METHOD FOR CRYSTALLIZING 5óÑ-GUANYLIC ACID 2 SODIUM 7 HYDRATE IN MACRO-SIZE

摘要

Method for largeness 5 - guanylic acid 2 sodium 7 hydrate crystal by addition alcohol to 5 - guanylic acid 2 sodium aqueous solution comprising 1 - 3 % by weight of phosphoric salts, and then crystallizing 5 - guanylic acid 2 sodium 7 hydrate which is useful for food additional material of chinese noodles staple fiber by addition seed, which characterized in that 3 - 5 % by weight of 5' - guanylic acid 2 sodium 7 hydrate crystal having 0.1 - 0.18mm particle diameter is added.