• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

ISOLATION AND APPLICATION OF BIOLOGICALLY ACTIVE COMPOUNDS FRON FRESH-WATER MICRO ALGA

Research Project

Project/Area Number 04671300
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field Chemical pharmacy
Research InstitutionNAGOYA CITY UNIVERSITY

Principal Investigator

SAKAKIBARA Jinsaku  NAGOYA CITY UNIVERSITY PROFESSOR, 薬学部, 教授 (70080182)

Co-Investigator(Kenkyū-buntansha) BAGATSU Akito  NAGOYA CITY UNIVERSITY INSTRUCTOR, 薬学部, 助手 (70244572)
Project Period (FY) 1992 – 1993
Project Status Completed (Fiscal Year 1993)
Budget Amount *help
¥2,100,000 (Direct Cost: ¥2,100,000)
Fiscal Year 1993: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 1992: ¥1,400,000 (Direct Cost: ¥1,400,000)
Keywordsfresh-water micro alga / anti-tumor-promoting activity / monohalactosyl diacylhlycerol / digalactosyl diacylglycerol / sulfoquinovosyl diacylglycerol / isoheptadecanoyl / antioxidant / sn-1 selective enzymatic deacylation / フルホキノボシルジアシルグリセロール / イソヘプヌデカノイル基 / sn-1位特異的酵素脱アシル化反応 / Phormiclium tenue / Anabaena flos aquae f.-flos aquae / 9R-ヒドロキシ脂肪酸
Research Abstract

We searched for biologically active compounds from micro alga. We found mono-and digalactosyl diacylglycerols (MGDG and DGDG, respectively) from phormidium tenue showed antitumor-promoting activith in vitro, and isolated 9 MGDGs and 8 DGDGs. Two of these DGDGs indicated the activith in vivo. We attempted systhesis of MGDG to know the relation between the activity and acyl groups in the molecules. It was clarfiied thant the MGDGs with oleoyl group shwed much more active and less toxic than natural MGDGs and DGDGs.
We isolated 5 sufoquinovosyl glycerols (SQDGs) including 2 novel ones from chlorellavurugaris, which was purified by HPLC under basic condition. One of these are the first example having a isoheptadecanoyl group in glycolipids/. We clarified that isoheptadecanoyl group was also included in MGDG and DGDG form chlorella vurugaris.
We developed sn-1-specific enzymatic deacylation of phosphokipids using commercially available lipase. This is very practical and economical method to get certain amount of lyso phospholipids, or to lnow acyl group at sn-2 position of phospholipids.

Report

(3 results)
  • 1993 Annual Research Report   Final Research Report Summary
  • 1992 Annual Research Report
  • Research Products

    (11 results)

All Other

All Publications (11 results)

  • [Publications] T.Morimoto,N.Murakami,A.Nagatsu,J.Sakakibara: "Regiospecific deacetylation on glycerophospholipids by use of Mucor javanicus lipase." Tetrahedron Letters. 34. 2487-2490 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] N.Murakami,H.Shirahashi,A.Nagatsu,J.Sakakibara: "Studies on glycolipids VI.New acyl-distributed glyceroglycolipids from the nitrogen-fixing cyanobacterium Anabaena flos-aquae f・flos-aquae." Chem.Pharm.Bull.41. 1177-1179 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] T.Morimoto,N.Murakami,A.Nagatsu,J.Sakakibara: "Studies on glycolipids VII.Isolation of two new sulfoquinovosyl diacyl-glycerolo from the green alga Chlorella vulgaris." Chem.Pharm.Bull.41. 1545-1548 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] H.Shirahashi,N.Murakami,M.Watanabe,A.Nagatsu,J.Sakakibara et al.: "Isolation and identification of anti-tumor-promoting principles from the fresh-water cyanobacterium Phormidium tenue." Chem.Pharm.Bull.41. 1664-1666 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] N.Yamada,N.Murakami,T.Morimoto,J.Sakakibara: "Auto-growth inhibitory substance from the fresh-water cyanobacterium Phormidium tenue." Chem.Pharm.Bull.41. 1863-1865 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] T.Morimoto,N.Murakami,A.Nagatsu,J.Sakakibara: "Regiospecific deacetylation on glycerophospholipids by use of Mucor javanicus lipase." Tetrahedron Letters. 34. 2487-2490 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] N.Murakami,H.Shirahashi,A.Nagatsu,J.Sakakibara: "Stadies on glycolipids VI.New acyl-distributed glyceroglycolipids from the nitrogen-fixing cyanobacterium Anabaena flos-aquae f.flos-aquae." Cham.Pharm.Bull.41. 1177-1179 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] T.Morimoto,N.Murakami,A Nagatsu,J Sakakibara: "Studies on glycolipids VII.Isolation two new sulfoquinovosye diacyl-glycero from the green alga chlorella valgaris." Chem.Pharm.Bull.41. 1545-1548 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] H.Shirahashi,N.Murakami,M.Watanabe,A.Nagatsu,J Sakakibara et al: "Isolation and ideidentification of anti-tumor-promoting principles from the fresh-water cyanobacterium Phormidium tenue." Chem.Pharm.Bull.41. 1664-1666 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] N.Yamaba,N.Murakami,T.Morimoto,J.Sakakibara: "Auto-growth inhibitory substance from the fresh-water cyanobac-terium Phormidium tenue." Cham.Pharm.Bull.41. 1863-1865 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] N.Murakami,H.Shirahashi,A.Nagatsu,J.Sakakibara: "Two unsaturated 9R-hydroxy fatty acids from the Cyanobacterium Anabaena flos-aquae f.flos-aquae" Lipids.27. 776-778 (1992)

    • Related Report
      1992 Annual Research Report

URL: 

Published: 1992-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi