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Type: Artigo de periódico
Title: Stable carbon isotopic composition of Brazilian beers-A comparison between large- and small-scale breweries
Author: Mardegan, SF
Andrade, TMB
Neto, ERD
Vasconcellos, EBD
Martins, LFB
Mendonca, TC
Martinelli, LA
Abstract: The carbon stable isotope ratio (delta C-13) has become an important tool to determine the composition and quality of various beverages, indicating the amount of C-3- and C-4-sources used in brewing. Accordingly, we assessed the isotopic composition of beers produced in Brazil and abroad, in order to quantify the use of C-4-sources as adjuncts. We also related the presence of such adjuncts to beer price, and compared the current results to similar studies, in order to assess any differences regarding beer composition over time. The mean delta C-13 value for Brazilian beers was around -22.0 parts per thousand, indicating a high addition of C-4-adjuncts during the brewing process. A dichotomy of beer isotopic signatures was observed: beers from large breweries had higher delta C-13 values (around -20.0 parts per thousand) than beer from artisanal breweries (-25.0 parts per thousand). Beer price per L was directly related to delta C-13 values in Brazil and abroad. This significant relationship, in addition to the C-13-enrichment observed in this study, may reflect a change in the Brazilian beer market, in which a greater variety of beverages are produced and marketed following traditional recipes regarding their purity. (C) 2012 Elsevier Inc. All rights reserved.
Subject: Adjuncts
Artisanal beverage production
Beer market
Carbon stable isotopes
C-3- and C-4-sources
Food analysis
Food composition
Food regulatory issues
Country: EUA
Editor: Academic Press Inc Elsevier Science
Rights: fechado
Identifier DOI: 10.1016/j.jfca.2012.10.004
Date Issue: 2013
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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