Journal of Radiation Research and Radiation Proces ›› 2018, Vol. 36 ›› Issue (5): 50401-050401.doi: 10.11889/j.1000-3436.2018.rrj.36.050401

• RADIATION TECHNOLOGY APPLICATION • Previous Articles     Next Articles

Electron-beam irradiation aging of Daqu liquor and Xiaoqu liquor

ZHANG Manman1,2, XIE Kangjun1,2, QI Wei1,2, ZHAO Long2   

  1. 1. School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China;
    2. State Key Laboratory of Advance Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
  • Received:2018-06-27 Revised:2018-08-12 Online:2018-10-20 Published:2018-10-29

Abstract:

Common white wines, Daqu (base liquor, new liquor, and aged liquor) and Xiaoqu (malt liquor and buckwheat rice liquor) were irradiated by a 10 MeV electron-beam at absorbed doses of 0 (control), 2, 4, 6, and 8 kGy. The volatile aroma compounds in the liquor were analyzed using gas chromatography and mass spectrometry (GC/MS), and the liquor taste was evaluated through quantitative sensory evaluation. The results showed that the concentrations of alcohols, esters, and alkanes in Daqu liquor changed little after irradiation; the concentrations of acids, and aldehydes increased clearly, especially for new liquor; the ketones in the new liquor basically disappeared after irradiation (≥ 4 Gy) and almost no content was detected in the aged liquor. The aged flavor of Daqu liquor increased after irradiation and was dose-dependent. However, the concentration of volatile components in Xiaoqu liquor showed an irregular change with the absorbed dose, and the overall flavor of Xiaoqu liquor deteriorated. These results indicate that electron-beam irradiation may age Daqu liquor, and the effects of aging Xiaoqu liquor need to be studied further.

Key words: Daqu, Xiaoqu, Liquor, Radiation, Aging

CLC Number: 

  • TL99