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首页> 外文期刊>Food Science & Nutrition >Optimization of the extraction of the p -menthadienol isomers and aristolone contained in the essential oil from Elyonurus hensii using a 2 3 full factorial design
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Optimization of the extraction of the p -menthadienol isomers and aristolone contained in the essential oil from Elyonurus hensii using a 2 3 full factorial design

机译：使用2 3全因子设计优化从香茅Elyonurus hensii精油中所含的对-薄荷脑烯醇异构体和马兜铃酮的提取工艺优化

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Abstract The aim of this study was to optimize the extraction of p -menthadienol isomers and aristolone from the essential oil of Elyonurus hensii by hydrodistillation. The study of the seasonal variation in the chemical composition has shown that the plant material has been subject to a natural selection regarding the biosynthesis of the p -menthadienol isomers: during periods of water stress, the extracts are rich in cis and trans-p -mentha-1(7),8-dien-2-ol and poor in cis and trans-p -mentha-2,8-dien-1-ol. Regarding the modeling, eight experiments were carried out by considering three easily interpretable factors (the extraction duration, the residual water content and the state of the division of the plant material). The average yield was 1.33% for the aerial part and 0.74% for the roots. The residual water content is the most important factor, which significantly influences the average yield of the essential oil and the content of the major constituents. Regarding the aerial part, a low residual water content of the plant material varies the essential oil yield (from 0.40% to 2.11%) and the content of cis and trans - p -mentha-2.8-dien-1-ol (from 15.87% to 23.24%). At the root level, the samples that have a very low residual water content provide extracts richer in aristolone. The combined effects of the extraction duration, the state of division, and the residual water content influence greatly the extraction of aristolone (from 36.68% to 54.55%). However, these interactions are more complex and difficult to assess.
机译：摘要这项研究的目的是优化通过水蒸馏从香附子香油中提取对薄荷脑中的对-薄荷脑烯醇异构体和马兜铃酮的方法。对化学成分的季节性变化的研究表明，植物材料在对-薄荷脑烯醇异构体的生物合成方面经过了自然选择：在缺水时期，提取物中富含顺式和反式-p- mentha-1（7），8-dien-2-ol和顺式和反式-p-mentha-2,8-dien-1-ol差。关于建模，通过考虑三个易于解释的因素（提取时间，残留水含量和植物材料的划分状态）进行了八次实验。地上部分的平均产量为1.33％，根部的平均产量为0.74％。残留水含量是最重要的因素，它显着影响香精油的平均产量和主要成分的含量。关于地上部分，植物材料的残留水含量低，会改变精油的产量（从0.40％到2.11％）以及顺式和反式-p-mentha-2.8-dien-1-ol的含量（从15.87％）至23.24％）。从根本上讲，残留水分非常低的样品提供的提取物富含亚里士多德。提取持续时间，分裂状态和残留水分的综合影响极大地影响了马兜铃酮的提取（从36.68％到54.55％）。但是，这些交互更复杂且难以评估。

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