Research articles
ScienceAsia 46 (2020):ID 602-610 |doi:
10.2306/scienceasia1513-1874.2020.072
Ultraviolet-LED irradiation effectively detoxified
aflatoxin B1 in groundnut oils
Haibo Wanga, Changbao Lib,c,*, Ming Xinb,c, Hock Eng Khoob,d, Zimei Moa, Songyu Zhoua,
Xiangdong Daia, Xiaocong Chena, Yiqing Nonga, Juan-mei Zhenga
ABSTRACT: This study aimed to evaluate the quality of aflatoxin B1-detoxified unrefined groundnut oils. Detoxification
of aflatoxin B1 (AFB1) in unrefined groundnut oils was performed by ultraviolet light-emitting diodes (UV-LED)
irradiation. Ten samples of unrefined groundnut oils were subjected to UV-LED treatment before the measurements of
AFB1 content, fatty acid compositions and chemical properties. The 20-min treatment reduced AFB1 content by 99%.
Both acid and peroxide values of the oil samples showed little changes after the samples were treated with UV-LED
irradiation. GC-MS results showed that 21 types of fatty acid were detected in the untreated oil samples. Minor changes
in the levels of fatty acid were also observed after the 20-min treatment. The results proved that UV-LED irradiation
effectively reduced AFB1 content in the unrefined groundnut oils and maintained the oil quality. It is a promising
strategy for detoxification of AFB1 in groundnut oil.
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| a |
Guangxi-ASEAN Food Inspection and Testing Center, Nanning 530021 China |
| b |
Agro-Food Science and Technology Research Institute, Guangxi Academy of Agricultural Sciences,
Nanning 530007 China |
| c |
Guangxi Key Laboratory of Fruits and Vegetables Storage-processing Technology, Nanning 530007 China |
| d |
Department of Nutrition and Dietetics, Faculty of Medicine and Health Sciences,
Universiti Putra Malaysia, Selangor, Malaysia |
* Corresponding author, E-mail: changbaoli@gxaas.net
Received 17 Feb 2020, Accepted 8 Aug 2020
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