The New Encyclopaedia Britannica, Volume 29Encyclopaedia Britannica, 1974 - Encyclopedias and dictionaries |
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Page 224
... acid comprising about 1 to 6 percent by weight of most proteins . First isolated from casein in milk ( 1849 ) , it is one of three aromatic amino acids ( the others , phenylalanine and tryptophan ) , so called be- cause the molecule ...
... acid comprising about 1 to 6 percent by weight of most proteins . First isolated from casein in milk ( 1849 ) , it is one of three aromatic amino acids ( the others , phenylalanine and tryptophan ) , so called be- cause the molecule ...
Page 301
... acids ( RNAS ) composed of the sugar ribose and the organic nitrogen compound uracil . See uracil . uridylic acid , a structural unit of ribonucleic acids ( RNAS ) composed of the sugar ribose , phosphoric acid , and the organic ...
... acids ( RNAS ) composed of the sugar ribose and the organic nitrogen compound uracil . See uracil . uridylic acid , a structural unit of ribonucleic acids ( RNAS ) composed of the sugar ribose , phosphoric acid , and the organic ...
Page 742
... acid , either as a deposit from the acid or as a residue from the distillation of the acid . Crude pyroligneous acid is the condensed , volatile product of wood distillation , and it has an average composition of water , 81 per- cent ...
... acid , either as a deposit from the acid or as a residue from the distillation of the acid . Crude pyroligneous acid is the condensed , volatile product of wood distillation , and it has an average composition of water , 81 per- cent ...
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