| Title: | Evaluation of the Perceptual Interactions Between Higher Alcohols and Off-Odor Acids in Laimao Baijiu by sigma-tau Plot and Partition Coefficient |
| Author(s): | Niu Y; Zhang J; Xiao Z; Zhu J; |
| Address: | "Department of Perfume and Aroma Technology, Shanghai Institute of Technology, Shanghai 201418, China" |
| ISSN/ISBN: | 1520-5118 (Electronic) 0021-8561 (Linking) |
| Abstract: | "The volatile compounds in three Laimao baijius ('Chuanchenglan, CCL', 'Hongyu, HY', and 'Zhencang, ZC') were comprehensively analyzed by gas chromatography-olfactometry and gas chromatography-mass spectrometry. The results demonstrated that 44, 42, and 42 compounds with flavor dilution factors >/= 16 and odor activity values >/= 1 were, respectively, identified as important odorants. Additionally, the perceptual interactions of 6 higher alcohols and 3 off-odor acids were evaluated by sigma-tau plot, and the partition coefficient was calculated to explain the release of odorants in the matrix. The interactions indicated that adding a high concentration of 1-propanol or 2-phenylethanol to the matrix could mask the sweaty note of 3-methylbutyric acid. The partition coefficients explained that high concentrations of 1-propanol and 2-phenylethanol were able to significantly inhibit the release of 3-methylbutyric acid when the phase ratio was relatively large, and the effect of 1-propanol on it was higher than that of 2-phenylethanol" |
| Keywords: | Acids/*chemistry Adult Alcohols/*chemistry Female Flavoring Agents/*chemistry Gas Chromatography-Mass Spectrometry Humans Male Odorants/*analysis Olfactometry Taste Volatile Organic Compounds/chemistry Wine/*analysis Laimao baijiu partition coefficient pe; |
| Notes: | "MedlineNiu, Yunwei Zhang, Jun Xiao, Zuobing Zhu, Jiancai eng 2020/12/05 J Agric Food Chem. 2020 Dec 16; 68(50):14938-14949. doi: 10.1021/acs.jafc.0c05676. Epub 2020 Dec 3" |
