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      Análise tecnológica, nutricional e sensorial de macarrão elaborado com farinha de trigo adicionada de farinha de feijão-guandu Translated title: Technological, nutritional and sensorial analysis of macaroni elaborated with wheat and pigeon pea flours

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          Abstract

          Foram produzidos macarrões tipo "padre nosso" utilizando farinha de trigo complementada com farinha de feijão-guandu nas proporções de 5, 10 e 15%. Os macarrões obtidos nos ensaios foram submetidos à avaliação através das determinações de umidade, acidez, teste de cozimento e análise sensorial. Foram desenvolvidos ensaios biológicos com ratos albinos para a avaliação da qualidade protéica das misturas empregadas na formulação do macarrão. Os valores encontrados, para os diferentes macarrões, para a umidade e acidez podem ser considerados normais e dentro da faixa de aceitação. Os dados obtidos nos testes de cozimento indicam que os macarrões testados são de qualidade média baixa. A análise biológica revelou que a melhor suplementação de aminoácidos ocorreu com a mistura contendo 5% farinha de feijão-guandu.

          Translated abstract

          Elbow type macaroni was produced with wheat flour and supplemented with pigeon pea bean flour in the ratios of 5, 10, and 15%. The macaroni obtained was evaluated through humidity and acidity determinations, cooking test and sensorial analysis. Biological assays with albino rats were developed to evaluate the protein quality of the mixtures used in the macaroni formulation. The values found for different macaroni as to humidity and acidity can be considered normal and within an acceptable range. The data found in the cooking test indicated that the tested macaroni had regular-low quality. The biological analysis revealed that the mixture containing 5% of pigeon pea flour was the best amino acid supplement.

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          Curso de Estatística experimental

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            Cytotoxicity and genotoxicity of lipid-oxidation products.

            The autoxidation of unsaturated lipids contained in oils, fats, and food and the endogenous oxidative degradation of membrane lipids by lipid peroxidation result in the formation of a very complex mixture of lipid hydroperoxides, chain-cleavage products, and polymeric material. Experimental animal studies and biochemical investigations lend support to the hypothesis that lipid-oxidation products, ingested with food or produced endogenously, represent a health risk. The oral toxicity of oxidized lipids is unexpectedly low. Chronic uptake of large amounts of such materials increases tumor frequency and incidence of atherosclerosis in animals. 4-Hydroxynonenal, a chain-cleavage product resulting from omega 6 fatty acids, disturbs gap-junction communications in cultured endothelial cells and induces several genotoxic effects in hepatocytes and lymphocytes. Although the concentrations of the aldehyde needed to produce these effects are in the range expected to occur in vivo, their pathological significance is far from clear. Recent findings strongly suggest that in vivo modification of low-density lipoprotein by certain lipid-peroxidation products (eg, 4-hydroxynonenal and malonaldehyde) renders this lipoprotein more atherogenic and causes foam-cell formation. Proteins modified by 4-hydroxynonenal and malonaldehyde were detected by immunological techniques in atherosclerotic lesions.
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              Official methods of analysis of the AOAC

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                rn
                Revista de Nutrição
                Rev. Nutr.
                Pontifícia Universidade Católica de Campinas (Campinas )
                1678-9865
                August 1999
                : 12
                : 2
                : 137-143
                Affiliations
                [1 ] Universidade de São Paulo Brazil
                [2 ] Universidade de São Paulo Brazil
                [3 ] Universidade de São Paulo Brazil
                [4 ] Instituto de Tecnologia de Alimentos
                [5 ] EMBRAPA
                Article
                S1415-52731999000200003
                10.1590/S1415-52731999000200003
                60919a1d-0f57-4da1-95b1-7baa773b11a1

                http://creativecommons.org/licenses/by/4.0/

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                Product

                SciELO Brazil

                Self URI (journal page): http://www.scielo.br/scielo.php?script=sci_serial&pid=1415-5273&lng=en
                Categories
                NUTRITION & DIETETICS

                Nutrition & Dietetics
                flour wheat,pigeon pea,food quality,protein quality,sensorial analysis,farinha de trigo,feijão guandu,qualidade dos alimentos,valor protéico,análise sensorial

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