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Effect of heat processing on phenolic constituents and nutritional quality of sunflower flours.
Sastry, M. C. S. and Subramanian, N. (1985) Effect of heat processing on phenolic constituents and nutritional quality of sunflower flours. Journal of the American Oil Chemists' Society, 62 (7). 1131-1134, 25 ref..
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JAOCS, Vol. 62, no. 7 (July 1985).pdf - Published Version Restricted to Registered users only Download (391kB) | Request a copy |
Abstract
Heat processing of dehulled, defatted sunflower flour (SF) resulted in a reduction in phenolic constituents, losses of chlorogenic acid (CGA) being heavier than those of caffeic acid (CA) and quinic acid (QA). Considerable losses in available lysine rather than total lysine were observed when SF was autoclaved at 1 kg/cm-2 (120 degree C) for 50-60 min. N solubility of SF protein in 0.02N NaOH showed a progressive decrease as the duration of heat treatment increased. Moderate heat treatment (15 min at 120 degree C) of SF had no significant beneficial effect on in vitro digestibility. Any advantage in decreasing the levels of CGA, CA and QA by moderate heat treatment of SF was apparently offset by the decrease in available lysine content and the resultant lowering of protein efficiency ratio (1.97 to 1.71) and net protein utilization (62.7 to 54.8).
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | MEAL-; sunflower meal, heat processing & nutritional values of dehulled defatted; sunflower meal, heat processing & phenolic constituents in dehulled defatted; HEATING-; NUTRITIONAL-VALUES; PHENOLS-; SUNFLOWERS-; heat processing & nutritional values of dehulled defatted sunflower meal; heat processing & phenolic constituents in dehulled defatted sunflower meal |
| Subjects: | 600 Technology > 08 Food technology > 19 Lipids-oils/fats > Sunflower Seed 600 Technology > 08 Food technology > 05 Processing and Engineering |
| Divisions: | Protein Chemistry and Technology |
| Depositing User: | Food Sci. & Technol. Information Services |
| Date Deposited: | 28 Feb 2018 10:47 |
| Last Modified: | 17 Oct 2018 06:41 |
| URI: | http://ir.cftri.res.in/id/eprint/6630 |
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