液化二甲醚作为高γ-阳离子醇米糠油的替代提取溶剂:系统的 HSP 理论和实验评估

IF 20.2 Q1 MATERIALS SCIENCE, PAPER & WOOD
Phannipha Daisuk , Seiichi Takami , Masaki Honda , Motonobu Goto , Chonlatep Usaku , Artiwan Shotipruk
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引用次数: 0

摘要

本研究旨在系统地寻找一种可替代正己烷的溶剂,用于从米糠(RB)中提取γ-oryzanol含量高的生物油。选择过程包括通过汉森溶解度理论预测溶解度、实验验证、确定合适的萃取条件,以及与传统正己烷进行油质比较。利用汉森溶解度球初步评估了多种溶剂:亚临界水(SCW)、超临界二氧化碳(SCCO2)、生物基溶剂(醇和萜烯)以及液化二甲醚(LDME)对米糠油(RBO)和γ-奥氮醇的溶解度。实验选择/确定了对米糠油和γ-oryzanol均具有高溶解度的溶剂,包括 LDME、乙酸乙酯、丙酮和其他已知可有效提取植物油的溶剂(醇类和 SCCO2),并进行了提取对比。其中,LDME 的整体性能更好,溶解度更高,所需的溶剂更少,持续时间更短,压力更低,并且在同等萃取条件下无需额外的助溶剂。LDME 的最佳萃取条件为 30 °C,溶剂与样品的比率为 10 mL/g,萃取时间为 10 分钟。用 LDME 和正己烷萃取的油脂显示出相似的脂肪酸组成,并且没有观察到 LDME 萃取后对 RB 蛋白质和碳水化合物结构的不利影响。这项研究表明,用 LDME 替代正己烷萃取 RBO 是一种很有前途的方法,可将这种丰富的低成本 RB 残留物进一步转化为生物油及其 γ -oryzanol 和脱油 RB 副产品。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Liquefied dimethyl ether as alternative extraction solvent for high γ-oryzanol rice bran oil: Systematic HSP theory and experimental evaluation
This study aimed to systematically find an alternative solvent to replace hexane for the extraction of bio-oil with high γ-oryzanol content from rice bran (RB). The selection involved predicting solubility through Hansen solubility theory, experimental validation, determination of suitable extraction conditions, and comparison of oil quality with that of conventional hexane. A wide variety of solvents: subcritical water (SCW), supercritical carbon dioxide (SCCO2), bio-based solvents (alcohols and terpenes), and liquefied dimethyl ether (LDME), were initially assessed for rice bran oil (RBO) and γ-oryzanol solubility using Hansen solubility spheres. Solvents demonstrating high solubility for both RBO and γ-oryzanol, including LDME, ethyl acetate, acetone, and others (alcohols and SCCO2) known for effective vegetable oil extraction, were selected/identified for experimental extraction comparison. Among these, LDME performed better overall, affording greater solubility and requiring less solvent, shorter duration, lower pressure, and no additional co-solvents for equivalent extractions. Optimal conditions for LDME extraction were identified as 30 °C with a solvent-to-sample ratio of 10 mL/g and an extraction time of 10 min. Oils extracted with LDME and hexane displayed similar fatty acid compositions and no adverse effects on RB protein and carbohydrate structures after LDME extraction were observed. This study demonstrates LDME as a promising alternative to replace hexane for RBO extraction to further valorize this abundant low-cost RB residue into bio-oil and its γ-oryzanol and de-oil RB co-products.
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来源期刊
Journal of Bioresources and Bioproducts
Journal of Bioresources and Bioproducts Agricultural and Biological Sciences-Forestry
CiteScore
39.30
自引率
0.00%
发文量
38
审稿时长
12 weeks
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