KR950028778A - Manufacturing method of ginkgo leaf extract - Google Patents

Manufacturing method of ginkgo leaf extract Download PDF

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Publication number
KR950028778A
KR950028778A KR1019940007606A KR19940007606A KR950028778A KR 950028778 A KR950028778 A KR 950028778A KR 1019940007606 A KR1019940007606 A KR 1019940007606A KR 19940007606 A KR19940007606 A KR 19940007606A KR 950028778 A KR950028778 A KR 950028778A
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KR
South Korea
Prior art keywords
yield
organic solvent
ginkgo biloba
leaf extract
ginkgo leaf
Prior art date
Application number
KR1019940007606A
Other languages
Korean (ko)
Inventor
심성보
최외순
Original Assignee
하기주
주식회사 코오롱
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 하기주, 주식회사 코오롱 filed Critical 하기주
Priority to KR1019940007606A priority Critical patent/KR950028778A/en
Publication of KR950028778A publication Critical patent/KR950028778A/en

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Abstract

본 발명은 은행잎으로부터 고수율로 은행잎 엑스를 제조하는 방법에 관한 것으로, 통상의 방법으로 은행잎을 추출하고 클로로필 등의 물질을 유기용매로 제거하여 얻은 추출 수용액 층을 재추출함에 있어서, 수용액 층을 메틸에틸케톤과 아세톤을 적당한 비율로 혼합, 사용하여 추출, 분리하여 유기층을 얻고 이를 통상의 방법으로 처리하여 은행잎 엑스를 보다 고수율로 제조하는 방법을 제공한다.The present invention relates to a method for producing ginkgo biloba extract from ginkgo biloba in high yield, and extracting ginkgo biloba leaves in a conventional manner and re-extracting the aqueous solution layer obtained by removing a substance such as chlorophyll with an organic solvent, the aqueous layer is methyl Ethyl ketone and acetone are mixed in an appropriate ratio, extracted and separated to obtain an organic layer, which is treated in a conventional manner to provide a method for producing ginkgo leaf x in higher yield.

본 발명의 방법은 유기용매의 농축과정에서 낮은 온도로 작업이 가능하므로 열에 의한 분해를 방지할 수 있으며 수율이 통상의 방법에 비하여 높으며 깅콜라이드의 총수율 또한 높은 장점을 갖는다.Since the method of the present invention can be operated at a low temperature in the concentration process of the organic solvent, it is possible to prevent decomposition by heat, and the yield is higher than that of the conventional method, and the total yield of gingkolide is also high.

Description

은행잎 엑스의 제조방법Manufacturing method of ginkgo leaf extract

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

Claims (1)

통상의 방법으로 은행잎을 추출하고 지용성 물질을 제거한 수용액 층을 유기용매로써 재추출하여 통상의 방법으로 은행잎 엑스를 제조함에 있어서, 유기용매로서 수용액 층에 포함된 물의 0.1-1배의 부피비의 메틸에 틸케톤을 투입하고 메틸에틸케톤의 5-30%의 부피비의 아세톤을 첨가하는 것을 특징으로 하는 은행잎 엑스의 제조방법.In preparing a ginkgo leaf extract by a conventional method by extracting a ginkgo leaf by a conventional method and removing the fat-soluble substance with an organic solvent, in an organic solvent of methyl in a volume ratio of 0.1-1 times the volume of water contained in the aqueous layer. A method for producing ginkgo biloba leaf extract, characterized by adding acetyl ketone and adding acetone in a volume ratio of 5-30% of methyl ethyl ketone. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940007606A 1994-04-12 1994-04-12 Manufacturing method of ginkgo leaf extract KR950028778A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940007606A KR950028778A (en) 1994-04-12 1994-04-12 Manufacturing method of ginkgo leaf extract

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940007606A KR950028778A (en) 1994-04-12 1994-04-12 Manufacturing method of ginkgo leaf extract

Publications (1)

Publication Number Publication Date
KR950028778A true KR950028778A (en) 1995-11-22

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019940007606A KR950028778A (en) 1994-04-12 1994-04-12 Manufacturing method of ginkgo leaf extract

Country Status (1)

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KR (1) KR950028778A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100558382B1 (en) * 2002-04-03 2006-03-10 그린텍이십일 주식회사 A method for production of extract from ginkgo biloba l. by supercritical fluid extraction technique

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100558382B1 (en) * 2002-04-03 2006-03-10 그린텍이십일 주식회사 A method for production of extract from ginkgo biloba l. by supercritical fluid extraction technique

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