|Table of Contents|

Influences of Exogenous Zinc Soaking on Seed Germination,Sprout Growth of Soybean and Zinc Accumulation in the Sprouts(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2012年06期
Page:
932-936
Research Field:
Publishing date:

Info

Title:
Influences of Exogenous Zinc Soaking on Seed Germination,Sprout Growth of Soybean and Zinc Accumulation in the Sprouts
Author(s):
XU Na1; 2; ZOU Tao1; PANG Jin-wei1; HU Guang-lin1
1.Key Laboratory of Tropical Biological Resources of Ministry of Education,College of Material Science and Chemical Engineering,Hainan University,Haikou 570228,Hainan;
2.College of Chemistry and Chemical Engineering,Xiamen University,Xiamen 361005,Fujian,China
Keywords:
Soybean sprouts; Zinc; Soaking; Growth; Bioavailability
PACS:
S565.1
DOI:
10.3969/j.issn.1000-9841.2012.06.016
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 ug·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 ug·mL-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 ug·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 ug·mL-1 and 10-30 ug·mL-1.In conclusion,exogenous zinc soaking with zinc sulfate solution of appropriate concentration(10 ug·mL-1)can facilitate the zinc accumulation in soybean sprouts in circumstances where normal seed germination and sprout growth are guaranteed.

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Last Update: 2014-08-19