期刊
POSTHARVEST BIOLOGY AND TECHNOLOGY
卷 95, 期 -, 页码 36-41出版社
ELSEVIER
DOI: 10.1016/j.postharvbio.2014.04.001
关键词
Button mushroom; Chemical pretreatments; Storage; Quality; Antioxidant enzymes; Reactive oxygen species
资金
- National Natural Science Foundation of China [31171766]
- Chinese Scholarship Council (CSC)
This study evaluated the effects of composite chemical pretreatment on the quality of postharvest button mushrooms. Three different treatments, including (T1) control (water), (T2) 1 mmol L-1 Na(2)EDTA+ 10 mmol L-1 CaCl2 and (T3) 1 mmol L-1 Na(2)EDTA+ 2.5% CaCl2 + 0.5% citric acid +2.5% sorbitol were used for pretreatments. The results showed that T3-treated samples maintained good firmness and color and had less weight loss during the postharvest storage. Lower levels of H2O2, -OH and low malondialdehyde content (MDA) were observed in T3 compared with Ti and T2 samples. Significantly higher soluble protein contents and higher activities in the antioxidant enzymes, i.e., superoxide dismutase (SOD), catalase (CAT), ascorbate peroxidase (APX), peroxidase (POD) were observed in T3 compared with Ti and T2 at the end of the storage period (P<0.05). These results suggest that the T3 treatment could be useful in preserving button mushrooms. (C) 2014 Elsevier B.V. All rights reserved.
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