Latest News Archive

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

UFS busy with exciting research into flavours and fragrances

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:

IP Commercialisation Fund Concept Note

The UFS Industry Engagement Fund Concept Note

News Archive

Moshoeshoe's legacy lives on in university's project: City Press - 2 May 2004

2004-10-14

CITY PRESS 2 MAY 2004 P8

NEWS

JOHANNESBURG FINAL

Moshoeshoe's legacy lives on in university's project

MATEFU MOKOENA

DRUMS were beaten and the sounds of traditional songs reverberated through corridors of the University of the Free State (UFS) as Basotho students gathered at the campus over the weekend to launch a project honouring their late great king, Moshoeshoe.

The launch was organised by the Lesotho Students Association and UFS management and was blessed by King Letsie III of Lesotho.

According to UFS rector and vicechancellor, Professor Frederick Fourie, the aim of the project is to make the legacy of Moshoeshoe a living part of the university.

He said the Moshoeshoe project will include a television documentary on his life as well as an anthology of creative writings, including prose and poetry, about him.

A television documentary is already being filmed and will be screened during an international conference at UFS in October.

Fourie said the university, as part of the project, is looking at the possibility of starting an annual Moshoeshoe memorial lecture that will focus on African leadership, nationbuilding and reconciliation.

He said the university would introduce a PhD-level research course into the life and legacy of Moshoeshoe.

The university management has also taken a decision to erect a statue of Moshoeshoe on the campus.

Fourie said the project was launched after the UFS delegation, led by him, met Letsie III.

"He wanted us to ensure the legacy of Moshoeshoe is honoured and treated with the respect he deserves."

His legacy "must live on -- not only for the Basotho, but for all South Africans, black and white, and for the entire African continent", he said.

"Living out such a legacy is indeed a fitting contribution to the New Partnership for Africa's Development (Nepad) and to the maturing democracy that is being built here in South Africa," said Fourie.

He emphasised Moshoeshoe was and remains a model of African leadership.

Fourie said Moshoeshoe's diplomacy and commitment to peace put him on a par with former president Nelson Mandela as a statesman.

It is Fourie's dream that, through this project, the UFS will be able to give real meaning to words such as reconciliation, respect for the diversity of languages and cultures and the unity that is needed to build a democratic nation.

The Lesotho Students Association secretary, Sofonea Shale, said for an institution like the UFS to honour Moshoeshoe demonstrates that he was a great leader. "For Basotho students, the project is very significant as it clearly defines who we are and what we stand for.

"We believe the research into the legacy of our great king Moshoeshoe will open doors for more research into the life of Basotho in general.

"Africa as a whole can learn from his leadership style," he said.

Back

Economic and Management Sciences

Education

Health Sciences

The Humanities

Law

Natural and Agricultural Sciences

Theology and Religion

Open Distance Learning

Business School

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