Kiwifruit size influences softening rate during storage
Author(s) -
Carlos H. Crisosto,
David Garner,
Katia Sáez
Publication year - 1999
Publication title -
california agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.472
H-Index - 25
eISSN - 2160-8091
pISSN - 0008-0845
DOI - 10.3733/ca.v053n04p29
Subject(s) - softening , actinidia deliciosa , controlled atmosphere , bin , horticulture , chemistry , ethylene , carbon dioxide , botany , materials science , biology , mathematics , composite material , biochemistry , organic chemistry , algorithm , catalysis
Large (~101 grams), medium (~93 grams) and small (~81 grams) 'Hayward' kiwifruits were stored in either ethylene-free air or in a controlled atmosphere (CA) of 5% carbon dioxide (CO2) and 2% oxygen (O2) at 32°F for 16 weeks. Under both storage conditions, large fruit had a slower rate of softening than smaller fruit. Air-stored kiwi-fruit softened approximately 2.6 times faster than CA-stored fruit. Under air conditions, large, medium and small kiwifruit reached 5.0 lbf (the minimum pounds firmness required for packaging with minimal bruising) by 12, 10 and 8 weeks, respectively, while those stored under CA conditions softened to 5.0 lbf by 49, 30 and 20 weeks, Understanding the relationship between fruit size and the rate of softening under air and CA conditions will help cold storage managers safely monitor kiwifruit softening during bin storage
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