7Thanikaivelan, P. , Rao, J. R. , Nair, B. U. , et al. Progress and recent in biotechnological methods for leather processing[J].Trends in Biotechnology, 2004, 22(4):181～188.
8Cantera, C.S. Hair saving unhairing process: part 4 remarks on the evolution of the investigations on enzyme unhairing[J]. JSLTC, 2001, 85(4):125～132.
10Reverchon, E. ,Porta, G. Della. Production of antibiotic micro- snd nano-particles by supercritical antisolvent precipitation[J].Powder Technology, 1999, 106(1～2):23～29.
