To solve the problems of cell membrane lipid peroxidation and quality deterioration during low-temperature storage of cucumbers, cucumbers were treated with the unpackaged group, the membrane-packaged group without holes, microporous membrane group with 8 holes, and microporous membrane group with 16 holes. They were refrigerated at 4 ℃ for one week and then stored at 23 ℃ for one week. Combined with principal component analysis (PCA), the effect of microporous membrane technology on lipid peroxidation and quality control of cucumber cell membranes during circulation after refrigeration was studied. The results showed that the respiration rate was decreased and the activities of catalase (CAT), peroxidase (POD), and superoxide dismutase (SOD) were enhanced in the microporous membrane packaging group by better controlling the exchange of gases inside and outside the packaging. Meanwhile, the stress resistance of cucumber was improved. In addition, it could effectively reduce the production of ·O-2, inhibit the activity of lipoxygenase (LOX), maintain the balance of active oxygen metabolism, delay the generation rate of malondialdehyde (MDA) and increase the electrical conductivity, protect the integrity of cell membrane, and better maintain the storage quality of cucumber. The principal component analysis could express the information of the original data well so that the quality change trend of each treatment group could be intuitively understood. Compared with the unpackaged group, all the packaging groups could delay the quality decline of cucumber, and the effect of the 8-well microporous membrane group was the best.
YIN Jiewen
,
HE Xiaomei
,
JIA Jiayi
,
ZHANG Siyuan XIAO Xu
,
ZHANG Min
. Effect of microporous membrane packaging on retarding cell membrane lipid peroxidation and quality deterioration of cucumber after cold storage based on principal component analysis[J]. Food and Fermentation Industries, 2022
, 48(22)
: 227
-234
.
DOI: 10.13995/j.cnki.11-1802/ts.029322
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