Sustainable Processing Technologies: Impact on Food Bioactivity, Safety and Quality

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

Deadline for manuscript submissions: 20 September 2024 | Viewed by 560

Special Issue Editors


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Guest Editor
Independent Researcher, Bioingredient Industry, Montreal, QC, Canada
Interests: sustainability; green food processing technologies; functional food and bio-ingredients
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
Instituto de Ciencia y Tecnología de Alimentos, Universidad Nacional de Colombia Sede Bogotá, Carrera 30 # 45-03, Edificio 500A, Bogotá 111321, D.C., Colombia
Interests: valorization of food industry by-products by using emerging technologies; emerging technologies; bioactive compounds
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Sustainable processing technologies are emerging as a promising way to enhance the bioactivity, safety and quality of food products, while reducing the environmental impact of the food industry.

Green technologies (such as ozone, pulsed electric fields, ohmic heating, photosensitization, ultraviolet radiations, high‐pressure processing, cold atmospheric plasma, microwave- and ultrasonic-assisted processing, and nanotechnology) offer advantages over conventional methods in terms of speed, efficiency, effectiveness and environmental impact. These technologies can also offer benefits such as energy efficiency, water conservation, waste reduction, extended shelf life, improved nutritional value and enhanced functional properties of food ingredients. Today, food sector also faces the challenge of meeting the growing food demand and ensuring adequate nutrition for everyone without depleting Earth’s resources or exceeding planetary boundaries. Therefore, green technologies need to be integrated with other strategies to achieve food security and sustainability while preserving or enhancing the bioactivity, safety and quality of food products.

Integration strategies for green technologies and conventional technics for food product processing are methods and practices that aim to combine the benefits of both approaches to achieve environmental, economic and social sustainability in the food industry. Some examples of integration strategies are as follows:

  • Hybrid separation processes: using a combination of green technologies such as supercritical-CO2 fluid extraction and conventional technologies such as distillation or evaporation to improve the efficiency and quality of food product separation.
  • Enzyme-enhanced conventional processing: using enzymes to assist or replace conventional processing steps such as heating, mixing or homogenization to reduce energy consumption and improve food product functionality.
  • Combined microbial control technologies: using a combination of emerging technologies such as high pressure or pulsed electric fields and conventional technologies such as thermal or chemical treatments to achieve optimal microbial inactivation and food product safety.
  • Green packaging technologies: using biodegradable, recyclable or edible materials to replace or reduce the use of conventional plastic or metal packaging materials to minimize waste generation and environmental impact.

This Special Issue aims to showcase the latest research and innovations in the field of green technologies applied to the food industry, covering topics such as those provided below:

  • Emerging technologies for microbial control;
  • Hybrid separation processes;
  • Circular economy;
  • Novel processing methods;
  • Revalorization;
  • Sustainable bioingredients;
  • Food safety;
  • Quality attributes and consumer acceptance.

Dr. Nassim Naderi
Dr. Luis Felipe Gutierrez Alvarez
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 100 words) can be sent to the Editorial Office for announcement on this website.

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

  • natural food extracts
  • food bioactivity
  • sustainable production
  • quality attributes
  • sustainability
  • food waste
  • bioactive compounds
  • functional foods
  • bioactive health ingredients
  • circular economy

Published Papers (1 paper)

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Research

17 pages, 1035 KiB  
Article
Cryogenic Pretreatment Enhances Drying Rates in Whole Berries
by Esperanza Dalmau, Monica Araya-Farias and Cristina Ratti
Foods 2024, 13(10), 1524; https://doi.org/10.3390/foods13101524 - 14 May 2024
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Abstract
The impact of cryogenic pretreatments on drying performance was studied in blueberries, seabuckthorn fruits and green grapes. The fruits were immersed in liquid nitrogen in 2 min freezing/thawing cycles (one to five). Untreated samples were used as the control. Drying experiments were carried [...] Read more.
The impact of cryogenic pretreatments on drying performance was studied in blueberries, seabuckthorn fruits and green grapes. The fruits were immersed in liquid nitrogen in 2 min freezing/thawing cycles (one to five). Untreated samples were used as the control. Drying experiments were carried out on treated and non-treated berries at 50 °C and 1 m/s (hot-air-drying), 50 °C and 25″ Hg vacuum (vacuum-drying), 30 mTorr total pressure and 25 °C shelf temperature (freeze-drying). The weight loss evolution of the foodstuffs was measured as a function of time. Microscopic (SEM and optical) determinations of the epicarp were performed. A visual inspection was performed and color changes and volume reductions were assessed before and after dehydration. The thickness of the berries’ epicarp decreased between 20 and 50% (depending on the fruit) after 3–5 immersions in liquid N2. The drying kinetics was accelerated significantly for the three tested drying processes (i.e., drying time decreased from 48 to 16 h for blueberry freeze-drying). The best quality of dried berries was observed for pretreated blueberries after freeze-drying, keeping their volume, shape and color after the process. This work shows that “tailor-made” dried berry products with desired properties can be achieved and drying performance can be improved by the application of ultra-low temperature pretreatments. Full article
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