Studies were carried out on the transesterification of the Chinese Spicehush （Lindera communis） seed （LCS） oil with methanol for the production of biodiesel. The methyl esters of LCS oil were compared with soybean...Studies were carried out on the transesterification of the Chinese Spicehush （Lindera communis） seed （LCS） oil with methanol for the production of biodiesel. The methyl esters of LCS oil were compared with soybean esters to determine biodiesel fuel performance and properties. The fatty acids content in the seed kernel oil （LKO） and coat oil （LCO） were quantified by gas chromatography and mass spectrometry method （C-C-MS）. LKO contains 95.1% saturated acids （capric, lauric, myristic and palmitic） and 2.3% unsaturated acids （oleic）. LCO contains 24.6% saturated acids （palmitic and stearic） and 73.6% unsaturated acids （oleic, linoleic and palmitoleic）. The kinematic viscosity, cold filter plugging point, cloud point, flash point and cetane index were determined. The methyl esters of LKO had a higher kinematic viscosity and a lower cold filter plugging point value, so it has better performance in cold weather. The biodiesel of LCS oil has fuel properties within the limits prescribed by American （ASTM D 6751-02） standards, except for a slightly lower flash point of LKO biodiesel than that prescribed by these standards （130℃）. Thus, LKO and LCO biodiesel have great potential to be used on a large scale as fuel for diesel engines.展开更多
本文采用GC-MS技术分析了香叶树(Lindera communis Hemsl)叶精油的化学组成,测定了23种成分的结构与相对含量。主要成分为(-)-斯巴醇(22.50％)、1,3,3-三甲基-内-2-降冰片烷醇乙酯(10.06％)、氧化丁香烯(6.74％)和大根香叶烯B(6.71％)...本文采用GC-MS技术分析了香叶树(Lindera communis Hemsl)叶精油的化学组成,测定了23种成分的结构与相对含量。主要成分为(-)-斯巴醇(22.50％)、1,3,3-三甲基-内-2-降冰片烷醇乙酯(10.06％)、氧化丁香烯(6.74％)和大根香叶烯B(6.71％)等。体外对八种人体皮肤真菌或细菌抗菌试验表明,该挥发油具有强大的抗菌活力,MIC值位于0.08～0.8 ml/L之间。展开更多
文摘Studies were carried out on the transesterification of the Chinese Spicehush （Lindera communis） seed （LCS） oil with methanol for the production of biodiesel. The methyl esters of LCS oil were compared with soybean esters to determine biodiesel fuel performance and properties. The fatty acids content in the seed kernel oil （LKO） and coat oil （LCO） were quantified by gas chromatography and mass spectrometry method （C-C-MS）. LKO contains 95.1% saturated acids （capric, lauric, myristic and palmitic） and 2.3% unsaturated acids （oleic）. LCO contains 24.6% saturated acids （palmitic and stearic） and 73.6% unsaturated acids （oleic, linoleic and palmitoleic）. The kinematic viscosity, cold filter plugging point, cloud point, flash point and cetane index were determined. The methyl esters of LKO had a higher kinematic viscosity and a lower cold filter plugging point value, so it has better performance in cold weather. The biodiesel of LCS oil has fuel properties within the limits prescribed by American （ASTM D 6751-02） standards, except for a slightly lower flash point of LKO biodiesel than that prescribed by these standards （130℃）. Thus, LKO and LCO biodiesel have great potential to be used on a large scale as fuel for diesel engines.
文摘本文采用GC-MS技术分析了香叶树(Lindera communis Hemsl)叶精油的化学组成,测定了23种成分的结构与相对含量。主要成分为(-)-斯巴醇(22.50％)、1,3,3-三甲基-内-2-降冰片烷醇乙酯(10.06％)、氧化丁香烯(6.74％)和大根香叶烯B(6.71％)等。体外对八种人体皮肤真菌或细菌抗菌试验表明,该挥发油具有强大的抗菌活力,MIC值位于0.08～0.8 ml/L之间。
