Waste Reduction and Management in Food Security and Food Sustainability: 2nd Edition

A Special Issue of Foods (ISSN 2304-8158) belonging to the section "Food Security and Sustainability".

Deadline for manuscript submissions: 15 November 2026 | Viewed by 7703

Editors


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Guest Editor
Faculty of Science, Sydney Institute of Agriculture, School of Life and Environmental Sciences, The University of Sydney, Sydney, NSW 2006, Australia
Interests: new food product development; value addition to food and food waste; functional food; food/feed processing; climate change and food; adulteration in food; indigenous food ingredients and their potential applications in food product development
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
Department of Chemistry and Biotechnology, Faculty of Science, Engineering and Technology, Swinburne University of Technology, Hawthorn, VIC 3122, Australia
Interests: cereal grain quality and nutrition; starch biosynthesis and functional properties; food molecular biology, biochemistry and biotechnology; glycemic index and digestibility; bioactive compounds in cereals; abiotic stress tolerance in response to climate change; food waste valorisation into biopolymers; plant prebiotics and gut health; multi-omics approaches in food systems
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

This is the second volume of the Special Issue "Waste Reduction and Management in Food Security and Food Sustainability" of the journal Foods, building upon the successful first edition while expanding into critical emerging areas.

Around 700 million people suffer from food poverty, while approximately one-third of all food produced for human consumption is lost or wasted annually. Food loss and wastage occur throughout the entire value chain—from farms to households—due to poor handling, improper transport or storage, extreme weather conditions, cosmetic standards, inadequate infrastructure, and behavioral factors. As global population approaches 10 billion by 2050, researchers worldwide are urgently seeking innovative solutions to prevent food loss and waste, ensuring adequate nutrition for all while reducing environmental pressure and greenhouse gas emissions.

This second edition covers the scope of the previous edition. In addition, it specifically focuses on:

Digital Innovation and Technology Integration

  • Artificial intelligence and machine learning applications for demand forecasting and waste prediction;
  • Internet of Things (IoT) and blockchain technologies for enhanced traceability and supply chain optimization;
  • Computer vision and automated sorting systems for quality assessment;
  • Smart sensors and real-time monitoring technologies;
  • Digital twins and predictive analytics for food systems.

Climate Resilience and Environmental Impact

  • Climate-smart waste reduction strategies;
  • Carbon footprint analysis of waste prevention interventions;
  • Circular economy approaches to food waste valorization;
  • Renewable energy generation from food waste streams;
  • Adaptation strategies for extreme weather events and climate variability.

Behavioral Science and Social Innovation

  • Consumer behavior modification strategies and interventions;
  • Social network influences on food waste practices;
  • Cultural and socioeconomic factors affecting food waste patterns;
  • Community-based waste reduction initiatives;
  • Educational programs and awareness campaigns.

Economic Models and Policy Frameworks

  • Cost–benefit analyses of waste reduction technologies;
  • Economic incentives and policy instruments;
  • Public–private partnership models for waste management;
  • Regulatory frameworks for sustainable food systems;
  • Financial mechanisms supporting waste reduction initiatives.

Geographic and Sectoral Diversity

Although this special edition has no geographic and sectoral scope, we particularly encourage submissions addressing:

  • Developing countries and emerging economies;
  • Small island developing states and climate-vulnerable regions;
  • Indigenous food systems and traditional preservation methods;
  • Urban agriculture and vertical farming waste management;
  • Food service, retail, and household waste reduction strategies.

Research Focus Areas

Primary Research Themes:

  1. Technology-Enabled Solutions: AI/ML applications, blockchain-IoT integration, smart packaging, sensor technologies.
  2. Sustainable Food Systems: Circular economy models, life cycle assessments, environmental impact analysis.
  3. Behavioral Interventions: Consumer psychology, social determinants, intervention effectiveness.
  4. Policy and Governance: Regulatory frameworks, economic instruments, institutional mechanisms.
  5. Climate Adaptation: Resilience strategies, extreme weather responses, adaptive management.
  6. Value Chain Optimization: Supply chain efficiency, logistics improvement, storage innovations.

Methodological Approaches Welcomed:

  • Quantitative impact assessments with measurable outcomes;
  • Economic modeling and cost-effectiveness analysis;
  • Life cycle assessment and environmental footprint studies;
  • Behavioral experiments and randomized controlled trials;
  • Case studies with implementation frameworks;
  • Systematic reviews and meta-analyses;
  • Mixed-methods research combining quantitative and qualitative approaches.

Dr. Ali Khoddami
Dr. Vito Butardo
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-anonymized 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

  • food system
  • food security
  • food sustainability
  • value adding to food waste
  • food loss
  • world hunger
  • consumer behavior
  • artificial intelligence
  • blockchain technology
  • Internet of Things
  • circular economy
  • climate resilience
  • digital transformation
  • supply chain optimization
  • behavioral intervention
  • policy framework

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Published Papers (4 papers)

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Research

13 pages, 1124 KB  
Article
Child-Driven Assessment of Plate Waste and Food-Waste Awareness in Primary Schools
by Barbara Peraboni, Vanessa Lupetti and Vera Lavelli
Foods 2026, 15(12), 2231; https://doi.org/10.3390/foods15122231 - 20 Jun 2026
Viewed by 700
Abstract
Food waste in school canteens is widely recognized as a significant issue because of its economic consequences, environmental impact, and implications for children’s health. Previous studies have used robust methods to quantify this problem and assess mitigation strategies. This case study of primary [...] Read more.
Food waste in school canteens is widely recognized as a significant issue because of its economic consequences, environmental impact, and implications for children’s health. Previous studies have used robust methods to quantify this problem and assess mitigation strategies. This case study of primary school children (6–11 years) used a child-driven approach to measure plate waste and explore reasons for uneaten food and concern about waste. The results indicated that a group of volunteer children (n = 104) directly involved in the assessment were able to evaluate their peers’ food waste, obtaining estimates comparable to those reported in previous studies (mean: 108.4 g per child). The students for whom food waste was measured (n = 443) took part in interviews and proved to be active participants capable of evaluating their own context, although their level of engagement could be further strengthened. Among children who reported leaving food uneaten, a substantial proportion provided specific reasons; nevertheless, generic explanations accounted for 26% of responses for the first course and 35% for the second. Approximately 78.5% of the children demonstrated a high level of sensitivity to food waste, recognizing its direct effects (wasting their parents’ money), indirect effects (waste in a broader sense), and social effects (world hunger/poverty). Establishing a baseline for children’s sensitivity to their own food waste is therefore needed, as it could serve as an indicator of both the urgency and the effectiveness of educational interventions. Full article
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19 pages, 1824 KB  
Article
Comparing the Environmental Impacts of Representative Food Donation and Redistribution Strategies
by Zhijian Guo, Tianhong Mu, Beth Feingold, Akiko Hosler, Christine Bozlak, Stacy Pettigrew and Xiaobo Romeiko
Foods 2026, 15(4), 645; https://doi.org/10.3390/foods15040645 - 11 Feb 2026
Cited by 3 | Viewed by 1147
Abstract
Assessing the environmental impacts of food donation systems is necessary to support food donation policy and management. Few life cycle assessment (LCA) studies have investigated the environmental impacts of food donation systems. This comparative LCA study analyzed the environmental impacts of eight different [...] Read more.
Assessing the environmental impacts of food donation systems is necessary to support food donation policy and management. Few life cycle assessment (LCA) studies have investigated the environmental impacts of food donation systems. This comparative LCA study analyzed the environmental impacts of eight different donation scenarios reflecting diverse supply chain configurations and operational management options, using 391.8 kg of redistributed food over two weeks as the functional unit. Each of the eight scenarios presented net environmental benefits for all five life cycle environmental impact categories: 132~233 kg CO2-eq for global warming potential, 2.30~5.24 kg SO2-eq for acidification potential, 1.13~2.04 kg N-eq for eutrophication potential, 1791~3140 MJ for cumulative energy demand, and 3.7 × 107~5.8 × 107 m3 for water resource depletion. The highest magnitudes of environmental benefits were achieved when intermediary organizations collected and gleaned the surplus food from donors and then transported it to food pantries (the eighth scenario). Improving the quality of donated food, augmenting the sorting capacities of emergency organizations, and shortening transportation distances could increase the environmental benefits of food donation systems. The environmental impact intensities of production and waste management choices for food waste generated during the redistribution of the surplus food ranked as the top influential factors for the five environmental impacts. Rescuing surplus food from donors who landfilled the wasted food tended to yield larger environmental benefits than from donors who composted it. Overall, this study finds that improving donation quality and increasing the capacities of emergency food organizations are crucial for maximizing the environmental benefits of the fresh produce donation system. Full article
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23 pages, 2320 KB  
Article
Sustainable Recovery from Shocks: Policies and Partnerships for Fresh Produce Rescue and Environmental Impact Reduction
by Mariana T. Koutsopoulos, Luis F. Luna-Reyes, Christine T. Bozlak, Roni Neff, Tianhong Mu, Xiaobo Xue Romeiko, Zhijian Guo, Akiko S. Hosler, Stacy M. Pettigrew, Natasha Pernicka, Peter Crasto-Donnelly, Amy Klein and Beth J. Feingold
Foods 2026, 15(3), 582; https://doi.org/10.3390/foods15030582 - 5 Feb 2026
Cited by 1 | Viewed by 1520
Abstract
Food policies that respond to shocks and support nutritious diets for vulnerable populations can enhance resilience, support social equity, and reduce environmental damage. Using a simulation model, we evaluated the effectiveness of two food redistribution policies—Nourish New York, a program providing funds to [...] Read more.
Food policies that respond to shocks and support nutritious diets for vulnerable populations can enhance resilience, support social equity, and reduce environmental damage. Using a simulation model, we evaluated the effectiveness of two food redistribution policies—Nourish New York, a program providing funds to food rescue organizations to purchase food directly from farmers, and the Food Donation and Food Scraps Recycling Law (an organics “waste ban”)—in response to a shock such as the COVID-19 pandemic. We assessed policy based on recovered food and life cycle carbon and water footprints over 10 years. Both policies improved produce donations during post-shock. The waste ban increased waste at feeding organizations; diverting unavoidable food waste to composting and anaerobic digestion mitigated its carbon footprint. Enhanced coordination and partnerships within the food redistribution network were crucial for ensuring that produce reached those in need, ultimately reducing long-term environmental impacts. Implementing multiple strategies that enhance recovery from farms and retail, while strengthening the organizational capacity of the food redistribution network, can simultaneously advance food security and environmental goals. Full article
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26 pages, 3826 KB  
Article
Bacterial Cellulose Production by a Novel Levilactobacillus brevis Isolate Using Response Surface-Optimised Agro-Industrial Substrates
by Panyot Mongkolchat, François Malherbe, Enzo Palombo and Vito Butardo, Jr.
Foods 2026, 15(2), 394; https://doi.org/10.3390/foods15020394 - 22 Jan 2026
Cited by 2 | Viewed by 2626
Abstract
High culture medium costs economically constrain bacterial cellulose (BC) production. In parallel, agro-industrial wastes are plentiful but often underutilised sources of carbon and nitrogen substrates that could support microbial growth and metabolite production. This study aimed to bioconvert agro-industrial waste sustainably into BC [...] Read more.
High culture medium costs economically constrain bacterial cellulose (BC) production. In parallel, agro-industrial wastes are plentiful but often underutilised sources of carbon and nitrogen substrates that could support microbial growth and metabolite production. This study aimed to bioconvert agro-industrial waste sustainably into BC using response surface methodology. A novel lactic acid bacterium, Levilactobacillus brevis DSS.01, isolated from nata de coco wastewater, was evaluated alongside Acetobacter tropicalis KBC and Komagataeibacter xylinus TISTR 086 for BC production using Australian agro-industrial wastes. Preliminary screening identified pear pomace and rice bran as optimal low-cost carbon and nitrogen sources, respectively. The response surface methodology employing Box–Behnken Design determined the optimal agro-industrial waste medium composition for L. brevis DSS.01 to produce BC at 1.56 ± 0.15 g/L. The optimised agro-industrial waste medium substituted 85% of standard Hestrin-Schramm medium components, suggesting a significant reduction in culture medium and production costs. Scanning electron microscopy revealed BC fibres from L. brevis DSS.01 maintained a uniform diameter. Fourier transform infrared spectroscopy and X-ray diffraction analyses indicated minimal structural deviation in BC produced from optimised agro-industrial waste medium versus standard medium. These findings demonstrate economic and sustainable BC production through valorisation of agro-industrial residues, establishing lactic acid bacteria as alternative BC producers with potential food-grade applications in circular economy frameworks. Full article
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