Volume 27, Issue 5 (9-2023)                   IBJ 2023, 27(5): 8-8 | Back to browse issues page

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Hajhosseini A, Sharifan A, Eftekhari Z, Alavi A, Doroud D. Optimal Extraction and Deproteinization Method for Mannoprotein Purification from Kluyveromyces marxianus. IBJ 2023; 27 (5) :8-8
URL: http://ibj.pasteur.ac.ir/article-1-3200-en.html

Background: Mannoproteins, mannose-glycosylated proteins, play an important role in biological processes and have various applications in industries. Several methods have been already used for the extraction of mannoproteins from yeast cell-wall. The aim of this study was to evaluate the extraction and deproteinization of mannan oligosaccharide from the K. marxianus mannoprotein.
Methods: To acquire crude mannan oligosaccharides, K. marxianus mannoproteins were deproteinized by the Sevage, TCA, and HCL methods. Total nitrogen, crude protein content, fat, carbohydrate and ash content were measured according to the monograph prepared by the meeting of the Joint FAO/WHO Expert Committee and standard. Mannan oligosaccharide loss, percentage of deproteinization, and chemical composition of the product were assessed to check the proficiency of different methods.
Results: Highly purified (95.4%) mannan oligosaccharide with the highest deproteinization (97.33 ± 0.4%) and mannan oligosaccharide loss (25.1 ± 0.6%) were obtained following HCl method.
Conclusion: HCl, was the most appropriate deproteinization method for the removal of impurities. This preliminary data will support future studies to design scale-up procedures.
Type of Study: Full Length | Subject: Related Fields

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