果胶污泥的基质化开发及其在育苗中的应用  

Substrate development of pectin sludge and itsapplication in seedling cultivation

作　　者：叶楠 王翘楚 徐世豪 于建兴[1] 洪基光 李加友[1] YE Nan;WANG Qiaochu;XU Shihao;YU Jianxing;HONG Jiguang;LI Jiayou(Jiaxing College,School of Biological and Chemical Engineering,Jiaxing 314001,Zhejiang;Xiangshan Huayu Foodstuffs Co.,Ltd,Ningbo 315700,Zhejiang)

机构地区：[1]嘉兴学院生物与化学工程学院,浙江嘉兴314001 [2]象山华宇食品有限公司,浙江宁波315700

出　　处：《浙江农业科学》2024年第1期103-107,共5页Journal of Zhejiang Agricultural Sciences

基　　金：浙江省自然科学基金公益项目(LGN22C200009);象山县科技计划项目(2021XSX030002);嘉兴学院大学生创新训练项目(CD8517211036)。

摘　　要：柑橘罐头加工产生大量果胶污泥,利用高效菌株的快速腐解将果胶污泥转化成栽培基质,实现高持水难处理果胶污泥的资源化利用。结果表明,筛选的康宁木霉(Trichoderma koningii)LZ51果胶酶活性达684 U·mL^(-1);将果胶污泥分别和秸秆、蛭石混合发酵制得秸秆果胶基质(M1)、蛭石果胶基质(M2),在红樱桃萝卜、大叶菠菜和四季香葱发芽和育苗过程中发现,M1和M2的使用性能较蛭石基质(CK)均有显著提升。其中,M1对3种蔬菜的发芽率较CK平均提升5%;在育苗阶段,M1培育的樱桃红萝卜鲜重较CK增加30%,培育的大叶菠菜鲜重较CK增加50%。利用果胶污泥和秸秆混合发酵制备一种新型栽培基质,为罐头加工的果胶污泥资源化利用开辟一条新的利用途径,市场前景广阔。The processing of citrus canning produces a large amount of pectin sludge,which was converted into a cultivation substrate using the rapid putrefaction of efficient strains to achieve the resourceful utilisation of pectin sludge that is difficult to be treated with high water-holding capacity.The results showed that the pectinase activity of Trichoderma koningii LZ51 reached 684 U·mL^(-1);straw pectin substrate(M1)and vermiculite pectin substrate(M2)were produced by mixing and fermenting pectin sludge with straw and vermiculite,respectively,and it was found that the germination and seedling development of cherry red radish,large-leafed spinach and four-season chive were better than that under vermiculite substrate(CK)culture.both had significantly higher performance than vermiculite substrate(CK).In particular,M1 increased the germination rate of the three vegetables by an average of 5%compared with CK;at the seedling stage,M1 produced a 30%increase in fresh weight of cherry red radish compared with CK,and a 50%increase in the fresh weight of large-leaf spinach compared with CK.The use of pectin sludge and straw mixed fermentation to prepare a new type of cultivation substrate opens up a new utilisation pathway for the resourceful utilisation of pectin sludge from canning processing,which has a promising market prospect.

关 键 词：果胶污泥 基质发酵 果胶降解菌 育苗 

分 类 号：S641.3[农业科学—蔬菜学]