Author Identifier
Caroline R. Hill: https://orcid.org/0000-0001-9291-3648
Armaghan Shafaei: https://orcid.org/0000-0002-5763-531X
Mary C. Boyce: https://orcid.org/0000-0002-4908-8061
Liezhou Zhong: https://orcid.org/0000-0002-6847-4240
Lois Balmer: https://orcid.org/0000-0001-5618-0555
Joshua R. Lewis: https://orcid.org/0000-0003-1003-8443
Jonathan Hodgson: https://orcid.org/0000-0001-6184-7764
Lauren C. Blekkenhorst: https://orcid.org/0000-0003-1561-9052
Document Type
Journal Article
Publication Title
Journal of Food Composition and Analysis
Volume
138
Publisher
Elsevier
School
Nutrition and Health Innovation Research Institute / School of Medical and Health Sciences / School of Science / Centre for Precision Health
RAS ID
77472
Abstract
Currently no data exists on S-methyl-L-cysteine sulfoxide (SMCSO) levels in Australian-sourced vegetables and limited data exists for glucosinolates. The effect of various cooking methods on the retention of SMCSO and glucosinolates in Australian-sourced vegetables is also limited. This study measured SMCSO and ten glucosinolates in a selection of Australian-sourced Brassica vegetables, both raw and after steaming. We additionally measured SMCSO and glucosinolate levels in broccoli after microwaving, stir-frying and boiling. SMCSO contributed greater dry weight (0.6–1.9 %) than total glucosinolates combined (0.3–1.2 %) in these raw cruciferous vegetables. SMCSO levels from highest to lowest were: Brussels sprouts > broccoli > red cabbage > kale > cauliflower > white cabbage > Chinese cabbage; and glucosinolate levels were: Brussels sprouts > white cabbage > broccoli > kale > red cabbage > Chinese cabbage > cauliflower. Both SMCSO and the ten main glucosinolates quantified were relatively stable after light steaming across all vegetables measured, and after microwaving broccoli. Boiling and stir-frying broccoli led to significant losses in SMCSO and the two dominant glucosinolates, glucoraphanin and glucobrassicin (all p < 0.05). Mild steaming and/or microwaving were preferable in retaining SMCSO and glucosinolates, whilst boiling and stir-frying were least favorable.
DOI
10.1016/j.jfca.2024.107015
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.
Comments
Hill, C. R., Shafaei, A., Boyce, M. C., Zhong, L., Balmer, L., Lewis, J. R., Hodgson, J. M., & Blekkenhorst, L. C. (2025). S-methyl-L-cysteine sulfoxide and glucosinolate levels in Australian-sourced Brassica vegetables before and after domestic cooking. Journal of Food Composition and Analysis, 138. https://doi.org/10.1016/j.jfca.2024.107015