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| Comparison of sunflower seed kernels composition with different particle sizes |
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| DOI： |
| KeyWord:sunflower seed kernel multi-stage fine separation particle size composition difference |
| FundProject: |
| Author Name | Affiliation | | ZHANG Liwei1,2,GUO Jinting1 , CHEN Jianguo3,XU Yi3,ZHENG Jingcheng1,2,LUO Zhi1,2,HE Dongping1,2,ZHAO Xiaoping3 | 1.College of Food Science and Engineering，Wuhan Polytechnic University，Wuhan 430023,China
2.Key Laboratory of Bulk Grain and Oil Intensive Processing, Ministry of Education，Wuhan 430023, China； 3.Alashankou Jinmu Biotechnology Co. , Ltd. ，Alashankou 833418,Xinjiang, China |
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| Abstract: |
| In order to provide a theoretical basis for the application of sunflower seed kernels grading, sunflower seed were used as raw material, and sunflower seeds were hulled and graded by multi-stage fine separation system to three particle sizes of small (≤3 mm), medium (3-4 mm) and large (>4 mm), and the composition of sunflower seed kernels was compared and analyzed, respectively.The results showed that the oil content of sunflower seed kernels of all particle sizes was more than 60%, the relative content of unsaturated fatty acids in oil was more than 85%, and the sunflower seed kernels with small particle size had the highest oil content and relative content of linoleic acid in oil. The content of crude protein of sunflower seed kernels was 44.93%-53.33%, and the sunflower seed kernels with large particle size had the highest crude protein and amino acids content. The content of chlorogenic acid of sunflower seed kernels was 26 314.93 -28 095.98 ng/mg, and the sunflower seed kernels with medium particle size had the highest chlorogenic acid content. The total starch content of sunflower seed kernels was 0.067%-0.090%, with the highest total starch content in the small particle size sunflower seed kernels. The content of resistant starch was 0.019%-0.032%, and the sunflower seed kernels with medium particle size had the highest resistant starch content. |
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