近红外在酱香白酒酒醅检测中的应用  

Application of Near-Infrared Spectroscopy in the Detection of Fermented Grains of Jiangxiang Baijiu

作　　者：王秋云 朱建猛 胡胜祥 黄贵燚 祝汉征 WANG Qiuyun;ZHU Jianmeng;HU Shengxiang;HUANG Guiyi;ZHU Hanzheng(Quality Department of Guijiu Co. Ltd., Guiyang, Guizhou 550200, China)

机构地区：[1]贵州贵酒有限责任公司质量部

出　　处：《酿酒科技》2019年第10期91-93,共3页Liquor-Making Science & Technology

摘　　要：采用近红外光谱分析技术对酱香型白酒出入窖酒醅进行扫描,并与该样品手工检测的结果进行对比分析。结果表明,近红外光谱(NIR)主要是由于分子振动的非谐振性使分子振动从基态向高能级跃迁时产生的。近红外光谱记录的是分子中单个化学键的基频振动的倍频和合频信息,它常常受含氢基团X-H(X=C、N、O)的倍频和合频的重叠主导,所以在近红外光谱范围内,测量的主要是含氢基团X-H振动的倍频和合频吸收。近红外能够快速高效完成样品检测,更好的服务和有效的帮助生产。NIRS is mainly produced when the molecular vibration transitions from the ground state to the high energy level due to the non-resonance of molecular vibration. It records the frequency doubling and frequency combination information of the fundamental frequency vibration of a single chemical bond in a molecule. It is often dominated by the overlapping frequency doubling and frequency combination of the hydrogen-containing group X--H (X=C, N, O). Therefore, in the range of NIRS, the frequency doubling and frequency absorption of the hydrogen-containing group X--H vibration is mainly measured. In the experiments, NIRS was adopted to scan the pit- entry/pit- exit fermented grains of Jiangxiang Baijiu. The results of the unknown fermented grains samples scanned by NIRS were compared with the results of the samples by manual detection. The use of NIRS can quickly and efficiently detect samples.

关 键 词：大曲酱香 近红外 酒醅 酱酒工艺 

分 类 号：TS262.3[轻工技术与工程—发酵工程] TS261.7[轻工技术与工程—食品科学与工程]