油樟叶纯露成分分析及不同季节纯露的抑菌活性研究
2021-08-30吴芳杨立艳李莉黄彭魏琴
吴芳 杨立艳 李莉 黄彭 魏琴



摘要 以不同季节(春季、夏季、秋季、冬季)宜宾油樟叶片为研究对象制备纯露,利用GC-MS对油樟纯露的主要成分进行分析,通过抑菌圈、最低抑菌浓度(MIC)和最低杀菌浓度(MBC),研究不同季节纯露对大肠埃希氏菌 (E.coli)、福氏志贺氏菌(S.flexneri)、金黄色葡萄球菌(S.aureus)和肠炎沙门氏菌(S.enteritidis) 的抑菌活性。结果表明,油樟叶纯露中的主要组分为1,8-桉叶油素(57.86%)、α-松油醇(31.74%)和松油烯-4-醇(9.13%);不同季节纯露对4种供试微生物均有明显的抑菌效果,以冬季纯露效果最好;4种供试微生物中,对金黄色葡萄球菌抑制效果最好。油樟纯露作为油樟精油生产副产物,具有一定的开发潜力。
关键词 油樟;纯露;GC-MS;抑菌活性;不同季节
中图分类号 R 285 文献标识码 A
文章编号 0517-6611(2021)16-0190-03
doi:10.3969/j.issn.0517-6611.2021.16.051 开放科学(资源服务)标识码(OSID):
Hydrosol Composition and Antibacterial Activity of Cinnamomum longepaniculatum (Gamble) Leaves from Different Seasons
WU Fang1,2,YANG Li-yan1,3,LI Li1,2 et al (1.Sichuan Oil Camphor Engineering Technology Research Center,Yibin,Sichuan 644000;2.Department of Quality Management and Inspection and Testing,Yibin University,Yibin,Sichuan 644000;3.Key Lab of Aromatic Plant Resources Exploitation and Utilization in Sichuan Higher Education,Yibin University,Yibin,Sichuan 644000)
Abstract The leaves of Cinnamomum longepaniculatum in different seasons (spring,summer,autumn,winter) were used as the research object to prepare pure dew.The main components of Cinnamomum longepaniculatum were analyzed by GC-MS.Through the zone of inhibition,minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC),the antibacterial activity of pure dew in different seasons on E.coli,S.flexneri,S.aureus and S.enteritidis were studied.The results indicated the major metabolites including 1,8-cineole(57.86%),α-terpineol (31.74%) and Terpinene-4-ol (9.13%).The pure dew in different seasons had obvious antibacterial effect on the 4 tested microorganisms,and the pure dew in winter had the best effect.Among the 4 tested microorganisms,the inhibitory effect on Staphylococcus aureus was the best.As a by-product of essential oil of Cinnamomum longepaniculatum production,hydrosol had a certain development potential.
Key words Cinnamomum longepaniculatum; Pure dew;GC-MS;Antibacterial activity;Different seasons
純露是水蒸气蒸馏制取精油时的副产物,其气味较精油柔和,对哺乳动物毒性低,在化妆品行业得到越来越广泛的应用,另外,由于其抗菌和抗氧化性能,在食品工业中应用也越来越受到青睐。油樟[ Cinnamomum longepaniculatum (Gamble) N.Chao ex H.W.Li]是中国四川宜宾的特有资源树种,生长在海拔600~2 000 m的常绿阔叶林中[1-2],其叶片被广泛用于制取油樟精油。油樟油具有抗菌[3-5]、消炎[2]和抗氧化[6-7]等活性,主要用于出口香料和药品的原料,其主要成分为桉树油素(cineole)、松油醇(terpineol)和桧烯(sabinene)等[4]。但在利用水蒸气蒸馏制取精油的过程中,不可避免地会得到许多“蒸馏水”(经冷凝即为纯露),目前常被作为油樟精油生产的废弃物被排放掉。纯露在化妆品行业和食品工业中都有很好的利用,为了充分利用森林资源,有必要对油樟精油生产过程中的“纯露”利用潜力进行研究。……
