Natural Pectin Sources, Extraction Methods, Chemical Composition, and Emerging Applications in Food Systems: A Systematic Review

Background: Pectin is a naturally occurring polysaccharide extensively employed in the food industry for its versatile rheological and textural properties. Despite its considerable industrial significance, the escalating global demand for pectin necessitates a broader exploration of alternative sources and more sustainable extraction methodologies to supplement the supply currently dominated by conventional citrus-based production.

Aims: This systematic review aimed to critically review and synthesize the available scientific literature on the sources, extraction methods, chemical compositions, and food industry applications of natural pectin at the global scale, with particular emphasis on advancements and emerging trends documented between 1980 and 2024.

Materials and Methods: Peer-reviewed literature on natural pectin was systematically retrieved from major academic databases, including Google Scholar, Google, Web of Science, Scopus, and PubMed. The review was conducted in strict adherence to the Preferred Reporting Items for Systematic Review and Meta-Analysis (PRISMA) guidelines. Following a rigorous screening and eligibility assessment process, a total of 48 scientific articles were selected for inclusion on the basis of their relevance to the review objectives.

Results: The majority of included articles (n = 28) were published between 2020 and 2024, reflecting a marked surge in research interest driven by the rising global demand for pectin. Geographically, Asia accounted for the largest proportion of studies (n = 31), followed by Africa (n = 6), South America (n = 4), North America (n = 3), Europe (n = 3), and Oceania (n = 1). Conventional extraction methods, most notably acid extraction and hot water extraction, were represented in 28 articles and remained more prevalent than emerging green technologies— including microwave-assisted and ultrasound-assisted extraction—which featured in 20 articles. Citrus fruits consistently constituted the predominant pectin source across the reviewed literature, with acid extraction representing the most widely employed isolation method.

Conclusion: This review demonstrates that whilst global demand for natural pectin is increasing substantially, research and industrial practice remain disproportionately focused on citrus fruit sources and conventional extraction techniques. There is therefore an imperative need to diversify pectin sources beyond citrus-derived sources, to accelerate the adoption of environmentally sustainable green extraction technologies, and to direct greater research attention towards underexplored geographical regions—particularly Africa—where both pectin production potential and demand are expanding.

Keywords

Natural Pectin Underutilized Sources Extraction method Food Industry Application Green Technology Systematic Literature Review
  • Patience Ngani
    Department of Food Processing and Technology, Marondera University of Agricultural Sciences and Technology, Zimbabwe
  • Faith Angeline Manditsera
    Harare Institute of Technology
  • Marondera University of Agricultural Sciences and Technology

How to Cite

Ngani, P., Manditsera, F. A., & Macheka, L. (2026). Natural Pectin Sources, Extraction Methods, Chemical Composition, and Emerging Applications in Food Systems: A Systematic Review. The North African Journal of Food and Nutrition Research, 9(SI), S50-S62. https://doi.org/10.51745/najfnr.9.SI.S50-S62

Adetunji, Lanrewaju Ridwan; Adekunle, Ademola; Orsat, Valérie; Raghavan, Vijaya. (2017). Advances in the pectin production process using novel extraction techniques: A review. Food Hydrocolloids, 62, 239–250. https://doi.org/10.1016/j.foodhyd.2016.08.015 DOI: https://doi.org/10.1016/j.foodhyd.2016.08.015

Ahmad, M. M., El-Kader, A., Amal, E., & Abozed, S. S. (2021). Optimization of flaxseed cake pectin extraction and shelf-life prediction model for pear fruit preserved by pectin edible coating. Egyptian Journal of Chemistry, 64(12), 7481-7493. https://doi.org/10.21608/ejchem.2021.74519.3678 DOI: https://doi.org/10.21608/ejchem.2021.74519.3678

Azzouzi, H., Elhajji, L., Achchoub, M., Salmaoui, S., Ammadi, A., Harrak, H., ... & Elfazazi, K. (2023). Moroccan Citrus clementina peels: optimization of pectin extraction and determination of chemical and functional properties. Plants, 12(19), 3417. https://doi.org/10.3390/plants12193417 DOI: https://doi.org/10.3390/plants12193417

Babbar, N., Dejonghe, W., Gatti, M., Sforza, S., & Elst, K. (2016). Pectic oligosaccharides from agricultural by-products: Production, characterization and health benefits. Critical Reviews in Biotechnology, 36(4), 594-606. https://doi.org/10.3109/07388551.2014.996732 DOI: https://doi.org/10.3109/07388551.2014.996732

Bagherian, H., Ashtiani, F. Z., Amir, F., & Mahdy, M. (2011). Comparisons between conventional, microwave and ultrasound-assisted methods from extraction of pectin from grapefruit. Chemical Engineering and Processing, 50, 1237-1243. https://doi.org/10.1016/j.cep.2011.08.002 DOI: https://doi.org/10.1016/j.cep.2011.08.002

Bartolazzi, A. (2018). Galectins in Cancer and Translational Medicine: From Bench to Bedside. International Journal of Molecular Sciences, 19(10), 2934. https://doi.org/10.3390/ijms19102934 DOI: https://doi.org/10.3390/ijms19102934

Biratu, G., Woldemariam, H. W., & Gonfa, G. (2024). Development of active edible films from coffee pulp pectin, propolis, and honey with improved mechanical, functional, antioxidant, and antimicrobial properties. Carbohydrate Polymer Technologies and Applications, 8(100557), 100557. https://doi.org/10.1016/j.carpta.2024.100557 DOI: https://doi.org/10.1016/j.carpta.2024.100557

Canteri, M. H. G., Scheer, A. P., & Wosiacki, G. (2010). A comparative study of pectin extracted from passion fruit rind flours. Journal of Polymers and the Environment, 18(4), 593–599. https://doi.org/10.1007/s10924-010-0206-z DOI: https://doi.org/10.1007/s10924-010-0206-z

Chan, S. Y., Choo, W. S., Young, D. J., & Loh, X. J. (2017). Pectin as a rheology modifier: Origin, structure, commercial production and rheology. Carbohydrate Polymers, 161, 118–139. https://doi.org/10.1016/j.carbpol.2016.12.033 DOI: https://doi.org/10.1016/j.carbpol.2016.12.033

Chien, W. J., Saputri, D. S., Yanti, S., & Agrawal, D. C. (2022). Response surface methodology for simple non-acid ultrasonic-assisted extraction of pectin from Taiwan’s Citrus depressa H. peels. Chiang Mai University Journal of Natural Sciences, 21(4), Article e2022062. https://doi.org/10.12982/CMUJNS.2022.062 DOI: https://doi.org/10.12982/CMUJNS.2022.062

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