Please use this identifier to cite or link to this item: http://hdl.handle.net/10321/3183
Title: Production of chitosan and lipids from a newly isolated Mucor circinelloides
Authors: Zininga, Johnson Tungamirai 
Issue Date: 2018
Abstract: Filamentous fungi are well-known sources of a wide variety of industrially-useful biomolecules. This study demonstrates the applicability of a newly isolated oleaginous fungi Mucor circinelloides ZSKP for lipid and chitosan production. Parameters affecting co-production were identified and were statistically optimized, which resulted in a 3–fold improvement in lipid production. The lipid profile showed a high content of unsaturated fatty acids including oleic, linolenic and linoleic acids, while palmitic acid was the major saturated fatty acid (21%). A comparative study to evaluate the efficacy of enzymatic and chemical treatments for biodiesel production from fungal lipids and sunflower oil revealed slightly enhanced production of biodiesel from fungal lipids, using a commercial lipase. The biodiesel synthesized using lipids from M. circinelloides ZSKP satisfied standard specifications and had a higher cetane number (56), lower kinematic viscosity (4.6 mm2/s) and lower acid number (0.03) compared to sunflower oil. Upon optimizing chitosan production and extraction processes the chitosan production was improved 2-fold. The fungal chitosan showed antimicrobial properties and was more effective against Aspergillus niger A chitosan spray was developed which was able to increase the shelf life of fresh fruit produce. These results indicate that Mucor circinelloides ZSKP is a promising candidate for concurrent production of lipids and the versatile bio-polymer chitosan.
Description: Submitted in complete fulfillment for the Degree of Master of Applied Science in Biotechnology, Durban University of Technology, Durban, South Africa, 2018.
URI: http://hdl.handle.net/10321/3183
Appears in Collections:Theses and dissertations (Applied Sciences)

Files in This Item:
File Description SizeFormat 
ZININGAJT_2018.pdf2.23 MBAdobe PDFThumbnail
View/Open
Show full item record

Page view(s)

217
checked on Feb 15, 2019

Download(s)

44
checked on Feb 15, 2019

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.