Ecofriendly lime and sulfide free enzymatic dehairing of skins and hides using a bacterial alkaline protease

Chemosphere - Tập 70 - Trang 1015-1024 - 2008
S. Sivasubramanian1, B. Murali Manohar2, A. Rajaram3, R. Puvanakrishnan1
1Department of Biotechnology, Central Leather Research Institute, Adyar, Chennai 600 020, India
2Department of Pathology, Madras Veterinary College, Vepery, Chennai 600 007, India
3Department of Biophysics, Central Leather Research Institute, Adyar, Chennai 600 020, India

Tài liệu tham khảo

Alexander, 1986, Influence of proteoglycan removal on opening-up in the beamhouse, J. Am. Leather Chem. As., 81, 85 APHA, 1989. Standard Methods for the Examination of Water and Wastewater, 17th ed., American Public Health Association, Washington, DC. Cantera, 1997, Hair – a new raw material – Overview, World Leather, 10, 51 Cantera, 1996, Hair saving enzyme-assisted unhairing: influence of enzymatic products upon final leather quality, J. Soc. Leath. Tech. Ch., 80, 83 Davies, 1997, Setting of consent limits for tanning industry trade effluents, J. Soc. Leath. Tech. Ch, 81, 32 Dayanandan, 2003, Application of an alkaline protease in leather processing: an ecofriendly approach, J. Clean. Prod., 11, 533, 10.1016/S0959-6526(02)00056-2 Frendrup, W., 2000. Hair-Save Unhairing Methods in Leather Processing; UNIDO Report, pp. 1–37. Hannah, 1991, Chronic exposure to low concentrations of hydrogen sulfide produces abnormal growth in developing cerebellar Purkinje cells, Neurosci. Lett., 122, 225, 10.1016/0304-3940(91)90864-P Herfeld, 1969, The influence of swelling and plumpness of animal hides in the liming process on the properties of leather, J. Am. Leather Chem. As., 64, 198 IS 2961, 1964. Indian Standards Institution, New Delhi, India. IUC 8, 1998. Determination of chromic oxide content. J. Soc. Leath. Tech. Ch. 82, 200–208. IUP 2, 2000. Sampling. J.Soc. Leath. Tech. Ch. 84, 303–309. IUP 6, 2000. Measurement of tensile strength and percentage elongation. J. Soc. Leath. Tech. Ch. 84, 317–321. IUP 8, 2000. Measurement of tear load-Double edge tear. J. Soc. Leath. Tech. Ch. 84, 327–329. Kamini, 1999, Microbial enzyme technology as an alternative to conventional chemicals in leather industry, Curr. Sci. India, 77, 80 Lokanadam, 1989, Compressibility measurement and the objective assessment of softness of light leathers, J. Soc. Leath. Tech. Ch., 73, 115 Macedo, 2005, Novel keratinase from Bacillus subtilis S14 exhibiting remarkable dehairing capabilities, Appl. Environ. Microb., 71, 594, 10.1128/AEM.71.1.594-596.2005 Marsal, 1999, Oxidizing unhairing process with hair recovery. Part I. Experiments on the prior hair immunization, J. Soc. Leath. Tech. Ch, 83, 310 Menderes, 1999, The mechanism and effects of collagen amide group hydrolysis during liming, J. Soc. Leath. Tech. Ch, 83, 107 Official Methods of Analysis, Sec.1. 1965. Society of Leather Trades’ Chemists, Redbourn, Herts, UK. Paul, 2001, The use of neutral protease in enzymatic unhairing, J. Am. Leather Chem. As., 96, 180 Puvanakrishnan, 1986, Recent advances in the enzymatic depilation of hides and skins, Leather Sci., 33, 177 Puvanakrishnan, 1988, Enzyme technology in beamhouse practice, 92 Ramasami, 1999, Beamhouse and tanning operations: process chemistry revisited, J. Soc. Leath. Tech. Ch, 83, 39 Roth, 1995, Alteration of the morphology and neurochemistry of the developing mammalian nervous system by hydrogen sulphide, Clin. Exp. Pharmacol. P., 22, 379, 10.1111/j.1440-1681.1995.tb02024.x Saravanabhavan, 2005, Silicate enhanced enzymatic dehairing: A new lime–sulfide-free process for cowhides, Environ. Sci. Technol., 39, 3776, 10.1021/es048770o Scott, 1980, Collagen–Proteoglycan interactions, Biochem. J., 187, 887, 10.1042/bj1870887 SLP 9 (IUP/9), 1996. Measurement of distension and strength of grain by the ball burst test, Official Methods of Analysis, The Society of Leather Technologists and Chemists, Northampton. Taylor, 1987, A review of the uses of enzymes in tannery, J. Am. Leather Chem. As., 82, 153 Thanikaivelan, 2002, Towards zero discharge tanning: A shift from chemical to biocatalytic leather processing, Environ. Sci. Technol., 36, 4187, 10.1021/es025618i Thanikaivelan, 2005, Recent trends in leather making: processes, problems, and pathways, Crit. Rev. Environ. Sci. Technol., 35, 37, 10.1080/10643380590521436