The precipitation of the basic amino-acids of proteins with phosphotungstic acid.
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چکیده
منابع مشابه
Phosphotungstic Acidcatalyzed Strecker Three-Component Reaction of Amino Acids, Aldehydes, and Trimethylsilyl Cyanide
A simple and efficient one-pot, three-component Strecker reaction of protected amino acids, aromatic aldehydes, and trimethylsilyl cyanide has been developed for the synthesis of chiral α-amino nitriles. The reaction was carried out in the presence of catalytic amount of phosphotungstic acid (H3[P(W3O10)4]) as an environmentally friendly cata...
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Isoelectric solubilization /precipitation (ISP) process was used to isolate protein from muscles of Prussian carp, Carassius gibelio (Bloch, 1782). Fish protein and lipid were recovered from whole gutted Prussian carp using acidic and basic isoelectric solubilization/precipitation followed by assaying amino acid and fatty acid profile. Essential amino acids content in acidic and basic pH treatm...
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In the preceding papers (1, 2) the preparation and properties of sulfonium salts of methionine were described. The ease of formation of the methylsulfonium salt and the solubility properties of its phosphotungstate suggest utilization for the characterization of methionine in amino acid mixtures, since the phosphotungstates of other a-amino acids are readily soluble in cold aqueous alcohol whil...
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None of the methods which have been used for isolating Z-(+)lysine from plant extracts and protein hydrolysates is ideal. The oldest method utilizes phosphotungstic acid to precipitate the basic nitrogenous compounds which must be fractionated subsequently (1, 2). In the Kossel-Kutscher silver sulfate-barium hydroxide fractionation (3) the lysine remaining in the final filtrate must be precipit...
متن کاملA New Method for Isolating I-(+)-lysine
None of the methods which have been used for isolating Z-(+)lysine from plant extracts and protein hydrolysates is ideal. The oldest method utilizes phosphotungstic acid to precipitate the basic nitrogenous compounds which must be fractionated subsequently (1, 2). In the Kossel-Kutscher silver sulfate-barium hydroxide fractionation (3) the lysine remaining in the final filtrate must be precipit...
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عنوان ژورنال:
- The Biochemical journal
دوره 24 2 شماره
صفحات -
تاریخ انتشار 2005