Antioxidant,anti-amylase and anti-glycation potential of brans of some Sri Lankan traditional and improved rice (Oryza sativa L.) varieties |
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Authors: | G.A.S. Premakumara W.K.S.M. Abeysekera W.D. Ratnasooriya N.V. Chandrasekharan A.P. Bentota |
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Affiliation: | 1. Herbal Technology Section (HTS), Industrial Technology Institute (ITI), 363, Bauddhaloka Mawatha, Colombo 07, Sri Lanka;2. Department of Zoology, Faculty of Science, University of Colombo, Colombo, Sri Lanka;3. Department of Chemistry, Faculty of Science, University of Colombo, Colombo, Sri Lanka;4. Rice Research and Development Centre (RRDC), Bombuwala, Sri Lanka |
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Abstract: | Brans of 23 traditional and 12 improved (both red and white) rice varieties in Sri Lanka were screened for anti-amylase and anti-glycation activities in vitro. Varieties which showed the highest inhibitory activities at screening were further investigated for anti-glucosidase and glycation reversing as anti-diabetic properties. The same varieties were studied for selected antioxidant properties. Significantly high anti-amylase and anti-glycation activities were observed for bran extracts of red varieties compared to white varieties at screening. Traditional red rice varieties, Masuran, Sudu Heeneti, Dik Wee and Goda Heeneti, exhibited significant and dose dependent anti-amylase, anti-glycation and glycation reversing activities. These varieties also showed marked antioxidant properties. It is concluded that brans of Sri Lankan traditional red rice varieties Masuran, Sudu Heeneti, Dik Wee and Goda Heeneti may be potential food supplements for diabetes. |
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Keywords: | Anti-amylase Anti-glycation Glycation reversing Antioxidant Sri Lankan (traditional/improved) rice Red and white rice bran |
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