ISOTOPIC ANALYSIS (δ13C) AND LEGALITY IN GRAPE NECTARS

被引：0
|
作者：
Figueira, Ricardo [1 ]
Parente Nogueira, Andressa Milene [2 ]
Ducatti, Carlos [1 ]
Venturini Filho, Waldemar Gastoni [2 ]
Mischan, Martha Maria [3 ]
机构：
[1] UNESP, Inst Biociencias, Ctr Isotopos Estaveis Ambientais, Botucatu, SP, Brazil
[2] UNESP, Fac Ciencias Agron, Lab Bebidas, Botucatu, SP, Brazil
[3] UNESP, Inst Biociencias, Dept Bioestat, Botucatu, SP, Brazil
来源：
BOLETIM DO CENTRO DE PESQUISA DE PROCESSAMENTO DE ALIMENTOS | 2010年 / 28卷 / 02期
关键词：
GRAPE NECTAR; ADULTERATION; FRUIT BEVERAGE; Vitis ssp; ISOTOPE RATIO MASS SPECTROMETER (IRMS); RATIOS;
D O I：
暂无
中图分类号：
TS2 [食品工业];
学科分类号：
0832 ;
摘要：
The aim of this work was to develop an isotopic analysis method to quantify the carbon of C-3 photosynthesis cycle in grape nectar and to identify the commercial beverages in disagreement to the Brazilian Ministry of Agriculture, Livestock and Food Supply (MAPA) regulation. The nectars were produced in a laboratory, according to the Brazilian Law. Adulterated beverages with quantity of grape juice lower than the legal limit were also produced. Isotopic analysis measured the relative isotopic enrichment of grape nectar and its purified sugar fraction. Based on these results, it was possible to estimated the quantity of source C-3 by means of isotopic dilution equation. To determine the existence of adulteration in commercial nectars, it was necessary to create a legal limit according to the Brazilian Law. One of the twelve commercial brands of nectar analyzed was classified as adulterated. The developed methodology proved to be efficient to quantify the carbon of C-3 origin and identify the adulterated commercial grape nectar.
引用
收藏
页码：233 / 246
页数：14
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