Degradation of chlorophyll-a by heating experiments : Implications for its early diagenesis in sediments
スポンサーリンク
概要
- 論文の詳細を見る
We carried out heating experiments of chlorophyll-a alone and in the presence of clay or water in order to obtain useful information on its degradation in the early diagenesis in sediments. The heating experiments showed that the degradation proceeded in the order of chlorophyll-a with clay < chlorophyll-a alone < chlorophyll-a with water. The activation energies estimated were 36.2kcal/mol for chlorophyll-a alone, 38.3kcal/mol for chlorophyll-a with clay, and 21.0kcal/mol with water. The transformation pathway of chlorophyll-a to pyropheophorbide-a was different if water was present. Heating of chlorophyll-a alone and with clay released the phytyl chain in the first step, while demetallation preceded in case of chlorophyll-a with water.
- 日本有機地球化学会の論文
- 1996-05-30
著者
-
Shimoyama Akira
Department of Chemistry, University of Tsukuba
-
Shimoyama Akira
Department Of Chemistry University Of Tsukuba
-
Zenyouji Kazuya
Department of Chemistry, University of Tsukuba
-
Zenyouji Kazuya
Department Of Chemistry University Of Tsukuba
-
Shimoyama Akira
Univ. Tsukuba Tsukuba Jpn
関連論文
- Investigation of organic compounds released from kerogen in Neogene sediments of the Shinjo basin by heating experiments using a TG-GC/MS system
- FORMATION OF N-CARBAMOYLALANINE FROM UREA AND PYRUVIC ACID IN AQUEOUS FORMIC ACID
- 2-Ethyl-3-methylmaleimide in Tokyo Bay Sediments Providing the First Evidence for its Formation from Chlorophylls in the Present Photic and Oxygenic Zone(Analytical Chemistry)
- Flame-Induced Addition of Urea to Unsaturated Carboxylic Acids
- A New Thermal Polycondensation of Alanine in Molten Urea^1
- Urea as a Nitrogen Source in the Formation of Polyaspartic Acid from Malic, Maleic, and Fumaric Acids^1
- Structural Elucidation of an Oxidation Product of Sedimentary Porphyrins by One-Pot Synthesis of 3-Methylphthalimede
- Maleimides in the Cretaceous/Tertiary boundary sediments at Kawaruppu, Hokkaido, Japan
- Detection of maleimides and their characteristics in Neogene sediments of the Shinjo basin, Japan
- Analysis of water-extractable dipeptides from sediments by gas chromatography-mass spectrometry
- Tetra- and pentacyclic alkanes in the Cretaceous/Tertiary boundary sediments at Kawaruppu, Hokkaido, Japan
- A New Maturity Indicator of Sedimentary Organic Matter Based on Thermal Fission of Allylic Bond in Porphyrins
- Organic compounds in the condensed water from the MIR space station.
- A New Parameter for Maturity Determination of Organic Matter in Sediments Based on the Clay-Catalyzed Thermal Isomerization of Monomethylphenanthrenes
- CLAY MINERALS OF THE FIG TREE SHALE IN THE EARLY ARCHEAN
- Degradation of chlorophyll-a by heating experiments : Implications for its early diagenesis in sediments
- Thiophenes in the Cretaceous / Tertiary boundary sediments at Kawaruppu, Hokkaido, Japan
- Mono- and bicyclic alkanes and diamondoid hydrocarbons in the Cretaceous/Tertiary boundary sediments at Kawaruppu, Hokkaido, Japan
- Detection of water extractable dipeptides and their characteristics in recent sediments of Tokyo Bay
- Mathematical model for release of compounds from kerogen and its applications for Neogene sediments of the Shinjo basin, Japan
- Determination of activation energy and pre-exponential factor for individual compounds on release from kerogen by a laboratory heating experiment
- Under-flame Reaction of Sulfur-containing Amino Acids by a Hydrogen-Oxygen Flame
- Under-flame Oxidation of Amines and Amino Acids in an Aqueous Solution
- Radical Dimerization of Allylamine in an Aqueous Solution Initiated by a Hydrogen Atom from a Hydrogen-oxygen Flame(Organic Chemistry)
- The First Experimental Simulation of Thermal Transformation of Chlorophylls into Benzoporphyrins in Sediments
- Naphthalenes in Neogene sediments of the Shinjo basin, Japan
- Experimental simulation of thermal alteration of naphthalenes in sediments based on isomerization of methyl- and dimethylnaphthalenes
- A New Parameter for Maturity Assessment of Organic Materials in Sediments Based on Thermal Isomerization of Monomethylphenanthrenes
- Detection of mono- and bicyclic alkanes and their characteristics in Neogene sediments of the Shinjo basin, Japan
- Analyses of Amino Acids and Benzene Extracts in the Condensed Water Collected from Inside of the MIR Space Station
- Characterization of n-alkanes, pristane and phytane in the Cretaceous/Tertiary boundary sediments at Kawaruppu, Hokkaido, Japan
- Search for extraterrestrial amino acids in sediments at the Cretaceous/Tertiary boundary in Kawaruppu, Hokkaido, Japan
- Distribution of polycyclic aromatic hydrocarbons in the K/T boundary sediments at Kawaruppu, Hokkaido, Japan
- Characterization of water-extractable dicarboxylic acids in Neogene sediments of the Shinjo basin, Japan
- Analyses of organic compounds and carbon isotope ratio in the MUSES-C samples
- Carbon isotopic compositions of Antarctic carbonaceous chondrites with relevance to the alteration and existence of organic matter
- Carbon Isotopic Compositions in Antarctic Carbonaceous Chondrites
- Organic Compounds from Insoluble Organic Matter Isolated from the Murchison Carbonaceous Chondrite by Heating Experiments
- Release of organic compounds from some Antarctic CI and CM chondrites by laboratory heating
- Thermal release of organic compounds from kerogen by a DTA/TG-GC/MS method
- Degradation of oligopeptides by contact glow discharge electrolysis
- Abiotic Asparagine Formation from Simple Amino Acids by Contact Glow Discharge Electrolysis
- DEGRADATION OF DIPEPTIDES BY CONTACT GLOW DISCHARGE ELECTROLYSIS
- Fatty Acid Analysis of Archaeolgical Pottery Vessels Excavated in Tell Mastuma, Syria
- Polynuclear Aromatic Thiophenes in the Murchison Carbonaceous Chondrite
- Alkyl and polynuclear aromatic thiophenes in Neogene sediments of the Shinjo basin, Japan
- Detection of secondary alkanols in Neogene sediments of the Shinjo basin, Japan : possible thermal hydration reaction products
- Analyses of fatty acids and hydrocarbons of the rock excavated from the Inadaira archaeological site, Aomori Prefecture, Japan
- Dicarboxylic Acids in the Murchison and Yamato-791198 Carbonaceous Chondrites
- Carbon Isotope Compositions of Graphite and Carbonate in 3.8 x 10^9 Years Old Isua Rocks
- Amination of Carboxylic Acids by Reductive Fixation of Molecular Nitrogen by Glow Discharge Against Aqueous Solution.