39.

Beukes, N., Pletschke, B.I.* (2011) Effect of alkaline pre-treatment on enzyme synergy for efficient hemicellulose hydrolysis in sugarcane bagasse  Bioresource Technology, In Press, Accepted Manuscript, Available online 5 February 2011

.38

Visser, D.F., Hennessy, F., Rashamuse, J., Pletschke, B., Brady, D* (2011). Stabilization of Escherichia coli uridine phosphorylase by evolution and immobilization. Journal of Molecular Catalysis B: Enzymatic 68 ( 3-4), 279-285.

37.

Van Dyk, J.S., Pletschke, B.I.* (2011) Review on the use of enzymes for the detection of organochlorine, organophosphate and carbamate pesticides in the environment. Chemosphere 82 ( 3), 291-307. (IF = 3.25).

36.

Beukes N., Pletschke B.I.* (2010). Effect of lime pre-treatment on the synergistic hydrolysis of sugarcane bagasse by hemicellulases. Bioresource Technology, 101 (12), 4472-4478. (IF = 4.45).

35.

Van Dyk J.S., Sakka M., Sakka K., Pletschke B.I.* (2010). Identification of endoglucanases, xylanases, pectinases and mannanases in the multi-enzyme complex of Bacillus licheniformis SVD1. doi:10.1016/j.enzmictec.2010.05.004. Enzyme and Microbial Technology, 47 (3), 112-118. (IF = 2.38).

34.

Van Dyk J.S., Sakka M., Sakka K., Pletschke B.I.* (2010). Characterisation of the multi-enzyme complex xylanase activity from Bacillus licheniformis. Enzyme and Microbial Technology, 47 (4), 174-177) (IF = 2.38).

33.

Abboo S. and Pletschke B.I.* (2010). Effect of phenolic compounds on the rapid direct enzymatic detection of ?-D-galactosidase and ?-D-glucuronidase. Water SA, 36 (1), 133-138. (IF = 1.12).

32.

Richardson, N*.; Gordon, A.K.; Muller, W.J., Pletschke, B.I., Whitfield A.K. (2010). The use of liver histopathology, lipid peroxidation and acetylcholinesterase assays as biomarkers of contaminant-induced stress in the Cape stumpnose, Rhabdosargus holubi (Teleostei: Sparidae), from selected South African estuaries Water SA, 36 (4), 407-415. (IF = 1.12).

31.

Sakka, K*., Sakka, M., Kimura, T., Pletschke, B.I., Ratanakhanokchai, K. (2010). Structure and Function of Cellulolytic Complex “Cellulosome”. Research for Tropical Agriculture 3 (2), 88-92.

30.

Van Dyk J.S., Sakka M., Sakka K., Pletschke B.I.* (2009). The cellulolytic and hemi-cellulolytic system of Bacillus licheniformis SVD1 and the evidence for production of a large multi-enzyme complex. Enzyme and Microbial Technology, 45 (5), 372-378. (IF = 2.38).

29.

Wutor V.C., Togo C.A. and Pletschke, B.I.* (2009). Suitability of total coliform ?-D-galactosidase activity and CFU counts in monitoring faecal contamination of environmental water samples. Water SA, 35 (1), 85-88. (IF = 1.12).

28.

Lavan L.M., Van Dyk J.S., Chan H., Doi R.H. and Pletschke B.I.* (2009). Effect of physical conditions and chemicals on the binding of a mini-CbpA from Clostridium cellulovorans to a semi-crystalline cellulose ligand. Letters in Applied Microbiology, 48 (4), 419-425. (IF = 1.68).

27.

Burgess J.E. and Pletschke B.I.* (2008). Hydrolytic enzymes in sewage sludge treatment: A mini-review. Water SA 34 (3), 343-349. (IF = 1.12).

26.

Beukes N., Chan H., Doi R.H. and Pletschke B.I.* (2008) Synergistic associations between Clostridium cellulovorans enzymes XynA, ManA and EngE against sugarcane bagasse. Enzyme and Microbial Technology, 42 (6), 492-498. (IF = 2.38).

25.

Roman H., Madikane M. and Pletschke B.I.*, Rose P.D. (2008) The degradation of lignocellulose in a chemically and biologically generated sulphidic environment. Bioresource Technology, 99 (7), 2333-2339. (IF = 4.45).

24.

Wutor V.C, Togo C.A. and Pletschke B.I.* (2007) The effect of physico-chemical parameters and chemical compounds on the activity of ?-d-galactosidase (B-GAL), a marker enzyme for indicator microorganisms in water. Chemosphere, 68 (4), 622-627. (IF = 3.05).

23.

Togo C.A., Wutor V.C., Limson J.L. and Pletschke B.I.* (2007). Novel detection of Escherichia coli ß-D-glucuronidase activity using a microbially-modified glassy carbon electrode and its potential for faecal pollution monitoring. Biotechnology Letters, 29 (4), 531-537. (IF = 1.60).

22.

Wutor V.C., Togo C.A., Limson J.L. and Pletschke B.I.* (2007). A novel biosensor for the detection and monitoring of ß-D-galactosidase of faecal origin in water. Enzyme and Microbial Technology, 40 (6), 1512-1517. (IF = 2.38).

21.

Wutor V.C., Togo C.A. and Pletschke B.I.* (2007) Comparison of the direct enzyme assay method with the membrane filtration technique in the quantification and monitoring of microbial indicator organisms - Seasonal variations in the activities of coliforms and E. coli, temperature and pH. Water SA, 33 (1), 107-110. (IF = 1.12).

20.

Beukes N. and Pletschke B.I.* (2006) Effect of sulfur-containing compounds on Bacillus cellulosome-associated 'CMCase' and 'Avicelase' activities. FEMS Microbiology Letters, 264 (2), 226-231. (IF = 2.02).

19.

Oyekola O., Pletschke B.* (2006) ATP-sulphurylase: An enzymatic marker for biological sulphate reduction? Soil Biology and Biochemistry, 38 (12), 3511-3515. (IF = 2.93).

18.

Togo C.A., Wutor V.C., Pletschke B.I.* (2006).Properties of in situ Escherichia coli ß-D-glucuronidase (GUS): Evaluation of chemical interference on the direct enzyme assay for faecal pollution detection in water. African Journal of Biotechnology, 5 (22), 2338-2344.

17.

Watson S.D. and Pletschke B.I.* (2006) The effect of sulfide on a-glucosidases: Implications for starch degradation in anaerobic bioreactors. Chemosphere, 65 (1), 159-164. (IF = 3.05).

16.

Mayende L., Wilhelmi B.S. and Pletschke, B.I.* (2006) Cellulases (CMCases) and polyphenol oxidases from thermophilic Bacillus spp. Isolated from compost. Soil Biology and Biochemistry 38 (9), 2963-2969. (IF = 2.93).

15.

Roman H.J., Burgess J.E. and Pletschke B.I.* (2006). Enzyme treatment to decrease solids and improve digestion of primary sewage sludge. African Journal of Biotechnology. 16 May 2006, 5 (10) 963-967.

14.

Jordaan J., Pletschke B.I. and Leukes W.D. (2004) Purification and partial characterization of a thermostable laccase from an unidentified basidiomycete. Enzyme and Microbial Technology 34, 635-641. (IF = 2.38).

13.

Watson S.D., Akhurst T., Whiteley C.G., Rose P.D. and Pletschke B.I.* (2004) Primary sludge floc degradation is accelerated under biosulphidogenic conditions. Enzymological aspects. Enzyme and Microbial Technology 34, 595-602. (IF = 2.38).

12.

Whiteley C, Pletschke B., Rose P., Tshivhunge S., Watson S. and Whittington-Jones K. (2004) Activation of proteases in an anaerobic sulphidogenic bioreactor. Biotechnology Letters 26, 55-59. (IF = 1.60).

11.

Whiteley C.G., Enongene G., Pletschke B.I., Rose P. and Whittington-Jones K. (2003). Co-digestion of primary sewage sludge and industrial wastewater under anaerobic sulphate reducing conditions: Enzymatic profiles in a recycling sludge bed reactor. Water Science & Technology 48, 129–138. (IF = 1.24).

10.

Whiteley C.G., Burgess J.E., Melamane X., Pletschke B., Rose P.D. (2003). The enzymology of sludge solubilisation utilising sulphate-reducing systems: The properties of lipases. Water Research, 37 (2), 289-296. (IF = 3.59).

9.

Whiteley C.G., Melamane X., Pletschke B., Rose P.D. (2003). The enzymology of sludge solubilisation utilising sulphate reducing systems: The role of lipases Water Science and Technology, 48 (8), pp. 159-167. (IF = 1.24).

8.

Melamane X., Pletschke B.I., Leukes W.D. and Whiteley C.G. (2002) Cleaning fouled membranes using sludge enzymes. Water SA (Spec. Iss) 28, 100-104. (IF = 1.12).

7.

Whiteley C., Pletschke B., Rose P. and Ngesi N. (2002) Specific sulphur metabolites stimulate ß-glucosidase activity in an anaerobic sulphidogenic bioreactor. Biotechnology Letters 24, 1509-1513. (IF = 1.60).

6.

Pletschke B.I.*, Rose P.D. and Whiteley, C.G. (2002) The enzymology of sludge solubilisation utilising sulphate reducing systems. Identification and properties of ATP-sulphurylases. Enzyme and Microbial Technology, 31, 329-336. (IF = 2.38).

5.

Whiteley C.G., Heron P., Pletschke B., Rose P.D., Tshivhunge S., Van Jaarsveld F.P. and Whittington-Jones K. (2002) The enzymology of sludge solubilisation utilising sulphate reducing systems. Properties of proteases and phosphatases. Enzyme and Microbial Technology 31, 419-424. (IF = 2.38).

4.

Steenkamp D.J., Weldrick, D.P., Pletschke, B.I. and Chodacka, B. (1998). Thiol metabolism of the trypanosomatids as potential drug targets. South African Journal of Science. 94, 281-283.

3.

Pletschke B.I., Naudé R.J. and Oelofsen W. (1995). Ostrich pepsins I and II: A kinetic investigation. International Journal of Biochemistry and Cell Biology 27, 1293-1302. (IF = 4.18).

2.

Pletschke B.I., Naudé R.J., Oelofsen W., Muramoto K. and Yamauchi F. (1995). Ostrich pepsinogens I and II: Purification, activation, and chemical and immunochemical characterization of the enzymes from the proventriculus. International Journal of Biochemistry and Cell Biology. 27, 613-624. (IF = 4.18).

1.

Van de Venter M., Pletschke B.I., Litthauer D., Roux S. and Oelofsen W. (1994) Comparison of the in vitro lipolytic response of human and hamster adipocytes. South African Journal Of Science. 90, 288-292.