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| Effect of refining process on quality of coconut oil |
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| KeyWord:coconut oil oil refining quality effect |
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| Abstract: |
| The effect of refining process on the quality of coconut oil was investigated. The changes of the physicochemical indexes, fatty acid composition, glycerides composition and fat accompaniment (sterol, tocopherol and polyphenol) of crude coconut oil, deacidified oil, bleached oil and deodorized oil were analyzed. The results showed that the acid value and peroxide value of coconut oil significantly decreased in the refining process, but there was no significant change in fatty acid composition and glycerides composition. The contents of total sterol, total tocopherol and polyphenol significantly decreased, and the loss rates were 6377%, 68.03% and 71.20%, respectively. These results showed that refining process could significantly influence oil quality, which indicated the necessarity of moderate processing in oil industry. |
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