Glucoraphanin, sulforaphane and myrosinase activity in germinating broccoli sprouts as affected by growth temperature and plant organs

The effect of growth temperature on glucoraphanin, sulforaphane and myrosinase activity in germinating broccoli sprouts was firstly evaluated, and then their distributions in the cotyledon, hypocotyl and root at the optimum temperature were investigated. The profiles of isothiocyanates and nitrile i...

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Main Authors: Liping Guo, Runqiang Yang, Zhiying Wang, Qianghui Guo, Zhenxin Gu
Format: Article
Language:English
Published: Elsevier 2014-07-01
Series:Journal of Functional Foods
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S1756464614001480
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author Liping Guo
Runqiang Yang
Zhiying Wang
Qianghui Guo
Zhenxin Gu
author_facet Liping Guo
Runqiang Yang
Zhiying Wang
Qianghui Guo
Zhenxin Gu
author_sort Liping Guo
collection DOAJ
description The effect of growth temperature on glucoraphanin, sulforaphane and myrosinase activity in germinating broccoli sprouts was firstly evaluated, and then their distributions in the cotyledon, hypocotyl and root at the optimum temperature were investigated. The profiles of isothiocyanates and nitrile in seeds, sprouts and different organs were also analyzed. Glucoraphanin content and sulforaphane formation declined with sprouts growth. Myrosinase activity in sprouts, stable for the first 3 days of germination, slowly increased threefold by day 7. The highest levels of glucoraphanin and sulforaphane were recorded in non-germinated seeds. Sprouts grown at 25 °C had higher glucoraphanin content and sulforaphane formation than that grown at 20 and 30 °C. In addition, cotyledon had significantly higher glucoraphanin content and sulforaphane formation than hypocotyl and root. Glucoraphanin and sulforaphane were barely detectable in root, despite its high myrosinase activity. The most abundant hydrolysis product in seeds and sprouts, cotyledon and hypocotyl was sulforaphane.
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spelling doaj.art-9572a9b2c25d4114a9a50366226e84132022-12-21T22:03:03ZengElsevierJournal of Functional Foods1756-46462014-07-0197077Glucoraphanin, sulforaphane and myrosinase activity in germinating broccoli sprouts as affected by growth temperature and plant organsLiping Guo0Runqiang Yang1Zhiying Wang2Qianghui Guo3Zhenxin Gu4College of Food Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China; College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, 266109, ChinaCollege of Food Science and Technology, Nanjing Agricultural University, Nanjing, 210095, ChinaCollege of Food Science and Technology, Nanjing Agricultural University, Nanjing, 210095, ChinaCollege of Food Science and Technology, Nanjing Agricultural University, Nanjing, 210095, ChinaCollege of Food Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China; Corresponding author. Tel.: +86 025 84396293; fax: +86 025 84396293.The effect of growth temperature on glucoraphanin, sulforaphane and myrosinase activity in germinating broccoli sprouts was firstly evaluated, and then their distributions in the cotyledon, hypocotyl and root at the optimum temperature were investigated. The profiles of isothiocyanates and nitrile in seeds, sprouts and different organs were also analyzed. Glucoraphanin content and sulforaphane formation declined with sprouts growth. Myrosinase activity in sprouts, stable for the first 3 days of germination, slowly increased threefold by day 7. The highest levels of glucoraphanin and sulforaphane were recorded in non-germinated seeds. Sprouts grown at 25 °C had higher glucoraphanin content and sulforaphane formation than that grown at 20 and 30 °C. In addition, cotyledon had significantly higher glucoraphanin content and sulforaphane formation than hypocotyl and root. Glucoraphanin and sulforaphane were barely detectable in root, despite its high myrosinase activity. The most abundant hydrolysis product in seeds and sprouts, cotyledon and hypocotyl was sulforaphane.http://www.sciencedirect.com/science/article/pii/S1756464614001480GlucoraphaninSulforaphaneMyrosinaseBroccoli sproutsOrganGermination
spellingShingle Liping Guo
Runqiang Yang
Zhiying Wang
Qianghui Guo
Zhenxin Gu
Glucoraphanin, sulforaphane and myrosinase activity in germinating broccoli sprouts as affected by growth temperature and plant organs
Journal of Functional Foods
Glucoraphanin
Sulforaphane
Myrosinase
Broccoli sprouts
Organ
Germination
title Glucoraphanin, sulforaphane and myrosinase activity in germinating broccoli sprouts as affected by growth temperature and plant organs
title_full Glucoraphanin, sulforaphane and myrosinase activity in germinating broccoli sprouts as affected by growth temperature and plant organs
title_fullStr Glucoraphanin, sulforaphane and myrosinase activity in germinating broccoli sprouts as affected by growth temperature and plant organs
title_full_unstemmed Glucoraphanin, sulforaphane and myrosinase activity in germinating broccoli sprouts as affected by growth temperature and plant organs
title_short Glucoraphanin, sulforaphane and myrosinase activity in germinating broccoli sprouts as affected by growth temperature and plant organs
title_sort glucoraphanin sulforaphane and myrosinase activity in germinating broccoli sprouts as affected by growth temperature and plant organs
topic Glucoraphanin
Sulforaphane
Myrosinase
Broccoli sprouts
Organ
Germination
url http://www.sciencedirect.com/science/article/pii/S1756464614001480
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