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11 July 2022 | Story Andre Damons | Photo Supplied
Prof Martie Smith and Prof Drik Opperman
Prof Martie Smit and Prof Dirk Opperman in the Department of Microbiology and Biochemistry filed a patent entitled “Process for the chemical modification of alkanes, fatty acids and fatty alcohols”.

Flavours and fragrances have a wide application in the food, feed, cosmetic, chemical and pharmaceutical sectors. Many flavour compounds are still produced via chemical synthesis or via extraction from plant or animal sources. However, there is increasing interest in their bio-production or the use of flavour compounds of (micro) biological origin. 

One reason for this shift is that chemical synthesis often uses environmentally unfriendly processes. Chemical synthesis usually also produces racemic mixtures with the second enantiomer, mirror image of the looked-for compound, often having undesirable organoleptic properties. Furthermore, the consumer has developed a “chemophobia”-attitude towards synthetic chemical compounds, especially when related to food and home-care products.  This applies even to nature-identical compounds – products that occur in nature but are produced via a non-natural chemical process. Products produced with the use of enzymes or microbes from “natural” substrates can be labelled “natural”. The flavour and fragrance industry thus pay higher prices for such products labelled as “natural”.  

The invention

A University of the Free State (UFS) team, led by Prof Martie Smit and Prof Dirk Opperman in the Department of Microbiology and Biochemistry are conducting exciting research in this area. They filed a patent entitled “Process for the chemical modification of alkanes, fatty acids and fatty alcohols”.  

The invention relates to a process for the enzymatic in-chain hydroxylation of C12 to C16 fatty acids, alcohols, and alkanes. Hydroxylation of C12 fatty acid and alcohol provides routes for the synthesis of “natural” δ-dodecalactone. The advantage of these routes is that they do not rely on massoia lactones. Massoia lactones are derived from the bark of Massoia trees which grow in Indonesia. Harvesting of the bark kills the trees.  

The cytochrome P450 enzymes (P450s) claimed in this patent are to the inventors’ knowledge the most regioselective enzymes described thus far that can be used for the synthesis of δ-dodecalactone from lauric acid or 1-dodecanol. The approach that the technology takes is to claim cytochrome P450 enzymes that share 70 % amino acid identity to a set of selected P450s for the regioselective hydroxylation of lauric acid and 1-dodecanol to synthesise δ-dodecalactone.

Still in early stage

The current state of development is early stage with the technology only demonstrated in the laboratory on a small scale (100-200 ml). Before the technology can be commercialised the team would need to further improve the regioselectivity and stability of the P450s and proof that the reactions can be scaled up in bioreactors. The technology will probably be delivered as an enzyme (amino acid sequence) with the desired properties. 

There are other research groups working on a synthetic biology approach for the de novo synthesis of δ-dodecalactone from glucose by genetically engineered microbes. It is still unclear how such a process will compare in terms of product yields, economics and environmental impact with the processes proposed by the UFS patent.

If the team had to partner with a commercial company, their first choice would be to work with an established flavour and fragrance company. Another possibility would be the small French flavour and fragrance company that Dr Alizé Pennec, the post-doc and co-inventor who initially discovered the unique P450 activity, is working for.

Please view the videos for more information on patents.

The Vice-Rector: Research and Internationalisation has released two new calls for applications for funding. Academic staff and researchers are encouraged to submit applications for these funds. At this stage we are not accepting projects from Research Fellows. 

The two funds are: 

1.  The Industrial Engagement Fund 
2.  The Intellectual Property Commercialisation Fund

Each fund has its own guidelines and application process. The guidelines are attached. The applications must be filled in on RIMS.

The RIMS application forms can be found through this link

For more information please click the documents below:



News Archive

UFS hosts Commonwealth universities
2005-08-25

The University of the Free State (UFS) in Bloemfontein will host delegates from 14 universities across the Commonwealth next week as part of a programme to measure and promote excellence in university management.

The workshop will be held from Monday, 29 August to Wednesday, 31 August 2005 as part of the Commonwealth University Management Benchmarking Programme, run by the Association of Commonwealth Universities (ACU).

It is the first time that the UFS will host the workshop and the second time that it is held in South Africa. 

“The purpose of the programme is to promote and measure excellence in university management.  Unlike other university benchmarking programmes that focus on matters such as research output, the programme run by the ACU follows a process benchmarking approach and aims to identify and promote best practice and quality assurance,” said Prof Magda Fourie, Vice-Rector: Academic Planning at the UFS.

According to Prof Fourie the programme runs on an annual basis and works on a quality improvement cycle.  Every year certain areas of university management are evaluated by a panel of international assessors.  This year it focuses on strategic planning, recruitment and retention of staff, and branding. 
If weaknesses are identified, plans are compiled which should result in  an upward spiral of continued quality improvement.

“The UFS has been taking part in the programme for the past five years.  Last year we fared particularly well with the evaluation of our change management and engagement with the community,” said Prof Fourie. 

“The ACU benchmarking programme is a useful forum in which we can measure ourselves against  our peers.  It will also help us to prepare for the audit of the effectiveness of our quality assurance policies and systems, which will be conducted in October 2006 by the Higher Education Quality Committee (HEQC) of the Council for Higher Education (CHE),” said Prof Fourie.

Other universities that will take part in the workshop include the Leeds Metropolitan University, the University of Glamorgan in the United Kingdom, the University of Northern British Columbia in Canada, the Central Queensland University, the Monash University in Australia, and the University of the Witwatersrand (Wits).


Media release
Issued by:  Lacea Loader
   Media Representative
   Tel:  (051) 401-2584
   Cell:  083 645 2454
   E-mail:  loaderl.stg@mail.uovs.ac.za
25 August 2005
 

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