Title |
Change in organosulfur compounds in onion (Allium cepa L.) during heat treatment
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Published in |
Food Science and Biotechnology, February 2016
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DOI | 10.1007/s10068-016-0017-7 |
Pubmed ID | |
Authors |
Sunyoung Kim, Sanghee Lee, Dongbin Shin, Miyoung Yoo |
Abstract |
Changes in contents of the S-alk(en)yl-L-cysteine sulfoxides (ACSOs) methiin, isoalliin, propiin, and cycloalliin in onions after boiling, frying, steaming, and microwaving were investigated using Liquid Chromatography Electrospray Ionization-Tandem Mass Spectrometry (LC/ESI-MS/MS). ACSOs contents increased by 34.2-568.0% during frying, steaming and microwaving, whereas ACSOs contents decreased by 32.6-69.4% during boiling. The methiin level in heat-treated onions ranged from 0.18 to 0.47 g/100 g of dry weight (DW), and the cycloalliin concentration in heat-treated onions ranged from 0.31 to 3.50 g/100 g of DW. The amount of isoalliin in processed onions was 0.34-3.32 g/100 g of DW, and propiin was 0.15-1.67 g/100 g of DW. Changes in the ACSO concentrations were dependent on the cooking method. The quality of heat processed onions was evaluated. |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
Unknown | 67 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Researcher | 11 | 16% |
Student > Ph. D. Student | 5 | 7% |
Student > Master | 4 | 6% |
Student > Doctoral Student | 3 | 4% |
Student > Bachelor | 3 | 4% |
Other | 8 | 12% |
Unknown | 33 | 49% |
Readers by discipline | Count | As % |
---|---|---|
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Chemistry | 4 | 6% |
Engineering | 2 | 3% |
Biochemistry, Genetics and Molecular Biology | 2 | 3% |
Nursing and Health Professions | 1 | 1% |
Other | 3 | 4% |
Unknown | 38 | 57% |