IJEP 44(14): 1293-1300 : Vol. 44 Issue. 14 (Conference 2024)
Abiola Ezekiel Taiwo* and Paul Musonge
Mangosuthu University of Technology, Faculty of Engineering, 4026 Durban, South Africa
Abstract
Fruit waste constitutes a large portion of accumulation in landfills, producing gases that contribute to global warming. With South Africa’s increasing consumption of fruits, the availability of waste from fruits and its disposal strategies is a severe concern. As a result of a global shift towards the conservation of the environment and sustainability of growth, there is an increase in studies focusing on developing methods to produce or process waste for the production of biofuel, livestock feed, adsorbents and the extraction of value-added products. Given this waste’s valuable features and composition, converting it into useful products or materials may be the most environmentally friendly way of managing it. This study transforms waste into valuable products using selected fruit waste (apple, banana and citrus) as a case study. Fruit waste contains rich compositions of carbohydrates, glucose, organic matter and other vital minerals, making it a potential precursor for the biosynthesis of many value-added products. Despite this waste potential, there is a need to integrate this waste into a biorefinery sustainably. A circular economy is built by converting fruit waste into products that help achieve sustainable development goals 2 and 12. This study highlights the composition of selected fruit waste as a substrate for the production and development of biorefinery targeted at value-added products with a focus on the South African bioeconomy.
Keywords
Sustainability, Biorefinery, Fruit waste, Technologies, Waste valourization, Value-added product
References
- TCA. 2015. Waste to wealth: The hidden potential of waste from fruit. The Conversation.
- Pienaar, L. and V. Barends-Jones. 2021. The economic contribution of South Africa’s pomegranate industry. Agriprobe. 18: 57-64.
- Manhongo, T., et al. 2022. Current status and opportunities for fruit processing waste biorefineries. Renewable Sustainable Energy Reviews. 155: 111823.
- Schreinemachers, P., et al. 2022. The dynamics of Africa’s fruit and vegetable processing sectors (chapter 3). In Agrifood processing strategies for successful food systems transformation in Africa. Ed C. Jenane, J.M. Ulimwengu and G. Tadesse. ReSAKSS annual trends outlook report. pp 24-32.
- Nair, R.D., S. Chisoro and S. Ponte. 2023. Sus-tainability in the South African wine industry: Status, opportunities and challenges. CCRED working paper. Centre for Business and Development Studies, Frederiksberg..
- Jansen van Vuuren, A. 2020. Identifying seasonal export opportunities for selected South African fruit and nut crops. Masters Thesis. North-West University, South Africa.
- Roes-Hill, M.L. 2015. 8 ways to make the most of fruit waste. World Economic Forum. Accessed on 05-04-2024.
- Khan, N., et al. 2015. Fruit waste streams in South Africa and their potential role in developing a bio-economy. South African J. Sci., 111(5-6): 1-11.
- Chitaka, T.Y. and C. Schenck. 2022. Transitioning towards a circular bioeconomy in South Africa: Who are the key players? South African J. Sci., 118: 1-8.
- Eloka-Eboka, A.C., S. Maroa and A.E. Taiwo. 2023. Biobutanol from agricultural and municipal solid wastes, techno-economic and lifecycle analysis. In Advances and developments in biobutanol production. Ed J.G. Segovia-Hernandez, S. Behera and E. Sanchez-Ramirez. Woodhead Publishing.
- Olalere, O.A., et al. 2022. Emerging trends in bioreactor systems for an improved wastes valorization. Techno-eco. Life Cycle Assess. Bioreac-tors. 23-35.
- Taiwo, A.E., T.N. Madzimbamuto and T.V. Ojumu. 2024. Recovery of acetoin from Bacillus subtilis fermentation broth by supercritical CO2extraction. Biomass Conversion Biorefinery. 1-9.
- Sarangi, P.K., et al. 2023. Food and fruit waste valourization for pectin recovery: Recent process technologies and future prospects. Int. J. Biol. Macromolecules. 235: 123929.
- Magama, P., I. Chiyanzu and J. Mulopo. 2022. A systematic review of sustainable fruit and vegetable waste recycling alternatives and possibilities for anaerobic biorefinery. Bioresour. Tech. Reports. 18: 101031.
- Dinc, G. and E. Yel. 2020. Alternative approach for safe disposal of dry olive pomace: Pyrolysis with/without physical preprocessing. Int. J. Env. Sci. Tech., 17: 2215-2232.
- Brown, A., et al. 2017. Bananas and plantains (Musa spp.). In Genetic improvement of tropical crops. Ed H. Campos and P.D.S. Caligari. pp 219-240.
- Karamura, E., et al. 1998. Banana production systems in eastern and southern Africa. In Bananas and food security. Ed C. Picq, E. Foure and E.A. Frison. The International Network for the Improvement of Banana and Plantain (INIBAP), Montpellier, France. pp 401-412.
- Bairu, M.W., C.W. Fennell and J. van Staden. 2006. The effect of plant growth regulators on somaclonal variation in Cavendish banana (Musa AAA cv. ‘Zelig’). Sci. Horticulturae. 108: 347-351.
- Acevedo, S.A., et al. 2021. Recovery of banana waste-loss from production and processing: A contribution to a circular economy. Molecules. 26: 5282.
- NAMC. 2023. South Arican fruit trade flow. National Agricultural Marketing Council.
- Suri, S., A. Singh and P.K. Nema. 2022. Current applications of citrus fruit processing waste: A scientific outlook. Appl. Food Res., 2: 100050.
- Mahato, N., et al. 2019. Modern extraction and purification techniques for obtaining high purity food-grade bioactive compounds and value-added co-products from citrus wastes. Foods. 8: 523.
- Wedamulla, N.E., et al. 2022. Citrus peel as a renewable bioresource: Transforming waste to food additives. J. Functional Foods. 95: 105163.
- Rafiq, S., et al. 2018. Citrus peel as a source of functional ingredient: A review. J. Saudi Society Agric. Sci., 17: 351-358.
- Antoniae, B., et al. 2020. Grape pomace valourization: A systematic review and meta-analysis. Foods. 9: 1627.
- Bartezzaghi, G., et al. 2022. Food waste causes in fruit and vegetables supply chains. Transportation Res. Procedia, 67: 118-130.
- Mollier, L., et al. 2017. SDG 2: End hunger, achieve food security and improved nutrition and promote sustainable agriculture. A guide to SDG interactions: From science to implementation. International Council for Science. Paris, France.
- Fanzo, J. 2019. Healthy and sustainable diets and food systems: The key to achieving sustainable development goal 2? Food Ethics. 4: 159-174.
- Statistics SA. 2023. Sustainable development goals: Country report 2023, South Africa. Statistics South Africa.
- Gasper, D., A. Shah and S. Tankha. 2019. The framing of sustainable consumption and production in SDG 12. Global Policy. 10: 83-95.
- Enaifoghe, A.O., A.O. Aina and A.A. Durokifa. 2021. South Africa’s economic progress: Challenges and opportunities for sustainable development. Int. J. Develop. Sustain., 10: 340-357.
- Sekoai, P.T., et al. 2023. Biowaste biorefineries in South Africa: Current status, opportunities and research and development needs. Renewable Sustain. Energy Reviews. 188: 113870.
- Njokweni, S.G., et al. 2021a. Potential valourization of organic waste streams to valuable organic acids through microbial conversion: A South African case study. Catalysts. 11: 964.
- Sithole, B. 2022. Biorefinery facility commissions new equipment to add more value to agriculture and forestry. Sci. Scope. 19: 57.
- Kauser, S., et al. 2023. Apple pomace, a biore-source of functional and nutritional components with potential of utilization in different food formulations: A review. Food Chem. Adv., 100598.
- Skinner, R.C., et al. 2018. A comprehensive analysis of the composition, health benefits and safety of apple pomace. Nutrition Reviews. 76: 893-909.
- Anhwange, B., T. Ugye and T. Nyiaatagher. 2009. Chemical composition of Musa sapientum (banana) peels. Electronic J. Env., Agric. Food Chem., 8: 437-442.
- Ighodaro, O.M. 2012. Evaluation study on Nigerian species of Musa paradisiaca peels: Phyto-chemical screening, proximate analysis, mineral composition and antimicrobial activities. Res., 4: 17-20.
- Romelle, F.D., A. Rani and R.S. Manohar. 2016. Chemical composition of some selected fruit peels. European J. Food Sci. Tech., 4: 12-21.
- Ijege, K., I. Umar and R. Suleiman. 2023. Assessment of the mineral contents phytochemicals and proximate analysis of seeds and peels of citrus limon (lemon). Nigerian J. Chem. Res., 28: 40-50.
- Ramohaladi, D., S. Iyuke and M. Daramola. 2023. Adsorptive recovery of polyphenols from apple pomace. Mater. Today Proceedings. 105(5/6): 162-169.
- Sekoai, P.T., A.O. Ayeni and M.O. Daramola. 2018. Parametric optimization of citric acid production from apple pomace and corn steep liquor by a wild type strain of Aspergillus niger: A response surface methodology approach. Int. J. Eng. Res. Africa. 36: 98-113.
- Steyn, A., M. Viljoen-Bloom and W.H. van Zyl. 2021. Valourization of apple and grape wastes with malic acid-degrading yeasts. Folia Microbiol., 66: 341-354.
- Afolabi, F.O., P. Musonge and B.F. Bakare. 2021. Evaluation of lead (II) removal from wastewater using banana peels: Optimization study. Polish J. Env. Studies. 30(2): 1487-1496.
- Londiwe, Z.N., et al. The preparation and characterization of banana peels, eggshells and seashells for the treatment of wastewater. 39th International Conference on Chemical, biological and environmental engineering (JCBEE-23). Johannesburg, South Africa.
- Ramutshatsha-Makhwedzha, D., R. Mbaya and M.L. Mavhungu. 2022. Application of activated carbon banana peel coated with Al2O3-chitosan for the adsorptive removal of lead and cadmium from wastewater. Mater., 15: 860.
- Tayengwa, T., et al. 2021. Comparative effects of feeding citrus pulp and grape pomace on nutrient digestibility and utilization in steers. Animal. 15: 100020.
- Korkiel, L., B. Janse and M. Viljoen-Bloom. 2002. Utilising grape pomace for ethanol production. S. African J. Enol. Viticulture. 23: 31.
- Njokweni, S.G., et al. 2021b. Extraruminal fermentation of citrus, grape and apple pomaces: Assessing the potential to serve as feedstock for production of volatile fatty acids. Waste Biomass Valourization. 12: 3671-3681.
- Kell, C.J.K. 2019. Anaerobic co-digestion of fruit juice industry wastes with lignocellulosic biomass. Masters Thesis. Stellenbosch University, Stellen-bosch, South Africa.
- Lucarini, M., et al. 2021. Fruit wastes as a valuable source of value-added compounds: A collaborative perspective. Molecules. 26: 6338.
- Oladzad, S., et al. 2021. Date fruit processing waste and approaches to its valorization: A review. Bioresour. Tech., 340: 125625.
