A kind of preparation method of rosemary extract

A rosemary extract and a technology for the extract are applied in the field of preparation of plant extracts, can solve the problems of complex preparation process, waste of rosemary resources, difficult industrialization, etc., and achieve simple operation, low equipment requirements, and improved utilization rate. Effect
CN107513095BActive Publication Date: 2020-01-31CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
Publication Date
2020-01-31

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Abstract

The invention discloses a preparation method of a rosemary extract. The method comprises the steps of S1, taking rosemary branches and leaves as raw materials and extracting carnosol, carnosic acid and ursolic acid at the same time to obtain an extracting solution I; S2, concentrating the extracting solution I to obtain a concentrated solution; S3, adding water into the concentrated solution for dilution to obtain turbid liquid; S4, treating the turbid liquid by an alkali dissolution process to obtain an extracting solution II and an extract I containing the ursolic acid; S5, treating the extracting solution II by adopting an acid sediment process to obtain an extract II containing the carnosol and the carnosic acid, thus realizing the synchronous extraction and separation of the extract containing the carnosol and the carnosic acid and the extract containing the ursolic acid.
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Description

technical field

[0001] The invention relates to a preparation method of a plant extract, in particular to a preparation method of a rosemary extract. Background technique

[0002] Rosemary (Rosemary), Latin name Rosmarinus officinalis L., Lamiaceae Rosemary plant. Rosemary is planted in large areas in Hunan, Yunnan, Hainan, Henan, Guangxi, Guizhou, Xinjiang, Zhejiang and other provinces. The largest rosemary planting base in China is located in Yuzhou City, Henan Province. In 2012, its standardized planting base and nursery base reached 20,000 mu and 200 mu respectively. The planned planting area of ​​the base is 100,000 mu. As far as Hunan Province is concerned, Yueyang, Changsha, Changde, Hengyang, Huaihua, Xiangxi Autonomous Prefecture and other places have successively established rosemary planting bases, with a total planting area of ​​more than 5,000 mu and an annual output of more than 4,000 tons of fresh rosemary leaves. If this trend continues, my country's rosema...

Claims

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