Towards dry fractionation of soybean meal into protein and dietary fiber concentrates
Towards dry fractionation of soybean meal into protein and dietary fiber concentrates
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将豆粕干法分离成蛋白质和膳食纤维浓缩物
DOI：
10.1016/j.jfoodeng.2022.111358
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发表时间：
2023
影响因子：
5.5
通讯作者：
Tabtabaei, Solmaz
中科院分区：
文献类型：
--
作者：
Kuspangaliyeva, Botagoz;Konakbayeva, Dinara;Tabtabaei, Solmaz
研究了摩擦静电分离己烷脱脂大豆粉以产生富含蛋白质和纤维的组分。分离在层流和湍流气流速率下进行，板电压范围为±1至±6.5 kV。层流气流速率和高板电压的组合导致蛋白质和纤维颗粒的最高产率，具有适度的富集水平。相应地，大豆粉富含55.3%至58.4%的蛋白质和15.4%至19.6%的纤维，分别占44.4%和16.8%的蛋白质和纤维分离效率。蛋白质和纤维沿着带负电荷电极的分布在富集水平方面没有表现出显著差异。尽管如此，根据产量结果，更多的蛋白质和纤维颗粒积累在电极底部。在7 LPM和±6.5 kV下，发现蛋白质含量与级分的平均粒度之间存在直接关系。与此相反，纤维含量的反向关系。
Tribo-electrostatic separation of hexane-defatted soybean flour was studied to produce protein- and fiber-rich fractions. The separation was carried out under laminar and turbulent airflow rates and plate voltages ranging from ±1 to ±6.5 kV. The combination of laminar airflow rate and high plate voltage resulted in the highest yield of protein and fiber particles with modest enrichment levels. Accordingly, the soybean flour was enriched in protein from 55.3 to 58.4% and fiber from 15.4 to 19.6%, accounting for 44.4 and 16.8% protein and fiber separation efficiencies, respectively. The distribution of protein and fiber along the negatively charged electrode showed no significant difference in terms of enrichment level. Still, more protein and fiber particles accumulated at the bottom of the electrode, according to the yield results. At 7 LPM and ±6.5 kV, a direct relationship was found between protein content and the average particle size of the fractions. In contrast, a reverse relationship was found for the fiber content.
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