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Evaluation of antioxidant potential of Brazilian rice cultivars Ciênc. Tecnol. Aliment.
Palombini,Sylvio Vicentin; Maruyama,Swami Arêa; Claus,Thiago; Carbonera,Fabiana; Souza,Nilson Evelázio de; Visentainer,Jesuí Vergílio; Gomes,Sandra Teresinha Marques; Matsushita,Makoto.
This study quantified the fatty acids and evaluated the proximate composition, antioxidant activity (using the Quencher procedure), and total phenolic compound concentrations in Brazilian rice cultivars. The cultivars studied showed high amounts of unsaturated fatty acids, such as linoleic and oleic acid. The ratios of polyunsaturated and saturated fatty acids obtained were high. Regarding the antioxidant activity, the best results were found using the ABTS method and the worst in the DPPH assay. The results of the DPPH and FRAP assays showed the highest correlation. The antioxidant capacity results obtained were also much higher than those reported for other varieties worldwide. Therefore, the Quencher procedure is highly suitable for application in...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Brazilian rice; Antioxidant assays; Quencher procedure.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612013000400015
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Evaluation of nutritional compounds in new amaranth and quinoa cultivars Ciênc. Tecnol. Aliment.
Palombini,Sylvio Vicentin; Claus,Thiago; Maruyama,Swami Arêa; Gohara,Aline Kirie; Souza,Aloisio Henrique Pereira; Souza,Nilson Evelázio de; Visentainer,Jesuí Vergílio; Gomes,Sandra Terezinha Marques; Matsushita,Makoto.
This study evaluated the fatty acid quantification, proximate and amino acid compositions, antioxidant activity, total phenolic compounds, vitamin E, and mineral contents of new amaranth (BRS Alegria) and quinoa (BRS Piabiru) cultivars which were produced in order to adapt these pseudocereals to the climatic conditions of central-western Brazil. They showed superior levels of protein and total lipids in comparison to their native counterparts. The lipid profile of the amaranth BRS Alegria was revealed to be better than those of other native cultivars. Quinoa BRS Piabiru presented a higher antioxidant capacity and phenolic content than the studied amaranth cultivar, but lower contents of tocopherols. All of the obtained results confirm that these new grains...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Amaranth BRS Alegria; Quinoa BRS Piabiru; Fatty acids.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612013000200019
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Incorporation and profile of fatty acids in tilapia fillets (Oreochromis niloticus) fed with tung oil Ciênc. Tecnol. Aliment.
Bonafé,Elton Guntendorfer; Morais,Damila Rodrigues de; Figueiredo,Luana Caroline de; Souza,Nilson Evelázio; Santos,Oscar Oliveira; Claus,Thiago; Visentainer,Jesuí Vergílio.
The acceptance of tung oil enriched diet and the incorporation of conjugated linolenic acid - CLnA into fillets of Genetically Improved Farmed Tilapia (GIFT) were investigated. The diet was well accepted, and after 10 days CLnA was incorporated into the fillets with a 1.02% content of total fatty acids (FA). In addition, biosynthesis of the conjugated linoleic acid isomers - CLA (0.31% of fillet total FA content) from CLnA, and the presence of alpha-linolenic acid - LNA (1.08% of fillet total FA content), eicosapentaenoic acid - EPA (2.85% of fillet total FA content) and docosahexaenoic acid - DHA (3.08% of fillet total FA content) were observed. Therefore, the consumption of this fish can increase the intake of different FA (CLnA, CLA, LNA, EPA and DHA),...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Conjugated linolenic acid; Tilapia fillet; Genetically improved farmed tilapia.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612013000500008
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