Method for extracting aromatic oil from wild carrot plants in natural conservation area

Abstract

The invention discloses a method for extracting aromatic oil from wild carrot plants in a natural conservation area, and particularly relates to the field of biological separation of natural products.The method comprises the steps of raw material collection, cleaning, chopping, pre-drying, atmospheric distillation, reduced pressure distillation, distillate purification and the like, and can alsocomprise the steps of solution soaking and the like. According to the method, the aromatic oil is extracted by taking the wild carrots which are foreign invasive species in the natural conservation area as raw materials, so that the harm of the wild carrots to the conservation area is eliminated, valuable aromatic oil can be obtained, and two purposes are achieved; aromatic oil is extracted in ananoxic or anaerobic environment, so that damage to double-bond structures in various organic molecules of the aromatic oil is effectively reduced, and the quality of the aromatic oil is improved; andwhole wild carrot plants can be used as raw materials, and aromatic oil in the wild carrot plants is extracted in a classified manner, so that various components in the aromatic oil are fully utilized.

Description

technical field [0001] The invention relates to the technical field of biological separation of natural products, more specifically, the invention relates to a method for extracting aromatic oil from wild carrot plants in nature reserves. Background technique [0002] Wild carrot is a biennial herbaceous plant with a plant height of 15-120 cm. It is distributed in Sichuan, Guizhou, Hubei, Jiangxi, Anhui, Jiangsu, Zhejiang and other provinces in China. It often grows on hillsides, roadsides, wilderness or fields. Wild carrot has high medicinal value, and its fruit can be used as medicine, which has a dilating effect on coronary arteries; it can also extract aromatic oil. [0003] However, wild carrot is a kind of alien invasive plant in the nature reserve. It shows a tendency of accelerating spread in the reserve. It is the most widely distributed species among all invasive species. The number of wild carrots per unit area (1㎡) can reach dozens of plants , there is a tendenc...

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Problems solved by technology

[0006] However, the above method is not suitable for extracting aromatic oil from wild carrots collected in nature reserves as invasive species; it is also impossible to avoid the effect of high temperature oxidation on the double bond structure in various organic molecules of aromatic oil during the extraction process, resulting in the extraction of The quality of the aromatic oil is reduced; it is not possible to use the whole plant of wild carrot as raw material to extract the aromatic oil by classification, so that the various components in the aromatic oil can be fully utilized

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