AOCS STANDARD METHOD CD 12b-92
OXIDATIVESTABILITYINSTRUMENTsMeasure the Oxidative Stability
of
FATS AND OILS FAT SUBSTITUTES COCOA BUTTER SNACK FOODS
SHORTENING BAKERY PRODUCTS BUTTER AND MARGARINE CASHEWS GROUND NUTS
PEANUT BUTTER POTATO CHIPS PET FOODS TALLOW SUET LARD CANDY
OIL-CONTAINING FOOD PRODUCTS COSMETIC INGREDIENTS PVC COOKIES
CRACKERS DEHYDRATED MEATS SEEDS AND MORE
Simply, with Precision and Accuracy,
Evaluate Antioxidants and Monitor Deterioration of Cooking
Oils.
Manufactured by Omnion Scientific Instruments, a division of
ULTRA Scientific, under license from Archer Daniels Midland
Company.Protected under one or more of the following patents:
5,463,321, 92301430.2
ULTRA Scientific, Inc. is a global leader in analytical chemical
solution manufacturing, offering certified reference materials, QC
standards, reagents and other laboratory solutions to meet the
needs of laboratory professionals world-wide. Founded in 1976,
ULTRAs corporate headquarters is in North Kingstown, RI and
operates sales offices and distribution centers in Bologna, Italy
and Wesel, Germany.
ULTRAs extensive catalog listing of chemical standards is
complemented by our flexibility to manufacture custom solutions to
exacting specifications. We sell products and services direct to
end-user laboratories, through international and regional
distribution, and under OEM partnerships with multinational
instrument manufacturers.
Omnion Scientific Instruments (OSI), as a wholly-owned
subsidiary of ULTRA Scientific, manufactures chemical standards,
reagents and 123 Ion Selective Electrode Meters for the measurement
of sodium, chloride, potassium and calcium content in food,
beverage, feed and grain. In addition, ULTRA manufactures a line of
Oxidative Stability Instruments to analyze the stability of
biodiesel, oils, fats, fat substitutes, plastics and cosmetics.
ENVIRONMENTAL | LIFE SCIENCE | FOOD & BEVERAGE | FEED &
GRAIN | INDUSTRIAL | RESEARCH
Rely on ULTRAs 35+ years of technical experience in measurement
science, as we work to provide innovative, quality products in a
timely, cost-effective and efficient manner.
ABOUT ULTRA SCIENTIFIC
CALL (800) 338-1754 VISIT www.ultrasci.com E-MAIL
[email protected]
TRIPL
E ISO CERTIFICATION
ISO 17025 ISO GUIDE 34
I
SO 9
001
TO ORDER FROM ULTRA SCIENTIFIC
a division of ULTRA Scientific.
THE OIL STABILITY INDEX
Definition: All oils and fats have a resistance to oxidation
which depends on the degree of saturation, natural or added
antioxidants, prooxidants or prior abuse. Oxidation is slow until
this resistance is overcome, at which point oxidation accelerates
and becomes very rapid. The length of time before this rapid
acceleration of oxidation is the measure of the resistance to
oxidation and is commonly referred to as the induction period, or
Oxidative Stability Index.
The Omnion Oxidative Stability Instruments provide an
instrumental determination of the oxidative stability of fats oils
and other organic materi-als, eliminating the time, inconvenience,
hazards and errors associated with manual titrations. Continuous
data monitoring (up to 24 channels simultaneously) ensures no
missed endpoints.
Shelf Life/Predictive ValueThe Omnion OSI accelerates the
development of oxidative rancidity so that the useful life of an
oil containing material may be determined. Unlike tests such as
peroxide value, which determine oil quality only at the time of the
test, the OSI has predictive value, therby allowing quality
decisions to be made before spoilage becomes a problem.
The OSI is an invaluable quality control tool for eliminating
inferor ingredients, for isolating process variables causing
stability problems, for measur-ing the stability of finished
products, for evaluating antioxidant activity, for monitoring the
deterioration of cooking oils with use, for determining the
stability of PVC, and for many other applications where oxidative
rancidity is the cause of product failure. Because the OSI has
predictive value, problems are detected and eliminated before they
cause rejection, unlike other tests which merely indicate that
problems have occurred after it is too late to correct them.
Designed for precision and accuracy, ease of use and
maintenance, and inexpensive operation, the OSI is used worldwide
by refineries, food compa-nies, pharmaceutical concerns, research
institutes, chemical firms, pet food manufacturers, universities
and governments agencies.
THE OSI ADVANTAGEEASY TO USE | SIMPLE TO MAINTAIN | NO MOVING
PARTS | NO CHEMICALS | UNBREAKABLE SENSORS
Excellent precision
Continuous data monitoring ensures no missed endpoints
Automatically calculates induction times and plots
conductivity/time curves
Maximum sample throughput Load new samples or remove analyzed
samples without affecting runs in progress
Temperature selection and operation OSI-24: two temperatures
between 40-220 C OSI-6: any temperature between 40-220 C
Sample cells are test tubes which are inexpensive. They are
often considered disposable, eliminating expensive and time
consuming cleaning procedures
Conductivity cells are inexpensive test tubes
Rugged, unbreakable, chemically inert sensors provide long life
and stable cell constants
Excellent temperature control
OSI-24
OSI-6
THE OSI PROGRAM
Continuous data monitoring
Measure up to 24 channels simultaneously
Automatic endpoint determinations
Graph data; current or historical
Store, recall, overlay complete OSI curves for exact
batch-to-batch comparisons
Conversion algorithms a) OSI/OSI converts OSI at one temperature
to OSI at any
other temperatureb) OSI/AOM converts OSI to 97.8 C AOMc) AOM/OSI
converts AOM to OSI at any temperature
Instrument status obtained at a keystroke allows status of all
channels to be simultaneously examined
Current data is immediately displayed on all channels
OSI CONFIGURATION OSI FLOW CELL DIAGRAM
TYPICAL OSI APPLICATIONSDeterioration of frying oil quality
Vegetable Oil Peanuts
OSI-6 (P/N: 126006) OSI-24 (P/N: 12600) Glass Pippettes (P/N:
12611) 2-Hole Stopper (P/N: 12612) 3-Hole Stopper (P/N: 12613)
Polycarbonate Tube (P/N: 12614) 48-piece Silicon Tubing (P/N:
12615) 3 Glass Tube (P/N: 12616) Conductivity Probe (P/N:
12617)