Xin-Ke Zhang1,2, Yi-Bin Lan1,2, Bao-Qing Zhu3, Xiao-Feng Xiang1,2, Chang-Qing Duan1,2, Ying Shi1,2. 1. Center for Viticulture and Enology, College of Food Science & Nutritional Engineering, China Agricultural University, Beijing, China. 2. Key Laboratory of Viticulture and Enology, Ministry of Agriculture, Beijing, China. 3. Department of Food Science and Engineering, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China.
Abstract
BACKGROUND: Monosaccharides, organic acids and amino acids are the important flavour-related components in wines. The aim of this article is to develop and validate a method that could simultaneously analyse these compounds in wine based on silylation derivatisation and gas chromatography-mass spectrometry (GC-MS), and apply this method to the investigation of the changes of these compounds and speculate upon their related influences on Cabernet Sauvignon wine flavour during wine ageing. This work presented a new approach for wine analysis and provided more information concerning red wine ageing. RESULTS: This method could simultaneously quantitatively analyse 2 monosaccharides, 8 organic acids and 13 amino acids in wine. A validation experiment showed good linearity, sensitivity, reproducibility and recovery. Multiple derivatives of five amino acids have been found but their effects on quantitative analysis were negligible, except for methionine. The evolution pattern of each category was different, and we speculated that the corresponding mechanisms involving microorganism activities, physical interactions and chemical reactions had a great correlation with red wine flavours during ageing. CONCLUSION: Simultaneously quantitative analysis of monosaccharides, organic acids and amino acids in wine was feasible and reliable and this method has extensive application prospects.
BACKGROUND:Monosaccharides, organic acids and amino acids are the important flavour-related components in wines. The aim of this article is to develop and validate a method that could simultaneously analyse these compounds in wine based on silylation derivatisation and gas chromatography-mass spectrometry (GC-MS), and apply this method to the investigation of the changes of these compounds and speculate upon their related influences on Cabernet Sauvignon wine flavour during wine ageing. This work presented a new approach for wine analysis and provided more information concerning red wine ageing. RESULTS: This method could simultaneously quantitatively analyse 2 monosaccharides, 8 organic acids and 13 amino acids in wine. A validation experiment showed good linearity, sensitivity, reproducibility and recovery. Multiple derivatives of five amino acids have been found but their effects on quantitative analysis were negligible, except for methionine. The evolution pattern of each category was different, and we speculated that the corresponding mechanisms involving microorganism activities, physical interactions and chemical reactions had a great correlation with red wine flavours during ageing. CONCLUSION: Simultaneously quantitative analysis of monosaccharides, organic acids and amino acids in wine was feasible and reliable and this method has extensive application prospects.
Authors: Gemma González-Ortiz; Sophie A Lee; Kirsi Vienola; Kari Raatikainen; German Jurgens; Juha Apajalahti; Michael R Bedford Journal: Anim Nutr Date: 2021-09-22