... pollution.Fresh:Directional zymohydrolysis technology of leading international,using 100% Gadous macrocephaius skin by low temperature,reserving activity ... accumulate density lowly, convenient for using wide scale. As functional ingredients, add to milk, yogurt, meat products, protein drinks, ... the viscosity of aqueous solution collagen is 0 to 100 cP. As the temperature increases,the viscosity become ...