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Integration of Plant Pomace into Extruded Products: Analysis of Process Conditions, Post-Production Waste Properties and Biogas Potential

Author

Listed:
  • Jakub Soja

    (Department of Thermal Technology and Food Process Engineering, University of Life Sciences in Lublin, Głęboka 31, 20-612 Lublin, Poland)

  • Tomasz Oniszczuk

    (Department of Thermal Technology and Food Process Engineering, University of Life Sciences in Lublin, Głęboka 31, 20-612 Lublin, Poland)

  • Iryna Vaskina

    (Department of Biosystems Engineering, Poznań University of Life Sciences, Wojska Polskiego 50, 60-627 Poznan, Poland)

  • Maciej Combrzyński

    (Department of Thermal Technology and Food Process Engineering, University of Life Sciences in Lublin, Głęboka 31, 20-612 Lublin, Poland)

  • Agnieszka Wójtowicz

    (Department of Thermal Technology and Food Process Engineering, University of Life Sciences in Lublin, Głęboka 31, 20-612 Lublin, Poland)

Abstract

Waste streams from cereal-based food production processes, rich in organic matter and carbohydrates, have untapped potential for biogas production. This study uniquely investigated the extrusion-cooking process conditions, physical properties and biogas efficiency of snack pellets enriched with plant pomace (apple, chokeberry, pumpkin, flaxseed and nigella seeds) at different levels (10, 20 and 30%), produced using a single-screw extruder-cooker. The highest efficiency obtained in the extrusion-cooking process (18.20 kg/h) was observed for pellets with the addition of 30% flaxseed pomace. The SME value during the entire process was in the range of 0.015–0.072 kWh/kg. New insights into the interaction between the inclusion of pomace, the physical properties of the extrudate and the anaerobic fermentation efficiency were obtained. The results show that 30% chokeberry extrudate maximized methane production (51.39% gas), demonstrating a double innovation: improving snack pellet quality and converting food waste into renewable energy.

Suggested Citation

  • Jakub Soja & Tomasz Oniszczuk & Iryna Vaskina & Maciej Combrzyński & Agnieszka Wójtowicz, 2024. "Integration of Plant Pomace into Extruded Products: Analysis of Process Conditions, Post-Production Waste Properties and Biogas Potential," Energies, MDPI, vol. 17(24), pages 1-22, December.
    • Handle: RePEc:gam:jeners:v:17:y:2024:i:24:p:6476-:d:1550350
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    References listed on IDEAS

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    1. Shuijing Wang & Chenming Xu & Liyan Song & Jin Zhang, 2022. "Anaerobic Digestion of Food Waste and Its Microbial Consortia: A Historical Review and Future Perspectives," IJERPH, MDPI, vol. 19(15), pages 1-21, August.
    2. Latika Bhatia & Harit Jha & Tanushree Sarkar & Prakash Kumar Sarangi, 2023. "Food Waste Utilization for Reducing Carbon Footprints towards Sustainable and Cleaner Environment: A Review," IJERPH, MDPI, vol. 20(3), pages 1-20, January.
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