The Extraction of Linalool from Coriander Seeds by Steam Distillation

Abstract

Linalool is crucial chemical raw material which is widely used in food flavoring, perfumery cosmetic and pharmaceutical industry. The natural linalool from coriander seeds volatile oil was extracted by steam distillation method and analyzed by Gas Chromatography-Mass Spectrometry (GC-MS). Effects of pretreatment (smash, testa chipping, soak and boiling), solid-liquid ratio (weight of coriander seeds (g): volume of deionized water (mL)) and the extractant (ethyl acetate and ether) on natural linalool extracted from the volatile oil were studied. The result shows that when the coriander seeds were smashed and soaked for 3 hours, the ratio of solid-liquid was 1:7, the time of distillation was 4h and the extractant was ether, natural linalool of the volatile oil was higher than the others, and the content was about 13.45g/kg. These results lay a foundation for the extraction of linalool from coriander seeds by steam distillation.