大豆科学2012，Vol.31Issue(6)：932-936,5.
外源锌浸种对大豆种子萌发、大豆芽生长及锌积累的影响
Influences of Exogenous Zinc Soaking on Seed Germination, Sprout Growth of Soybean and Zinc Accumulation in the Sprouts
摘要
Abstract
The objective of current research was to ascertain the influences of exogenous zinc(Zn2 + ) soaking on cultivating zinc-enriched soybean sprouts. Soybean seeds were soaked for 8 h in zinc sulfate solutions containing different concentration of zinc(0,10,20,30,40,50,60,80,100 μg·mL-1 ) and then cultivated for 5 days with deionized water for the preparation of sprouts. The water absorption rate and germination rate of seeds,and the length,fresh weight,water content,biological yield and zinc accumulation of soybean sprouts were determined. Meanwhile, the bioaccessibility of zinc from soybean sprouts was also evaluated using an in vitro digestion/dialysis method. The obtained results showed that exogenous zinc soaking with 10-100 ugomL-1 Zn solutions could improve the water absorption rate of soybean seeds, but there was no obvious effect on the growth of soybean sprouts. Soybean seed germination was inhibited obviously (P <0.05) when CZn2+ in soaking solution was great than or equal to 30 ng·mL-1，Zinc contents in edible or inedible part of sprouts increased significantly (P <0.05) with zinc concentration of soaking solutions. The content and bioaccessibility of zinc from inedible part of sprouts were higher than those from edible part. The bioaccessibility of zinc from edible and inedible part exceeded greatly over those of CK( P <0.05) with the concentration of soaking solutions for edible and inedible part respectively at 10 μg·mL-1 and 10-30 (μg·mL-1. In conclusion, exogenous zinc soaking with zinc sulfate solution of appropriate concentration (10 μg·mL-1 )can facilitate the zinc accumulation in soybean sprouts in circumstances where normal seed germination and sprout growth are guaranteed.关键词
大豆芽/锌/浸种/生长/生物利用性Key words
Soybean sprouts/Zinc/Soaking/Growth/Bioavailabilitv分类
农业科技引用本文复制引用
徐娜,邹涛,庞锦伟,胡广林..外源锌浸种对大豆种子萌发、大豆芽生长及锌积累的影响[J].大豆科学,2012,31(6):932-936,5.基金项目
海南省自然科学基金资助项目(212021). （212021）
