Effects of Roasting Temperature on Anti-Nutritional Factors and Antioxidant Property of Adzuki Bean (Vigna angularis) Flour

Authors

  • Linh Tran Khanh Vu Ho Chi Minh City University of Technology and Education, Vietnam https://orcid.org/0000-0002-5029-4866
  • Nguyet Thi Minh Nguyen Ho Chi Minh City University of Technology and Education, Vietnam
  • Nhu Thi Huynh Tran Ho Chi Minh City University of Technology and Education, Vietnam
  • Anh Hoang Nguyen Vo Ho Chi Minh City University of Technology and Education, Vietnam

Corressponding author's email:

linhvtk@hcmute.edu.vn

DOI:

https://doi.org/10.54644/jte.80.2023.1494

Keywords:

Vigna angularis, Tannin, Trypsin inhibitor, Anthocyanin, Antioxidant capacity

Abstract

Roasting process could be used to reduce the anti-nutritional factors (ANFs) of adzuki bean (Vigna angularis). In this research, adzuki beans were roasted for 20 min at different temperatures of 150 oC (R150), 165 oC (R165) and 180 oC (R180). The effects of roasting temperature on ANFs and antioxidant activity of resultant adzuki bean flour were investigated. Results indicate that roasting resulted in significant decreases in antinutrients including tannins (30 – 37%), and antitrypsin inhibitors (63 – 70%). Additionally, the reduction in trypsin inhibitors was proportional to the increase in roasting temperature. However, this trend was not observed in the reduction of tannins. Roasting also caused the loss of about 10 – 20% anthocyanin content, and hence the resultant antioxidant capacity of roasted samples also decreased as compared to that of raw bean flour. The results also imply that with low levels of ANFs and relatively high anthocyanin content, roasted adzuki bean flour could be potentially used in combination with or as substitutes for cereal flour in the preparation of bakery products.

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Author Biographies

Linh Tran Khanh Vu, Ho Chi Minh City University of Technology and Education, Vietnam

Vu Tran Khanh Linh received the BEng degree in Food technology (2006) and the MEng degree in Food and Beverage Technology (2008) from Ho Chi Minh City, University of Technology, Vietnam National University, Vietnam; the PhD degree in Chemical and Biomolecular Engineering (2014) at National University of Singapore, Singapore. She is currently a lecturer at the Department of Food Technology, Faculty of Chemical and Food Technology, Ho Chi Minh City University of Technology and Education, Ho Chi Minh City, Vietnam. Her research interest focuses on food biochemistry, bakery and confectionery production, and characterization of bioactive compounds extracted from plants. Tel: 0966 955 469. Email: linhvtk@hcmute.edu.vn. ORCID:  https://orcid.org/0000-0002-5029-4866

Nguyet Thi Minh Nguyen, Ho Chi Minh City University of Technology and Education, Vietnam

Nguyen Thi Minh Nguyet received the MEng in Food technology from Ho Chi Minh City University of Technology and Education in 2020. From 09/2020 till now, she has been being a lecturer in Dong An Polytechnic, Binh Duong city, Vietnam. Her research interest includes food processing; confection; application of healthy ingredients to food processing. Email: nguyetntm1212@gmail.com. Tel: 0966 856 788.

Nhu Thi Huynh Tran, Ho Chi Minh City University of Technology and Education, Vietnam

Tran Thi Huynh Nhu received the BEng degree in Food technology from Ho Chi Minh University of Technology and Education in 2019. From 2020 till now, she has been working for OFI Olam Vietnam. Her research focuses on quality control for edible nuts. Email: trhuynhnhu0112@gmail.com. Tel: 0328560097.

Anh Hoang Nguyen Vo, Ho Chi Minh City University of Technology and Education, Vietnam

Vo Hoang Nguyen Anh received the BEng degree in Food technology from Ho Chi Minh City University of Technology and Education in 2020. From 10/2021 till now she has been being a merchandiser of Milk category at GS25 Viet Nam LLC. Email: vohoangnguyenanh2@gmail.com.vn. Tel: 0937 957 271

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Published

28-12-2023

How to Cite

[1]
L. T. K. Vu, N. T. M. Nguyen, N. T. H. Tran, and A. H. N. Vo, “Effects of Roasting Temperature on Anti-Nutritional Factors and Antioxidant Property of Adzuki Bean (Vigna angularis) Flour”, JTE, vol. 18, no. 6, pp. 70–76, Dec. 2023.

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Research Article