A flavor uniformity evaluation and improvement of Chinese spirit by electronic nose. Issue 3 (11th February 2020)

• Record Type: Journal Article
• Authors: Li, Jing; Li, Zhenfeng; Deng, Xia; Song, Chunfang; Raghavan, Vijaya; Xie, Yufei
• Is Part Of: Food science & nutrition. Volume 8:Issue 3(2020)
• Page Start: 1509
• Page End: 1521
• Publication Date: 2020-02-11
• Subjects: automatic blending -- Chinese spirits -- electronic nose -- flavor chemistry; Food industry and trade -- Periodicals; Food -- Periodicals; Nutrition -- Periodicals; 664
• DOI: 10.1002/fsn3.1436
• Languages: English
• ISSNs: 2048-7177

Abstract

Abstract: Fenjiu spirits are famous for their multifarious flavors in China. Nevertheless, the uniformity and homogeneity of the products are always challenges for the producers. Three flavor measurement methods, that is, zNose™, GC‐MS, and spirit tasters, were employed and correlated for evaluation of Fenjiu flavors' difference. An automatic blending system was designed to improve the uniformity, where base liquors of Dazongjiu, Dajiu, and Daijiu, as well as pure water, were used for blending, and BPNN was employed for regression and error minimization. Results showed that zNose™ results could be correlated with GC‐MS in 95%; hence, zNose™ can replace GC‐MS in Fenjiu flavor measurement. With the zNose™ assistance, an experimental scale, fully automatic blending system could be optimized with different modern mathematical algorithms to improve the Fenjiu products uniformity. We believe that this detailed work will advance the scientific knowledge in the field and help to facilitate the uniformity and homogeneity of Fenjiu products. Abstract : Three flavor measurement methods, that is, GC‐MS, liquor tasters, and zNose, were employed for evaluation of flavors difference between the same Chinese spirit products. zNose was correlated with GC‐MS in 95% and could be a replacement of GC‐MS in Fenjiu flavor measurement. An automatic blending system with the zNose assistance was designed to improve the Fenjiu products uniformity.