7Foltmann B.Prochymosin and chymosin (prorennin and rennin)[J].J Biochem,1969,115(3):39-49.
8Lopes A,Teixeira G,Liberato M C,et al.New vegetal sources for milk-clotting enzymes[J].Journal of Molecular Catalysis B:Enzymatic,1998,5:63-68.
9Arima K,Shinier I,Gakuzo T.Milk-clotting enzymes from microorganism,part I,Screening test and identification of potent fungus[J].Agric Biol Chem,1967,31(5):540-545.
10Arima K, Shinier I, Gakuzo T. Milk-clotting enzymes from microorganism, part Ⅰ Screening test and identification of potent fungus [J]. Biology Chemical, 1967,31 (5) :540-545.