Study on the Synthetic Change of Aroma 2-phenylethanol in'Vidal'Grape and Its Bud Sport
Taking the'Vidal'grape and its bud variant fruit as the test materials,and amino acid analyzer and fluorescence quantitative analysis were used,the dynamic content of phenylalanine,phenylethylamine,phenylacetaldehyde,and 2-phenylethanol in the'Vidal'grape and its bud variant fruit were studied,as well as the dynamic relative expression of AADC enzyme,in order to clarify the synthesis changes the characteristic aroma of 2-phenylethanol in the excellent bud variant of the'Vidal'grape,and the source were provided with raw materials for the production of excellent brewing varieties(series).The results showed that the content of phenylalanine,phenylacetamine,phenylacetaldehyde and 2-phenylethanol of the fruit was changed regularly in'Vidal'grape and bud variant,and the content of phenylalanine,phenacetamine,phenylacetaldehyde and 2-phenylethanol in the'Vidal'grape were higher than bud variant.The fluorescence quantification showed that AADC enzyme expression was positively correlated with 2-phenylethanol content in both'Vidal'and bud variant.The bud variant of'Vidal'was expected to provide an important variety(series)for the production of excellent wine in China.
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