1[1]Sato T, Yamada Y, Ohtani Y, et al. Efficient production of menaquinone (vitamin K2) by a menadione-resistant mutant of Bacillus subtilis[J]. J Ind Microbiol Biotechnol, 2001,26(3):115-120.
2[2]Chang CT, Fan MH, Kuo FC, et al. Potent fibrinolytic enzyme from a mutant of Bacillus subtilis IMR-NKI[J]. J Agric Food Chem, 2000,48(8): 3 210-3 116.
3[3]Kudo T. Warfarin antagonism of natto and increase in serum vitmain K by intake of natto[J]. Artery, 1990,17(4):189-201.
4[4]Schurgers LJ, Vermeer C. Determination of phylloquinone and menaquinones in food. Effect of food matrix on circulating vitmain K concentrations[J]. Haemostasis, 2000, 30(6):298-307.
5[5]Ashiuchi M, Soda K, Misono H. A poly-gamma-glutamate synthetic system of Bacillus stubtilis IFO3336: gene cloning and biochemical analysis of poly-gamma-glutamato produced by Escherichia coli clone cells[J]. Biochem Biophys Res Commun,1999, 263(1): 6-12.
6[6]Kirk P, Patterson RE, Lampe J. Development of a soy food frequency questionnaire to estimate isoflavone consumption in US adults[J]. J Am Diet Assoc,1999, 99(5): 558-563.
7[7]Sumi H, Hamada H, Nakanishi K, et al. Enhancement of the fibrinolytic activity in plasma by oral administration of nattokinase. Acta-Haematol, 1990, 84(3): 139-143.
8[8]Urano T, Ihara H, Umemura K. The profibrinolytic enzyme subtilisin NAT purified from Bacillus subtilis Cleaves and inactivates plasminogen activator inhibitor type 1[J]. J Biol Chem, 2001, 276(27): 24 690-24 696.
9[9]Tanimoto H, Mori M, Motoki, M, et al. Natto mucilage containing poly-gamma-glutamic acid increase soluble calcium in the rat small intestine[J]. Biosci Biotechnol Biochem, 2001,65(3): 516-521.
10[10]Yamaguchi M, Kakuda H, Gao YH, et al. Prolonged intake of fermented soybean (natto) diets containing vitamin K2 (menaquinone-7) prevents bone loss in ovariectomized rats[J]. J Bone Miner Metab,2000, 18(2): 71-76.
8Yasuhiro Suzuki Kazunao.Dietary supplementation of fermented soybean,natto,suppresses intimal thickening and modulates the lysis of mural thrombi after endothelial injury in rat femoral artery[J].Life Sciences,2003,73:1289-1298.
9Stowe R ,Mayer R P.Industrial and Engineering Chemistry[M],1966,58(2):36-40.
10Astrup T.Sten M.The Fibrin plate method for estimating fibrinolyticactivity[J].Arch Bioploys,1952,40:346.