Bio-glycerol can be produced in high glucose concentrations using osmo-tolerant yeasts.
Conventional methods of producing glycerol requires a steering agent that traps aldehyde group in glucose or fermentation at near neutral or above pH.
Though these fermentations produced glycerol, the yields never increased above 30% of the metabolised glucose and there are bi-products formation such as
ethanol, acetic acid, acetaldehyde etc. Advancements in isolating osmotolerant yeasts and genetical modifications resulted in conversion efficiencies around 40%.
Bio-glycerol is gaining attention due to the consumer demand for non-petroleum derived products and also because of its potential to be feedstock for microbial chemicals
production e.g. 1,3 PDO.
How Celignis Can Help
Our team includes a number of fermentation experts who can work with you on the best process conditions for producing
biomass-derived glycerol in high concentrations.
We can also evaluate the suitability
of your process liquids for fermentation and, if necessary, can suggest
ways by which they can be detoxified in order to ensure that the sugars present in the hydrolysate are effectively utilised by the yeast.
There are 3 main types of processes for the fermentation of sugars to bioethanol: 1. Separate hydrolysis and fermentation (SHF); 2. Simultaneous saccharification and fermentation (SSF);
3. Simultaneous saccharification and co-fermentation (SSCF). SHF allows both enzymes and yeast operate at their optimum conditions, but is limited with
product inhibition to enzymes and feed inhibition to yeast. This is overcome in SSF and SSFC fermentation where the enzymatic product glucose
is consumed by yeast as it is produced. High solids loading fermentation with ethanol-tolerant yeast strains allows production of high concentrations of ethanol.
High-solids fermentation causes viscosity issues and hence suitable fermentation regimes and mixers should be designed in order to obtain maximum ethanol concentrations,
yields and productivity.
At Celignis we can use a variety of yeast types to produce bioethanol and can undertake and optimise each of these three main fermentation processes.
Some yeast and fungal strains are capable of producing lipids in a variety of substrates such as different types of sugars,
glycerol, etc. and have wide pH ranges. SCOs are edible oils if they are produced in clean substrates and can be converted to biofuel if industrial by-product streams
are used for their production.
Get in touch with us if you would like to learn more about how we can produce SCOs from your biomass and process liquids.
The type, quality and quantity of emulsifier depends on microbial strain, carbon source, media components such as major and minor elements, temperature, pH etc.
It is important to optimise the process for product quality and quantity. This is only possible with the through understanding of microbial strain, its metabolism and needs.
Our experts can guide you through and optimise the process.
Get in touch with us if you would like further information.
Bacteria are mainly used to produce organic acids and alcohols by anaerobic fermentation and enzymes by aerobic fermentation processes.
Very well-known natural fermenters are lactic acid bacteria (LAB) for lactic acid production and Bacillus species such as B. subtilis,
B. amyloliquefaciens, B. licheniformis, B. megaterium etc. for the production of enzymes, antibiotics, surfactins, and biopolymers.
Algal cultivation is complicated and requires optimisation to achieve high biomass yields. Algal biomass production depends on nutrient uptake and
other environmental conditions such as temperature, pH, salt concentration etc. It is important to select the strain based on the type of
production (open ponds, photobioreactors), feedstock and application. We have particular expertise in the evaluation and optimisation of algae thorugh
our Chief Innovation Officer, Lalitha, who is currently undertaking a Marie-Curie funded project at Celignis on this topic.
We are available to answer any questions you may have on how to get high value chemicals and biofuels from biomass through fermentation processes.
Just get in touch with us by sending us an email info@celignis.com, giving us a call at (+353) 61 371 725, or through
our contact form.
Celignis is a Partner in 3 Successful Proposals for EU Funding
We are pleased to announce that three of the proposals involving Celignis, submitted to the CBE-JU programme for funding collaborative biomass research in Europe, were successful. These projects will provide an additional funding of €1.5m to Celignis and build on our achievements in other CBE and EU projects. In particular, the projects are all at enhanced TRLs (6/7) and will use our existing Celignis Bioprocess infrastructure and will also fund further development of our bioprocessing capacities and the Bioprocess Development Services we offer our clients.
Details on the funded projects are provided below:
BIONEER - This project was funded under CBE-JU topic IA-06 and focuses on the TRL 6/7 production of biobased platform chemicals. Celignis's activities in the project focus on scaling up the work undertaken in our ongoing
Celignis to Exhibit and Present at Major Biochar Event
The 2024 North American Biochar Conference will take place in Sacramento, California, on Feb 12-15
On Feb 12-15 we'll be exhibiting at the 2024 North American Biochar Conference, taking place at the SAFE Credit Union Convention Centre in Sacramento, California.
We're looking forward to interacting with the 1000+ expected attendees, outlining our extensive range of analytical and application testing services for biochar.
Celignis CIO Lalitha Gottumukkala will also be a member of the expert panel focused on developing improved laboratory methods for biochar characterisation.
This Networking Event Will Involve Discussions on Collaborations for Proposals to the 2024 CBE-JU Topics
The Circular Bioeconomy Europe Joint Undertaking (CBE-JU) is an organisation that funds biomass research in Europe at various Technology Readiness Levels (TRLs). Since 2016 Celignis has been an active participant in a number of projects funded by the CBE-JU.
The Biobased Industries Consortium (BIC) is the steering committee that helps to steer the focus of research for the CBE-JU programme. In 2023 Celignis joined the BIC as a Full Industry Member and participated in several proposals submitted for different research topics in the CBE-JU's 2023 Work Programme.
We're Hiring - Business Administration & Client Relationship Manager
This position will involve working closely with senior management, fostering existing and new client relationships.
Situated in Limerick, Ireland, Celignis currently operates at two centres, Celignis Analytical and Celignis Bioprocess, actively engaging in a variety of private and public bioeconomy projects. As we continue to expand, we're looking to strengthen our team of 14 with a Business Administration and Client Relationship Manager who can bring a blend of enthusiasm and expertise.
This position will involve working closely with senior management, fostering existing and new client relationships, and ensuring successful delivery of our services, playing a key role in our ongoing growth and success.
Celignis to Sponsor and Present at Major Biochar Event
The event takes place on May 3rd at Carrick-on-Shannon
We are pleased to announce that, on May 3rd, Celignis will be presenting and exhibiting at the National Biochar and Carbon Products Conference 2023, which is taking place in Carrick-on-Shannon in County Leitrm, Ireland.
This conference is being organised under the auspices of the Interreg Northwest Europe-funded THREE C Project, entitled 'Creating and sustaining Charcoal value chains to promote a Circular Carbon economy in NWE Europe'.
The conference will highlight both Irish stakeholders who are currently working in the biochar and carbon products sector, but also partners from the THREE C project (covering Netherlands, Luxembourg, Germany, Belgium, France and Wales, as well as Ireland) who have interesting stories and products to share.
Thanks for contacting us. One of our representatives will be in contact with you shortly regarding your inquiry. If you ever have any questions that require immediate assistance, please call us at +353 61 371 725.
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