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| Comparison of crude fat contents and oil fatty acid compositions of different species of almond kernel in different harvest time |
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| KeyWord:almond harvest time crude fat fatty acid |
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| Abstract: |
| The crude fat contents and oil fatty acid compositions of four species of almond kernel in different harvest time were determined and analyzed. The results showed that the crude fat contents in different species of almond kernel were accumulating and rising, and the difference in the crude fat contents was significant(p＜0.05), indicating that the harvest time had a great influence on the crude fat content of amond kernel, and the more mature the kernel, the better the accumulation of crude fat. Four fatty acids were detected in the four species of almond kernel oils in different harvest time, which were palmitic acid, stearic acid, oleic acid and linoleic acid. The contents of saturated fatty acids were lower than 10% with overall a downward trend, and the contents of unsaturated fatty acids were in the range of 904%-93.2%. The contents of oleic acid（58.9%-77.6%）were the highest, and showed an upward trend. The contents of linoleic acid（15.2%-31.7%）were higher, and showed a downward trend (except Prunus amygdalus). Almond was a high quality oil crop with high development value. |
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