OPTIMIZATION OF CONVECTIVE DRYING CONDITIONS FOR PECTIN-RICH PLANT BY-PRODUCTS INTENDED FOR FEED APPLICATIONS
DOI:
https://doi.org/10.37547/Keywords:
agricultural by-products; pumpkin residues; sesame biomass; convective drying; pectin retention; dietary fiber; feed ingredients; waste valorization.Abstract
The efficient utilization of plant-derived by-products represents a promising approach to reducing agricultural waste while providing alternative sources of functional ingredients for animal feed production. This study investigated the effects of convective drying temperature on the processing efficiency and retention of valuable components in pumpkin processing residues, sesame flowers, and sesame stems. The materials were dried at 50, 60, and 70°C at a constant air velocity of 1.0 m/s until a final moisture content of 8–10% was achieved. Drying kinetics, dry product yield, pectin retention, and dietary fiber content were evaluated to identify conditions providing an appropriate balance between process duration and preservation of functional constituents.
Downloads
References
1.Lalnunthari, C., Devi, L. M., & Badwaik, L. S. (2020). Extraction of protein and pectin from pumpkin industry by-products and their utilization for developing edible film. Journal of Food Science and Technology, 57(5), 1807–1816. https://doi.org/10.1007/s13197-019-04214-6
2.de Escalada Pla, M. F., Ponce, N. M., Stortz, C. A., Gerschenson, L. N., & Rojas, A. M. (2007). Composition and functional properties of enriched fiber products obtained from pumpkin (Cucurbita moschata Duchesne ex Poiret). LWT – Food Science and Technology, 40(7), 1176–1185.
3.Badr, S. E. A., Shaaban, M., Elkholy, Y. M., Helal, M. H., Hamza, A. S., Masoud, M. S., & El Safty, M. M. (2011). Chemical composition and biological activity of ripe pumpkin fruits (Cucurbita pepo L.) cultivated in Egyptian habitats. Natural Product Research, 25(16), 1524–1539.
4.Lalnunthari, C., & Badwaik, L. S. (2020). Valorization of pumpkin processing by-products as sources of pectin and other functional constituents. Journal of Food Science and Technology, 57, 1807–1816.
5.Yang, G., Li, Y., Teng, M., Zhang, Y., Zhai, Y., & Xiao, H. (2025). Comparison of insoluble dietary fibers from sesame meal by three preparation methods: Structural, physicochemical, and functional characterizations. Journal of Food Science, 90(11), e70661. https://doi.org/10.1111/1750-3841.70661
6.Elleuch, M., Bedigian, D., Maazoun, B., Besbes, S., Blecker, C., & Attia, H. (2012). Dietary fibre characteristics and antioxidant activity of sesame seed coats (testae). International Journal of Food Properties, 15(1), 25–37. https://doi.org/10.1080/10942911003687231
7.Zhu, X., et al. (2020). Analysis and evaluation of chemical composition of stem for different types of sesame. Journal of Henan Agricultural Sciences, 49(12), 54–59. https://doi.org/10.15933/j.cnki.1004-3268.2020.12.008
8.Gebremedhin, G. H., et al. (2020). Potential, quality and quantity assessment of sesame plant residue in dry land vertisols of Tigrai, Ethiopia: Approach for sustainability of dry-land farming. Heliyon, 6, e05287.
9.Dhingra, D., Michael, M., Rajput, H., & Patil, R. T. (2012). Dietary fibre in foods: A review. Journal of Food Science and Technology, 49(3), 255–266.
10.Umidov Sh.E., Genjebaev M.S. The influence of technologial properties on the quality of pumpkin fruits during storage // “Academic zone”( November, 2023). – India, 2023. – Volume 2. – Issue 12. – P. 477-484
11.Genjebayev M.S., Umidov Sh.E. Qovoq mevalarini quritib, undan kukun tayyorlashning texnologik ko‘rsatkichlari // “Agro kimyo himoya va o‘simliklar karantini” jurnalui. – Toshkent, 2025. – № 4 (112). – B. 76-80 (06.00.00; № 12).
12.Genjebayev M.S., Umidov Sh.E. Qovoq mevalarini quritib tayyorlangan kukun mahsulotlarini qadoqlash usullari // “Agro kimyo himoya va o‘simliklar karantini” jurnalui. – Toshkent, 2025. – № 4 (112). – B. 81-83 (06.00.00; № 12).
Downloads
Published
Issue
Section
License

This work is licensed under a Creative Commons Attribution 4.0 International License.
Articles published in this journal are licensed under the Creative Commons Attribution 4.0 International License (CC-BY 4.0). Under this license:
- Share: Copy and redistribute the material in any medium or format
- Adapt: Remix, transform, and build upon the material for any purpose, including commercially
Attribution required: You must give appropriate credit, provide a link to the license, and indicate if changes were made.
License URL: https://creativecommons.org/licenses/by/4.0/
Authors retain copyright of their work while granting the journal first publication rights.