精胺
化学
抗氧化剂
胡椒粉
采后
亚精胺
抗坏血酸
食品科学
过氧化氢酶
园艺
壳聚糖
叶绿素
生物化学
酶
生物
有机化学
作者
Swati Sharma,Hare Krishna,Kalyan Barman,Basudev Kole,Sudhir Singh,Tusar Kanti Behera
标识
DOI:10.1016/j.sajb.2022.09.002
摘要
This study investigated the effects of treating bell pepper fruit cv. Rehana by dipping with spermidine and spermine (0.5, 1.0 and 1.5 mM) and coating with chitosan (1%) on fruit quality, bio-active compounds, antioxidant enzyme activities, shelf life and senescence related compounds. The fruit were stored at 10 °C and 80–90% RH for 56 days. The results revealed that synergistic treatment of spermine 1.5 mM and chitosan 1% (T7) was most effective for reducing weight loss, electrolyte leakage, maintaining fruit quality and enhancing antioxidant activity over other treatments during storage. The bell pepper fruit of T7 treatment exhibited lowered weight loss by 47.6%, electrolyte leakage by 62.6%, malondialdehyde accumulation by 28.3% while maintaining higher total phenols by 68.8%, total carotenoid by 21.9%, ascorbic acid by 15%, total chlorophyll by 30.4%, catalase activity by 34.3% in comparison to control (T1) on the last day of storage. Other treatments showed intermediate effects. The results suggest potential beneficial influence of synergistic treatment of polyamines, particularly spermine 1.5 mM with chitosan in extending shelf life of bell pepper by about 28 days relative to control with notable preservation of bioactive compounds, antioxidant enzymes and slowing senescence indicators over untreated fruit.
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