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Carbon isotope analysis in apple nectar beverages Ciênc. Tecnol. Aliment.
Figueira,Ricardo; Venturini Filho,Waldemar Gastoni; Ducatti,Carlos.
The aims of this study were to use the isotope analysis method to quantify the carbon of C3 photosynthetic cycle in commercial apple nectars and to determine the legal limit to identify the beverages that do not conform to the safety standards established by the Brazilian Ministry of Agriculture, Livestock and Food Supply. These beverages (apple nectars) were produced in the laboratory according to the Brazilian legislation. Adulterated nectars were also produced with an amount of pulp juice below the permitted threshold limit value. The δ13C values of the apple nectars and their fractions (pulp and purified sugar) were measured to quantify the C3 source percentage. In order to demonstrate the existence of adulteration, the values found were compared to...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Legislation; Adulteration; IRMS.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612013000100006
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Isotope analysis (δ13C) of pulpy whole apple juice Ciênc. Tecnol. Aliment.
Figueira,Ricardo; Venturini Filho,Waldemar Gastoni; Ducatti,Carlos; Nogueira,Andressa Milene Parente.
The objectives of this study were to develop the method of isotope analysis to quantify the carbon of C3 photosynthetic cycle in pulpy whole apple juice and to measure the legal limits based on Brazilian legislation in order to identify the beverages that do not conform to the Ministry of Agriculture, Livestock and Food Supply (MAPA). This beverage was produced in a laboratory according to the Brazilian law. Pulpy juices adulterated by the addition of sugarcane were also produced. The isotope analyses measured the relative isotope enrichment of the juices, their pulpy fractions (internal standard) and purified sugar. From those results, the quantity of C3 source was estimated by means of the isotope dilution equation. To determine the existence of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Internal standard; Isotope; Carbon; IRMS; Adulteration; Quality.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612011000300017
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