微波辅助山苍子核仁油提取工艺研究  

Study on Microwave-assisted Extraction of Litsea cubeba Kernel Oil

作　　者：许朝阳 王宗德[2] 侯天宇 罗海 黎冬明[1,2] XU Zhaoyang;WANG Zongde;HOU Tianyu;LUO Hai;LI Dongming(College of Food Science and Engineering,Jiangxi Agricultural University,Nanchang 330045,China;College of Forestry/East China Woody Fragrance and Flavor Engineering/Research Center of National Forestry and Grassland Administration/Camphor Engineering Research Center of NFGA,Jiangxi Agricultural University,Nanchang 330045,China)

机构地区：[1]江西农业大学食品科学与工程学院,江西南昌330045 [2]江西农业大学林学院/国家林草局木本香料(华东)工程技术研究中心/国家林草局/江西省樟树工程技术研究中心,江西南昌330045

出　　处：《生物灾害科学》2023年第2期216-223,共8页Biological Disaster Science

基　　金：油料脂质化学与营养湖北省重点实验室开放课题(202104);江西省科技计划项目(20192BBFL60014)。

摘　　要：【目的】以山苍子核为原料,经粉碎后,采用微波对山苍子核粉进行处理,以石油醚为溶剂进行提取,通过单因素试验考察微波处理时间、料液比(山苍子核仁粉:石油醚)、提取温度和提取时间对山苍子核仁油(LCKO)提取得率的影响。【方法】采用L9(3)4正交试验设计对其工艺进行了优化。【结果】获得了较佳的提取工艺为:微波处理时间为90 s,料液比为1:14(g/mL),提取温度为85℃,提取时间为60 min,在此条件下LCKO的提取得率为42.23%。采用国标法和气相色谱技术对LCKO的理化指标和化学组成进行了检测和分析。【结论】结果表明:LCKO性质稳定,主要由月桂酸(52.27%)、癸酸(19.52%)和月桂烯酸(13.95%)组成,其中饱和脂肪酸占脂肪酸总量的75.76%,中碳链脂肪酸(C10-C12)占脂肪酸总量的88.12%。[Objective]The crushed Litsea cubeba seeds were extracted with microwave assistance under the petroleum ether solvent for the production of Litsea cubeba kernel oil(LCKO).The effects of microwave treatment time,solid-liquid ratio(Litsea cubeba seed powder:petroleum ether),extraction temperature,and extraction time were investigated by single factor experiment.[Method]The L9(3)4 orthogonal experiment design was used to optimize the extraction process.[Result]The optimal extraction process was obtained as follows:the microwave treatment time was 90 s,the solid-liquid ratio was 1:14(g/mL),the extraction temperature was 85℃,and the extraction time was 60 min,and thus the extraction yield of LCKO was 42.23%.Then the physicochemical properties and the chemical composition of LCKO were analyzed by using Chinese standard methods and gas chromatography technology,respectively.[Conclusion]The results showed that the properties of LCKO was stable,and the composition of fatty acids is lauric acid(52.27%),decanoic acid(19.52%)and lauroleic acid(13.95%).And the composition proportion of saturated fatty acids and the medium chain fatty acids(C10-C12)was 75.76%and 88.12%,respectively.

关 键 词：微波辅助提取 山苍子核仁油 工艺优化 油脂性质 

分 类 号：TS224.2[轻工技术与工程—粮食、油脂及植物蛋白工程]