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    Please use this identifier to cite or link to this item: https://ir.cnu.edu.tw/handle/310902800/34131


    標題: Development and validation of an ultrasound-assisted supercritical carbon-dioxide procedure for the production of essential oils from Perilla frutescens
    作者: Yang, Yu-Chiao
    Wang, Chia-Sui
    Wei, Ming-Chi
    貢獻者: Kaohsiung Med Univ, Dept & Grad Inst Pharmacol
    Kaohsiung Med Univ Hosp, Dept Med Res
    Chia Nan Univ Pharm & Sci, Dept Appl Geoinformat
    關鍵字: Perilla frutescens
    Steam distillation
    Ultrasound-assisted supercritical CO2 extraction
    Volatile oils
    Theoretical solubility
    日期: 2020
    上傳時間: 2022-11-18 11:25:17 (UTC+8)
    出版者: Elsevier
    摘要: Four different isolation techniques, the ultrasound-assisted supercritical CO2 (UscCO(2)) extraction, traditional supercritical CO2 (TscCO(2)) extraction, steam distillation (STD) and heat-reflux extraction (HRE), were utilized to isolate volatile oils from the purple leaves of P. frutescens. The highest yield of volatile oils obtained by the UscCO(2) procedure was 1.62% (weight of extracted oil/dry weight of plant material), which was 13.7, 30.2 and 72.2% higher than the oil yields obtained by TscCO(2) extraction, STD and HRE, respectively. In addition, the content of perillaldehyde (49.76%, w/w) obtained by the UscCO(2) process was approximately 1.09, 1.43 and 1.23 times higher than the contents obtained by STD, HRE and TscCO(2) extraction, respectively. Moreover, the theoretical solubility of volatile oils in supercritical solvent was evaluated with the dynamic extraction method and then correlated with the Chrastil, Bartle and Kumar and Johnston models, with average absolute relative deviations (AARDs) of 0.71%, 0.74% and 3.56%, respectively.
    關聯: Lwt-Food Science and Technology, v.128, pp.8
    Appears in Collections:[應用空間資訊系(所)] 期刊論文

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