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首页> 外文期刊>RSC Advances >Innovative physically-assisted soda fractionation of rapeseed hulls for better recovery of biopolymers
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Innovative physically-assisted soda fractionation of rapeseed hulls for better recovery of biopolymers

机译：创新的油菜壳物理辅助苏打分馏技术，可更好地回收生物聚合物

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A better knowledge of the effect of non-conventional pretreatment technologies, which can avoid the use of high temperatures and detrimental solvents, is necessary. Thus, physical pretreatment (ultrasounds (US), microwaves (MW), high voltage electrical discharges (HVED) and pulsed electric fields (PEF)) were applied in order to evaluate their effects on acid insoluble residue removal and enzymatic hydrolysis yields from rapeseed hulls. The subsequent chemical treatment consisted of adding 0.3 mol L-1 of hydroxide sodium and maintaining the suspension at 60 degrees C for 2 h. The results showed that applying physical pretreatments resulted in an increasing yield of acid insoluble residue by 5% (PEF), 6% (MW), 8% (HVED), 12% (US) respectively, in comparison with the chemical treatment. The pulps isolated by physical-assisted extraction, showed a higher enzymatic digestibility. The results obtained in the present study confirm that coupling pretreatments constitute a promising alternative for the valorization of this by-product.
机译：必须更好地了解非常规预处理技术的效果，可以避免使用高温和有害溶剂。因此，进行了物理预处理（超声波（US），微波（MW），高压放电（HVED）和脉冲电场（PEF））以评估其对菜籽皮中酸不溶性残留物的去除和酶水解产量的影响。 。随后的化学处理包括添加0.3mol L-1的氢氧化钠并将悬浮液在60℃下保持2h。结果表明，与化学处理相比，采用物理预处理可使酸不溶性残渣的收率分别提高5％（PEF），6％（MW），8％（HVED）和12％（US）。通过物理辅助提取分离的果肉显示出更高的酶消化率。在本研究中获得的结果证实，偶联预处理构成了这种副产物的增值方法。

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