Effect of NaCl treatments on glucosinolate metabolism in broccoli sprouts
To understand the regulation mechanism of NaCI on glucosinolate metabolism in broccoli sprouts, the germination rate, fresh weight, contents of glucosinolates and sulforaphane, as well as myrosinase activity of broccoli sprouts germinated under 0, 20, 40, 60, 80, and 100 mmol/L of NaCI were investig...
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Published in | Journal of Zhejiang University. B. Science Vol. 14; no. 2; pp. 124 - 131 |
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Main Authors | , , |
Format | Journal Article |
Language | English |
Published |
Heidelberg
SP Zhejiang University Press
01.02.2013
Springer Nature B.V Zhejiang University Press |
Subjects | |
Online Access | Get full text |
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Summary: | To understand the regulation mechanism of NaCI on glucosinolate metabolism in broccoli sprouts, the germination rate, fresh weight, contents of glucosinolates and sulforaphane, as well as myrosinase activity of broccoli sprouts germinated under 0, 20, 40, 60, 80, and 100 mmol/L of NaCI were investigated in our experiment. The results showed that glucoerucin, glucobrassicin, and 4-hydroxy glucobrassicin in 7-d-old broccoli sprouts were significantly enhanced and the activity of myrosinase was inhibited by 100 mmol/L of NaCI. However, the total glucosinolate content in 7-d-old broccoli sprouts was markedly decreased although the fresh weight was significantly increased after treatment with NaCI at relatively low concentrations (20, 40, and 60 mmol/L). NaCI treatment at the concentration of 60 mmol/L for 5 d maintained higher biomass and comparatively higher content of glucosinolates in sprouts of broccoli with decreased myrosinase activity. A relatively high level of NaCI treatment (100 mmol/L) significantly increased the content of sulforaphane in 7-d-old broccoli sprouts compared with the control. These results indicate that broccoli sprouts grown under a suitable concentration of NaCI could be desirable for human nutrition. |
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Bibliography: | To understand the regulation mechanism of NaCI on glucosinolate metabolism in broccoli sprouts, the germination rate, fresh weight, contents of glucosinolates and sulforaphane, as well as myrosinase activity of broccoli sprouts germinated under 0, 20, 40, 60, 80, and 100 mmol/L of NaCI were investigated in our experiment. The results showed that glucoerucin, glucobrassicin, and 4-hydroxy glucobrassicin in 7-d-old broccoli sprouts were significantly enhanced and the activity of myrosinase was inhibited by 100 mmol/L of NaCI. However, the total glucosinolate content in 7-d-old broccoli sprouts was markedly decreased although the fresh weight was significantly increased after treatment with NaCI at relatively low concentrations (20, 40, and 60 mmol/L). NaCI treatment at the concentration of 60 mmol/L for 5 d maintained higher biomass and comparatively higher content of glucosinolates in sprouts of broccoli with decreased myrosinase activity. A relatively high level of NaCI treatment (100 mmol/L) significantly increased the content of sulforaphane in 7-d-old broccoli sprouts compared with the control. These results indicate that broccoli sprouts grown under a suitable concentration of NaCI could be desirable for human nutrition. Glucosinolates, Brassica oleracea, Sulforaphane, Myrosinase, NaCI 33-1356/Q ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 14 ObjectType-Article-1 ObjectType-Feature-2 content type line 23 Corresponding Author |
ISSN: | 1673-1581 1862-1783 1862-1783 |
DOI: | 10.1631/jzus.B1200096 |