GB423057A - An improved process for making metal albumen tannin ester compounds which are readily soluble in water - Google Patents

An improved process for making metal albumen tannin ester compounds which are readily soluble in water

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Publication number
GB423057A
GB423057A GB2753833A GB2753833A GB423057A GB 423057 A GB423057 A GB 423057A GB 2753833 A GB2753833 A GB 2753833A GB 2753833 A GB2753833 A GB 2753833A GB 423057 A GB423057 A GB 423057A
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GB
United Kingdom
Prior art keywords
tannin
solution
albumen
water
added
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB2753833A
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Individual
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Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Individual filed Critical Individual
Priority to GB2753833A priority Critical patent/GB423057A/en
Publication of GB423057A publication Critical patent/GB423057A/en
Expired legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07K—PEPTIDES
    • C07K14/00—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
    • C07K14/435—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Gastroenterology & Hepatology (AREA)
  • Biochemistry (AREA)
  • Biophysics (AREA)
  • Zoology (AREA)
  • Genetics & Genomics (AREA)
  • Medicinal Chemistry (AREA)
  • Molecular Biology (AREA)
  • Proteomics, Peptides & Aminoacids (AREA)
  • Toxicology (AREA)
  • Medicines Containing Plant Substances (AREA)
  • Coloring Foods And Improving Nutritive Qualities (AREA)

Abstract

Water-soluble metal albumen tannin ester compounds are prepared by dissolving tannin esters other than acetyl tannin esters, which still contain free phenol groups and are saponifiable at ordinary temperature by normal sodium carbonate only with difficulty, in such a quantity of aqueous alkali or alkaline-reacting alkali salt that the solution is still weakly acidic, and treating with aqueous metal albumen solutions. The compounds are used therapeutically in solution or powder form. In examples: (1) Benzoyl tannin is made by heating a mixture of tannin, natrium benzoicum, and benzoic anhydride in a water bath, diluting largely with water, filtering, washing, and vacuum drying at 30--40 DEG C. A solution of the benzoyl tannin in sodium carbonate is added to an aqueous solution of argentum proteinicum and the solution evaporated. (2) Casein is boiled with caustic soda solution, filtered, and nitric acid added as long as the initial precipitate redissolves. To the solution gold chloride is added, the product then being heated to about 90 DEG C. until a clear solution is obtained which is cooled, dialysed, and the gold albumen compound vacuum dried. A concentrated solution of the product is treated with benzoyl tannin in sodium carbonate solution and the product dried in vacuo. (3) Bismuth albumen benzoyl tannin is made as in (2) using a solution of bismuth nitrate to which mannite is added. (4) Tannin and concentrated lactic acid are heated to give lactyl tannin which is dissolved in sodium carbonate and argentum proteinicum in water added. The product is vacuum dried. (5) Tannin is added to a dried methyl alcohol solution of acetyl salicylic acid and the mixture refluxed. The solvent is evaporated and the product washed with ether and water. A solution of the acetyl salicyl tannin in sodium carbonate is treated with a solution of argentum proteinicum and the product dried in vacuo. A prior proposal to make a soluble silver albumen tannin compound by treating diacetyl tannin dissolved in alkali with an aqueous solution of albumose silver albumen is referred to. p
GB2753833A 1933-10-06 1933-10-06 An improved process for making metal albumen tannin ester compounds which are readily soluble in water Expired GB423057A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2753833A GB423057A (en) 1933-10-06 1933-10-06 An improved process for making metal albumen tannin ester compounds which are readily soluble in water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2753833A GB423057A (en) 1933-10-06 1933-10-06 An improved process for making metal albumen tannin ester compounds which are readily soluble in water

Publications (1)

Publication Number Publication Date
GB423057A true GB423057A (en) 1935-01-24

Family

ID=10261202

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2753833A Expired GB423057A (en) 1933-10-06 1933-10-06 An improved process for making metal albumen tannin ester compounds which are readily soluble in water

Country Status (1)

Country Link
GB (1) GB423057A (en)

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