Sustainable Processing Design for Functional Ingredients in Food

A special issue of Processes (ISSN 2227-9717). This special issue belongs to the section "Food Process Engineering".

Deadline for manuscript submissions: 10 September 2026 | Viewed by 655

Special Issue Editors


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Guest Editor
Tecnológico Nacional de México/Instituto Tecnológico de Tuxtepec, Calzada Dr. Víctor Bravo Ahuja, No. 561, Col. Predio el Paraíso, Tuxtepec CP 68350, Oaxaca, Mexico
Interests: functional foods; microencapsulation of active compounds; extraction of active compounds; technofunctional properties; antioxidant activity

E-Mail Website
Guest Editor
Tecnológico Nacional de México/Instituto Tecnológico de Tuxtepec, Calzada Dr. Víctor Bravo Ahuja, No. 561, Col. Predio el Paraíso, Tuxtepec CP 68350, Oaxaca, Mexico
Interests: food science and technology; food extrusion; physical chemistry of food
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
Tecnológico Nacional de México/Instituto Tecnológico de Tuxtepec, Calzada Dr. Víctor Bravo Ahuja, No. 561, Col. Predio el Paraíso, Tuxtepec CP 68350, Oaxaca, Mexico
Interests: bioactive compounds; functional foods; bioactive peptides; vegetable protein; antihypertensive activity

Special Issue Information

Dear Colleagues,

In recent decades, the role of food has transcended its purely nutritional function, consolidating itself as a strategic tool for promoting health and preventing chronic diseases. This evolution has driven a growing interest in functional foods, defined by their ability to offer additional physiological benefits beyond their basic nutritional value. At the same time, the food industry faces the unavoidable challenge of redesigning its production systems based on principles of sustainability, energy efficiency, and the comprehensive use of raw materials.

This Special Issue of Processes, entitled "Sustainable Processing Design for Functional Ingredients in Food", will be as a platform to for researchers to explore the synergies between technological innovation, environmental sustainability, and food functionality. We aim to bring together original research, critical reviews, and methodological developments that address the design, optimization, and application of sustainable processes—such as emerging technologies, green extraction, biorefineries, and the revaluation of agri-food byproducts—for obtaining bioactive ingredients with validated functional properties. In a social context marked by climate change, resource scarcity, and the growing demand for healthy foods, it is essential to integrate multidisciplinary approaches that ensure the industrial viability of cleaner, circular, and socially responsible solutions. Thus, the papers included in this Special Issue will not only delve into the technical and scientific aspects of processing, but also highlight its contribution to the development of more resilient and sustainable food value chains.

We hope this Special Issue will serve as a reference for researchers, technologists, formulators, and public policymakers committed to transforming the food system toward a healthier and more sustainable model.

Dr. Betsabe Hernandez Santos
Prof. Dr. Jesús Rodríguez-Miranda
Dr. Juan Gabriel Torruco-Uco
Guest Editors

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Keywords

  • sustainability
  • green processing
  • functional ingredients
  • emerging technologies
  • natural bioactives
  • byproduct valorization
  • healthy foods
  • energy efficiency
  • food biorefineries
  • technological innovation

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Published Papers (1 paper)

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Research

21 pages, 1290 KB  
Article
Sustainable Preservation of Opuntia ficus-indica Peel Waste for Resource Recovery Through Pretreatment and Convective-Drying Processes
by Aymen Dhaouadi, Nadia Smirani, Souhir Bouazizi, Oualid Khayati, Sara Magdouli and Moktar Hamdi
Processes 2026, 14(2), 262; https://doi.org/10.3390/pr14020262 - 12 Jan 2026
Viewed by 348
Abstract
Opuntia ficus-indica peel waste (OPW) accounts for approximately 50% of the fresh fruit weight, a relatively higher rate in comparison to other fruits, making it a particularly abundant and underutilized agricultural by-product. This study investigates Tunisian OPW through convective drying (50, 60, 75, [...] Read more.
Opuntia ficus-indica peel waste (OPW) accounts for approximately 50% of the fresh fruit weight, a relatively higher rate in comparison to other fruits, making it a particularly abundant and underutilized agricultural by-product. This study investigates Tunisian OPW through convective drying (50, 60, 75, and 85 °C) using four different pretreatments: no pretreatment (Fresh OPW), dipped peels in acetic acid solution (AA OPW), frozen and thawed peels (FZ OPW), and dipped–frozen combined pretreatment (AA-FZ OPW). The drying kinetic evaluation clearly demonstrated an increase in drying rate by lowering the required drying time for the various pretreatments and drying temperatures. This drying time decreased by 8.64–17.39%, 23.46–36.70%, and 28.39–39.45% for AA OPW, FZ OPW, and AA-FZ OPW, respectively, as compared to fresh OPW. The total phenolic and betalain contents, found in dried OPW, ranged from 7.87 ± 0.254 g GAE/100 g dw to 12.29 ± 0.421 g GAE/100 g dw and from 22.74 ± 2.34 mg/100 g dw to 59.86 ± 3.24 mg/100 g dw, depending on the drying temperature and pretreatment applied. This study employs thin-layer and artificial neural network (ANN) modelling, finding that both methods produce highly accurate moisture-ratio prediction during the drying process. The peels from Opuntia ficus-indica have considerable potential to be reused as functional ingredients. Full article
(This article belongs to the Special Issue Sustainable Processing Design for Functional Ingredients in Food)
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