Enrichment of Nutmeg Essential Oil from Oil-in-Water Emulsions with PAN-Based Membranes.

IF 3.3 4区工程技术 Q2 CHEMISTRY, PHYSICAL Membranes Pub Date : 2024-04-25 DOI:10.3390/membranes14050097

Huilan Yin, Haoyu Zhang, Jiaoyang Cui, Qianlian Wu, Linlin Huang, Jiaoyue Qiu, Xin Zhang, Yanyu Xiang, Bo Li, Hongbo Liu, Zhishu Tang, Yue Zhang, Huaxu Zhu

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Abstract

This study used polyacrylonitrile (PAN) and heat-treated polyacrylonitrile (H-PAN) membranes to enrich nutmeg essential oils, which have more complex compositions compared with common oils. The oil rejection rate of the H-PAN membrane was higher than that of the PAN membrane for different oil concentrations of nutmeg essential oil-in-water emulsions. After heat treatment, the H-PAN membrane showed a smaller pore size, narrower pore size distribution, a rougher surface, higher hydrophilicity, and higher oleophobicity. According to the GC-MS results, the similarities of the essential oils enriched by the PAN and H-PAN membranes to those obtained by steam distillation (SD) were 0.988 and 0.990, respectively. In addition, these two membranes also exhibited higher essential oil rejection for Bupleuri Radix, Magnolia Officinalis Cortex, Caryophylli Flos, and Cinnamomi Cortex essential oil-in-water emulsions. This work could provide a reference for membrane technology for the non-destructive separation of oil with complex components from oil-in-water emulsions.

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利用 PAN 膜从水包油型乳液中富集肉豆蔻精油。

这项研究使用聚丙烯腈（PAN）和热处理聚丙烯腈（H-PAN）膜来富集肉豆蔻精油，因为肉豆蔻精油的成分比普通精油更复杂。对于不同油浓度的肉豆蔻精油水包水乳液，H-PAN 膜的排油率高于 PAN 膜。热处理后，H-PAN 膜的孔径更小、孔径分布更窄、表面更粗糙、亲水性更高、疏油性更高。根据气相色谱-质谱（GC-MS）结果，PAN 和 H-PAN 膜富集的精油与蒸汽蒸馏（SD）获得的精油的相似度分别为 0.988 和 0.990。此外，这两种膜对柴胡、厚朴、黄柏和肉桂的水包精油乳液也表现出较高的精油回收率。这项工作可为从水包油乳液中无损分离含有复杂成分的油的膜技术提供参考。

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来源期刊

Membranes Chemical Engineering-Filtration and Separation

CiteScore

6.10

自引率

16.70%

发文量

1071

审稿时长

11 weeks

期刊介绍： Membranes (ISSN 2077-0375) is an international, peer-reviewed open access journal of separation science and technology. It publishes reviews, research articles, communications and technical notes. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. There is no restriction on the length of the papers. Full experimental and/or methodical details must be provided.