the particlesize distribution so far has not played a central part. But now, due to the above-mentioned fact that sediments permanentlyoverflow the membrane, including peripheral equipment, the particle size gains a totally new importance. It has an impacton abrasivity, and thus affects the operating life of the plant parts. Large-size particles, also single ones, have to be avoided!
Differences of the innovative new products
Summary
With the products Blancobent UF and Akticol FA-UF, now two highly efficient special products are available to improvejuice stability in combination with crossflow filtration. Their small particle size and uniform particle size distribution isresponsible for this. By the particularly high efficiency of the products an overall reduction of applied dosages is possible.Practical trials let expect a low formation of monogalacturonic acid. The findings will be followed up.
1. Particle fineness and particle size distributionBy observance of a firmly defined particle size distribution and highest material fineness at the same time, the preconditions fora careful treatment effect to protect the plants are created.
3. Cost savings
An economic production as prerequisite for the best price-efficiency relation of the products, and consequently no additionalexpenditures for treatment agents but savings by longer operating life/operating cycles of valuable plants and equipment.
4. End product quality
Most probably, galacturonic acid formation is lower since the total bentonite amount remains in the retentate for a long time.The pectinase activity is therefore already inactivated there.
1.) 2.) average values from 15 samples each
Ca/Na bentonites 1.)
Activated carbons (type FA) 2.)
Blancobent UF
Akticol FA-UF
45μm
93.6 %
82.4 %
99.8 %
99.9 %
45μm- < 100 μm
4.6 %
13.9 %
0.2 %
0.1 %
100 μm
1.8 %
3.7 %
0 %
0 %
Particle fractions in %
2. New, more efficient raw materials
Application of new, still more active raw materials for bentonite and activated carbon production. Thus it is possible to reduceoverall dosage amounts considerably.
0
1
2
3
4
5
6
7
8
9
10
50 g/hl 75 g/hl 100 g/hl 150 g/hl 200 g/hl 50 g/hl 75 g/hl 100 g/hl 150 g/hl 200 g/hl
50 Akticol FA-UF & bentonite only bentonite
NTU-values after heat/chill test
NEW
Blancobent UFCa/Na bentonite
C M Y CM MY CY CMY K
New, efficient fining agents forequipment protection Jürgen Helbig
New fining agents for crossflow plants
Fining and crossflow filtration
A well-known fact is that fining agents do not remain in the beverage, but are separated after completed reaction. Differentmeasures can be taken to achieve separation, either solely or in combination. Principally, methods can be subdivided in:
1. filtration with filter aids
2. sediment separation by centrifugal force
3. crossflow filtration
Classical juice clarification can be seen as a combination of sedimentation, filtration of the sediment and subsequentkieselguhr filtration. For quality reasons, this is the widestspread form of coloured juice-making still today. Principally,apparatuses with centrifugal effect can equally cover the task. In the last years, especially also crossflow filtration systemsbecame a permanent part in the fruit juice industry. Division is made between microfiltration and ultrafiltration.
So far on offer are bentonites and activated carbons with relatively unspecific particle size distribution. This refers in particularto the portion of oversize material. Yet particularly these larger components cause the most intensive abrasivity in crossflow filtersby permanent mechanical stress. Conventional filtration is hardly affected. Consequently fruit juice producers should have bentonitesand activated carbons at their disposal which in their composition take into account the different filtration principles. This wasthe aim of the two new product developments, the bentonite Blancobent UF and the activated carbon Akticol FA-UF.
� Microfiltration is employed for both the clarification of apple juices, as well as of coloured juices. Colloidal stability is not achieved by filtration but by the adsorptive and electrostatic action of the fining agents.
� Ultrafiltration is predominantly used for the processing of pome fruit juices, in the course of which polysulphone aswell as ceramic modules are employed.
The assumption to be able to replace conventional filtration and also stabilising fining with the introduction of ultrafiltrationhas still not been entirely realized to this day. At least the necessity of an additional fining has frequently remained andincreasingly gains importance. The choice of fining agents and dosage amounts depend on the specific, but steadily risingstability criteria. In practice, however, the fining agents applied are separated by sediment filtration only partially, orsometimes not at all, which means they pass to a more or less large extent into the crossflow filter plant. Contrary toconventional sediment separation, the sediment becomes more and more concentrated in the retentate and in additionremains a very long time in the plant due to permanent membrane overflow. Thus, in contrast to conventional fining andfiltration, entirely changed conditions result and the question arises:
The same fining agents for different filtration processes?
Dependent on the aims which are pursued, crossflow systems are nowadays charged with juices which have been treatedwith bentonite, activated coal, gelatine and silica sol. From the point of view of fining agent producers, no conclusive reasonsexist to keep gelatine or silica sol treated juices away from ultrafiltration or microfiltration plants. Yet, it is recommendedto contact the manufacturer of the filtration equipment.
The situation turns out to be different with bentonite and activated carbon:Regarding these natural and for the beverage industry specially prepared and improved products won by mining, the particlesize distribution so far has not played a central part. But now, due to the above-mentioned fact that sediments permanentlyoverflow the membrane, including peripheral equipment, the particle size gains a totally new importance. It has an impacton abrasivity, and thus affects the operating life of the plant parts. Large-size particles, also single ones, have to be avoided!
Differences of the innovative new products
Summary
With the products Blancobent UF and Akticol FA-UF, now two highly efficient special products are available to improvejuice stability in combination with crossflow filtration. Their small particle size and uniform particle size distribution isresponsible for this. By the particularly high efficiency of the products an overall reduction of applied dosages is possible.Practical trials let expect a low formation of monogalacturonic acid. The findings will be followed up.
1. Particle fineness and particle size distributionBy observance of a firmly defined particle size distribution and highest material fineness at the same time, the preconditions fora careful treatment effect to protect the plants are created.
3. Cost savings
An economic production as prerequisite for the best price-efficiency relation of the products, and consequently no additionalexpenditures for treatment agents but savings by longer operating life/operating cycles of valuable plants and equipment.
4. End product quality
Most probably, galacturonic acid formation is lower since the total bentonite amount remains in the retentate for a long time.The pectinase activity is therefore already inactivated there.
1.) 2.) average values from 15 samples each
Ca/Na bentonites 1.)
Activated carbons (type FA) 2.)
Blancobent UF
Akticol FA-UF
45μm
93.6 %
82.4 %
99.8 %
99.9 %
45μm- < 100 μm
4.6 %
13.9 %
0.2 %
0.1 %
100 μm
1.8 %
3.7 %
0 %
0 %
Particle fractions in %
2. New, more efficient raw materials
Application of new, still more active raw materials for bentonite and activated carbon production. Thus it is possible to reduceoverall dosage amounts considerably.
0
1
2
3
4
5
6
7
8
9
10
50 g/hl 75 g/hl 100 g/hl 150 g/hl 200 g/hl 50 g/hl 75 g/hl 100 g/hl 150 g/hl 200 g/hl
50 Akticol FA-UF & bentonite only bentonite
NTU-values after heat/chill test
NEW
Blancobent UFCa/Na bentonite
C M Y CM MY CY CMY K
Approved technical aids - secure processing -perfect fruit juice delight!
ERBSLÖH Geisenheim AG • D-65366 Geisenheim • Tel.: +49 6722 708-0 • www.erbsloeh.com
juicenews
Geisenheim Information No. 3
Cellulose insteadof kieselguhr
Importance of themycotoxin patulin forthe fruit juice industry
New, efficient finingagents for equipmentprotection NEW
Fructozym® P
Fructozym® Color
Fructozym® BE
Fructozym® FLUX
Fructozym® P6-XL
Fructamyl® HT
Fructamyl® FCT
Fructamyl® FHT
Fructozym® UF
Fructozym® M
Fructozym® MA-X-Press
Fructozym® MA
Fructozym® MA-LG
Fructozym® S-PRESS
Fructozym® MB
Pectin degradation in fruit juice
Maximum colour extraction and preservation in coloured juices
Pectin degradation in berry juices rich in colloids
Reduction of cell wall colloids in case of challenging filtration- and stability requirements
Pectin degradation in juices and all general requirements to reduce viscosity
Complete starch degradation with amyloglucosidase
Compl. starch degradation and prevention of filamentous haze in cold clarification up to 30°C
Compl. starch degradation and prevention of filamentous haze during hot clarific. at 25-60°C
Improvement of flux rate, clarification and general juice stability
Production of cloud-stable juices or purees from fruits and vegetables
Strong increase of yield and capacity in case of fresh and stored pome fruits
Accurate enzymatic treatment of complex fruit mashes
Pomace processing resulting in maximum yield and lowest release of undesired substances
Increase of yield and capacity in case of fresh pome fruits, stone fruits and berries
Production of colour intensive and colour stable juices with intensive mouthfeel
Pectinases:
Amylases:
Ultrafiltration:
Maceration:
Mash enzymes:
Bentonites:
Gelatine:
Silica sols:
Active carbons:
NaCalit® PORE-TEC
Aktivit
Ca-Granulat
Blancobent UF
ErbiGel®
Klar-Sol Super
Klar-Sol Speedfloc
Klar-Sol 30
Ercarbon FA/Akticol FA
Akticol FA-UF
Ercarbon PT
Ercarbon SH
Granucol® Fa/Bi/Ge
Efficient stabilisation of proteins with bentonite of highest purity, colour preserving
Good protein stabilisation with comparably small formation of fining deposits
Clarification and protein stabilisation for low pH beverages
Equipment protecting, highly efficient beverage stabilisation, colour preserving
Clarification and phenol stabilisation with specially suited, medium Bloom gelatine
Secure clarification of all fruit juices, also for problematic cases
Clarification of fruit juice, particularly efficient in hot clarification processes
Universal, economic use of alkaline silica sol
Colour reduction in case of off-colours, highest purity carbons
Colour and phenol stabilisation with subsequent carbon removal by means of CFF systems
Reduction of patulin
Adsorption of off-taste, disturbing substances and HMF
Granulated activated carbons for various purposes
Viniferm C2
Oenoferm® Freddo
Oenoferm® Bouquet
Fast, reliable fermentation without formation of undesired by-products
Fast, reliable fermentation, also at low temperatures below 12°C
Fermentation of substrates high in sugar / low in nutrients
Boerovin
Kadifit
Vinosorb®neu
Ercobin
Addition of biologically gained L (+) lactic acid
Potassium disulfite for sulphuring
Potassium sorbate to prevent fermentation
Protection against oxidation by vitamin C
Enzymes for the production of fruit juices and fruit wines
Clarification and stabilisation of fruit juices and fruit wines
Fermentation of fruit wines
Acid adaptation and stabilisation of fruit wines
Sensory improvementGerbinol® Super
Kal-Casin Leicht löslich
Correction of phenolic off-odors and off-tastes
Elimination of undesired, strong phenolic components and oxidation by-products
6 senses for your success!
6 senses for your success!
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