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Impact of cold storage on glucosinolate levels in seed-sprouts of broccoli, rocket, white radish and kohl-rabi

Force, L.E. and O'Hare, T.J. and Wong, L.S. and Irving, D.E. (2007) Impact of cold storage on glucosinolate levels in seed-sprouts of broccoli, rocket, white radish and kohl-rabi. Postharvest Biology and Technology, 44 (2). pp. 175-178.

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Article Link(s): http://dx.doi.org/10.1016/j.postharvbio.2006.11.01...

Publisher URL: http://www.elsevier.com

Abstract

The effect of cold storage on glucosinolate concentration was examined in 7-day-old seed-sprouts of broccoli, kohl rabi, white radish and rocket. Principal glucosinolates identified were glucoraphanin and glucoerucin (in broccoli, kohl rabi and rocket), glucoiberin (in broccoli and kohl rabi), and glucoraphenin and glucodehydroerucin (in white radish). Generally, sprouts showed no significant changes in individual glucosinolate concentrations during storage at 4°C for 3 weeks. The exception to this was rocket, which showed a significant decline in glucoerucin and glucoraphanin after 1 and 2 weeks, respectively. These preliminary results indicate that as there is no significant loss of glucosinolates in broccoli, radish and kohl rabi sprouts, these sprouts may be stored under domestic refrigeration conditions without significant loss of potential anti-cancer compounds. Rocket sprouts, on the other hand, should be consumed soon after purchase if glucosinolate levels are to be maintained.

Item Type:Article
Additional Information:Author version © Queensland Department of Primary Industries and Fisheries. Reproduced in accordance with the copyright policy of the publisher. © Elsevier Ltd. Access to published version may be available via Publisher’s website.
Keywords:Brassicas; refrigeration; isothiocyanates; cancer.
Subjects:Science > Science (General)
Plant culture > Vegetables
Plant culture > Harvesting, curing, storage
Deposited On:30 Oct 2007
Last Modified:08 Jun 2015 15:50

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