Effect of germination on γ-oryzanol content of selected Sarawak rice cultivars
Problem statement: Rice is rich in complex carbohydrates and beneficial bioactive compounds such as γ-Aminobutyric Acid (GABA), γ-oryzanol and vitamin. Several bioactive components are known to accumulate in rice during germination process. This study was to investigate the effect of germination pro...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Science Publications
2009
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| Online Access: | http://psasir.upm.edu.my/id/eprint/14252/ http://psasir.upm.edu.my/id/eprint/14252/1/ajassp.2009.1658.1661.pdf |
| _version_ | 1848842342200508416 |
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| author | Kiing, Sie Cheong Yiu, Pang Hung Amarthalingam, Rajan Wong, Sie Chuong |
| author_facet | Kiing, Sie Cheong Yiu, Pang Hung Amarthalingam, Rajan Wong, Sie Chuong |
| author_sort | Kiing, Sie Cheong |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Problem statement: Rice is rich in complex carbohydrates and beneficial bioactive compounds such as γ-Aminobutyric Acid (GABA), γ-oryzanol and vitamin. Several bioactive components are known to accumulate in rice during germination process. This study was to investigate the effect of germination process on γ-oryzanol levels in selected Sarawak local rice cultivars. Approach: Rice seeds were germinated for 4, 8, 12, 16, 18, 20 or 24 h at 25°C and samples were processed and analyzed for γ-oryzanol content. A partial extraction method was used for quantitative γ- oryzanol analysis. Results: Result showed γ-oryzanol concentrations in the rice cultivars varied from 0.099-0.340 mg g-1 on dry weight basis. Cultivars Udang Halus and Silah showed the highest concentration of γ-oryzanol after 16 h germination. Conclusion: The germination process exhibited diverse effects on the γ-oryzanol accumulation in rice and it was cultivar dependent. |
| first_indexed | 2025-11-15T07:57:36Z |
| format | Article |
| id | upm-14252 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T07:57:36Z |
| publishDate | 2009 |
| publisher | Science Publications |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-142522017-11-28T09:28:27Z http://psasir.upm.edu.my/id/eprint/14252/ Effect of germination on γ-oryzanol content of selected Sarawak rice cultivars Kiing, Sie Cheong Yiu, Pang Hung Amarthalingam, Rajan Wong, Sie Chuong Problem statement: Rice is rich in complex carbohydrates and beneficial bioactive compounds such as γ-Aminobutyric Acid (GABA), γ-oryzanol and vitamin. Several bioactive components are known to accumulate in rice during germination process. This study was to investigate the effect of germination process on γ-oryzanol levels in selected Sarawak local rice cultivars. Approach: Rice seeds were germinated for 4, 8, 12, 16, 18, 20 or 24 h at 25°C and samples were processed and analyzed for γ-oryzanol content. A partial extraction method was used for quantitative γ- oryzanol analysis. Results: Result showed γ-oryzanol concentrations in the rice cultivars varied from 0.099-0.340 mg g-1 on dry weight basis. Cultivars Udang Halus and Silah showed the highest concentration of γ-oryzanol after 16 h germination. Conclusion: The germination process exhibited diverse effects on the γ-oryzanol accumulation in rice and it was cultivar dependent. Science Publications 2009 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/14252/1/ajassp.2009.1658.1661.pdf Kiing, Sie Cheong and Yiu, Pang Hung and Amarthalingam, Rajan and Wong, Sie Chuong (2009) Effect of germination on γ-oryzanol content of selected Sarawak rice cultivars. American Journal of Applied Sciences, 6 (9). pp. 1658-1661. ISSN 1546-9239; ESSN: 1554-3641 http://www.thescipub.com/abstract/?doi=ajassp.2009.1658.1661 10.3844/ajassp.2009.1658.1661 |
| spellingShingle | Kiing, Sie Cheong Yiu, Pang Hung Amarthalingam, Rajan Wong, Sie Chuong Effect of germination on γ-oryzanol content of selected Sarawak rice cultivars |
| title | Effect of germination on γ-oryzanol content of selected Sarawak rice cultivars |
| title_full | Effect of germination on γ-oryzanol content of selected Sarawak rice cultivars |
| title_fullStr | Effect of germination on γ-oryzanol content of selected Sarawak rice cultivars |
| title_full_unstemmed | Effect of germination on γ-oryzanol content of selected Sarawak rice cultivars |
| title_short | Effect of germination on γ-oryzanol content of selected Sarawak rice cultivars |
| title_sort | effect of germination on γ-oryzanol content of selected sarawak rice cultivars |
| url | http://psasir.upm.edu.my/id/eprint/14252/ http://psasir.upm.edu.my/id/eprint/14252/ http://psasir.upm.edu.my/id/eprint/14252/ http://psasir.upm.edu.my/id/eprint/14252/1/ajassp.2009.1658.1661.pdf |