Anti-diabetic activity of red pitaya (Hylocereus polyrhizus) fruit
This study investigated the anti-insulin resistant activity of red pitaya (Hylocereus polyrhizus) fruit. Fresh pitaya along with two heat-processed pitaya samples with different proportions of phenolic contents, scavenging activities, and soluble dietary fibers were tested in insulin resistant rats...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Royal Society of Chemistry
2014
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| Online Access: | http://psasir.upm.edu.my/id/eprint/36473/1/Anti-diabetic%20activity%20of%20red%20pitaya%20%28Hylocereus%20polyrhizus%29%20fruit.pdf http://psasir.upm.edu.my/id/eprint/36473/ |
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| Institution: | Universiti Putra Malaysia |
| Language: | English |
| Summary: | This study investigated the anti-insulin resistant activity of red pitaya (Hylocereus polyrhizus) fruit. Fresh pitaya along with two heat-processed pitaya samples with different proportions of phenolic contents, scavenging activities, and soluble dietary fibers were tested in insulin resistant rats over 6 weeks of treatment in a cause-effect study to investigate the anti-insulin resistant components of red pitaya. The results showed that fresh pitaya significantly (p < 0.05) attenuated the insulin resistance, hypertriglyceridemia and atherosclerotic changes induced by fructose supplement in rats. Thermally-treated pitaya at 95 °C for 30 min (containing a low antioxidant content) significantly (p < 0.05) improved hyperinsulinemia. Thermally-treated pitaya at 105 °C for 60 min (containing a low antioxidant and soluble dietary fiber content) fed to rats had no significant effect on insulin resistance, dyslipidemia and atherogenesis. Based on this study, the anti-insulin resistant effect of red pitaya can be attributed to its antioxidant and soluble dietary fiber contents. |
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