Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/55425
Type: Artigo de periódico
Title: beta-Carotene biotransformation to obtain aroma compounds
Author: Uenojo, M
Pastore, GM
Abstract: Carotenoids are important constituents of food due to their color and because their degradation products generate important volatile compounds in foods. Aroma compounds derived from carotenoids are widely distributed in nature, and they are precursors of many important aromas in foods such as fruits and in flowers as well. They present high aromatic potential and are therefore of great interest to the industries of aromas and fragrances. In this study, more than 300 previously isolated microorganisms with potential for biotransformation of beta-carotene present in the culture medium were selected using the plate method; about 80 strains presented capacity to produce aroma compounds and 7 strains were selected by an untrained panel of tasters to generate aroma compounds. The beta-ionone was the main compound produced by CS1 ( 34.0 mg. L-1) and CF9 ( 42.4 mg. L-1) microorganisms at 72 and 24 hours of fermentation, cultured with and without pre-inoculation, respectively. The beta-damascone and pseudoionone were found in low concentrations, 1,1,6-trimethyl-1,2,3,4-tetrahydronaphthalen (TTN) was tentatively identified and other compounds such as apocarotenoids, apparently obtained from the cleavage of the central part of the carotenoid, were detected.
Subject: carotenoids
biotransformation
beta-carotene
beta-ionone
aroma
Country: Brasil
Editor: Soc Brasileira Ciencia Tecnologia Alimentos
Rights: aberto
Identifier DOI: 10.1590/S0101-20612010000300039
Date Issue: 2010
Appears in Collections:Unicamp - Artigos e Outros Documentos

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