應用實驗設計法於超臨界二氧化碳萃取印加果精油之研究

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題名:	應用實驗設計法於超臨界二氧化碳萃取印加果精油之研究 Supercritical Carbon Dioxide Extraction of the Essential oil from Plukenetia volubilis Using the Experimental Design Method
作者:	朱思嘉
貢獻者:	化學工程與材料工程學系奈米材料碩士班
關鍵詞:	超臨界二氧化碳印加果萃取中央合成設計法索氏萃取傅立葉紅外線光譜儀 Supercritical carbon dioxide Plukenetia Volubilis Sacha Inchi Essential oil extraction Central synthesis design Soxhlet extraction Fourier infrared spectrometer
日期:	2020
上傳時間:	2020-08-11 13:51:23 (UTC+8)
摘要:	本研究中使用超臨界二氧化碳對印加果進行萃取，以探討溫度及壓力對於精油產率之影響，本實驗採用了中央合成設計法(CCD)，對每組實驗的條件因子分別設立了五種水準，壓力條件為2895 psi、3100psi、3600 psi、4100psi、4305 psi，溫度條件為40.77℃、42℃、45 ℃、48℃、49.23 ℃，本實驗之中央合成設計含有2個條件因子，因此會有4個角點，4個軸點及5個中央點，一共有13組實驗。實驗結束後，將實驗數據利用SPSS軟體進行二階迴歸分析和變異數分析取得各個變數之統計值，再利用MATLAB將回歸數據繪製成的二維迴歸線圖和等高線圖，並藉由精油的產率在各個因子及因子間交互作用的顯著性，分析得出本次實驗中最佳的萃取條件。並比較索氏萃取法取得之印加果油之粗脂肪率與超臨界萃取法所得之印加果油產率兩者之差異。再利用傅立葉紅外線光譜儀分析兩種萃取法所得精油成分是否一致。通過實驗條件所得到最大產率為25.23%，壓力條件為4305psi，溫度條件為45°C，從中央合成實驗的迴歸分析中可看出壓力對產率的影響結果是最大的，而溫度對於產率雖有影響但卻並不明顯，且使用傅立葉紅外線光譜儀進行分析，傅立葉紅外線光譜儀分析因從中可以發現兩種萃取法分析出的吸收峰大致相同，但因正己烷之峰值與產物峰值重疊且訊號稍強，此結果可以得知在超臨界二氧化碳萃取法與索式萃取法所得的產物成分是幾乎相同但索式萃取中會有正己烷溶劑之殘留。 In this study, supercritical carbon dioxide is being used to extract Plukenetia Volubilis, in order to discover the variety of oil yield in terms of temperature and pressure. The two-factor experiment is designed based on central composite design (CCD) involving 4 factorial experiments, 4 axial experiments and 5 central experiment conducted by 5 essential levels for each factor in one replicate. The level of pressure is setup in 2895 psi, 3100 psi, 3600 psi and 4100psi and the level of temperature are at 40.77℃, 42℃, 45 ℃, 48℃ and 49.23 ℃ respectively. The second order regression is given for fitting experimental data by using Excel and the analysis of variance (ANOVA) is obtained by SPSS. The second order regression and contour are plotted by MATLAB to determine whether the oil yield is statistical significance between those two factors and to come out with the finest extraction condition in the experiment. Finally, the oil yield comparison of Soxhlet extraction and supercritical carbon dioxide extraction is made and the Fourier infrared spectrometer is used to validate whether the compositions are identical or not. The maximum yield obtained through the experimental conditions is 25.23%, the pressure condition is 4305 psi, and the temperature condition is 45 ° C. From the regression analysis of the central synthesis experiment, it can be seen that the effect of pressure on the yield is the largest. The temperature has an effect on the yield, but it is not obvious. The maximum yield obtained through the experimental conditions is 25.23%, the pressure condition is 4305psi, and the temperature condition is 45°C. From the regression analysis of the central synthesis experiment, it can be seen that the pressure has the greatest effect on the yield, and the temperature has the greatest effect on the yield. Although the rate has an effect, it is not obvious, and the Fourier infrared spectrometer is used for analysis. The Fourier infrared spectrometer analysis can find that the absorption peaks analyzed by the two extraction methods are roughly the same, but because the peak of n-hexane overlaps with the peak of the product and the signal is slightly Strong, this result shows that the composition of the product obtained by the supercritical carbon dioxide extraction method and the Soxhlet extraction method is almost the same, but there will be residual hexane solvent in the Soxhlet extraction.
顯示於類別:	[化學工程與材料工程學系暨碩士班] 博碩士論文

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