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Gamma irradiation of in-shell and blanched peanuts protects against mycotoxic fungi and retains their nutraceutical components during long-term storage.
De Camargo, Adriano Costa; De Souza Vieira, Thais Maria Ferreira; Regitano-d'Arce, Marisa Aparecida Bismara; Alencar, Severino Matias de; Calori-Domingues, Maria Antonia; Fillet Spoto, Marta Helena; Canniatti-Brazaca, Solange Guidolin.
Afiliação
  • De Camargo AC; Department of Agri-Food Industry, Food & Nutrition, "Luiz de Queiroz" College of Agriculture (ESALQ/USP), University of São Paulo, Av. Pádua Dias 11, P.O. Box 9, CEP, Piracicaba 13418-900, Brazil.
  • De Souza Vieira TMF; Department of Agri-Food Industry, Food & Nutrition, "Luiz de Queiroz" College of Agriculture (ESALQ/USP), University of São Paulo, Av. Pádua Dias 11, P.O. Box 9, CEP, Piracicaba 13418-900, Brazil.
  • Regitano-d'Arce MAB; Department of Agri-Food Industry, Food & Nutrition, "Luiz de Queiroz" College of Agriculture (ESALQ/USP), University of São Paulo, Av. Pádua Dias 11, P.O. Box 9, CEP, Piracicaba 13418-900, Brazil.
  • Alencar SM; Department of Agri-Food Industry, Food & Nutrition, "Luiz de Queiroz" College of Agriculture (ESALQ/USP), University of São Paulo, Av. Pádua Dias 11, P.O. Box 9, CEP, Piracicaba 13418-900, Brazil.
  • Calori-Domingues MA; Department of Agri-Food Industry, Food & Nutrition, "Luiz de Queiroz" College of Agriculture (ESALQ/USP), University of São Paulo, Av. Pádua Dias 11, P.O. Box 9, CEP, Piracicaba 13418-900, Brazil.
  • Fillet Spoto MH; Department of Agri-Food Industry, Food & Nutrition, "Luiz de Queiroz" College of Agriculture (ESALQ/USP), University of São Paulo, Av. Pádua Dias 11, P.O. Box 9, CEP, Piracicaba 13418-900, Brazil.
  • Canniatti-Brazaca SG; Department of Agri-Food Industry, Food & Nutrition, "Luiz de Queiroz" College of Agriculture (ESALQ/USP), University of São Paulo, Av. Pádua Dias 11, P.O. Box 9, CEP, Piracicaba 13418-900, Brazil.
Int J Mol Sci ; 13(9): 10935-10958, 2012.
Article em En | MEDLINE | ID: mdl-23109830
Peanut samples were irradiated (0.0, 5.2, 7.2 or 10.0 kGy), stored for a year (room temperature) and examined every three months. Mycotoxic fungi (MF) were detected in non-irradiated blanched peanuts. A dose of 5.2 kGy was found suitable to prevent MF growth in blanched samples. No MF was detected in in-shell peanuts, with or without irradiation. The colors of the control in-shell and blanched samples were, respectively, 44.72 and 60.21 (L *); 25.20 and 20.38 (Chroma); 53.05 and 86.46 (°Hue). The water activities (Aw) were 0.673 and 0.425. The corresponding fatty acids were 13.33% and 12.14% (C16:0), 44.94% and 44.92% (C18:1, ω9) and 37.10% and 37.63% (C18:2, ω6). The total phenolics (TP) were 4.62 and 2.52 mg GAE/g, with antioxidant activities (AA) of 16.97 and 10.36 µmol TEAC/g. Storage time negatively correlated with Aw (in-shell peanuts) or L *, linoleic acid, TP and AA (in-shell and blanched peanuts) but positively correlated with Aw (blanched peanuts), and with oleic acid (in-shell and blanched peanuts). Irradiation positively correlated with antioxidant activity (blanched peanuts). No correlation was found between irradiation and AA (in-shell samples) or fatty acids and TP (in-shell and blanched peanuts). Irradiation protected against MF and retained both the polyunsaturated fatty acids and polyphenols in the samples.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Arachis / Irradiação de Alimentos / Fungos Idioma: En Revista: Int J Mol Sci Ano de publicação: 2012 Tipo de documento: Article País de afiliação: Brasil País de publicação: Suíça
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Arachis / Irradiação de Alimentos / Fungos Idioma: En Revista: Int J Mol Sci Ano de publicação: 2012 Tipo de documento: Article País de afiliação: Brasil País de publicação: Suíça