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| Ito,Vivian Cristina; Zielinski,Acácio Antônio Ferreira; Demiate,Ivo Mottin; Spoto,Marta; Nogueira,Alessandro; Lacerda,Luiz Gustavo. |
| Abstract The effects of gamma radiation (0, 1, 2 and 3 kGy) were used to evaluate the stability and thermal degradation kinetics of anthocyanins, as well as the stability of total phenolic compounds (TPC) and antioxidant activity at different temperatures (4, 25, 35 and 45 °C) during the storage (0, 30, 60, 90 and 120 days) of black rice flour. This flour can be used as ingredient for gluten-free cereal products with higher nutritional value. For this it is necessary to preserve the anthocyanin content during thermal processing and shelf-life periods. At time 0, the dose of 3 kGy provided all of the most available bioactive compounds, raising their antioxidant potential, except for TPC. During the storage at different temperatures up to 120 days, gradual... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Anthocyanins; Bioactive compounds; Irradiation; Stability; Thermodynamic parameters; Pigmented rice. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132019000100500 |
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| Nattawat Thitipramot; Nisakorn Sae-won; Phanuphong Chaiwut; Punyawatt Pintathong; Nont Thitilertdecha; Natthanej Luplertlop; Asadhawut Phiranrat. |
| The objective of this study was to determine proanthocyanidins and anthocyanins content and their antioxidant activity from four pigmented rice: Black glutinous, Homnin, Man-Pu, Sangyod by extract with 6 different solvents: DI water, 1%HCl-DI water, Ethanol, 1%HCl-Ethanol, Acetone, 1%HCl-Acetone. The results showed that the proanthocyanidin and anthocyanin contents were different between rice phenotypes and polarity of solvents (p<0.05). The total proanthocyanidin contents followed the order: Man-Pu, Sangyod, Homnin, Black glutinous. The highest proanthocyanidin content was found in ethanolic extract of Man-Pu rice (0.938 mg ECE/mg extract). Black glutinous rice contained high amount. Total anthocyanin content of the extracts followed the trend: Black... |
| Tipo: PhysicalObject |
Palavras-chave: Man pu rice; Sangyod rice; Black glutinous rice; Hom nin rice; Pro anthocyanin; Anthocyanin; Antioxidant activity; Pigmented rice; ข้าวมันปู; ข้าวสังข์หยด; ข้าวเหนียวดำ; ข้าวหอมนิล; โปรแอนโทไซยานิน; แอนโทไซยานิน; ฤทธิ์ต้านอนุมูลอิสระ. |
| Ano: 2012 |
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5427 |
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