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Control of internal browning and quality improvement of ‘Fuji’ apples by stepwise increase of CO 2 level during controlled atmosphere storage
Author(s) -
Chung HunSik,
Moon KwangDeog,
Chung ShinKyo,
Choi JongUck
Publication year - 2005
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.1867
Subject(s) - browning , titratable acid , chemistry , controlled atmosphere , carbon dioxide , cold storage , horticulture , flesh , modified atmosphere , postharvest , zoology , food science , botany , shelf life , biology , organic chemistry
To control internal browning injury and to reduce quality loss in ‘Fuji’ apples during storage, a stepwise controlled atmosphere (CA) method was applied in this study. Both non‐bagged and bagged apples during maturation were stored at 0 °C under 1% O 2 + 1% CO 2 , 1% O 2 + 3% CO 2 or air for 10 months, and 1% O 2 + 1% CO 2 for 2 months followed by 1% O 2 + 3% CO 2 for 8 months (stepwise CA). The concentrations of internal ethylene and carbon dioxide in apples kept for 24 h at 20 °C after storage under CA conditions were maintained at low level, but there was no effect of stepwise CO 2 increase on internal gas concentrations. The non‐bagged and bagged apples stored under stepwise CA were not significantly different from those stored under 1% O 2 + 3% CO 2 continuously for 10 months in term of flesh firmness, titratable acidity and yellowing index. However, the apples stored under stepwise CA were firmer, more acid and greener than those stored under 1% O 2 + 1% CO 2 continuously for 10 months. Internal browning injury occurred in apples stored under 1% O 2 + 3% CO 2 continuously for 10 months, but it was suppressed completely by stepwise CA storage. The stepwise CA, increasing of CO 2 level after holding at 1% CO 2 for the first 2 months of storage, was effective in maintaining the quality and controlling the internal browning injury in non‐bagged and bagged ‘Fuji’ apples. Copyright © 2005 Society of Chemical Industry

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