Physiological and Biochemical Metabolism of Germinating Broccoli Seeds and Sprouts
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- 作者：Yingjuan Gu ; Qianghui Guo ; Liang Zhang ; Zhigang Chen ; Yongbin Han ; Zhenxin Gu
- 刊名：Journal of Agricultural and Food Chemistry
- 出版年：2012
- 出版时间：January 11, 2012
- 年：2012
- 卷：60
- 期：1
- 页码：209-213
- 全文大小：237K
- 年卷期：v.60,no.1(January 11, 2012)
- ISSN：1520-5118
文摘
Changes in physiological and biochemical metabolism as well as glucoraphanin and sulforaphane contents of germinating broccoli seeds and sprouts were investigated in this study. Sprout length, root length, and fresh weight increased with germination time. Dry weight varied from 2.5 to 3.0 mg per sprout. A rapid increase in respiratory rate of sprouts occurred between 24 and 36 h of germination and then stayed at a high level. HPLC analysis found that glucoraphanin content increased at the early stage (0鈥?2 h) of germination, decreased to a low value of 3.02 mg/g at 48 h, and then reached the highest value of 6.30 mg/g at 72 h of germination. Sulforaphane content decreased dramatically during the first day of germination, then increased slowly, and reached a high value of 3.38 mg/g at 48 h before declining again.