左手香超臨界萃取條件對於產率以及精油組成影響之研究

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Title:	左手香超臨界萃取條件對於產率以及精油組成影響之研究 Research on the Influence of Coleus Amboinicus Supercritical Extraction Conditions on Yield and Essential Oil Composition
Authors:	楊致柔
Contributors:	化學工程與材料工程學系奈米材料碩士班
Keywords:	超臨界流體萃取左手香超臨界二氧化碳索氏萃取 Supercritical Fluid Extraction Coleus Amboinicus Supercritical Carbon Dioxide Soxhlet Extraction
Date:	2022
Issue Date:	2023-02-23 10:26:48 (UTC+8)
Abstract:	本次研究使用超臨界二氧化碳進行左手香精油的萃取，探討壓力、溫度對精油萃取率的影響。本次實驗使用32實驗設計，以壓力、溫度作為實驗條件因子，每組條件因子各有三個水準。在實驗的過程中，設定壓力條件為2100 psi、2800 psi、3500 psi，溫度條件為40℃、50℃、60℃，在固定流量150NL/hr下，每組重複三次，共27組。實驗結束後，對實驗數據進行雙因子變異數分析及二階迴歸分析，將迴歸分析之係數帶入MATLAB作圖軟體繪製反應曲面圖，再使用Excel繪製預估最大產率迴歸分析圖，探討各項因子間交互作用的顯著性，分析出本次實驗最佳的操作條件。實驗結果顯示在操作條件壓力2800psi、溫度40°C，可獲得最佳產率為2.49%，得出溫度為產率最大變因。 In this study, we used supercritical carbon dioxide fluid equipment for the extraction of essential oil from Coleus Amboinicus to investigate the effects of temperature and pressure on the yield of essential oil. This experiment uses a 32-experimental design, with pressure and temperature as the experimental condition factors, and each group of condition factors had three levels. The pressure conditions set in the experiment were 2100 psi, 2800 psi, and 3500 psi, and the temperature conditions were 40 °C, 50 °C, and 60 °C. Under a fixed flow rate of 150 NL/hr, each group was repeated three times, with a total of 27 groups. At the end of the experiment, the data were analyzed by variance analysis (ANOVA) and second-order regression analysis, and the coefficients of the regression analysis were transferred to the MATLAB graphing software to draw reaction surfaces, and then Excel was used to draw the regression analysis of the estimated maximum yield. In the end, observing the significance of the interaction between the various factors helps get the best extraction conditions.The experimental results show that under the operating conditions pressure of 2800 psi and temperature of 40 ° C, the optimum yield of 2.49% can be obtained, and it is concluded that the temperature is the largest variable factor of the yield.
Appears in Collections:	[Department of Chemical & Materials Engineering] thesis

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