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Study on variations of content and main constituent of essential oil from stem and leaf of linalool-type Cinnamomum camphora (Linn.) Presl in Guangxi Province.

MO Jian-guang, Yang Yi-lin, Huang ZhiBiao, Xie Yi-xing, Lu AnGen, Lao YanWen, Zhou Xiang, WU You-mei, Pan YanKun, Qin ZiHai

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Abstract

Essential oil from stem and leaf(samples of mixed leaves and old leaves)of linalool-type Cinnamomum camphora(Linn.) Presl was extracted respectively by steam distillation method.The essential oils were analyzed with gas chromatography and GC-MS-DS quantitatively and qualitatively.The results show that content and chemical compositions of essential oil from stem and leaf of linalool-type C.camphora have great difference.The mass fraction of essential oil in leaves(1.39%) is higher than in stem(0.54%);The mass fraction of linalool in leaf essential oil(89.59%) is higher than in stem(74.49%);The mass fraction of camphor in leaf essential oil(0.61%) is lower than in stem(4.34%);The quality of leaf essential oil collected in October(linalool 92.69%,camphor 0.40%) is superior to leaves collected in July(linalool 86.49%,camphor 0.82%).

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What this paper is about

Essential oil from stem and leaf(samples of mixed leaves and old leaves)of linalool-type Cinnamomum camphora(Linn.) Presl was extracted respectively by steam distillation method.The essential oils were analyzed with gas chromatography and GC-MS-DS quantitatively and qualitatively.The results show that content and chemical compositions of essential oil from stem and leaf of linalool-type C.camphora have great difference.The mass fraction of essential oil in leaves(1.39%) is higher than in stem(0.54%);The mass fraction of linalool in leaf essential oil(89.59%) is higher than in stem(74.49%);The mass fraction of camphor in leaf essential oil(0.61%) is lower than in stem(4.34%);The quality of leaf essential oil collected in October(linalool 92.69%,camphor 0.40%) is superior to leaves collected in July(linalool 86.49%,camphor 0.82%).

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Available abstract

Essential oil from stem and leaf(samples of mixed leaves and old leaves)of linalool-type Cinnamomum camphora(Linn.) Presl was extracted respectively by steam distillation method.The essential oils were analyzed with gas chromatography and GC-MS-DS quantitatively and qualitatively.The results show that content and chemical compositions of essential oil from stem and leaf of linalool-type C.camphora have great difference.The mass fraction of essential oil in leaves(1.39%) is higher than in stem(0.54%);The mass fraction of linalool in leaf essential oil(89.59%) is higher than in stem(74.49%);The mass fraction of camphor in leaf essential oil(0.61%) is lower than in stem(4.34%);The quality of leaf essential oil collected in October(linalool 92.69%,camphor 0.40%) is superior to leaves collected in July(linalool 86.49%,camphor 0.82%).

Key concepts: Linalool, Essential oil, Cinnamomum camphora, Camphor, Chemistry, Steam distillation, Botany, Stem-and-leaf display

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Study on variations of content and main constituent of essential oil from stem and leaf of linalool-type Cinnamomum camphora (Linn.) Presl in Guangxi Province. — Research Paper | ScholarLens