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为探讨中草药提取物与淀粉复合膜对晚大新高梨贮藏效果的影响,采用菌丝生长速率法探讨中草药提取物对引起梨轮纹病和梨黑星病两种贮藏病害病原菌的抑制作用,并探讨中草药提取液与淀粉复合膜对晚大新高梨贮藏效果的影响。结果表明:中草药以虎杖、黄苓和苦参等3种抑菌材料为原料的提取混合液对引起采后梨常见的贮藏病害梨轮纹病和梨黑星病害有一定抑制作用,而且随着提取液浓度的增加,抑制作用越强。中草药提取液和淀粉复合膜涂膜处理能延长晚大新高梨的贮藏寿命,使果实内呼吸强度、硬度和Vc含量变化明显低于对照组,延缓果实的物质消耗,减少果实与贮藏环境的物质交换,由于中草药中活性成分的作用抑制病原菌生长,减少果实腐烂;膜的特性及其对果实酶的诱导作用,有效抑制果实的呼吸强度,提高SOD活性,从而达到保鲜目的。
In order to explore the effect of Chinese herbal medicine extract and starch composite membrane on the storage of late-dao xinao pear, the mycelial growth rate method was used to investigate the inhibitory effect of Chinese herbal medicine extract on the pathogen causing pear rot and pear scab. Effect of Chinese Herbal Medicine Extract and Starch Membrane on the Storage of Latex. The results showed that the extracts of Chinese herbal medicine with three antibacterial materials as Polygonum Cuspidatum, Radix et Rhizoma Rhei and Sophora flavescens could inhibit the occurrence of perennial pear blight and pear scab in postharvest pear, Increasing the concentration of extract, inhibition stronger. Chinese herbal medicine extract and starch composite membrane coating can prolong the storage life of late-daogao pear, the changes of respiration intensity, hardness and Vc content in fruit are obviously lower than those in control group, delay fruit material consumption and reduce fruit and storage environment substances Exchange, due to the role of the active ingredient in Chinese herbal medicine to inhibit the growth of pathogens and reduce fruit decay; membrane properties and its induction of fruit enzymes, effectively inhibit fruit respiratory intensity and improve SOD activity, so as to achieve the purpose of preservation.