Journal
TRENDS IN BIOTECHNOLOGY
Volume 19, Issue 9, Pages 340-348Publisher
ELSEVIER SCIENCE LONDON
DOI: 10.1016/S0167-7799(01)01705-X
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At present, microbial and enzymatic preparations for the control of triglyceride-containing pitch deposits during the manufacture of mechanical and sulfite paper is commercially available. However, biotechnological products for pitch control in other pulping processes, such as alkaline pulping, are underdevelopment. These products include new fungi for the removal of steroids involved in pitch deposit formation in chlorine-free pulps,to be used as a biological pretreatment of wood before pulping. Simultaneously, tailor-made enzymes are being produced using protein-engineering techniques, enabling the specific removal of pitch contaminant compounds from paper pulp.
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