琵琶湖湖底堆積物におけるクロロフィルaの初期続成的変化  [in Japanese] Early diagenetic change in chlorophyll a in sediment collected from Lake Biwa  [in Japanese]

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Author(s)

Abstract

Chlorophyll a degradation products were extracted from various samples of the 200 m core sample collected from Lake Biwa and separated into 6 components by high performance liquid chromatography. Pheophytin a, pyropheophytin a, pheophorbide a and pyropheophorbide a were identified, however the structures of rest of two components were tentatively determined as compounds which propyl residue of pyropheophytin a was reduced to aldehyde or alcohol and alkyl residue. Sedimentary samples showed markedly change in the percentage composition of these degradation products of chlorophyll a with depth. From such a vertical change, it can be concluded that removal of methoxycarbonyl residue at C<sub>6d</sub> of pheophytin a took place first after the burial of pheophytin a, followed by hydrolysis of phytyl ester and reduction of propyl residue at C<sub>7b</sub> of pheophytin a.

Journal

  • Chikyukagaku

    Chikyukagaku 14(1), 23-29, 1980

    The Geochemical Society of Japan

Codes

  • NII Article ID (NAID)
    110008679703
  • NII NACSIS-CAT ID (NCID)
    AN00141280
  • Text Lang
    JPN
  • ISSN
    0386-4073
  • NDL Article ID
    2165257
  • NDL Source Classification
    ME61(地質・地史)
  • NDL Source Classification
    ZM41(科学技術--地球科学)
  • NDL Call No.
    Z15-645
  • Data Source
    NDL  NII-ELS  J-STAGE 
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