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| Quality comparison of cold pressed and hot pressed Xanthoceras sorbifolia Bunge. seed oils |
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| DOI： |
| KeyWord:Xanthoceras sorbifolia Bunge. seed oil physicochemical property trace element content fatty acid composition |
| FundProject:国家自然科学基金资助项目（51476149） |
| Author Name | Affiliation | | CHANG Zhijuan1,2, LI Hong1,2, BO Linfei1 | 1.School of Food and Bioengineering, Zhengzhou University of Light Industry,
Zhengzhou 450002,China； 2.Collaborative Innovation Center of Food Production and Safety of
Henan Province, Zhengzhou University of Light Industry, Zhengzhou 450002,China |
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| Abstract: |
| Xanthoceras sorbifolia Bunge. seed from Jiyuan in Henan was separately pressed by cold pressing method and hot pressing method to obtain oil, and the physicochemical indexes, trace element contents and fatty acid compositions of cold pressed Xanthoceras sorbifolia Bunge. seed oil and hot pressed Xanthoceras sorbifolia Bunge. seed oil were comparatively analyzed.The results showed that the Xanthoceras sorbifolia Bunge. seed was brown and depressed-globose, and its volume weight and hundred seed weight were 0.936 kg/L and 119.7 g, respectively.The contents of moisture, crude protein and crude fat in Xanthoceras sorbifolia Bunge. seed kernel were 8.61%, 17.4% and 43.7%, respectively. There was almost no sugar detected in the seed kernel.The peroxide value, saponification value and ash content of hot pressed oil were higher than those of cold pressed oil. While the acid value of hot pressed oil was lower than that of cold pressed oil. The contents of copper, zinc, manganese and chromium in cold pressed oil were higher than those of hot pressed oil. However, the content of iron in cold pressed oil was lower than that of hot pressed oil. There was almost no difference in the content and composition of fatty acid between hot pressed oil and cold pressed oil. Ten kinds of fatty acids were detected in Xanthoceras sorbifolia Bunge. seed oil. The content of unsaturated fatty acids was more than 90%, in which the contents of linoleic acid and oleic acid were higher. |
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