Volume 46, Issue 12 e17146
ORIGINAL ARTICLE

The effects of gamma irradiation and natural aging on the composition of Nongxiangxing baijiu

Jiang He

Jiang He

College of Nuclear Technology and Automation Engineering, Chengdu University of Technology, Chengdu, P.R. China

Sichuan Institute of Atomic Energy, Chengdu, P.R. China

Irradiation Preservation Key Laboratory of Sichuan Province, Chengdu, P.R. China

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Qian Chen

Qian Chen

Sichuan Institute of Atomic Energy, Chengdu, P.R. China

Irradiation Preservation Key Laboratory of Sichuan Province, Chengdu, P.R. China

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Xin Jia

Xin Jia

Irradiation Preservation Key Laboratory of Sichuan Province, Chengdu, P.R. China

College of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, P.R. China

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Yan Wang

Yan Wang

Sichuan Institute of Atomic Energy, Chengdu, P.R. China

Irradiation Preservation Key Laboratory of Sichuan Province, Chengdu, P.R. China

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Min Huang

Min Huang

Sichuan Institute of Atomic Energy, Chengdu, P.R. China

Irradiation Preservation Key Laboratory of Sichuan Province, Chengdu, P.R. China

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GuangXi Wang

GuangXi Wang

College of Nuclear Technology and Automation Engineering, Chengdu University of Technology, Chengdu, P.R. China

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Hao Chen

Hao Chen

Sichuan Institute of Atomic Energy, Chengdu, P.R. China

Irradiation Preservation Key Laboratory of Sichuan Province, Chengdu, P.R. China

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Peng Gao

Corresponding Author

Peng Gao

Sichuan Institute of Atomic Energy, Chengdu, P.R. China

Irradiation Preservation Key Laboratory of Sichuan Province, Chengdu, P.R. China

Correspondence

Peng Gao, Irradiation Preservation Key Laboratory of Sichuan Province, Sichuan Institute of Atomic Energy, Chengdu 610101, P.R. China.

Email: [email protected]

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First published: 12 September 2022
Citations: 13

Abstract

The purpose of this study was to investigate the changes in the composition of Nongxiangxing baijiu (Chinese liquor) over 5 years of natural aging and under different irradiation doses of 60Co. We discuss the differences between the two approaches to aging and provide theoretical support for the feasibility of irradiation aging of baijiu. Low-dose (3 kGy and 6 kGy) and high-dose (50 kGy and 100 kGy) irradiation were used to assess the effect of irradiation on baijiu compounds. The results show that the chemical reaction processes of natural aging and irradiation are similar, and both can promote the production of aldehydes and acids in baijiu, which contribute to the flavor of aging. Specifically, after irradiation at ≥3 kGy, furfural was not detected. The content of ethyl linoleate decreased after irradiation at ≤6 kGy, but it was not detected after irradiation at ≥50 kGy. The electronic nose prediction model showed that the flavor of the baijiu after 3 kGy irradiation reached an effect similar to that of natural aging for 1.98 years. The application of 60Co irradiation in the aging of Nongxiangxing baijiu has significant value.

Novelty impact statement

  1. The chemical reaction processes of natural aging and irradiation are similar, both can promote the production of aldehydes and acids in baijiu.
  2. The flavor of the baijiu after 3 kGy irradiation reached an effect similar to that of natural aging for 1.98 years.
  3. Furfural and ethyl linoleate can be used as potential indicators to determine whether baijiu was irradiated.

DATA AVAILABILITY STATEMENT

The date that support the findings of this study are openly available in [repository name e.g., “figshare”] at http://doi.org/[doi], reference number [reference number].

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.