Peach size affects storage, market life
AuthorsCarlos H. Crisosto
Kevin R. Day
Authors AffiliationsC.H. Crisosto is Postharvest Physiologist; D. Garner is Staff Research Associate, Kearney Agricultural Center; L. Cid is Professor, University of Concepción, Department of Mathematics, Concepción, Chile; K.R. Day is Tree Fruit Farm Advisor, UCCE, Tulare County.
Hilgardia 53(5):33-36. DOI:10.3733/ca.v053n05p33. September 1999.
During the 1995 season, large (~275g), medium (~175g) and small (~125g) ‘O'Henry’ peaches were stored in either air, 5% CO2 + 2% O2 or 17% CO2 + 6% O2 at 380F (3.30C). Large ‘O'Henry’ peaches benefited more from the 17% CO2 + 6% O2 than from either the 5% CO2 + 2% O2 or the air storage treatment. During the 1996 season, large, medium and small ‘Elegant Lady’ and ‘O'Henry’ peaches were stored in air or in 17% CO2 + 6% O2 at either 320F (00C) or 380F. Fruit size, storage atmosphere and temperature all had significant effects on chilling injury development. Small peaches stored in air at 320F had a longer market life than large fruit. At both storage temperatures, large ‘Elegant Lady’ and ‘O'Henry’ peaches had a longer market life under controlled atmosphere than under air storage. However, at 380F, small ‘Elegant Lady’ fruit in controlled atmosphere showed browning in the flesh. This suggests that 17% CO2 + 6% O2 may induce flesh browning in small ‘Elegant Lady’ peaches. In both years, lack of juiciness (mealiness/leatheriness) was observed before the development of flesh browning. Thus market life depended on the incidence of mealiness/leatheriness rather than on flesh browning.
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