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Extraction of Perilla Seed Oil Using Supercritical Carbon Dioxide and GC-MS Analysis 被引量:5
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作者 杨丽嫔 周游 +2 位作者 耿姗姗 刘末 雷红 《Agricultural Science & Technology》 CAS 2017年第8期1509-1512,共4页
[Objective] This study was aimed to determine the optimal parameters for the extraction of perilla seed oil to obtain high-quality perilla seed oil and analyze its compositions. [Method] In this study, perilla seed oi... [Objective] This study was aimed to determine the optimal parameters for the extraction of perilla seed oil to obtain high-quality perilla seed oil and analyze its compositions. [Method] In this study, perilla seed oil was extracted using supercritical CO2 (SC-CO2). The effects of extraction time, temperature and pressure were investigated by single-factor experiments and orthogonal array testing (ORT). The chemical compositions of extracted perilla seed oil were investigated by GC-MS. [Result] The optimal conditions for the extraction of perilla seed oil using SC-CO2 were extraction time of 4 h, extraction temperature at 40 ℃, and extraction pressure at 23 MPa. Under these conditions, the extraction yield of perilla seed oil was maximized to 12.43%. GC-MS analysis revealed that perilla seed oil was a complex mixture containing 76.183% α-linolenic acid. [Conclusion] Supercritical CO2 extraction was proven to be an effective technology to extract oil from perilla seed, and GCMS was also a satisfactory method for analyzing the compositions of perilla seed oil. 展开更多
关键词 Perilla seed essential oil supercritical carbon dioxide extraction Or-thogonal array testing (OAT) gc-ms
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Optimization of Supercritical Carbon dioxide Extraction of Ginger Essential Oil by Response Surface Method 被引量:5
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作者 雷红 周仁杰 +2 位作者 魏巧年 李晓乐 吴静 《Agricultural Science & Technology》 CAS 2016年第9期2178-2182,共5页
[Objective] Ginger essential oil (GEO) is widely used in food production and medical field in recent years due to its prominent biological functions, and this study was conducted to obtain high-quality and high-puri... [Objective] Ginger essential oil (GEO) is widely used in food production and medical field in recent years due to its prominent biological functions, and this study was conducted to obtain high-quality and high-purity ginger essential oil from the fresh ginger. [Method] GEO was extracted from ginger roots by supercritical fluid extraction (SFE) method. The effects of flow rate of CO2, mesh size of ginger powder and volume of entrainer were investigated by single-factor experiments and response surface method. The content and extraction rate of 6-gingerol represented the extraction index of GEO. [Result] The conditions were optimized as follows: flow rate of CO2 at 25 L/h, mesh size of ginger power of 80 mesh, and volume of anhydrous ethanol as entrainer of 92.46 ml. The optimal extraction rate of 6-gingerol was 3.21%, which was predicted by RSM. [Conclusion] The optimal process of supercritical carbon dioxide extraction of ginger essential oil was identified by singlefactor experiments and response surface method. The present study provides a satisfactory method for purifying GEO from ginger for industrial purpose. 展开更多
关键词 Ginger essential oil (GEO) supercritical carbon dioxide extraction Response surface methodology
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Experimental optimization and mathematical modeling of supercritical carbon dioxide extraction of essential oil from Pogostemon cablin 被引量:3
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作者 Kangning Xiong Yun Chen Shuai Shen 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2019年第10期2407-2417,共11页
The supercritical carbon dioxide extraction was applied to obtain essential oil from Pogostemon cablin in this work.Effect of extraction parameters including temperature,pressure,extraction time and particle size on e... The supercritical carbon dioxide extraction was applied to obtain essential oil from Pogostemon cablin in this work.Effect of extraction parameters including temperature,pressure,extraction time and particle size on extraction yield was investigated,and the response surface methodology with a Box–Behnken Design was used to achieve the optimized extraction conditions.The maximum yield of essential oil was 2.4356%under the conditions of extraction temperature 47°C,pressure 24.5 MPa and extraction time 119 min.Moreover,based on the Brunauer–Emmett–Teller theory of adsorption,a mathematical modeling was performed to correlate the measured data.The model shows a function relationship between extraction yield and time by a simple equation with three significantly adjustable parameters.These model parameters have been optimized through simulated annealing algorithm.The predicted data from the mathematical model show a good agreement with the experimental data of the different extraction parameters. 展开更多
关键词 supercritical carbon dioxide extraction Pogostemon cablin Response surface METHODOLOGY MATHEMATICAL modeling SIMULATED ANNEALING algorithm
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Metal Ions Extraction with Glucose Derivatives as Chelating Reagents in Supercritical Carbon Dioxide 被引量:3
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作者 Guo Chen YANG Hai Jian YANG 《Chinese Chemical Letters》 SCIE CAS CSCD 2006年第11期1489-1492,共4页
A series of glucose derivatives have been used as chelating reagents to extract metal ions in supercritical carbon dioxide. With perfluoro-l-octanesulfonic acid tetraethylammonium salt as additive, glucose derivatives... A series of glucose derivatives have been used as chelating reagents to extract metal ions in supercritical carbon dioxide. With perfluoro-l-octanesulfonic acid tetraethylammonium salt as additive, glucose derivatives were selective for Sr^2+ and Pb^2+ extraction in supercritical carbon dioxide. 展开更多
关键词 supercritical carbon dioxide metal ions extraction glucose derivatives selectivity.
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Supercritical Carbon Dioxide Extraction of Andrographolide from Andrographis paniculata: Effect of the Solvent Flow Rate, Pressure, and Temperature 被引量:3
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作者 A.C. Kumoro Masitah Hasan 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2007年第6期877-883,共7页
Andrographis paniculata Nees has been extensively used for traditional medicine and help against fever dysentery, diarrhoea, inflammation, and sore throat. In this study, andrographolide, the main component of this pl... Andrographis paniculata Nees has been extensively used for traditional medicine and help against fever dysentery, diarrhoea, inflammation, and sore throat. In this study, andrographolide, the main component of this plant was extracted from the leaves of A. paniculata using supercritical carbon dioxide. The operating pressures were varied from 7.50 to 20MPa, the temperatures were varied from 30℃ to 60℃, and the flow rates were varied from 0.5 to 4ml.min^-1. The best extraction condition occurred at 10MPa, 40℃, and a flow rate of 2ml.min^-1 for a 3g sample of A. paniculata ground-dried leaves. The measured extraction rate was found to be about 0.0174g of andrographolide per gram of andrographolide present in the leaves per hour of operation. The future studies must focus on the interaction between the various operating parameters such as temperature, pressure, and flow rate of supercritical carbon dioxide. 展开更多
关键词 supercritical carbon dioxide extraction ANDROGRAPHOLIDE Andrographis paniculata
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Response Surface Optimization of Nigella glandulifera Freyn Seed Oil Yield by Supercritical Carbon Dioxide Extraction 被引量:3
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作者 ZHANG Jun-ping HOU Xi-lin +2 位作者 YU Tian LI Ying DONG Hai-yan 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2012年第1期151-158,共8页
Supercritical carbon dioxide (SC-CO2) extraction was employed to extract oil from Nigella glandulifera Freyn seed in this study. Response surface methodology (RSM) was applied to evaluate the effects of the proces... Supercritical carbon dioxide (SC-CO2) extraction was employed to extract oil from Nigella glandulifera Freyn seed in this study. Response surface methodology (RSM) was applied to evaluate the effects of the process parameters (pressure, temperature, and CO2 flow rate) on oil yield of N. glandulifera seed. A Box-Behnken design was used to optimize the extraction parameters. The analysis of variance indicated that the linear coefficients of pressure and CO2 flow rate, the quadratic term coefficients of pressure and temperature and the interactions between pressure and temperature, as well as temperature and CO2 flow rate, had significant effects on the oil yield (P〈0.05). The optimal conditions to obtain the maximum oil yield from N. glandulifera seed were pressure 30.84 MPa, temperature 40.57°C, and CO2 flow rate 22.00 L h-1. Under these optimal conditions, the yield of oil was predicted to be 38.19%. The validation experiment results agreed with the predicted values. The fatty acid composition of N. glandulifera seed oil extracted using SC-CO2 was compared with that of oil obtained by Soxhlet method. The results showed that the fatty acid compositions of oil extracted by the two methods were similar. Identification of oil compounds with gas chromatography-mass spectrometry (GC-MS) showed that the contents of unsaturated fatty acids linoleic acid (48.30%), oleic acid (22.28%) and saturated fatty acids palmitic acid (16.65%), stearic acid (4.17%) were the most abundant fatty acids in seed oil from N. glandulifera. 展开更多
关键词 supercritical carbon dioxide extraction Nigella glandulifera Freyn seed oil response surface methodology gas chromatography-mass spectrometry fatty acids
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Kinetics of Reactive Extraction of Nd from Nd2O3 with TBP-HNO3 Complex in Supercritical Carbon Dioxide 被引量:3
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作者 朱礼洋 段五华 +1 位作者 徐景明 朱永 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2009年第2期214-218,共5页
The process based on supercritical fluid extraction for reprocessing of the spent nuclear fuel has some remarkable advantages over the plutonium-uranium extraction(PUREX) process.Especially,it can minimize the generat... The process based on supercritical fluid extraction for reprocessing of the spent nuclear fuel has some remarkable advantages over the plutonium-uranium extraction(PUREX) process.Especially,it can minimize the generation of secondary waste.Dynamic reactive extraction of neodymium oxide(Nd2O3) in supercritical carbon dioxide(SC-CO2) containing tri-n-butyl phosphate-nitric acid(TBP-HNO3) complex was investigated.Temperature showed a positive effect on the extraction efficiency,while pressure showed a negative effect when the unsaturated TBP-HNO3 complex was employed for the dynamic reactive extraction of Nd2O3 in SC-CO2.Both temperature and pressure effects indicated that the kinetic process of the reactive extraction was controlled by the chemical reaction.A kinetic model was proposed to describe the extraction process. 展开更多
关键词 supercritical carbon dioxide KINETICS reactive extraction TBP-HNO3 complex ND2O3
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Supercritical Fluid Carbon Dioxide in the Extraction of Lanolin and Its Alcohol
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作者 林苗 陈小立 杨勇 《Journal of Donghua University(English Edition)》 EI CAS 2003年第1期105-108,共4页
The use of supercritical fluid carbon dioxide (SFCO2) in extraction of lanolin and its alcohol is superior to the conventional solvent extraction method. Its distinctive advantages include high extractive ratio, nonto... The use of supercritical fluid carbon dioxide (SFCO2) in extraction of lanolin and its alcohol is superior to the conventional solvent extraction method. Its distinctive advantages include high extractive ratio, nontoxic and nonflammable solvents, and minimal by -product pollution. The resulting refined lanolin and its alcohol have light color and little odor, and can be used as raw materials for high grade cosmetic products. 展开更多
关键词 supercritical fluid carbon dioxide (SF - CO_2) extraction LANOLIN lanolin alcohol acid value iodine value.
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Separation of Molybdenum Isotopes at Supercritical Fluid Extraction with Carbon Dioxide in a Vertical Gradient Field of Temperatures
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作者 Boris Viktorovich Borts Stella Fedorovna Skoromnaya Viktor Ivanovich Tkachenко 《Open Journal of Metal》 2020年第1期1-15,共15页
Separation of molybdenum isotope complexes by supercritical fluid extraction (SFE) with carbon dioxide was studied experimentally. The extraction of molybdenum isotope complexes was carried out in the updated extracti... Separation of molybdenum isotope complexes by supercritical fluid extraction (SFE) with carbon dioxide was studied experimentally. The extraction of molybdenum isotope complexes was carried out in the updated extraction chamber (reactor) of the SFE-U installation, which provided an initial pressure of P ≤ 20 MPa at constant temperatures of the upper T1 = 35&deg;C and bottom T2 = 45&deg;C flanges. The device, through which the eluent was discharged, involved a set of four thin tubes of different lengths located inside the reactor. The axes of the tubes and the reactor are parallel and the tubes are equally spaced circumferentially inside the reactor. The extract was removed from each tube through channels isolated from each other and located in the bottom flange with cylindrical expansion, in which several layers of filter paper were placed. After passing through the filters the extract entered a restrictor designed to remove the eluent from the reactor. The initial pressure of carbon dioxide and the holding time of the extract were specified in the experiments. The level of the eluent sampling was set by the lengths of the tubes depending on the reactor height. A method of producing molybdenum complexes was described. It was experimentally shown that at an initial pressure of 20 MPa and a given holding time a difference from the natural content of Mo isotopes for given heights of extract sampling depending on the reactor height was observed in extracts removed through filters. The ranges of deviation of the content of molybdenum isotopes in extracts from natural one were determined. 展开更多
关键词 carbon dioxide supercritical FLUIDS extraction MOLYBDENUM ISOTOPES SEPARATION
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Supercritical Carbon Dioxide Extraction of Organic Matter from Petroleum Source Rocksand Its Implications
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作者 沈忠民 周光甲 +2 位作者 李辉祥 苗得玉 李佩珍 《Chinese Journal Of Geochemistry》 EI CAS 1996年第4期324-330,共7页
Organic matter was experimentally extracted by supercritical fiuids (CO2 +1% isopropanol) from petroleum source rocks of different thermo-maturities at different buried depths in the same stratigraphic unit in the D... Organic matter was experimentally extracted by supercritical fiuids (CO2 +1% isopropanol) from petroleum source rocks of different thermo-maturities at different buried depths in the same stratigraphic unit in the Dongying Basin. The results show that supercritical fluid extraction (SFE) is more effective than Soxhlet extraction (SE), with higher amounts and greater varieties of hydrocarbons and soluble organic matter becoming extractive. The supercritical CO2 extraction is therefore considered more valuable in evaluation of petroleum source rocks and oil resources, particularly those of immature types. 展开更多
关键词 石油 有机物 岩石 二氧化碳 未成熟油 超临界流体
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Supercritical Equilibrium Data of the Systems Carbon Dioxide—Linalool and Carbon Dioxide—Orange Essential Oil
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作者 Claudio Capparucci Sara Frattari Fausto Gironi 《American Journal of Analytical Chemistry》 2013年第12期763-770,共8页
In this paper experimental equilibrium data on the system supercritical CO2-orange essential oil and the system supercritical CO2-linalool are reported at 323.15 K and 343.15 K, for pressures in the ranges of 7.6-13.5... In this paper experimental equilibrium data on the system supercritical CO2-orange essential oil and the system supercritical CO2-linalool are reported at 323.15 K and 343.15 K, for pressures in the ranges of 7.6-13.5 MPa. The behavior of the system supercritical CO2-orange essential oil was represented by means of thermodynamic model, based on Peng-Robinson equation of state. To this aim the orange essential oil was represented by a mixture of limonene, linalool and β-caryophyllene, selected to represent the classes of monoterpenes, oxygenated terpenes and sesquiterpenes respectively. The model uses only regression parameters calculated from binary sub-systems, CO2-limonene and CO2-β-caryophyllene (taken from literature) and CO2-linalool (calculated from the fitting of original data reported in the present work) thus being predictive with respect to the multicomponent mixture. 展开更多
关键词 supercritical extraction carbon dioxide ORANGE Essential Oil LINALOOL Phase EQUILIBRIUM
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Separation of Biomass Pyrolysis Oil by Supercritical CO2 Extraction 被引量:2
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作者 Jinghua Wang Hongyou Cui +4 位作者 Shuqin Wei Shuping Zhuo Lihong Wang Zhihe Li Weiming Yi 《Smart Grid and Renewable Energy》 2010年第2期98-107,共10页
Supercritical CO2 extraction was employed to separate simulated and real bio-oils. Effects of extraction pressure, temperature and adsorbents on distribution coefficient (or enrichment coefficient) of five representat... Supercritical CO2 extraction was employed to separate simulated and real bio-oils. Effects of extraction pressure, temperature and adsorbents on distribution coefficient (or enrichment coefficient) of five representative compounds were investigated using a simulated bio-oil, which was composed of acetic acid (AC), propanoic acid (PA), furfural (FR), acetylacetone (AA) and 2-methoxyphenol (MP). The distribution coefficients of AA, FR and MP between super-critical CO2 phase and liquid phase were bigger than 1.5, while those of AC and PA characteristic of relatively strong polarity were less than 1. Temperature and pressure also had impacts on the distribution coefficients of AA, FR and MP, especially remarkable for AA. The extraction of simulated bio-oil spiked on three adsorbents shows that adsorbents influence extraction efficiency and selectivity by changing intermolecular forces. High extraction pressure and relative low temperature are beneficial to reduce the water content in the extract. In addition, the feasibility of supercritical CO2 extraction of real bio-oil was examined. After extraction in the extraction fraction total ketones increased from 14.1% to 21.15~25.40%, phenols from 10.74% to 31.32~41.25%, and aldehydes from 1.92% to 3.95~8.46%, while the acids significantly dropped from 28.15% to 6.92~12.32%, and water from 35.90% to 6.64~4.90%. In view of extraction efficiency, the optimal extraction temperature was determined to be 55℃. Extraction efficiency of the real bio-oil increased with rising pressure. The maximal extraction efficiency of real bio-oil on water-free basis could reach to 88.6%. After scCO2 extraction, the calorific value and stability of the extract fraction evidently increased and the acidity slight decreased with nearly 100% volatility below 140℃, suggesting potentially applicable as substitute for engine fuel. 展开更多
关键词 supercritical extraction SIMULATED BIO-OIL ADSORBENT carbon dioxide
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超临界CO_2萃取-分子蒸馏对白术挥发油的提取分离和GC-MS分析 被引量:47
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作者 张忠义 王鹏 +1 位作者 雷正杰 吴惠勤 《分析测试学报》 CAS CSCD 北大核心 2003年第4期61-64,共4页
用超临界CO2 萃取技术提取白术挥发油 ,然后用分子蒸馏对所得的萃取物进行精分离 ,得到蒸出物 ;超临界萃取物收率为2.42 % (w) ,分子蒸馏蒸出物收率26.3% (w) ;对超临界萃取物和分子蒸馏蒸出物分别进行GC -MS分析 ,结果超临界萃取物检测... 用超临界CO2 萃取技术提取白术挥发油 ,然后用分子蒸馏对所得的萃取物进行精分离 ,得到蒸出物 ;超临界萃取物收率为2.42 % (w) ,分子蒸馏蒸出物收率26.3% (w) ;对超临界萃取物和分子蒸馏蒸出物分别进行GC -MS分析 ,结果超临界萃取物检测出33个化合物 ,分子蒸馏蒸出物检测出27个化合物 ,主要成分均为2,7_二甲氧基_3,6_二甲基萘、γ_芹子烯、大根香叶烯等 。 展开更多
关键词 超临界CO2 超临界萃取 分子蒸馏 白术 挥发油 提取 分离 gc-ms分析 气相色谱-质谱法 二氧化碳 中草药
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广藿香超临界CO_2萃取产物的GC-MS分析 被引量:15
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作者 黄丽莎 吴惠勤 +4 位作者 张桂英 肖润 黄芳 王鹏 张忠义 《分析测试学报》 CAS CSCD 北大核心 2001年第4期79-81,共3页
采用超临界CO2 流体萃取技术从广藿香中提取出挥发油 ,挥发油得率为2.97 %(w)。采用GC -MS分离鉴定其化学组成 ,以面积归一化法测定其相对含量。从广藿香叶挥发油中鉴定出24个化合物 ,其中以广藿香醇 (48.8 % )、δ_愈创木烯 (15.2 % )... 采用超临界CO2 流体萃取技术从广藿香中提取出挥发油 ,挥发油得率为2.97 %(w)。采用GC -MS分离鉴定其化学组成 ,以面积归一化法测定其相对含量。从广藿香叶挥发油中鉴定出24个化合物 ,其中以广藿香醇 (48.8 % )、δ_愈创木烯 (15.2 % )、α_愈创木烯(15.3 %) 展开更多
关键词 广藿香 超临界萃取 气相色谱-质谱 成分分析 二氧化碳 植物药
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超临界CO_2萃取连翘挥发油的正交试验和GC-MS分析 被引量:44
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作者 王鹏 张忠义 吴惠勤 《分析测试学报》 CAS CSCD 北大核心 2002年第4期34-37,共4页
采用正交试验法对超临界CO2 萃取连翘挥发油的条件进行了研究 ;结果显示最佳萃取条件为萃取压力30MPa ,萃取温度35℃ ,解析压力6.7MPa,解析温度50℃ ,粉碎度0.55mm ;按对结果的影响大小依次排列为萃取温度 ,粉碎度 ,萃取压力 ,解析压力 ... 采用正交试验法对超临界CO2 萃取连翘挥发油的条件进行了研究 ;结果显示最佳萃取条件为萃取压力30MPa ,萃取温度35℃ ,解析压力6.7MPa,解析温度50℃ ,粉碎度0.55mm ;按对结果的影响大小依次排列为萃取温度 ,粉碎度 ,萃取压力 ,解析压力 ,解析温度 ;用气相色谱 -质谱联用技术测定了最佳萃取条件所得连翘挥发油的化学成分 ,从中鉴定出21种成分 ,并测定了其相对含量 ,主要成分为α_蒎烯、β_蒎烯、萜品醇_4、α_萜品醇、苯甲醇等。 展开更多
关键词 超临界萃取 连翘 挥发油 正交试验 gc-ms 分析 二氧化碳 气相色谱-质谱法 植物药
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超临界CO_2萃取石菖蒲有效成分的GC-MS分析 被引量:12
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作者 吴惠勤 张桂英 +2 位作者 曾莉 张忠义 雷正杰 《分析测试学报》 CAS CSCD 2000年第6期70-71,共2页
采用超临界CO2流体萃取技术从石菖蒲中萃取分离挥发油,用气相色谱-质谱联用技术测定其化学成分,从中鉴定出26种成分,并测定了其相对含量,主要成分为:顺-细辛脑、反-细辛脑、绿叶烯、石竹烯、蛇麻烯、甲基丁子香酚、榄香素... 采用超临界CO2流体萃取技术从石菖蒲中萃取分离挥发油,用气相色谱-质谱联用技术测定其化学成分,从中鉴定出26种成分,并测定了其相对含量,主要成分为:顺-细辛脑、反-细辛脑、绿叶烯、石竹烯、蛇麻烯、甲基丁子香酚、榄香素、顺-罗勒烯等。 展开更多
关键词 石菖蒲 超临界萃取 挥发油 gc-ms 二氧化碳
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腊梅花精油超临界CO_2萃取及GC-MS分析 被引量:13
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作者 司辉清 沈强 庞晓莉 《食品科学》 EI CAS CSCD 北大核心 2010年第2期134-137,共4页
为了研究腊梅花精油超临界CO2萃取的最佳工艺参数,鉴定腊梅花精油的化学成分,采用正交试验方法,以腊梅花精油萃取率为指标,对影响超临界CO2萃取腊梅花精油的主要因素进行试验,并用气相色谱-质谱联用技术对精油化学成分进行分析。结果表... 为了研究腊梅花精油超临界CO2萃取的最佳工艺参数,鉴定腊梅花精油的化学成分,采用正交试验方法,以腊梅花精油萃取率为指标,对影响超临界CO2萃取腊梅花精油的主要因素进行试验,并用气相色谱-质谱联用技术对精油化学成分进行分析。结果表明:超临界CO2萃取腊梅花精油各主要因素的最佳工艺参数分别为压力30MPa、温度40℃、时间3.0h、CO2流量25kg/h,在此条件下的精油萃取率最高为(1.18±0.02)%。腊梅花精油经气相色谱-质谱联用仪鉴定出57个化学成分,其中醇类含量最高,占总含量的67.30%,其次是酯类占15.19%,萜烯类占10.90%,其他类占6.61%。推测醋酸苯甲酯、醋酸冰片酯、邻苯二甲酸二丁酯等可能是腊梅花香型的关键成分。 展开更多
关键词 腊梅花 精油 超临界CO2萃取 gc-ms
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超临界CO_2萃取韭菜籽油成分的GC-MS分析 被引量:16
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作者 马志虎 侯喜林 汤兴利 《西北植物学报》 CAS CSCD 北大核心 2010年第2期412-416,共5页
以索氏提取法为对照,采用超临界二氧化碳(SC-CO2)萃取韭菜籽油,气相色谱-质谱联用技术(GC-MS)对韭菜籽油成分进行分析,NIST 02质谱数据库对其进行分析和鉴定。结果表明,SC-CO2萃取压力为22.25 MPa、温度为40.40℃条件下萃取86.7 min时,... 以索氏提取法为对照,采用超临界二氧化碳(SC-CO2)萃取韭菜籽油,气相色谱-质谱联用技术(GC-MS)对韭菜籽油成分进行分析,NIST 02质谱数据库对其进行分析和鉴定。结果表明,SC-CO2萃取压力为22.25 MPa、温度为40.40℃条件下萃取86.7 min时,萃取得率为17.52%,共分离鉴定出17种物质,其中,饱和脂肪酸以棕榈酸(6.25%)为主,占脂肪酸总量的9.05%;不饱和脂肪酸主要是亚油酸(69.71%)和油酸(19.53%),占脂肪酸总量的90.50%。采用索氏提取得率为16.50%,共鉴定出10种物质,饱和脂肪酸以棕榈酸(7.22%)为主,占总脂肪酸量的9.84%;不饱和脂肪酸主要是亚油酸(69.34%)和油酸(20.12%),不饱和脂肪酸占脂肪酸总量的90.16%。另外SC-CO2萃取韭菜籽油还检出单不饱和脂肪酸7-棕榈烯酸、角鲨烯和β-谷甾醇。 展开更多
关键词 SC-CO2 萃取 韭菜籽 gc-ms
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超临界CO_2萃取樱桃仁油及GC-MS分析 被引量:14
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作者 石珂心 赵武奇 +1 位作者 谷如祥 张文婷 《中国粮油学报》 EI CAS CSCD 北大核心 2016年第1期60-64,69,共6页
以樱桃仁为原料,利用超临界CO2流体萃取樱桃仁油,在单因素试验的基础上,采用Box-Behnken设计方法,研究萃取压力、萃取时间、萃取温度及其交互作用对樱桃仁油得率的影响,确定了超临界CO_2流体萃取樱桃仁油的最佳工艺参数,并利用气相色谱... 以樱桃仁为原料,利用超临界CO2流体萃取樱桃仁油,在单因素试验的基础上,采用Box-Behnken设计方法,研究萃取压力、萃取时间、萃取温度及其交互作用对樱桃仁油得率的影响,确定了超临界CO_2流体萃取樱桃仁油的最佳工艺参数,并利用气相色谱-质谱(GC-MS)分析了樱桃仁油的脂肪酸组成。结果表明,超临界CO_2流体萃取樱桃仁油的最佳工艺参数为萃取压力43 MPa、萃取时间199 min、萃取温度44℃、装料量35 g,在此条件下,樱桃仁油的得率为(51.41±0.45)%。GC-MS分析表明,樱桃仁油的主要脂肪酸成分是油酸(52.55%),亚油酸(29.93%),棕榈酸(9.52%),硬脂酸(3.93%)。 展开更多
关键词 超临界CO2萃取 樱桃仁油 响应面分析 气相色谱-质谱
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山芹菜籽精油化学组成的GC-MS分析 被引量:10
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作者 孙广仁 刁绍起 姚大地 《东北林业大学学报》 CAS CSCD 北大核心 2009年第7期102-103,共2页
为了研究山芹菜(Spuriopimpinnella brachycarpa(Kom.)kitagawa)籽精油的化学组成,采用超临界CO2流体萃取法(SFE-CO2)与水蒸气蒸馏法(SDE)提取了山芹菜籽中的挥发油,采用气相色谱质谱联用仪(GC-MS)分别对超临界油与水蒸气油的挥发性成... 为了研究山芹菜(Spuriopimpinnella brachycarpa(Kom.)kitagawa)籽精油的化学组成,采用超临界CO2流体萃取法(SFE-CO2)与水蒸气蒸馏法(SDE)提取了山芹菜籽中的挥发油,采用气相色谱质谱联用仪(GC-MS)分别对超临界油与水蒸气油的挥发性成分进行了分析,同时对SFE-CO2油进行了甲酯化,采用GC-MS分析了脂肪酸组成。结果表明:从SFE-CO2油中分离出28种组分,保留时间4~17min;从SDE油中分离出16个组分,保留时间4~10min;对SFE-CO2油甲酯化后的分析结果表明,SFE-CO2油中含有棕榈酸、硬脂酸、油酸和亚油酸4种脂肪酸。表明SFE-CO2方法不仅能够萃取如脂肪酸乙酯类沸点较高的挥发性成分,还能提取难挥发的脂肪酸类化合物。 展开更多
关键词 山芹菜籽 精油 超临界二氧化碳流体萃取 水蒸气蒸馏 GC—MS
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