Esterification of Endosperm Lutein with Fatty Acids during the Storage of Wheat Seeds
スポンサーリンク
概要
- 論文の詳細を見る
The structural changes in lutein, one of the major carotenoid pigments of wheat endosperm, during the storage of seeds were investigated. Wheat seeds were stored for up to 120 days at 30℃ under a relative humidity of 75, 56, 32, or 8%. The wheat seeds were then milled, and carotenoid pigments were extracted from the flour with water-saturated butanol. The HPLC analysis revealed that the hydroxyl groups of lutein had been gradually esterified with fatty acids during storage. Esterification proceeded faster as the relative humidity was reduced. It seems that the rate of esterification was increased when the water generated by esterification evaporated from the seeds at low relative humidity. The amounts of free fatty acids, substrates for the esterification of lutein, in the flour increased during storage, the increase in free fatty acids proceeding faster as the relative humidity was increased. When the seeds were heated in an autoclave at 120℃ for 20 min before storage, neither the esterification of lutein nor an increase in free fatty acids occurred. These results indicate that both reactions proceeded enzymatically. We speculate that the esterification of lutein occurred due to catalysis by lipase (triacylglycerol acylhydrolase), which produced free fatty acids from glycerides, or by other acylhydrolases which have similar kinetic properties to those of lipase.
- 社団法人日本農芸化学会の論文
- 1995-01-23
著者
-
Kaneko Shigenobu
National Institute Of Crop Science (nics)
-
Kaneko Shigenobu
National Agriculture Research Center
-
Nagamine T
National Agriculture Research Center
-
Nagamine Takashi
National Agriculture Research Center
-
Yamada Toshiaki
National Agriculture Research Center
-
Nagamine Takashi
National Agricultural Research Center For Western Region National Agriculture & Food Research Or
-
Nagamine Takashi
National Agricultural Research Center For The Western Region
関連論文
- Crystallographic Snapshots of an Entire Reaction Cycle for a Retaining Xylanase from Streptomyces olivaceoviridis E-86
- Cadmium Concentration in Grains of Japanese Wheat Cultivars : Genotypic Difference and Relationship with Agronomic Characteristics(Genetic Resources Evaluation)
- Uzu Mutation in Barley (Hordeum vulgare L.) Reduces the Leaf Unrolling Response to Brassinolide(Organic Chemistry)
- Screening for Phenoloxidases from Edible Mushrooms(Biochemistry & Molecular Biology)
- Purification and Characterization of an α-L-Arabinofuranosidase from suspension cultured Non-embryo genic carrot (Daucus carota. L)
- PCR Cloning and Expression of the F/10 Family Xylanase Gene from Streptomyces olivaceoviridis E-86
- Substrate Specificity of the α-L-Arabinofuranosidase from Trichoderma reesei
- Substrate Specificites of α-L-Arabinofuranosidases Produced by Two Species of Aspergillus niger
- Syntheses of 4-Methylumbelliferyl-β-D-Xylobioside and 5-Bromo-3-Indolyl-β-D-Xylobioside for Sensitive Detection of Xylanase Activity on Agar Plates
- Purification and Characterization of a Family G/11 β-Xylanase from Streptomyces olivaceoviridis E-86
- Characterization of a Thermostable Endo-β-1,4-D-galactanase from the Hyperthermophile Thermotoga maritima
- Synergy Between an α-L-Arabinofuranosidase from Aspergillus oryzae and an Endo-Arabinanase from Streptomyces coelicolor for Degradation of Arabinan
- Expression of Streptomyces coelicolor α-Galactosidase Gene in Escherichia coli and Characterization
- Purification, Characterization, and cDNA Cloning of a Novel α-Galactosidase from Mortierella vinacea
- Purification and Characterization of Recombinant Mortierella vinacea α-Galactosidases I and II Expressed in Saccharomyces cerevisiae
- Esterification of Endosperm Lutein with Fatty Acids during the Storage of Wheat Seeds
- Peptide Mapping and Assessment of Cryoprotective Activity of 26/27-kDa Dehydrin from Soybean Seeds(Biochemistry & Molecular Biology)
- Expression of Rice (Oryza sativa L. var. Nipponbare) α-Galactosidase Genes in Escherichia coli and Characterization
- Varietal Differences in the Rate of Esterification of Endosperm Lutein during the Storage of Wheat Seeds
- Development of a Gene Transfer System for the Mycelia of Flammulina velutipes Fv-1 Strain
- Properties of Ethanol Fermentation by Flammulina velutipes
- Use of Whole Crop Sorghums as a Raw Material in Consolidated Bioprocessing Bioethanol Production Using Flammulina velutipes
- Analysis of Calcium and Magnesium Ions in Wheat Flour by Capillary Zone Electrophoresis
- Determination of Free and Bound Phenolic Acids, and Evaluation of Antioxidant Activities and Total Polyphenolic Contents in Selected Pearled Barley
- Improvement of the Transformation Efficiency of Flammulina velutipes Fv-1 Using the Glyceraldehyde-3-phosphate Dehydrogenase Gene Promoter
- Effects of Cellulose Crystallinity, Hemicellulose, and Lignin on the Enzymatic Hydrolysis of Miscanthus sinensis to Monosaccharides
- Long Terminal Repeat of the Mushroom Retrotransposon Functions as a Dual Terminator to Transcription
- Distribution of Hydrophobin 1 Gene Transcript in Developing Fruiting Bodies of Lentinula edodes(Biochemistry & Molecular Biology)
- Breeding of Kirari-mochi : A new two-rowed waxy hull-less barley cultivar with superior quality characteristics
- Effect of Lime Pretreatment of Brown Midrib Sorghums
- Pt-Catalyzed Oxidative Rearrangement of Cyclic Tertiary Allylic Alcohols to Enones Using Aqueous Hydrogen Peroxide
- Determination of γ-Aminobutyric Acid and Free Amino Acid Contents in Barley Seeds and Amounts Produced by Water Soaking Treatment