1 Postharvest Handling Banana & Pineapple Beth Mitcham Dept. Plant Sciences UCDavis PINEAPPLE PINEAPPLE Maturity and Ripeness Stages Intercultivar differences in composition of pineapples Premium Select =Tropical Gold Days from Anthesis Shell Color Chl mg/g Dry wt. % Soluble solids % Titratable acidity % Total sugar % Vit C mg/100g Sensory score* 115-120 Green 0.77 12.97 7.9 0.66 6.49 13.7 3.0 135-140 1/8 0.76 15.26 12.6 0.74 8.87 13.9 4.6 141-145 1/4 0.63 16.09 18.2 0.77 11.25 14.4 5.4 146-150 1/2 0.53 17.65 18.9 0.77 11.99 14.9 6.8 151-155 2/3 0.21 17.76 18.0 0.83 12.44 15.3 6.7 156-160 Full 0.14 19.89 16.3 0.96 12.74 14.5 6.4 LSD.05 0.01 0.17 0.87 0.07 0.08 0.5 0.2 Deka et al. 2005. Standardization of maturity indices of ‘Kew’ pineapple. Acta Hort. 682: 2215. * Sensory determined by panel of 10 untrained members based on nine point hedonic scale Indian Kew Pineapples and Composition at Different Stages of Ripeness Mitcham, Beth "Tropical Fruits - Banana, Pineapple: Postharvest Handling Systems" Postharvest Technology of Horticultural Crops Short Course 2015 (c) Postharvest Technology Center, UC Regents
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Postharvest Handling Banana & PineappleBanana Banana Maturity Stages Delaying harvest until the full mature-green stage results in higher yield and better eating quality when ripe.
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Postharvest Handling Banana & Pineapple
Beth MitchamDept. Plant Sciences
UCDavis
PINEAPPLEPINEAPPLE
Maturity and Ripeness Stages
Intercultivar differences in composition of
pineapples
Premium Select =Tropical Gold
Days from
Anthesis
Shell Color
Chlmg/g
Dry wt.%
Soluble solids
%
Titratable acidity
%
Total sugar
%
Vit Cmg/100g
Sensory score*
115-120 Green 0.77 12.97 7.9 0.66 6.49 13.7 3.0
135-140 1/8 0.76 15.26 12.6 0.74 8.87 13.9 4.6
141-145 1/4 0.63 16.09 18.2 0.77 11.25 14.4 5.4
146-150 1/2 0.53 17.65 18.9 0.77 11.99 14.9 6.8
151-155 2/3 0.21 17.76 18.0 0.83 12.44 15.3 6.7
156-160 Full 0.14 19.89 16.3 0.96 12.74 14.5 6.4
LSD.05 0.01 0.17 0.87 0.07 0.08 0.5 0.2
Deka et al. 2005. Standardization of maturity indices of ‘Kew’ pineapple. Acta Hort. 682: 2215.
* Sensory determined by panel of 10 untrained members based on nine point hedonic scale
Indian Kew Pineapples and Composition at Different Stages of Ripeness
Mitcham, Beth "Tropical Fruits - Banana, Pineapple: Postharvest Handling Systems" Postharvest Technology of Horticultural Crops Short Course 2015 (c) Postharvest Technology Center, UC Regents
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Initial Quality Evaluation of Pineapples at the Packinghouse
Water dumping and washing pineapples
Air turbines to remove excess water Application of chlorinated water to butt
Wax application to fruit
Forced airdrying
Slides fromC. Demerutis, Costa Rica
Pineapple Handling• Importance of wax application
– Improve fruit appearance
– Reduce internal browning-modified atmosphere created
– Reduce water loss
– Reduce pathogen growth
• Importance of dry crown– Reduce decay
Mitcham, Beth "Tropical Fruits - Banana, Pineapple: Postharvest Handling Systems" Postharvest Technology of Horticultural Crops Short Course 2015 (c) Postharvest Technology Center, UC Regents
Blackheart symptoms in Hawaiian Gold (HG) and Smooth Cayenne (SC) pineapple fruit following chilling. 10 fruit were incubated at 23, 10, 6, 4, 2 and 0°C for 14 d followed by 23°C for 7 d. Stewart et al., 2002Stewart et al., 2002
Selvarajah et al., 2001
Chen and Paull, 2001 showed removing crown had no effect, but others have shown that removing 1/3 of plant leaves reduces translucency.
Mitcham, Beth "Tropical Fruits - Banana, Pineapple: Postharvest Handling Systems" Postharvest Technology of Horticultural Crops Short Course 2015 (c) Postharvest Technology Center, UC Regents
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Banana
Banana Maturity Stages
Delaying harvest until the full mature-green
stage results in higher yield and better eating
quality when ripe.
Preparing a banana bunch for harvest System for transporting banana bunches to packing station
Delivering Bananas to Packinghouse
Some of the banana handling slides were provided by Eduardo Kerbel
Initial Washing of Bananas at Packinghouse
Mitcham, Beth "Tropical Fruits - Banana, Pineapple: Postharvest Handling Systems" Postharvest Technology of Horticultural Crops Short Course 2015 (c) Postharvest Technology Center, UC Regents
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Cutting and Placing Banana Hands into Water
Banana Packinghouse Banana Packing
Surface abrasions
Internal bruising due to drops
Crown rot caused by several fungi:Fusarium roseum, Lasiodiplodia theobromae, Thielaviopsis paradoxa, Colletotrichum musae