水蒸馏提取动力学回归模型在 和 中的精油产率和成分研究。
Hydrodistillation Extraction Kinetics Regression Models for Essential Oil Yield and Composition in , , and .
机构信息
Department of Botany and Agrometeorology, Agricultural University, Mendeleev 12, 4000 Plovdiv, Bulgaria.
Department of Crop and Soil Sciences, Washington State University, 225 Johnson Hall, Pullman, WA 99163, USA.
出版信息
Molecules. 2019 Mar 11;24(5):986. doi: 10.3390/molecules24050986.
The chemical profile and antioxidant capacity of , , and essential oil (EO) fractions as a function of time was the subject of this study. The hypothesis was that, capturing EO in sequential timeframes during hydrodistillation would generate fractions containing unique compositions and antioxidant capacity. In , the highest limonene (43%) was found in the 0⁻5 min oil fraction, with safrole (37%) being highest in the 10⁻20 and 20⁻40 min fractions, and elemol (34%) being highest in the 160⁻240 min fraction. In , α-pinene (34-36%) was the highest in the 0⁻5 min fraction and in the control (non-stop 0⁻240 min distillation) oil, limonene (39%) was the highest in the 0⁻10 min fractions and cedrol (50-53%) was the highest in the 40⁻240 min fractions. In , sabinene (80%) was highest in the 0⁻3 min fraction. The highest antioxidant capacity of was demonstrated by the 5⁻10 min fraction; the one in by the 3⁻10 min fraction; and, the one in , by the control. The kinetics regression models that were developed can predict EO composition of the three juniper species eluted at different timeframes. Various industries could benefit from the results from this study.
本研究探讨了、和柏科精油（EO）馏分随时间推移的化学特征和抗氧化能力。假设是，在水蒸馏过程中按时间顺序捕获精油，会产生具有独特成分和抗氧化能力的馏分。在中，0⁻5 分钟的精油馏分中柠檬烯含量最高（43%），10⁻20 分钟和 20⁻40 分钟馏分中黄樟素含量最高（37%），160⁻240 分钟馏分中桉叶醇含量最高（34%）。在中，α-蒎烯（34-36%）在 0⁻5 分钟馏分和对照（不停蒸馏 0⁻240 分钟）油中含量最高，柠檬烯（39%）在 0⁻10 分钟馏分中含量最高，雪松醇（50-53%）在 40⁻240 分钟馏分中含量最高。在中，桧烯（80%）在 0⁻3 分钟馏分中含量最高。具有最高抗氧化能力的是 5⁻10 分钟馏分；在 中是 3⁻10 分钟馏分；在 中是对照。开发的动力学回归模型可以预测三种杜松在不同时间框架下洗脱的精油成分。各个行业都可以从这项研究的结果中受益。
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