摘要
采用顶空固相微萃取(HS-SPME)/气-质联用(GC-MS)技术,对高能电子束不同辐照剂量方式处理浓香型白酒的挥发性成分进行了测定与分析。结果表明,经过单圈8 k Gy剂量的辐照处理,白酒挥发性成分由76种增至83种,其中酯类增加4种,相对含量由82.2%降至81.13%,酸类种类不变,相对含量由4.03%增至4.21%,这与其他浓香型白酒熟化过程中变化趋势一致,对其具有催陈效果。保持白酒总的辐照剂量不变,分别降低单圈辐照剂量至4 k Gy、2 k Gy、1 k Gy,白酒的挥发性成分由83种分别降至82、74、52种,相对含量由95.54%分别降至83.89%、75.58%和68.16%,除烃类物质增加外,酯类、酸类、醇类、醛类物质相对含量均显著降低。采用单圈辐照剂量处理的方式有助于浓香型白酒熟化,提升了品质。
The volatile components of strong-flavor Baijiu(Chinese liquor) with different irradiation dose of high-energy electron beam irradiation were determined and analyzed by head space solid-phase micro-extractions(HS-SPME) combined gas chromatography-mass spectrometry(GC-MS). Results showed that the volatile aromatic components of Baijiu increased from 76 to 83 by irradiation of single-circle 8 k Gy dose, Among them, four esters increased, and the relative contents decreased from 82.2% to 81.13%, the acids species remained unchanged, and the relative content increased from4.03% to 4.21%. The results were consistent with the changing trend in the aging process of other strong-flavor Baijiu, and it had aging effect. By keeping the total irradiation dose stable and changing irradiation of single-circle dose to 4 k Gy, 2 k Gy, 1 k Gy, respectively, the volatile aromatic components decreased from 83 to 82, 74, 52, and the relative content of them decreased from 95.54% to 83.89%, 75.58%, 68.16%, respectively. Esters, acids, alcohols and aldehydes were significantly reduced except hydrocarbons increased. The single-circle irradiation treatment was beneficial to the aging and the quality improvement of strong-flavor Baijiu.
作者
张义杰
李磊
潘际林
汪江波
ZHANG Yijie;LI Lei;PAN Jilin;WANG Jiangbo(Hubei Provincial Engineering and Technology Research Center for Food Quality and Safety Test,Hubei Provincial Institute forFood Supervision and Test,Wuhan 430075,China;Wuhan Aibang High Energy Technology Co.,Ltd.,Wuhan 436031,China;College of Food and Biological Engineering,Hubei University of Technology,Wuhan 430068,China)
出处
《中国酿造》
CAS
北大核心
2020年第7期151-155,共5页
China Brewing
基金
国家重点研发计划(2016YFD0400501-03)。
关键词
浓香型白酒
高能电子束
辐照剂量
挥发性成分
催陈
strong-flavor Baijiu
high-power electron beam
irradiation dose
volatile component
aging
