Isolation techniques of linalool from essential oil in Cinnamomum caphora leaf

In order to study the isolation effect of linalool in essential oil of Cinnamomum caphora leaf, taking self-made essential oil in C. caphora leaf as materials for isolating linalool, effects of vacuum degree and refl ux ratio on yield and purity of linalool were researched, and it was compared with market essential oil in C. caphora(CK). The results show that when the vacuum degree is 35-40 mmHg and the refl ux ratio is 4 ∶ 1, the isolation effect of linalool from essential oil of C. caphora leaf is better through rectifi cation. In the condition of isolation, the yield of linalool is 86.73% and content of linalool is over 98%, which are higher than CK.