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投稿时间:2023-09-04
投稿时间:2023-09-04
中文摘要: 为研究NO处理对苦瓜果实采后贮藏品质的影响,采用0.25 mmol/L 的外源NO 供体硝普钠(sodium nitroprusside,SNP)溶液对苦瓜进行20 min 浸泡处理,(20±1)℃下贮藏,定期测定苦瓜果实感官品质、硬度、可溶性固形物含量、色差、乙烯释放量、叶绿素含量、总酚含量、类黄酮含量及相关抗氧化酶活性。结果表明:与对照相比,NO 处理可较好地维持苦瓜果实硬度、降低乙烯释放量、减轻叶绿素降解,减少可溶性固形物消耗,有效保持总酚、类黄酮等抗氧化物质的含量,抑制苦瓜中过氧化物酶、过氧化氢酶和抗坏血酸过氧化物酶活性的降低,从而延缓苦瓜果实衰老并保持其贮藏品质。
Abstract:This paper investigated the effect of NO treatment on the postharvest storage quality of bitter melon.Exogenous NO donor,sodium nitroprusside(SNP,0.25 mmol/L)was used to soak the bitter melon for 20 min,which was then stored at(20±1)℃.The sensory quality,hardness,soluble solid content,color difference,ethylene release,chlorophyll content,total phenolic content,flavonoid content,and related antioxidant enzyme activity of bitter melon were regularly measured. The results showed that compared with the control,NO treatment better maintained the hardness,reduced ethylene release,chlorophyll degradation and soluble solid consumption,retained the total phenols,flavonoids and other antioxidant substances,and inhibited the decrease of peroxidase,catalase,and ascorbate peroxidase activities in bitter melon,thereby delaying the senescence of bitter melon and maintaining its storage quality.
文章编号:202404004 中图分类号: 文献标志码:
基金项目:北京市农林科学院协同创新中心建设项目(KJCX201915);北京市农林科学院创新能力建设专项(KJCX20210437)
作者 | 单位 |
王红伟1,2,3,4,张帆2,3,4,马丽丽2,3,4,郑鄢燕2,3,4,左进华2,3,4,王清2,3,4,李玲1* | 1.天津农学院食品科学与生物工程学院,天津 300392;2.北京市农林科学院农产品加工与食品营养研究所,北京 100097;3.果蔬农产品保鲜与加工北京市重点实验室,北京 100097;4.农业农村部蔬菜采后处理重点实验室,北京 100097 |
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