林产化学与工业2025，Vol.45Issue(2)：26-32,7.DOI:10.20195/j.issn.0253-2417.2024184
浸渍辅助蒸汽提取对芳樟叶精油成分及活性的影响
Influence of Dipping Pretreatment Assisted Steam Distillation for Essential Oils Extraction From Linalool Chemotype of Camphora officinarum on Constructions and Activities
摘要
Abstract
The essential oil of Camphora officinarum leaves was extracted by dipping pretreatment(DP)assisted steam distillation,and the effects of impregnation process conditions and impregnation times on the composition,antioxidant properties and tyrosinase inhibition activities were studied.The optimum impregnation process of C.officinarum essential oil was as follows:the ratio of impregnation material to liquid was 1∶10(g∶mL),the dipping temperature was 80 ℃,the dipping time was 2 h and the impregnation solution was filtered and directly obtained by steam distillation.The main components of essential oil(DP-1-DP-4)obtained by distillation after 1-4 times of soaking pretreatment,essential oil(RM)obtained by direct distillation of C.officinarum leaves after 4 times of impregnation and traditional steam distillation essential oil(CE)were compared.It was found that the content of linalool in DP-1-DP-3 was higher than that in CE,while DP-4 and RM were lower than that in CE.The chemical compositions of CE and DP-1-DP-4 were similar,mainly including monoterpenes(M),oxygenated monoterpenes(OM),sesquiterpenes(S)and oxygenated sesquiterpenes(OS).However,the chemical compositions of RM were significantly different.The results of the antioxidant activity showed that RM had the highest antioxidant activity,and the semi-inhibitory mass concentration(IC50)value for DPPH free radicals was(37.81±0.50)g/L.The content of linalool in DP-2 essential oil was the highest,with a mass fraction of 96.47％,and it had the best tyrosinase inhibitory activity,with an IC50 value of(236.71±2.27)mg/L.关键词
浸渍辅助/芳樟/精油Key words
dipping pretreatment assisted/Camphora officinarum var.linaloolifera/essential oils分类
化学工程引用本文复制引用
杨海宽,邱凤英,章挺,温世钫..浸渍辅助蒸汽提取对芳樟叶精油成分及活性的影响[J].林产化学与工业,2025,45(2):26-32,7.基金项目
中央财政林业科技推广示范项目(JXTG[2023]01) （JXTG[2023]01）
江西省科学技术厅重大科技研发专项(20203ABC28W016) （20203ABC28W016）
江西省林业局林业科技创新专项(创新专项[2022]6号) （创新专项[2022]6号）
