Please use this identifier to cite or link to this item: http://dspace.unimap.edu.my:80/xmlui/handle/123456789/27671
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dc.contributor.authorSiti Nadherah, Mohamad-
dc.date.accessioned2013-08-26T08:50:35Z-
dc.date.available2013-08-26T08:50:35Z-
dc.date.issued2012-06-
dc.identifier.urihttp://dspace.unimap.edu.my/123456789/27671-
dc.descriptionAccess is limited to UniMAP community.en_US
dc.description.abstractFeathers are by-product waste of poultry processing plant and in this research the protein hydrolysate production was investigated. Culture medium for protein hydrolysate production from feather by Aspergillus terreus UniMAP AA-1 was optimised. Effect of culture conditions on protein hydrolysate were tested and optimal results were obtained with a culture volume of 100 mL, culture pH value was 7.5, culture temperature was 35 °C and inoculums size of spore suspension was 2.5x108. To improve protein hydrolysate yield, statistically based experimental designs were applied to optimize the culture medium. 2-level factorial design experiments showed that from three parameters involved which was feather concentration, concentration yeast extract and concentration of K2HPO4, only feather concentration and concentration of K2HPO4 were the most significant factors affecting protein hydrolysate production. Furthermore, central composite design experiments indicated that the optimal feather concentration and concentration of K2HPO4 were 1.75 mg/mL and 0.1 mg/mL. In order to obtain the optimal protein hydrolysate concentration at 0.669 mg/mL, optimised fermentation mediums (mg/mL) such as KH2PO4 concentration, MgSO4 concentration and NaCl concentration were used at value of 0.8 mg/mL, 0.2 mg/mL and 1.0 mg/mL. Feather was degraded during submerged cultivating. The keratinous waste can be biologically degraded by enzymes or the microbe itself to form useful products.en_US
dc.language.isoenen_US
dc.publisherUniversiti Malaysia Perlis (UniMAP)en_US
dc.subjectChicken featheren_US
dc.subjectKeratinolytic microorganismsen_US
dc.subjectProtein hydrolysateen_US
dc.subjectAspergillus terreusen_US
dc.titleChemical parameter optimization of feather protein hydrolysate production by Aspergillus terreus UniMAP AA-1 using submerged fermentationen_US
dc.typeLearning Objecten_US
dc.contributor.advisorSyazni Zainul Kamalen_US
dc.publisher.departmentSchool of Bioprocess Engineeringen_US
Appears in Collections:School of Bioprocess Engineering (FYP)

Files in This Item:
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Abstract, Acknowledgement.pdf210.66 kBAdobe PDFView/Open
Introduction.pdf32.6 kBAdobe PDFView/Open
Literature review.pdf135.05 kBAdobe PDFView/Open
Methodology.pdf239.54 kBAdobe PDFView/Open
Results and discussion.pdf622.21 kBAdobe PDFView/Open
Conclusion.pdf29.24 kBAdobe PDFView/Open
Reference and appendix.pdf442.47 kBAdobe PDFView/Open


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