Assessment of the Volatile Composition of Juices of Apricot, Peach, and Pear According to Two Pectolytic Treatments
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- 作者：Montserrat Riu-Aumatell ; Elvira Ló ; pez-Tamames ; and Susana Buxaderas
- 刊名：Journal of Agricultural and Food Chemistry
- 出版年：2005
- 出版时间：October 5, 2005
- 年：2005
- 卷：53
- 期：20
- 页码：7837 - 7843
- 全文大小：83K
- 年卷期：v.53,no.20(October 5, 2005)
- ISSN：1520-5118
文摘
The behavior of volatile compounds according to two enzymatic treatments applied during themanufacture of fruit juice is described. More than 80 compounds were detected of a wide range ofchemical families (alcohols, aldehydes, ketones, terpenoids, esters, norisoprenoids, ...). Theaspiraneand 
-isophoron were tentatively identified for the first time in apricot and peach fruits. The enzymesused, for extraction or clarification of fruit juices, modified the polysaccharides separated by molecularweight and the content of soluble polysaccharides. This could indicate differences in the fruit juicematrix, which could be related to observed changes in the volatile profile. In apricot, the enzymesenhanced the juice in terpenes and norisoprenoids as varietal compounds. In peach and pear, theenzymes used did not favor the amount of lactones and decadienoate esters, the character impactcompounds, respectively.Keywords: Volatile compounds; polysaccharides by Mw; pectolytic enzymes; SPME; GPC
-isophoron were tentatively identified for the first time in apricot and peach fruits. The enzymesused, for extraction or clarification of fruit juices, modified the polysaccharides separated by molecularweight and the content of soluble polysaccharides. This could indicate differences in the fruit juicematrix, which could be related to observed changes in the volatile profile. In apricot, the enzymesenhanced the juice in terpenes and norisoprenoids as varietal compounds. In peach and pear, theenzymes used did not favor the amount of lactones and decadienoate esters, the character impactcompounds, respectively.Keywords: Volatile compounds; polysaccharides by Mw; pectolytic enzymes; SPME; GPC