Ndayambaje Jean Bernard*, Habarurema Gratien, Habinshuti Janvier, Ingabire Angelique, Ingabire Ange Sabine, Martin Patrick Ongol and S Meenakshisundaram
The isolation of phytase using Pichia Pastoris under methanol/sorbitol co-feeding induction technique was investigated. The biological activity of extracellular phytase after optimization with co-substrates induction in 4 liters fermentor (NBS) increased to 13250 U/ml. This led to a 509 fold increases in comparison to the other type of phytase. This effect was studied via induction with sorbitol/methanol in fermentation by Pichia Pastoris GS115 (Mut+) at 20 °C. The interference of by products; methylal, hexamine and (S)-(+)-1,2-propanediol with release of phytase in Pichia Pastoris under methanol induction were detected and cannot be repressed by methanol induction alone. The TLC was used for glycerin analysis under methanol/sorbitol induction and the results were lesser compare to that obtained during phytase production under methanol induction alone. This work showed the higher expression of heterologous proteins and by fed batch fermentation; the expression identified an advantage of producing a significant activity of phytase.
Practical applications
Plant derived products including sorbitol have been used as alternative medicines for the therapeutic treatment of various diseases, food supplements and could be used in many manufacturing processes. It serves as a culture media for bacteria, and helps to distinguish the pathogenic E. coli O157:H7 from its most other strains. Cells growing on methanol require high oxygen consumption. Sorbitol was used as an alternative cheap co-feeding for the production of proteins and is a non-repressing carbon source for AOX1 promoter with no effect on the level of r-protein at its induction phase. This report describes the isolation of phytase using Pichia Pastoris under methanol/sorbitol co-feeding induction techniques, and sorbitol showed to be a promising co-substrate, as it could enhance both cell growth and targeted protein productivity. This co-feeding and fed-batch induction technique was used for recombinant phytase production in a small and large scale production and the metabolites were analyzed.
One of the major challenges for vaccine producing companies is having favourable conditions for efficient expression system for living organisms in order to produce biologicals. Several companies across the globe looking for several alternative sources for better yield through efficient expression based system.
The submission is very easy and the time from submission to response from the reviewers is short. Correspondence with the journal is nice and rapid.
Catrin Henriksson
In 2017, I submitted a manuscript to the journal Archives of Biotechnology and Biomedicine belonging to Heighten Science Publications Corporation. Within one week I already received the response from ...
University of Tubingen, Germany
Yvonne Mast
To the editorial team at HSPI and the Journal of Clinical Nephrology:
Thank you so much for your hard work and collaboration in bringing our article to life. Your staff was responsive, flexible, and ...
Alejandro Munoz
I am to express my view that Heighten Science Publications are reliable quick even after peer review process. I hope and wish the publications will go a long way in disseminating science to many inter...
College of Fisheries, CAU(I), Tripura, India
Ajit Kumar Roy
“It was a delightful experience publishing my manuscript with the Clinical Journal of Obstetrics and Gynecology. They offered me lots of opportunities I never had from most publishing houses and the...
Department of Agricultural Economics, Agribusiness...
Akowuah Jones Asafo
I think that Heighpubs very good. You are very helpful. Thank you for everything.
Ana Ribeiro
“It was a delightful experience publishing my manuscript with the Clinical Journal of Obstetrics and Gynecology. They offered me lots of opportunities I never had from most publishing houses and the...
Asafo Jones
It was a real pleasure working with your team. The review was done fast, and it was very clear, the editing was flawless, the article was published quickly compared to other journals, and everyone w...
Alexandra Cozma
“The choice to submit the forensic case study to the Journal of Addiction Therapy and Research was dictated by the match between the content and the potential readership. The publication process pro...
Elisabeth H Wiig
"It was a pleasure to work with the editorial team of the journal on the submission of the manuscript. The team was professional, fast, and to the point".
HSPI: We're glad you're here. Please click "create a new Query" if you are a new visitor to our website and need further information from us.
If you are already a member of our network and need to keep track of any developments regarding a question you have already submitted, click "take me to my Query."