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食品研究与开发:2023,44(20):70-75
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高浓度CO2应激调控对秋季鲜枸杞贮藏品质的影响
(1.天津科技大学 食品科学与工程学院,天津 300457;2.天津科技大学 省部共建食品营养与安全国家重点实验室,天津 300457;3.天津鲜食原品生物科技有限公司,天津 300457;4.宁夏大学 食品与葡萄酒学院,宁夏 银川 750021)
Effect of High-Concentration CO2 Stress on the Storage Quality of Fresh Goji Berries Harvested in Autumn
(1.College of Food Science and Engineering,Tianjin University of Science and Technology,Tianjin 300457,China;2.State Key Laboratory of Food Nutrition and Safety,Tianjin University of Science and Technology,Tianjin 300457,China;3.Tianjin Fresh Food and Biological Technology Co.,Ltd.,Tianjin 300457,China;4.College of Enology and Horticulture,Ningxia University,Yinchuan 750021,Ningxia,China)
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投稿时间:2023-02-01    
中文摘要: 为探究枸杞鲜果对应激气体的响应机制,开发安全、绿色、简便、无残留的枸杞鲜果诱抗保鲜技术。采取低浓度1-甲基环丙烯(1-methylcyclopropene,1-MCP)熏蒸结合20%、50%和80%浓度CO2 短时气体应激耦合处理,研究宁夏枸杞鲜果在温度(0±1)℃和相对湿度(93±3)%贮藏环境下的品质调控规律。结果表明:0.1 μL/L 的1-MCP 熏蒸24 h耦合50% CO2 30 min 熏蒸可有效延长枸杞鲜果的贮藏品质,明显降低鲜果的失重率、呼吸强度和腐烂指数;减缓脂氧合酶(lipoxygenase,LOX)活性和丙二醛(malondialdehyde,MDA)的积累,增强过氧化物酶(peroxidase,POD)和苯丙氨酸解氨酶(phenylalanine ammonia-lyase,PAL)的酶活性,从而提高鲜果的抗逆性。
Abstract:The response of fresh goji berries to gas stress was studied for the development of a safe,green,simple,and non-residual technology for the preservation of fresh goji berries.The low-concentration 1-methylcyclopropene(1-MCP)fumigation coupled with short-term 20%,50%,and 80% CO2 stress was employed to treat Ningxia fresh goji berries harvested in autumn,and the quality of the berries stored at(0±1)℃and the relative humidity of (93±3)% was evaluated.The results showed that 0.1 μL/L 1-MCP fumigation for 24 h coupled with 50% CO2 fumigation for 30 min prolonged the storage period of fresh goji berries harvested in autumn.Specifically,the treatment significantly reduced the weight loss rate,respiration intensity,and decay index,decreased the lipoxygenase(LOX)activity,delayed the accumulation of malondialdehyde(MDA),and enhanced the activities of peroxidase(POD)and phenylalanine ammonia-lyase(PAL)to improve the stress resistance of the fruits.
文章编号:202320010     中图分类号:    文献标志码:
基金项目:宁夏枸杞冷鲜物流关键技术与功能食品配料研发与示范项目(2020BBF03014)
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