文献类型： 外文期刊

作者： Cui, Wei ¹ ; Xu, Rongji ¹ ; Li, Xiaoqiong ² ; Yang, Junling ² ; Xu, Peng ² ; Zhang, Zhentao ² ; Yu, Ze ⁴ ; Adiges, Saramaiti ⁵ ;

作者机构： 1.Beijing Univ Civil Engn & Architecture, Sch Environm Energy, Beijing 100190, Peoples R China

2.Chinese Acad Sci, Tech Inst Phys & Chem, Beijing 100190, Peoples R China

3.China Natl Light Ind, Key Lab Equipment & Energy Saving Technol Food & P, Beijing 100190, Peoples R China

4.Changsha Borui Dingneng Power Technol Co Ltd, Changsha 410078, Peoples R China

5.Xinjiang Acad Agr Sci, Urumqi 830091, Peoples R China

关键词： supercritical CO2 extraction; rose essential oils; preprocessing method; extraction influencing factors; extraction pressure; extraction temperature

期刊名称：PROCESSES （ 影响因子：2.8； 五年影响因子：3.0 ）

ISSN：

年卷期： 2024 年 12 卷 7 期

页码：

收录情况： SCI

摘要： A longstanding concern in plant essential oil extraction is how to optimize extraction efficiency with limited materials. Supercritical CO2 extraction has been proven effective in enhancing the yield and efficiency of extracting plant essential oils. However, the impact of temperature, pressure, and co-solvent content on extracting Hetian rose essential oil remains unclear. There is a lack of research on the influence of pretreatment methods. This study focuses on investigating supercritical CO2 extraction of rose essential oils from Xinjiang Hetian. The research analyzes the effects of pressure and temperature on the extraction rate and validates the efficiency by calculating the solubility of essential oils in supercritical fluid. Under conditions of 35 MPa, 40 degrees C, 10 L/h, and a particle size of 0.8 mm, this study evaluates the extraction efficiency using Xinjiang Hetian rose materials pretreated with salt solutions at concentrations of 5%, 10%, and 20%, as well as enzyme solutions at concentrations of 2%, 5%, and 10%. Results indicate that appropriate solution concentration can enhance the extraction effect and mass transfer process, but excessively low or high concentrations do not contribute to improved extraction reactions. The highest extraction rate (8.99%) is achieved using a salt solution concentration of 10%, while the lowest (4.21%) is obtained with a salt solution concentration of 20%.