数字农科院2.0

Adsorption removal of cyclolinopeptide E from linseed oil using sodium chloride-induced walnut shell biochar: Kinetic and mechanism

文献类型： 外文期刊

作者： Tingting Guo;Chuyun Wan;Tieliang Liu;Jianwu Xi;Qianchun Deng;Fenghong Huang;Rui Liu

作者机构：

关键词： Adsorption;Biochar;Debittering;Linseed oil;NaCl immersion;Walnut shell

期刊名称： Food Chemistry

ISSN： 0308-8146

年卷期： 2025 年 492 卷

页码：

收录情况： SCIE（2025版） ; ; EI（2025版）

摘要： To produce linseed oil with mild bitterness, walnut shell biochar (WBSC) was synthesized via NaCl immersion, anaerobic calcination, and template removal for adsorbing bitter cyclolinopeptide E. Subsequently, a series of adsorption experiments were carried out to investigate the influence of various parameters on adsorption capacity and explain adsorption performance of the biochar. WBSC-30, prepared at 30 °C, exhibited the highest adsorption efficiency (93.66 %) due to its optimal specific surface area, pore size (12.04 nm), and abundant oxygen-containing functional groups, enabling simultaneous pore and surface adsorption. The adsorption behavior of WBSC-30 was confirmed to be spontaneous and endothermal, and was in accordance with pseudo-second-order kinetic and Langmuir isotherms model. Furthermore, compared with crude oil, WSBC-30-treated oil maintained original fatty acid profiles (p > 0.05) and > 82 % minor components retention. Overall, WBSC-30 appeared to be preferable for the efficient production of linseed oil with mild bitterness.

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