SUNFLOWER HUSK: FROM WASTE MATERIAL TO A USEFUL RESOURCE

3rd International Symposium On Biotechnology (2025),  [pp. 297-306]

AUTHOR(S) / AUTOR(I): Gordana Kulić, Jelena Golijan Pantović, Sveto Rakić, Boris Pisinov

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DOI: 10.46793/SBT30.36GK

ABSTRACT / SAŽETAK:

Sunflower (Helianthus annuus L.) is one of the most important oilseed crops, widely used in industry, agriculture, and as a food source, while its by-products, such as husks, can be utilized in various ways. Sunflower husks, constituting up to 40% of the seed’s mass, are rich in fiber, polysaccharides, and other valuable components, with applications in livestock production, the energy industry, and agriculture. This paper explores different possibilities for utilizing sunflower husks, with a particular focus on ecological and energy applications, as well as opportunities for further use in industry and agriculture. Due to their composition, sunflower husks are used as fuel (in pellets or as biomass for combustion) and in the production of bio-briquettes. Moreover, ash obtained from the combustion of sunflower husks contains valuable nutrients such as phosphorus, potassium, calcium, magnesium, and trace elements (zinc, copper, manganese, iron), which makes it beneficial for soil fertilization. The efficiency of ash usage has been improved through granulation, enabling better application in agriculture. As sunflower production residues serve as a renewable energy source, sunflower husks represent a significant resource in the context of sustainable development and energy efficiency.

KEYWORDS / KLJUČNE REČI:

sunflower, husks, biomass, eco-friendly fuel, renewable energy sources

ACKNOWLEDGEMENT / PROJEKAT:

This manuscript is a result of studies performed within the Agreement on the Implementation and Financing of Scientific Research signed in 2024 between the Ministry of Science, Technological Development and Innovation of the Republic of Serbia and the Faculty of Agriculture, University of Belgrade, Agreement registration number: 451-03-65/2024-03/200116 and 451-03-66/2024- 03/200032.

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