Comparative evaluation of the nutritional compositions of different Sri Lankan rice varieties on glycaemic regulation

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Published: Nov 15, 2022
Keywords:
Glycaemic index Minerals Proximate composition Rice Sri Lanka

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Rathnayake, R. M. H. W.
Department of Medical Laboratory Science, Faculty of Allied Health Sciences, University of Peradeniya, Peradeniya, Sri Lanka
Ranasinghe, J. G. S.
Department of Biochemistry, Faculty of Medicine, University of Peradeniya, Peradeniya, Sri Lanka

Abstract

The primary nutrition of rice (Oryza sativa) is carbohydrates in starches, sugars and fibre. The amount and type of carbohydrates are detrimental to health as they increase blood glucose levels, leading to the risk of diabetes. As intrinsic and extrinsic factors affect the glycaemic response of foods, understanding the influence of proximate composition and mineral content of rice on GI is useful. The nutritional composition and glycaemic potential of twelve rice varieties grown in Sri Lanka; Bg94-1, At405, Bw367, H.H.Z.36, Ld368, At362, Bg300, Bg352, Bg406, Madathawalu, Sudu heenati and Pachchaperumal were studied. The GI was calculated using fourteen healthy subjects consisting of seven males and seven females fed with cooked rice containing 50g carbohydrate and a reference food. The nutritional composition of the rice was compared with the GI of each variety. The GI of 12 rice varieties varied from 40- 69. The proximate and mineral compositions were significantly different except for the moisture level. This study suggested a significant negative correlation between GI and calcium content. Among the studied rice varieties, "Sudu heenati" showed a high level of calcium, chromium, protein and fibre values with low GI, which consumers would desire

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How to Cite
Rathnayake, R. M. H. W., & Ranasinghe, J. G. S. (2022). Comparative evaluation of the nutritional compositions of different Sri Lankan rice varieties on glycaemic regulation. International Journal of Agricultural Technology, 18(6), 2573–2584. retrieved from https://li04.tci-thaijo.org/index.php/IJAT/article/view/9017
Issue
Vol. 18 No. 6 (2022): November
Section
Original Study
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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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