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Title: Wheat Bran as Substrate for Enzyme Production & its Application in the Bio-deinking of Mixed Office Waste (MOW) Paper
Authors: Biswas P.
Bharti A.K.
Dutt D.
Kadam A.
Martin A.
Lucian A.
Published in: BioResources
Abstract: Judicial utilization of various low-cost agro-industrial wastes and optimization of various process parameters can reduce production costs of enzymes. Wheat bran was found to be the best carbon source for Penicillium citrinum NCIM-1398. Additionallu, ammonium sulphate was found as the optimum nitrogen source at moisture content 70%, pH 5..5, and temperature 30°C for enzyme production. The maximal enzyme activities of endo β-1,4-glucanase, FPase, and amylase were 21.0 IU/gds, 3140 IU/gds, 3.59 FPU/gds, and 73.4 IU/gds, respectively. Bio-deinking of mixed office waste paper improved the pulp brightness by 9.5%, and the effective residual ink concentration were decreased by 26.3% in comparison to MOW after pulping. Similarly, dirt coints were reduced from 4880 to 1360 ppm at an enxyme dose of 6.0 IU/g compared to deinking without enzyme. The strength properties of enzymatically deinked pulp such as tear index, tensile index, and burst index increased by 6.92%, 11.31%, and 7.61%, respectively, compared with the control.
Citation: BioResources (2019), 14(3): 5788-5806
Issue Date: 2019
Publisher: North Carolina State University
Keywords: Wheat bran, Endo β-1,4-glucanase, Xylanase, White mixed office waste (MOW) paper, Bio-deinking
ISSN: 1930-2126
Author Affiliations: Biswas, P., Bharti, A.K., Kadam, A., Dutt, D., Department of Paper Technology, Indian Institute of Technology Roorkee, Saharanpur Campus, Saharanpur, Uttar Pradesh, 247 001, India
Corresponding Author: Biswas, P.; Department of Paper Technology, Indian Institute of Technology Roorkee, Saharanpur CampusIndia; email:
Appears in Collections:Journal Publications [PT]

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