Application of Microencapsulation and Controlled Release in Foods

A special issue of Foods (ISSN 2304-8158). This special issue belongs to the section "Food Engineering and Technology".

Deadline for manuscript submissions: 24 November 2026 | Viewed by 1046

Special Issue Editors


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Guest Editor
Department of Food Engineering, Middle East Technical University, 06800 Ankara, Turkey
Interests: encapsulation of active compounds and minerals; emulsion systems; food packaging and application; spinning technologies; microwave processing
Department of Food Engineering, Middle East Technical University, 06800 Ankara, Turkey
Interests: active/intelligent food packaging; spinning technologies; pickering emulsions

Special Issue Information

Dear Colleagues,

We are pleased to invite you to contribute to the Special Issue “Application of Microencapsulation and Controlled Release in Foods,” which focuses on innovative strategies for protecting sensitive bioactive compounds and ensuring their stability, functionality, and targeted delivery in food systems.

Phenolic compounds, natural colorants (including anthocyanins), essential oils and volatile constituents, vitamins and lipophilic bioactive, probiotics, prebiotics, and minerals are widely known as highly sensitive molecules that degrade when exposed to environmental elements such as light, heat, UV radiation, and pH changes. To overcome these challenges, microencapsulation and controlled release technologies are increasingly used to stabilize labile bioactives, maintain their functionality, and provide targeted delivery in food applications.

This Special Issue seeks original research and review articles addressing the encapsulation of bioactives using diverse approaches, including but not limited to emulsion-based systems, drying methods, and spinning technologies. Manuscripts focusing on degradation kinetics and release modeling, particularly those evaluated in food simulants and validated in real food matrices, are especially encouraged. Submissions may cover fundamental studies on encapsulation mechanisms, novel material design, or practical applications in food formulations. Contributions highlighting interdisciplinary approaches and advanced analytical characterization are also welcome.

Prof. Dr. Servet Gülüm Şumnu
Dr. Eda Yildiz
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 250 words) can be sent to the Editorial Office for assessment.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Foods is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2900 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • emulsion-based encapsulation, including pickering and double emulsions, applied in food systems
  • complex coacervation approaches tailored for food applications
  • drying-based encapsulation techniques, such as spray drying and freeze drying, widely used in food formulations
  • spinning technologies–based encapsulations (electrospinning, centrifugal spinning, melt spinning, etc.) developed for food-grade delivery systems
  • mathematical modeling of active compound release, performed in food simulants and/or validated in real food systems
  • influence of encapsulation on the degradation kinetics of active compounds.

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Published Papers (1 paper)

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Research

19 pages, 559 KB  
Article
Encapsulation of Bee Pollen Phenolics with β-Cyclodextrin: Effects on Antioxidant Activity, Antimicrobial Properties, and Digestive Stability
by Aslı Akdas, Deniz Günal-Köroğlu, Dilara Devecioglu, Esra Capanoglu, Funda Karbancioglu-Guler and Gulay Ozkan
Foods 2026, 15(6), 1047; https://doi.org/10.3390/foods15061047 - 16 Mar 2026
Viewed by 689
Abstract
Bee pollen is a natural product with multifunctional properties, containing abundant bioactive compounds, especially phenolic acids and flavonoids, which are largely responsible for its antioxidant and antimicrobial activities. In this study, the bioactive composition, antioxidant capacity, encapsulation efficiency, antimicrobial activity, and gastrointestinal stability [...] Read more.
Bee pollen is a natural product with multifunctional properties, containing abundant bioactive compounds, especially phenolic acids and flavonoids, which are largely responsible for its antioxidant and antimicrobial activities. In this study, the bioactive composition, antioxidant capacity, encapsulation efficiency, antimicrobial activity, and gastrointestinal stability of bee pollen extract (PE) were investigated. The pollen extract exhibited high total phenolic (2817 mg GAE/100 g) and flavonoid contents (5255 mg QE/100 g), along with strong antioxidant activity (DPPH: 4305 mg TE/100 g; CUPRAC: 3685 mg TE/100 g). To improve the stability and bioaccessibility of phenolic compounds, PE was encapsulated using β-cyclodextrin (BCD) at different weight ratios. Among the formulations, the PE:BCD ratio of 1:2 showed the highest encapsulation efficiency (64%) and favorable physicochemical properties, including higher particle size and more negative zeta potential values, indicating good colloidal stability. Antimicrobial activity was evaluated for PE, BCD-only, and the selected PE-loaded formulation (1:2, w:w). Encapsulation led to a modest reduction in antimicrobial activity compared to free PE (6.25–50 mg/mL); however, the encapsulated formulation still exhibited considerable antibacterial effects against both Gram-positive and Gram-negative strains (25–50 mg/mL). Furthermore, in vitro gastrointestinal digestion indicated that BCD encapsulation substantially enhanced the bioaccessibility of total phenolics (81%) and antioxidant capacity (DPPH: 48%; CUPRAC: 76%), particularly during the intestinal stage. Phenolic profiling showed that chlorogenic acid and quercetin derivatives remained relatively stable throughout digestion. Overall, encapsulation with BCD effectively safeguarded pollen phenolics, improved their gastrointestinal stability, and increased bioaccessibility, highlighting the potential of encapsulated bee pollen as a functional food ingredient or nutraceutical. Full article
(This article belongs to the Special Issue Application of Microencapsulation and Controlled Release in Foods)
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