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| 標題: | Development and validation of a green and sustainable procedure for the preparation of Perilla frutescens extracts |
| 作者: | Wei, Ming-Chi
Wang, Chia-Sui
Liou, Rey-May
Yang, Yu-Chiao |
| 貢獻者: | Chia Nan Univ Pharm & Sci, Dept Environm Engn & Sci
Air Force Acad, Ctr Gen Educ, Sect Math & Phys Sci
Kaohsiung Med Univ, Dept & Grad Inst Pharmacol
Kaohsiung Med Univ Hosp, Dept Med Res |
| 關鍵字: | Perilla frutescens
Rosmarinic acid
Ultrasound-assisted supercritical carbondioxide extraction
Mass transfer coefficients
Theoretical solubility
Thermodynamic parameters |
| 日期: | 2021 |
| 上傳時間: | 2023-11-11 11:47:06 (UTC+8) |
| 出版者: | ELSEVIER SCI LTD |
| 摘要: | A procedure combining supercritical CO2 and ultrasound-assisted (USC-CO2) extraction was developed to obtain rosmarinic acid (RA)-rich extracts from Perilla frutescens. Based on extraction yields and efficiencies, USC-CO2 was considered the best extraction method among the methods studied for obtaining RA from P. frutescens. The constant extraction rate period and the falling extraction rate period for USC-CO2 extraction of P. frutescens were 45 and 96 min long, respectively, and they were significantly shorter than those of traditional SC-CO2 (TSC-CO2) extraction. Furthermore, mass transfer coefficients were derived using the Sovov ' a model for the fluid and solid phases from USC-CO2 extraction, with values of 9.752 x 10(-3) and 4.203 x 10(-3) min(-1), respectively, which were obviously higher than those for TSC-CO2 extraction. Consequently, the theoretical solubilities of RA in the supercritical solvents used in dynamic USC-CO2 and TSC-CO2 extractions were estimated and found to be well correlated using three density-based models. |
| 關聯: | FOOD CHEM, v.369, pp.130929 |
| 顯示於類別: | [環境工程與科學系(所)] 期刊論文
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