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Effect of domestic processing on the polyphenol content and bioaccessibility in finger millet (Eleusine coracana) and pearl millet (Pennisetum glaucum).
Gavirangappa, Hithamani and Srinivasan, K. (2014) Effect of domestic processing on the polyphenol content and bioaccessibility in finger millet (Eleusine coracana) and pearl millet (Pennisetum glaucum). Food Chemistry, 164. pp. 55-62.
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Food Chemistry, Volume 164, 1 December 2014, Pages 55-62.pdf - Published Version Restricted to Registered users only Download (323kB) |
Abstract
Finger millet (Eleusine coracana) and pearl millet (Pennisetum glaucum) were evaluated for polyphenolic content and their bioaccessibility. Total polyphenols of native finger millet was 10.2 mg/g which reduced by 50% after sprouting or pressure-cooking, while 12–19% reduction was seen after open-pan boiling. Total flavonoids of the grain reduced drastically on sprouting, pressure-cooking or open-pan boiling. Concentration of phenolic acids generally increased during sprouting and roasting of finger millet. Pressure cooking, open-pan boiling and microwave-heating reduced the bioaccessible polyphenols by 30–35%, while the same was increased by 67% by sprouting. Significant reduction of total polyphenols was observed in pressure-cooked, open-pan boiled and microwave-heated pearl millet. Concentration of sinapic and salicylic acids were highest phenolic acids of pearl millet. Total polyphenols reduced during sprouting and pressure-cooking. There was a 20% increase in the bioaccessible polyphenols after sprouting of pearl millet. Thus, sprouting and roasting provided more bioaccessible phenolics from these two common millets studied.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Bioaccessibility, Domestic processing, Finger millet Pearl millet, Polyphenols |
| Subjects: | 600 Technology > 08 Food technology > 21 Cereals > 05 Ragi (Finger Millet) 600 Technology > 08 Food technology > 05 Processing and Engineering |
| Divisions: | Dept. of Biochemistry |
| Depositing User: | Food Sci. & Technol. Information Services |
| Date Deposited: | 08 Jul 2014 07:01 |
| Last Modified: | 08 Jul 2014 07:01 |
| URI: | http://ir.cftri.res.in/id/eprint/11617 |
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