Plant Essential Oils: Extraction Methods and Applications in Food Packaging

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

Deadline for manuscript submissions: 15 January 2026 | Viewed by 2543

Special Issue Editors


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Guest Editor
College of Food Science, Sichuan Agricultural University, Ya’an 625014, China
Interests: food packaging; food 3D printing; food preservation
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
College of Food Science, Sichuan Agricultural University, Ya’an 625014, China
Interests: research and development of high-efficiency, high-quality and high-value full utilization technology for co-products of fruit and vegetable processing; analysis of the fine structure of fruit and vegetable cell walls and its relationship with the quality of fruits and vegetables; interaction patterns and functions among polysaccharides and between polysaccharides and polyphenols in plant-derived cell walls

Special Issue Information

Dear Colleagues,

The growing consumer demand for natural, minimally processed foods and sustainable packaging solutions has intensified research into plant essential oils (PEOs) as potent, bio-based alternatives to synthetic preservatives.  This Special Issue, "Plant Essential Oils: Extraction Methods and Applications in Food Packaging," delves into the critical intersection of PEO extraction technologies and their functional integration within food packaging systems. PEOs offer remarkable antimicrobial and antioxidant properties, crucial for extending shelf-life and enhancing food safety. However, their inherent volatility, sensitivity, and strong organoleptic impact present significant challenges for direct application. The efficacy and stability of PEOs in packaging are fundamentally influenced by the extraction method employed (e.g., hydrodistillation, steam distillation, solvent extraction, supercritical fluid extraction, microwave/ultrasound-assisted extraction), which dictates their yield, composition, and bioactive profile. Furthermore, innovative encapsulation techniques (e.g., cyclodextrins, liposomes, nanofibers, biopolymer matrices) and material engineering strategies are vital for controlled release and maximizing their preservation potential within active and intelligent packaging formats. This Special Issue seeks cutting-edge research and reviews exploring novel extraction techniques, advanced encapsulation/delivery systems, the development and characterization of PEO-loaded packaging materials, their impact on food preservation efficacy (microbial, oxidative, sensory), migration studies, and assessments of safety and environmental sustainability.

Prof. Dr. Yaowen Liu
Dr. Mingrui Chen
Guest Editors

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Keywords

  • plant essential oils
  • extraction techniques
  • food packaging
  • active packaging
  • encapsulation
  • antimicrobial
  • antioxidant
  • preservation efficacy

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Published Papers (2 papers)

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Research

19 pages, 1871 KB  
Article
Design and Evaluation of a Cinnamomum burmannii Essential Oil-Loaded Preservative Film for Enhancing the Quality and Shelf Life of Squaliobarbus curriculus Filets
by Xiaonan Zhang, Jiayi Lai, Xiaoxiao Dai, Feng Huang, Lei Guan and Rushu Wen
Foods 2025, 14(17), 3139; https://doi.org/10.3390/foods14173139 - 8 Sep 2025
Cited by 1 | Viewed by 819
Abstract
In this study, an edible matrix consisting of sodium alginate, gelatin, zein, and gum arabic was combined with Cinnamomum burmannii essential oil (CBEO) to produce a natural, eco-friendly, and bioactive food packaging preservation film. After the CBEO was extracted by hydrodistillation and analyzed [...] Read more.
In this study, an edible matrix consisting of sodium alginate, gelatin, zein, and gum arabic was combined with Cinnamomum burmannii essential oil (CBEO) to produce a natural, eco-friendly, and bioactive food packaging preservation film. After the CBEO was extracted by hydrodistillation and analyzed using gas chromatography mass spectrometry, 55 chemicals were found, with the main ingredients being α-terpineol, borneol, and cinnamon aldehyde. Scanning electron microscopy and Fourier transform infrared spectroscopy were used to extensively evaluate the preservative coating, which demonstrated bacteriostatic activity. When compared to the control at a 3% CBEO loading, the film effectively maintained color stability while extending the shelf life of Squaliobarbus curriculus filets by around 3 times. Furthermore, compared to the blank film, the film showed a 23.8% increase in tensile strength and a 23.59% improvement in light transmittance. These results show how CBEO-loaded edible films can enhance meat preservation and offer fresh perspectives on the creation of useful, biodegradable food packaging materials. Full article
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20 pages, 3372 KB  
Article
β-Cyclodextrin/Thymol Microcapsule-Embedded Starch Coatings for Synchronized Antimicrobial Release and Shelf-Life Extension in Blueberries
by Xiangyue Li, Yuxin Liu, Jiayi Zheng, Xiaoyi Zhu, Weirui Fang, Shanshan Lei, Weiran Zhuang, Jing Wu, Tong Hao, Sulin You, Xi Wei, Wen Qin, Yaowen Liu and Mingrui Chen
Foods 2025, 14(17), 3132; https://doi.org/10.3390/foods14173132 - 7 Sep 2025
Cited by 1 | Viewed by 1303
Abstract
An eco-friendly composite coating was developed for blueberry preservation through the incorporation of thymol-loaded β-cyclodextrin microcapsules (THY@β-CD) into a potato starch (PO) matrix. Microencapsulation at an optimal wall-to-core ratio of 13:1 achieved a THY encapsulation efficiency of 73.24%. Structural analyses confirmed the successful [...] Read more.
An eco-friendly composite coating was developed for blueberry preservation through the incorporation of thymol-loaded β-cyclodextrin microcapsules (THY@β-CD) into a potato starch (PO) matrix. Microencapsulation at an optimal wall-to-core ratio of 13:1 achieved a THY encapsulation efficiency of 73.24%. Structural analyses confirmed the successful formation of an inclusion complex, which enhanced thermal stability and provided a controlled release profile governed by Fickian diffusion mechanisms. When applied to blueberries, the coating significantly reduced weight loss by 22%, delayed softening, and more effectively preserved anthocyanin content compared to uncoated fruit during 10-day storage. Furthermore, it well-maintained the sensory quality and visual appeal of the fruit. These results demonstrate that the THY@β-CD/PO coating synergistically integrates sustained antimicrobial delivery with matrix compatibility, offering a promising natural alternative to synthetic preservatives for extending the shelf life of blueberries. Full article
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