不同保鲜剂处理对采后鱼腥草生理指标的影响

为了延长鱼腥草的贮藏期,扩大销售半径,以贵州鱼腥草为试材,研究了不同保鲜剂处理采后鱼腥草在泡沫箱加冰控温贮藏期间的营养品质和生理变化。结果表明,0.8%氯化钙、0.005%赤霉素、0.2%半胱氨酸复合能够显著保持鱼腥草的营养品质,延缓还原糖、总糖含量的降低,失重率的上升;同时抑制多酚氧化酶、过氧化物酶、纤维素酶、果胶酶、超氧化物酶活性的上升,使鱼腥草贮藏30d后仍具有较好的商品价值。

Effect of Preservative on Physiological Changes of Houttuynia cordata Thunb

In order to extend the storage period and sales radius of Houttuynia cordata thunb,nutritional quality and physiological changes of it during storage were investigated after treatment of different preservative and in foam box controled temperature with ices.The results showed that compound preservative made up of 0.8% CaCl2,0.005% gibberellin,0.2% cysteine significantly keep the nutritional quality of Houttuynia cordata thunb and delay the reduce of reduceing sugar and total sugar and the weight loss rate rise.The compound preservative aboved inhibit the activity of polyphenol oxidase,peroxidase,pectinase,cellulase and superoxide dismutase.Houttuynia cordata thunb after storing 30 days had good commercial value.