Simultaneous Determination of S-Methylmethionine, Vitamin U and Free Amino Acids in Extracts of Green Tea with an HPLC-Amino Acid Analyzer
スポンサーリンク
概要
- 論文の詳細を見る
Free amino acids and S-methylmethionine (MMS, an anti-ulcer factor, Vitamin U) in green tea extracts were simultaneously determined with an HPLC-amino acid analyzer using lithium citrate buffers. Rapid analysis of MMS and free amino acids was achieved with a high resolution column, MCI Gel CK-10U 0.46φ × 15cm, within ISOmin. MMS in the column eluates was identified as dimethyl sulfide by a gas-chromatographic method with a flame photometric detector. The contents of MMS and free amino acids in various green teas were determined and compared with respect to the quality of commercial teas, blended teas and non-blended teas, and the place of cultivation of the tea. The described method is rapid and useful for checking the quality of green tea.
- 社団法人 日本農芸化学会の論文
著者
-
Ohtsuki Kozo
Department Of Food Science And Nutrition Kyoto Prefectural University
-
Kawabata Makoto
Department Of Applied Chemistry And Chemical Engineering Faculty Of Engineering Kagoshima University
-
TAGUCHI Kuniko
Department of Food Science, Faculty of Living Science, Kyoto Prefectural University
-
KOKURA Hiroshi
Kyoto Prefectural Tea Research Institute
-
KAWABATA Makoto
Department of Food Science, Faculty of Living Science, Kyoto Prefectural University
関連論文
- Amino Acid Sequencing and cDNA Cloning of Rice Seed Storage Proteins, the 13kDa Prolamins, Extracted from Type I Protein Bodies
- Inhibition of Pancreatic Carcinogenesis by Shark Cartilage Proteoglycan in Hamsters
- Evidence for the Existence of a Soybean Resistant Protein That Captures Bile Acid and Stimulates Its Fecal Excretion
- Effect of Kiwifruit Juice on Beef Collagen
- Simple and rapid chromatographic purification of type V collagen from a pepsin digest of porcine intestinal connective tissue, an unmanageable starting material for conventional column chromatography
- DNA Repair Effect of Traditional Sweet Pepper Fushimi-togarashi : Seen in Suppression of UV-induced Cyclobutane Pyrimidine Dimer in Human Fibroblast
- Comparative Bio-antimutagenicity of Common Vegetables and Traditional Vegetables in Kyoto
- Effect of Steroid Hormone Administration on the Breakdown of Muscle Proteins in Ayu
- Effect of Maturation on the Contents of Free and Bound Forms of Hydroxyproline in Ayu Muscle
- Preparation of Highly Active Methanol Steam Reforming Catalysts from Glassy Cu-Zr Alloys with Small Amount of Noble Metals
- Purification and Characterization of Six Kiwifruit Proteases Isolated with Two Ion-exchange Resins, Toyopearl-SuperQ and Bakerbond WP-PEI
- Characterization of Kintoki Bean (Phaseolus vulgaris) α-Amylase Inhibitor : Inhibitory Activities against Human Salivary and Porcine Pancreatic α-Amylases and Activity Changes by Proteolytic Digestion
- Purification and Characterization of Glutaredoxin (Thioltransferase) from Rice (Oryza sativa L.)^1
- Preservability and Utilization of Powdered α-Linolenic Acid with Egg White
- Oxidative Stability of Sardine Oil Embedded in Spray-dried Egg White Powder and Its Use for n-3 Unsaturated Fatty Acid Fortification of Cookies
- Antioxidant Effects of Wheat Gliadin and Hen's Egg White in Powder Model Systems: Protection against Oxidative Deterioration of Safflower Oil and Sardine Oil(Food & Nutrition)
- Degradation of α-Connectin in Raw Fish Muscle and Softening Evaluated by the Breaking Strength Occur Independently during One Day-chilled Storage
- Improved chromatographic purification of human and bovine type V collagen sub-molecular species and their subunit chains from conventional crude preparations : Application to cell-substratum adhesion assay for human umbilical vein endothelial cell
- Enzymatic Properties, Substrate Specificities and pH-Activity Profiles of Two Kiwifruit Proteases
- Determination of S-Methylmethionine, Vitamin U, in Various Teas
- Amino Acid Composition of Rice Prolamin Polypeptides
- Simultaneous Determination of S-Methylmethionine, Vitamin U and Free Amino Acids in Extracts of Green Tea with an HPLC-Amino Acid Analyzer
- Chemical Modification of Subtilisin BPN' by 5-Diazo-1-H-Tetrazole
- Purification and Characterization of Glutaredoxin (Thioltransferase) from Rice (Oryza sativa L.).