JPS6442479A - Production of procyanidin - Google Patents
Production of procyanidinInfo
- Publication number
- JPS6442479A JPS6442479A JP19829387A JP19829387A JPS6442479A JP S6442479 A JPS6442479 A JP S6442479A JP 19829387 A JP19829387 A JP 19829387A JP 19829387 A JP19829387 A JP 19829387A JP S6442479 A JPS6442479 A JP S6442479A
- Authority
- JP
- Japan
- Prior art keywords
- procyanidin
- bark
- flavan
- expressed
- formula
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Landscapes
- Pyrane Compounds (AREA)
Abstract
PURPOSE:To efficiently and industrially remarkably significantly obtain a procyanidin useful as a producing raw material for antioxidant for e.g. food or cosmetic, medicine, etc., at a low cost in simple treatment, by extracting a bark in a polar solvent at specific temperature. CONSTITUTION:A bark of coniferous tree such as inner bark of Japanese cedar, hinoli cypress, cherry or spruce is directly dried and then broken into fine piece or fine grain having a proper size using cutting machine, cutting mill, etc., and extracted in a polar solvent such as water at 70-100 deg.C, especially 80-90 deg.C for 0.2-8hr, preferably 1-2hr to give a liquid containing 20-50% of procyanidin expressed by the formula which is dimer - oligomer consisting of 2-30 units of flavan-3-ol or flavan-3,4-diol which is a constitutional unit. The resultant procyanidin-containing liquid, through it can be directly sufficiently used, as necessary is purified by purification such as absorbing method or membrane concentration method to provide the high-quality procyanidin expressed by the formula.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19829387A JPS6442479A (en) | 1987-08-10 | 1987-08-10 | Production of procyanidin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19829387A JPS6442479A (en) | 1987-08-10 | 1987-08-10 | Production of procyanidin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6442479A true JPS6442479A (en) | 1989-02-14 |
Family
ID=16388718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19829387A Pending JPS6442479A (en) | 1987-08-10 | 1987-08-10 | Production of procyanidin |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6442479A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03200781A (en) * | 1989-12-28 | 1991-09-02 | Kikkoman Corp | Production of proanthocyanidin |
| WO1997044407A1 (en) * | 1996-05-23 | 1997-11-27 | Ian Alexander Gilmour | Process for extraction of proanthocyanidins from botanical material |
| US5817299A (en) * | 1996-11-01 | 1998-10-06 | E-L Management Corp. | Non-chemical sunscreen composition |
| WO2003091237A1 (en) * | 2002-04-24 | 2003-11-06 | Toyo Shinyaku Co., Ltd. | Process for producing proanthocyanidine-rich material |
| WO2004080995A1 (en) * | 2003-03-11 | 2004-09-23 | Toyo Shinyaku Co., Ltd. | Process for producing proanthocyanin-rich material |
| US7976877B2 (en) | 2003-11-12 | 2011-07-12 | Oy Arbonova Ab | Use of knotwood extracts |
-
1987
- 1987-08-10 JP JP19829387A patent/JPS6442479A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03200781A (en) * | 1989-12-28 | 1991-09-02 | Kikkoman Corp | Production of proanthocyanidin |
| WO1997044407A1 (en) * | 1996-05-23 | 1997-11-27 | Ian Alexander Gilmour | Process for extraction of proanthocyanidins from botanical material |
| KR100473278B1 (en) * | 1996-05-23 | 2005-08-29 | 켈빈 윈스턴 던컨 | How to extract and isolate proanthocyanidins from plants |
| US5817299A (en) * | 1996-11-01 | 1998-10-06 | E-L Management Corp. | Non-chemical sunscreen composition |
| WO2003091237A1 (en) * | 2002-04-24 | 2003-11-06 | Toyo Shinyaku Co., Ltd. | Process for producing proanthocyanidine-rich material |
| WO2004080995A1 (en) * | 2003-03-11 | 2004-09-23 | Toyo Shinyaku Co., Ltd. | Process for producing proanthocyanin-rich material |
| WO2004080992A1 (en) * | 2003-03-11 | 2004-09-23 | Toyo Shinyaku Co., Ltd. | Process for producing proanthocyanin-rich material |
| WO2004080994A1 (en) * | 2003-03-11 | 2004-09-23 | Toyo Shinyaku Co., Ltd. | Process for producing proanthocyanidin enriched product |
| WO2004080993A1 (en) * | 2003-03-11 | 2004-09-23 | Toyo Shinyaku Co., Ltd. | Process for producing proanthocyanidin-rich material |
| US7976877B2 (en) | 2003-11-12 | 2011-07-12 | Oy Arbonova Ab | Use of knotwood extracts |
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