High-performance liquid chromatographic determination with photodiode array detection of ellagic acid in fresh and processed fruits

Yoshiaki Amakura, Mai Okada, Sumiko Tsuji, +1

Journal of Chromatography A

Food ChemistryFood AnalysisBioanalysisAnalytical ChemistryLiquid Chromatography +8

Influence of Jam Processing on the Radical Scavenging Activity and Phenolic Content in Berries

Yoshiaki Amakura, Yukiko Umino, Sumiko Tsuji, +1

Journal of Agricultural and Food Chemistry

Characterization in vitro and in vivo of the putative multigene 4-coumarate:CoA ligase network in Arabidopsis: syringyl lignin and sinapate/sinapyl alcohol derivative formation

Michael A. Costa, Diana L. Bedgar, Syed Moinuddin, +11

Phytochemistry

Plant Molecular BiologyPlant BiologyBiosynthesisSyringyl LigninPutative Multigene +9

Constituents and their antioxidative effects in eucalyptus leaf extract used as a natural food additive

Yoshiaki Amakura, Yukiko Umino, Sumiko Tsuji, +4

Food Chemistry

Food ChemistryEucalyptus Leaf ExtractAntioxidative EffectsFood Bioactive CompoundNatural Food Additive +4

Determination of phenolic acids in fruit juices by isocratic column liquid chromatography

Yoshiaki Amakura, Mai Okada, Sumiko Tsuji, +1

Journal of Chromatography A

Food ChemistryPolyphenolicsFood AnalysisAnalytical ChemistryFruit Juices +4

Polyphenolic compounds isolated from the leaves of Myrtus communis

Morio Yoshimura, Yoshiaki Amakura, Mie Tokuhara, +1

Journal of Natural Medicines

BiologyPolyphenolic CompoundsPhytochemicalPhytochemistryPharmacology +1

Marker Constituents of the Natural Antioxidant Eucalyptus Leaf Extract for the Evaluation of Food Additives

Yoshiaki Amakura, Morio Yoshimura, Naoki Sugimoto, +2

Bioscience Biotechnology and Biochemistry

Food ChemistryEucalyptus Leaf ExtractFood AdditivesPolyphenolicsBotany +10

Ephedrine alkaloids-free Ephedra Herb extract: a safer alternative to ephedra with comparable analgesic, anticancer, and anti-influenza activities

Sumiko Hyuga, Masashi Hyuga, Naohiro Oshima, +9

Journal of Natural Medicines

Activation of the Aryl Hydrocarbon Receptor by Some Vegetable Constituents Determined Using in Vitro Reporter Gene Assay.

Yoshiaki Amakura, Tomoaki Tsutsumi, Masafumi Nakamura, +6

Biological and Pharmaceutical Bulletin

Ahr ActivationVegetable ConstituentsPhytoalexinBiochemistryMedicine +11

Antioxidative Properties of Functional Polyphenols and Their Metabolites Assessed by an ORAC Assay

Hidekazu Ishimoto, Akihiro Tai, Morio Yoshimura, +4

Bioscience Biotechnology and Biochemistry

Nutraceutical IngredientLipid PeroxidationFunctional PolyphenolsPolyphenolicsOxidative Stress +16