Latest News Archive

Please select Category, Year, and then Month to display items
Previous Archive
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

‘Your capacity for change is limitless’
2013-09-13

 

Ready for the world - students taking part in the 2013 Leadership for Change programme getting ready to travel to universities in the USA, Europe and Asia.
Photo: Johan Roux
12 September 2013

 “You will change this campus, city, country, continent and the world, because you have the capacity for greatness,” Prof Jonathan Jansen, Vice-Chancellor and Rector of the University of the Free State (UFS), said.

He addressed the 2013 group of first-year students in the Leadership for Change programme at a farewell function before they will leave for universities abroad. The first 104 students from the 2013 total of 144 will depart on 18 September and return on 3 October 2013. The second group of 40 students will be abroad from 11 to 25 January 2014. The students are from the Bloemfontein and Qwaqwa Campuses. They will be accompanied by mentors from the UFS.

The students will visit 17 universities in the USA, Europe and Asia.

The first 71 first-year students in the Leadership for Change programme were sent abroad for two weeks in September 2010 to get intense exposure to the academic, social, cultural and residential lives of students in the USA. In 2011 the student number more than doubled and universities in Europe were included. In July 2012 the programme brought students from around the globe to the UFS for the Global Leadership Summit.

Prof Jansen inspired the young leaders, saying, “If you learn leadership values in your four years of study, a change will come. Build the new value system and take it into the country. Your capacity for change is limitless.”

He encouraged them to learn to know the stranger, not only abroad, but also the beggar at the street corner. “Learn to be comfortable with the beggar, as well as with the professor in the classroom.”

A stringent evaluation and training programme preceded the group’s visit abroad, and Prof Jansen could not formulate their achievement better: “I cannot tell you how proud I am of you.”

We use cookies to make interactions with our websites and services easy and meaningful. To better understand how they are used, read more about the UFS cookie policy. By continuing to use this site you are giving us your consent to do this.

Accept