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投稿时间:2024-01-25
投稿时间:2024-01-25
中文摘要: 为研究海藻酸钠与滑菇肽复合涂膜对香菇保鲜效果的影响,以香菇为主要试材,分别采用蒸馏水、海藻酸钠、滑菇肽、海藻酸钠-滑菇肽浸泡处理,4 ℃贮藏21 d,每隔3 d 测定感官品质、氧化应激水平、营养成分等指标。结果表明,贮藏21 d 后复合保鲜剂处理能够降低香菇的呼吸强度和失重率,抑制多酚氧化酶(polyphenol oxidase,PPO)活性的增加和总酚积累,减少褐变的发生;维持较高的超氧化物歧化酶(superoxide dismutase,SOD)活性和过氧化氢酶(catalase,CAT)活性,抑制相对电导率上升和丙二醛(malondialdehyde,MDA)积累;抑制可溶性固形物和维生素C含量下降。综上,海藻酸钠与滑菇肽复合涂膜对维持香菇采后贮藏品质具有良好效果,能够延长香菇贮藏期。
Abstract:The objective of the present study was to investigate the effect of sodium alginate and?Pholiota nameko?peptides on fresh keeping of?Lentinus?edodes.?L.?edodes?was coated with distilled water,sodium alginate,P.?nameko?peptides,and the combination of sodium alginate and?P.?nameko?peptides,respectively,and then stored at 4 ℃for 21 d. The changes in sensory quality,oxidative stress level,nutrients,and so on were measured every three days.The results showed that after 21 d,each coating treatment group was effective in reducing the respiration rate and weight loss,as well as inhibiting the increase in total phenol and polyphenol oxidase activity to reduce the browning degree. Meanwhile,it maintained the activities of superoxide dismutase and catalase and inhibited the increase in malondialdehyde and relative conductivity. Moreover,it retained higher soluble solids and vitamin C content. Therefore,sodium alginate and?P.?nameko?peptides have a better effect on keeping the storage quality of?L.edodes?and could prolong the shelf life.
keywords: sodium alginate Pholiota nameko peptides Lentinus edodes respiration intensity antioxidant
文章编号:202424006 中图分类号: 文献标志码:
基金项目:甘肃省科技计划项目(23CXNH0009);甘肃省中央引导地方科技发展资金项目(24ZYQH006);天津市大学生创新创业训练项目(202310061181、202310061157);天津市蔬菜现代农业产业技术体系创新团队(ITTVRS2024016)
作者 | 单位 |
钱磊1,2,曾祥2,陈天泰3,萧生慧1,崔钨铗1,张业尼4* | 1.天津农学院农学与资源环境学院,天津 300392;2.天祝藏族自治县天蕈种植专业合作社,甘肃 武威 733299;3.天祝县生产力促进中心,甘肃 武威 733299;4.天津农学院食品 |
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