Agriculture & Environment
Prof. John H. Muyonga Delivers Professorial Inaugural Lecture
Theme: Circular Bio-economy: Applications to the Agri-food Sector
In his Lecture, Prof. John H. Muyonga highlighted the nutritional value of waste from agri-food products and explained the measures that can be taken to minimize wastage
The Inaugural Lecture
A lot of what is thrown away as waste from agri-food products contains nutrients that are crucial for the body’s immunity. This was revealed by Prof. John H. Muyonga during his Professorial Inaugural Lecture held on 23 June 2023 at the Yusuf Lule Central Teaching Facility, Makerere University. Organized under the theme: Circular Bio-economy: Applications to the Agri-food Sector, the lecture was graced by the University Top Management led by the Vice Chancellor, Prof. Barnabas Nawangwe, and attended by academics and administrators from the 10 Colleges of Makerere, as well as the family of Prof. Muyonga. Prof. Muyonga.
The health benefits of waste from agri-food products
In his presentation, Prof. John H. Muyonga, a Professor of Food Science at the Department of Food Technology and Nutrition, College of Agricultural and Environmental Sciences (CAES), Makerere University revealed that waste of plant origin contains nutrients and a wide diversity of non-nutrient compounds (phytochemicals), that are associated with health benefits. “The non-starch polysaccharides from fruits, vegetables and whole cereals help prevent cancer, hypertensive, hypoglycemic, and hypochloresterol. Carotenoids found in coloured fruits and vegetables equally prevent hypertensive, cancer, obesity, and support vision. The phytosterols in cereals and legume cereals bran serve as antioxidants and help in the prevention of colon cancer and hypochloresterol effect, hypertensive, pytic acid, and kidney stone formation,” Prof. Muyonga explained, further highlighting valuable components of waste from selected food crops. Citrus peels and seeds contain Pectin, essences, ethanol, D-limonene, limonoids and flavonoids. Mango peels and kernels contain fibre, vitamins, carotenoids and polyphenols, kernal fat and pectin. Passion fruit seeds and rind contain pectin and linoleic acid. Banana peels have phenolics, beta-carotenoids, anthocyanins, fiber, amino acids, polyunsaturated fatty acids, vitamins, flavonoids and potassium, whereas Avocado seeds and peels contain carbohydrates, proteins, lipids, fibres, minerals, phenolics, flavonoids, and fatty acids. Prof. Muyonga also highlighted a number of valuable components in waste from animal-based foods emphasizing the need to minimize wastage. According to Prof. Muyonga, increased adoption of circular bio-economy principles can help minimise wastage. Circular bio-economy entails reuse of as much bio-waste as possible, resulting in multiple value added products from a given volume of harvested biomass. Circular bio-economy can be used to explore the use of waste streams as raw materials for products such as new food products, feed, fuel, industrial ingredients, bio-plastics, biopharmaceuticals, bio-cosmetics, enzymes, nutritional supplements, nutraceuticals, materials for tissue repair, plasma substitutes, microbes and adsorbents. Circular bio-economy decreases dependency on natural resources by encouraging sustainable goods that generate food, feed, materials and energy using biological resources.
Minimising wastage of agri-food products
During his 26 years at Makerere University, Prof. Muyonga has been key in developing research capacity on previously under researched foods including grain amaranth, jackfruit, pumpkins, Solanum anguivi (katukuma), and Nile perch, among others. Working with a number of partners, he has conducted research and come up with various technologies to minimize wastage in agri-food products. Given the Nutraceutical properties of jackfruit pulp, he has conducted research and developed protocols for drying jackfruit pulp using the Refractance Window Drying technology. He has conducted studies on pumpkin and produced shelf stable flours from seed and pulp of pumpkins. Flour from the seeds is high in phytochemicals and it is recommended for weight control. Together with his research team, they have processed sweetpotato products into shelf-stable value added products. He has also conducted research on jackfruit pectin. The work entailed extracting pectin from jackfruit and assessing its properties. He also worked on the production and utilisation of passion fruit powder. Other key activities included; Tamarind seed analysis and utilisation- Tamarind seed powder was found to be suitable for use as ingredient to enhance nutraceutical properties of juices and cookies; Nile Perch collagen and gelatin studies – Collagen has a unique amino acid profile that gives it peculiar properties, including the ability to form gels when dissolved in water; Nile Perch oil extraction and Characterisation- Fish oils are rich in omega 3 fatty acids. Omega 3 fatty acids contribute to brain development and protection against cardiovascular diseases, breast, colon and prostate cancer, inflammation, depression, pain and psychosis. He also worked on characterisation of cassava leaf, processing and utilisation. Cassava leaves were found to be high in proteins, carbohydrates, beta-carotene, polyphenols and ascorbic acid.
Future plans
In future, Prof. Muyonga intends to work on the characterization of by-products from more agri-food materials produced in Uganda. He also hopes to work on the application of novel and sustainable technologies in agri-food waste valorisation to improve extraction efficiency, efficacy and limit environmental impact; and to evaluate new applications of components of agri-food waste – e.g. in bio-based packaging and bio-preservation. Prof. Muyonga also plans to undertake policy and techno-economic analysis of valorisation options.
Remarks by the Vice Chancellor
According to Makerere University Vice Chancellor, Prof. Barnabas Nawangwe, an inaugural lecture is an occasion of significance in an academic staff member’s career at the university. It provides professors with the opportunity to share their achievements in research, innovation, engagement and teaching activities before an audience of members of the University community and the general public.
In his address, Prof. Nawangwe congratulated Prof. Muyonga for making all necessary preparations to deliver his Professorial Inaugural Lecture. “This is the way to go as we continue to boost our scholarship, image and reputation. The Professorial Inaugural Lecture should act as an inspiration to all of us as scholars to not only learn but also continuously disseminate our work. I want to implore other colleagues at the rank of Professor in the University to emulate Prof. Muyonga and also deliver their Professorial Inaugural Lectures.” The Vice Chancellor commended CAES for spearheading the initiative leading to Prof. Muyonga’s presentation and applauded the Professorial Inaugural Lectures Organising Committee (PILOC) led by Prof. David Bakibinga for a job well done in preparing for this event. Highlighting the significance of Prof. Muyonga’s lecture focus, “Circular bioeconomy: Applications to the agri-food sector”, the Vice Chancellor noted that it was quite novel and contemporary, testifying that Makerere University possesses the competencies and capacities to substantially address the national and global development challenges. “Our science, creation of new knowledge and innovations in this field will be crucial for national stability cognizant of Uganda’s rapid population growth and high levels of youth unemployment. As a premier university, we should harness the emerging opportunities including artificial intelligence which appears to be a game changer to find practical solutions to complex societal challenges at multiple scales,” he explained.
Remarks by the DVCAA
In his remarks, the First Deputy Vice Chancellor in charge of Academic Affairs, also host of the Professorial Inaugural Lectures, Prof. Umar Kakumba said Prof. Muyonga’s research works had demonstrated Makerere’s commitment and contribution to the realization of the national and global development agendas. “As academics, we have a duty to think and address the needs of the growing population, projected to reach 60 million in 2030 and 102 million in 2060. The research done by Prof. Muyonga contributes to the realization of the SDGs2,3,9,12 aimed at reducing hunger; ensuring good health and wellbeing, generating employment and income through innovation; and reversing the current consumption trends as well as promoting a more sustainable future.”
Prof. Muyonga’s biography
Prof. Muyonga holds a PhD in Food Science from the University of Pretoria, M.Sc. Food Science from Cornell University and a B.Sc. Food Science and Technology from Makerere University. He became full Professor of Food Science of Makerere University in 2010, and has served as Faculty at Makerere University since 1997. Prof. Muyonga was Head of the Department of Food Science and Technology from 2006 to 2011, during which period the Department transformed to the now School of Food Technology, Nutrition and Bioengineering and served as the pioneer Dean of the School. He has published over 80 peer reviewed journal articles, mainly in areas of nutraceutical and physico-chemical properties of traditional Ugandan foods, improvement of traditional food handling and processing methods, extrusion technology, novel drying techniques and agri-food waste valorisation. Prof. Muyonga serves as Associate Editor of two (2) international journals and his work has been cited in over 3,900 articles.
Prof. Muyonga has played critical roles in the development of capacity for food science and nutrition research and research translation in Uganda. He has led more than twenty (20) research and consultancy projects and raised over 20 million US$ for research, technology translation and institutional development. He has been key in developing research capacity on previously under researched foods including grain amaranth, jack fruit, pumpkins, Solanum anguivi (katukuma), and Nile perch, among others. As a university administrator, Prof. Muyonga coordinated the implementation of several institutional development initiatives, including a NORAD funded institutional development project for Makerere University’s Department of Food Science and Technology and the setting up of a Technology and Business Incubation Centre at Makerere University.
Under his leadership, the Department of Food Science and Technology and the School of Food Technology, Nutrition and Bioengineering initiated four (4) new degree programmes, registered great improvement in research infrastructure, greatly increased graduate students’ enrolment and graduation rates, markedly increased output of peer reviewed research articles and supported commercialisation of dozens of new food products. He has served on several boards, advisory and technical committees, and is currently Chair of the Management Committee of the National Agricultural Research Laboratories, as well as board member of Volunteer Efforts Development Concerns. Prof. Muyonga is a Fellow of the Uganda Academy of Sciences and professional member of the Institute of Food Technologists (USA). He was the 2009 TWAS young scientist, is an alumnus of the Global Young Academy, UN University and TWAS affiliate programme. He was previously member of the scientific advisory committee of the Bill and Melinda Gates funded Banana Biotechnology Programme and served as Technical Evaluator for the World Bank African Centres of Excellence for Central and Western Africa and for the European Commission research programmes. Prof. Muyonga is also a Rotarian and has served in several roles in his club (Rotary Club of Kampala North). He is a Paul Harris Fellow (PHF+3) and is actively engaged in numerous Rotary projects supporting the underserved.
Agriculture & Environment
Africa Climate Collaborative at Makerere University Launches Youth Skilling Program to Catalyse Enterprise Development
By Damali Mukhaye
The Africa Climate Collaborative at Makerere University, an initiative supported by the Mastercard Foundation, has launched an inclusive Youth Skilling Program aimed at equipping young people with practical, market-driven skills to unlock business opportunities and contribute to climate resilience.
The Program will begin with a pilot of fifty (50) youth selected from Lwengo, Rakai and Yumbe districts, forming the first group of a planned 500 young people to be trained over the eight-year implementation period. The initiative targets youth who have completed at least Senior Four or its equivalent but have not enrolled for or completed university education.
For the first group, the youth will receive intensive hands-on training across the poultry value chain, enabling participants to develop climate-smart enterprises, create employment opportunities and strengthen their livelihoods.
The Program Director of the Africa Climate Collaborative, Prof. Gorettie Nabanoga, indicated that the Skilling Program was designed in response to the challenges faced by thousands of young people who are not in employment, formal education or vocational training (NEET).
“We realised that there are several young people who never got an opportunity to attend university or pursue higher education, yet they constitute the majority of our population. We are intentionally creating pathways that enable them to acquire practical skills, participate meaningfully in the economy and secure dignified employment,” Prof. Nabanoga said.
Applications for the first group under youth skilling program are now open to eligible youth residing in either Lwengo Sub-County in Lwengo district, Ddwaniro Sub-County in Rakai district, Zone 5 of the Bidibidi Refugee Settlement, or Ariwa Sub-County in Yumbe District.
Prof. Gorettie Nabanoga explained that the Africa Climate Collaborative deliberately selected these locations because they are among the most vulnerable to the impacts of climate change.
The programme prioritises districts within Uganda’s agropastoral landscape. She further indicated that the Program is aimed at nurturing young people who will serve as catalysts for enterprise development within their communities.
“The training will equip participants with practical skills that enable them to innovate around climate-related challenges while protecting the environment. Ultimately, they will generate income, improve their livelihoods and become catalysts for local economic transformation.” she said.
Why Poultry?
The Africa Climate Collaborative selected the poultry value chain as the entry point for the pilot because it offers diverse opportunities for entrepreneurship, innovation and employment.
According to Prof. Nabanoga, trainees will specialise in different components of the value chain, including feed production, hatchery management, poultry production, poultry product value addition and poultry waste management.
“The poultry sector offers numerous opportunities for innovation. By developing expertise across different components of the value chain, these young people will collectively strengthen the entire poultry ecosystem.”
Environmental sustainability remains central to the program. Participants will be introduced to climate-smart production practices, resource efficiency and innovative approaches to poultry waste management that minimise environmental impacts while improving productivity.
Program participants are expected to become community resource persons who will transfer the acquired knowledge and skills to other young people.
“These young people will become trainers of trainers. When they return to their communities, they will establish enterprises and mentor others, creating a critical mass of youth engaged in climate-smart businesses.”She noted.
District Leaders and Experts Welcome the Initiative
District leaders have welcomed the program, describing it as a timely intervention for addressing youth unemployment.
Francis Bwowe, Senior Agricultural Officer for Rakai District, described the intervention as timely and transformative.
He noted that the closure of Primary Teachers’ Colleges and the increasing costs of post-secondary education have left many youths without viable alternatives.
“Many young people who complete Senior Four have nowhere to go. Therefore, a program that equips them with practical skills to start their own businesses is extremely important. We believe it will help them become self-reliant and earn a living,” he explained.
Community leaders also expressed optimism about the program’s potential to transform livelihoods.
Mr. George Kizito, LCII Chairperson of Kalere Parish in Rakai District, said unemployment remains one of the greatest challenges facing young people.
“The opportunities exist, but many young people lack the capacity and confidence to create jobs for themselves. In our community, people involved in poultry farming are earning good money, but many youths simply watch because they do not know where to start from,” he said.
The program has also received positive reactions from technical experts. Responding through one of the Africa Climate Collaborative’s social media platforms, Ms. Nehwera Eufemia, a specialist in animal feeds, commended the decision to prioritise feed production.
“Feed accounts for nearly 70 percent of poultry production costs and is the single most important factor influencing profitability. Strengthening skills in feed production provides a strong foundation for improving productivity and sustainability across the entire poultry value chain” she observed.
Ms. Eufemia encouraged eligible young Ugandans to apply and take advantage of the opportunity.
Who Can Apply?
Applications are open to young people residing in:
- Lwengo Sub-county, Lwengo District;
- Ddwaniro Sub-county, Rakai District;
- Zone 5, Bidibidi Refugee Settlement; and
- Ariwa Sub-county, Yumbe District.
Eligible applicants must have completed at least Senior Four (O-Level) or its equivalent but should not have enrolled for or completed university education. Applicants must also be between 18 and 35 years of age by the application deadline and should not be engaged in any form of formal employment or training.
Young women, young mothers, refugees and persons with disabilities are strongly encouraged to apply.
How to Apply
Application forms are available at NO COST through the online application portal at https://climatecollaborative.mak.ac.ug/application.
Applicants from Lwengo and Rakai districts may also obtain application forms through the District Production Offices and Sub-county Community Development Offices, while applicants from Yumbe can access forms through the Yangani Protection Desk at Ariwa Reception Centre and the Office of the RWC3 in Zone 5 of the Bidibidi Refugee Settlement.
Applications should be submitted through the online portal, by email to climateresilience@mak.ac.ug or physically delivered to the designated district offices at NO COST.
Applications close on Thursday, 9 July 2026, at 5:00 p.m. Only shortlisted applicants will be contacted for further selection engagements. For further information, interested applicants may contact the program team on +256 744 773237.
Agriculture & Environment
TORCH Project Living Lab Drives Clean Energy Innovation & Climate Action in Luwero
By Ariho Modern, Tonny Kanyesigye and Tom Micah Matila
****TORCH (Towards a Clean Energy and Zero-Emission Society in East Africa) is a collaborative initiative designed to help communities respond to climate change through practical innovations, research, and inclusive partnerships. Implemented across Uganda, South Sudan, and Austria.
The TORCH Project’s Living Lab engagement in Kawumu Village, Luwero District demonstrated how collaboration among researchers, farmers, students, and development partners can accelerate the adoption of clean energy technologies while strengthening efforts to address climate change.
Held on 4th May 2026, the engagement brought together stakeholders from academia, local communities, civil society, and international institutions to explore practical, affordable, and locally driven solutions for reducing greenhouse gas emissions and promoting the use of clean energy.
The event underscored a growing shift toward community-centered innovation, where local knowledge and scientific research are combined to develop technologies that respond directly to the needs and realities of rural households.
“Knowledge shared here is not for the shelf; it is for our households, our farms, and our future,” said community host, Mr. Kayanja as he welcomed participants.
At the centre of the discussions was the TORCH Project’s Living Lab approach-a participatory model that places communities at the forefront of innovation and decision-making.
Community-Driven Research and Innovation
Addressing participants, the TORCH Project Principal Investigator, also Senior Lecturer in the Department of Soil Science and Land Use Management at Makerere University, Dr. Patrick Musinguzi, emphasized that sustainable solutions can only be achieved when communities are active partners in the research process.
“Under this initiative, every voice matters,” Dr. Musinguzi said. “Farmers, students, and researchers are equal contributors. The solutions we develop must reflect the realities of the communities we serve.”
He noted that the project, supported by the Austrian Government, has established a strong regional network involving Makerere University, Kyambogo University, Busitema University, Kabale University, and the University of Juba, creating opportunities for knowledge exchange and collaborative innovation across East Africa.
Clean Energy Technologies developed
The event showcased a range of technologies designed to address household energy challenges while contributing to climate mitigation efforts. These included energy-efficient cookstoves, food-warming baskets, biogas systems, and solar-powered solutions, all of which have the potential to reduce reliance on traditional biomass fuels and lower carbon emissions.
Researchers also presented innovative methods for measuring environmental impacts. Demonstrations of greenhouse gas monitoring chambers and studies on methane production from livestock waste attracted significant interest from farmers eager to understand how agricultural practices can contribute to climate solutions.
“‘I never imagined cow dung could be this powerful,’ one farmer said after learning about its potential to be converted into renewable energy.”
Barriers to Adoption
The Living Lab also served as a platform for critical reflection on the barriers that continue to hinder the adoption of sustainable technologies. Participants identified affordability, cultural perceptions, and concerns about hygiene and maintenance as some of the key challenges facing wider uptake.
Expert Perspectives
Prof. Twaha Ali Basamba from the Department of Soil Science and Land Use Management at Makerere University cautioned that technological innovation alone is not enough to guarantee success.
“Technology must fit the people, not the other way around,” he said, emphasizing that solutions should be designed to be accessible, affordable, and culturally appropriate.
Representatives from partner institutions reaffirmed the importance of locally grounded innovation. Prof. Phelix Busigye Mbabazi of Kabale University underscored the value of cross-learning among Living Lab sites, while Dr. Margaret Namugwanya of Kyambogo University called for increased use of locally available materials in developing sustainable technologies.
“We must innovate with what we have,” she said, noting that imported technologies are not always suited to the long-term needs of local communities.
Mr. Andreas Bauer from BOKU University shared insights from the ongoing water quality research along River Mayanja, highlighting the importance of collaborative science in addressing environmental challenges. Meanwhile, Mr. Ochero Dickenz of Youth Go Green Uganda inspired participants with stories of climate action initiatives that have mobilized more than two million young people across the country.
Recommendations
By the end of the engagement, participants had developed a series of recommendations aimed at accelerating the adoption of clean energy technologies. These included strengthening community-based production of food-warming baskets, expanding access to affordable energy-saving stoves, improving hygiene practices, and enhancing monitoring and evaluation systems to measure long-term impact.
Living Lab Model, a Blueprint for Sustainable Development in Uganda
For many participants, the significance of the Living Lab extended beyond research and technology demonstrations. It represented a new model of development-one that empowers communities to co-create solutions to some of the most pressing environmental and energy challenges of the time.
“This is not just research; it is our future,” said one student participant.
As Uganda intensifies efforts to address climate change and expand access to sustainable energy, initiatives such as the TORCH Project are demonstrating the power of partnerships in turning research into practical action. Through its Living Labs, the project is creating spaces where innovation is tested, refined, and owned by the communities it is intended to serve.
With momentum continuing to build, stakeholders believe the TORCH Project’s Living Lab model could become a blueprint for sustainable development initiatives across Uganda and beyond-ensuring that communities are not merely beneficiaries of innovation, but active architects of a cleaner and more resilient future.
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