银杏种核采后处理对氰化物含量的影响  

Effects of Post-harvest Treatment on Cyanide Content in the Seed Stone of Ginkgo biloba L.

作　　者：李卫星[1] 陈鹏[1] 张秀萍[1] 于建友[1] 甄珍[1] 徐小勇[1] 

机构地区：[1]扬州大学园艺与植物保护学院,江苏扬州225009

出　　处：《江苏农业学报》2009年第6期1374-1377,共4页Jiangsu Journal of Agricultural Sciences

基　　金：江苏省科技攻关项目(E2003331);扬州大学高层次人才科研启动基金项目(2008-26)

摘　　要：以银杏核用主栽品种佛指和洞庭皇为试材,对采收的种核进行CaCl_2溶液浸泡、^(60)Co辐照处理后,贮藏于室内,期间每隔20 d测定种核氰化物的含量和种胚的长度变化。结果表明:银杏种核内氰化物含量随着贮藏时间的延长而上升,在148 d左右后逐渐下降,其最低值比贮藏前高出35%～55%;CaCl_2溶液浸泡和^(60)Co辐照均能明显降低种核氰化物的含量,且品种间存在一定差异;银杏种核氰化物含量与种胚的长度呈极显著相关。Buddha-finger and Dongtinghuang, two important seed-purpose cultivars of Ginkgo biloba L. , were selected as experimental materials for post-harvest treatment. The seed stones were immersed in CaCl2 solution,and subsequently exposed to 60Co radiation. During the following period of storage, the content of cyanide in seed stones and the length of the seed embryo were measured every 20 d. The results showed that the cyanide content in seed stones of Ginkgo biloba L. increased as the storage time extended, and after about 148 d, began to decrease gradually. The minimum cyanide content of treated seed stones increased by 35% -55% as compared to that of the seed stones before storage,which indicated that the immersion in CaC12 solution and the exposure to 60Co radiation can markedly reduce cyanide content in seed stones,with some difference between the two cultivars. The cyanide content was significantly related to the length of embryo in the seed stones.

关 键 词：银杏 种核 采后处理 种胚 氰化物 

分 类 号：S664.301[农业科学—果树学]