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Agriculture
Special Issues
Agricultural Waste Biomass Management Strategies for Environmental Sustainability
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Agricultural Waste Biomass Management Strategies for Environmental Sustainability

A special issue of Agriculture (ISSN 2077-0472). This special issue belongs to the section "Agricultural Technology".

Deadline for manuscript submissions: closed (25 January 2025) | Viewed by 2090

Special Issue Editors

Dr. Esther Trigueros

E-Mail Website
Guest Editor
Department of Biotechnology and Food Science, Chemical Engineering Section, University of Burgos, 09001 Burgos, Spain
Interests: agro-food industry; waste valorization; circular economy; emerging technologies; supercritical fluids; bioactive compounds; bioactivity; functional foods
Special Issues, Collections and Topics in MDPI journals
Dr. Andreia Oliveira

E-Mail Website
Guest Editor
REQUIMTE/LAQV, Laboratório de Farmacognosia, Faculdade de Farmácia da Universidade do Porto, 4050-313 Porto, Portugal
Interests: natural products; food science and technology; ethnopharmacology; metabolomics; plant sciences; inflammatory-related diseases
Dr. Elixabet Díaz-de-Cerio

E-Mail Website
Guest Editor
Universidad de Valladolid, Valladolid, Spain
Interests: green extraction techniques; circular economy; food by-products; food science; bioactive compounds; phenolic compounds; bioactivity; chromatography; mass spectrometry
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The growing population and increased food demand have driven a surge in agricultural and industrial activities, heightening the associated risks of their negative impacts. Minimizing agriculture waste production has become a significant concern due to the inefficient disposal practices. Often, agriculture residues are disposed of and burned, contributing to significant environmental consequences. To tackle this issue, the urgent reduction of food waste and efficient management practices are pivotal challenges in the agriculture system.

The papers included in this Special Issue explore innovative approaches and solutions to address the challenges posed by agricultural waste biomass within the context of environmental sustainability, covering efficient waste management, biomass utilization, and circular economy principles. These contributions will provide valuable insights into sustainable agricultural practices and environmental conservation. Submissions exploring the impact of management methods and socioeconomic factors on agricultural waste systems sustainability are welcomed, including topics like minimizing agricultural waste production, efficient waste management, agroindustrial wastes valorization, agricultural biomass ecological management, and eco-economic analysis of biomass management strategies. Both original research articles and reviews are welcome.

Dr. Esther Trigueros
Dr. Andreia Oliveira
Dr. Elixabet Díaz-de-Cerio
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. Agriculture 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 2600 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

  • green agriculture
  • biomass
  • agricultural by-products
  • valorization
  • bioenergy production
  • resource utilization
  • circular economy

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Published Papers (1 paper)

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Review

19 pages, 1148 KiB  
Review
Dynamic Modeling of Convective Drying of Pineapple Peels: Bioactive, Physical, and Thermal Properties
by Raniza de Oliveira Carvalho, Rossana Maria Feitosa de Figueirêdo, Alexandre José de Melo Queiroz, Francislaine Suelia dos Santos, Mailson Gonçalves Gregório, Lumara Tatiely Santos Amadeu, Henrique Valentim Moura, Nailton de Macedo Albuquerque Junior, Fabrícia Santos Andrade, Emily Bezerra Coutinho Cruz, Emerson Zambrano Lara, Josivanda Palmeira Gomes and Marta Suely Madruga
Agriculture 2025, 15(6), 609; https://doi.org/10.3390/agriculture15060609 - 12 Mar 2025
Viewed by 1018
Abstract
The fruit processing agroindustry generates waste, mainly composed of peels, which are often discarded but can be utilized as ingredients for developing new food products. However, their high perishability requires the application of preservation techniques, such as drying, which not only extends shelf [...] Read more.
The fruit processing agroindustry generates waste, mainly composed of peels, which are often discarded but can be utilized as ingredients for developing new food products. However, their high perishability requires the application of preservation techniques, such as drying, which not only extends shelf life but also adds value and enables their conversion into flour, expanding their applications. This study evaluated the convective drying of pineapple peels for flour production, analyzing bioactive, physical, and thermal properties. Moisture was reduced by 91%, reaching a hygroscopic equilibrium of 6.84%. The Two-Term model provided the best fit for the data, with an R2 above 0.9997. Effective diffusivity increased with temperature, ranging from 2.83 × 10−10 m2/s to 7.96 × 10−10 m2/s, with an activation energy of 47.90 kJ/mol, as described by the Arrhenius equation. Thermodynamic properties indicated an endothermic, non-spontaneous process, with reductions in enthalpy (45.21; 45.04 kJ/mol) and entropy (−0.2797; −0.2802 kJ/mol·K) and an increase in Gibbs free energy (135.60–141.20 kJ/mol) at higher temperatures. Fresh peels contained high levels of bioactive compounds, such as phenolics (1740.90 mg GAE/100 g d.b.) and tannins (613.42 mg TAE/100 g d.b.), which were best preserved at 70 °C. Drying altered the physical properties of the flour, resulting in higher absolute, apparent and compact densities, lower porosity (75.81%), and a reduced angle of repose (21.22°) suggesting greater material stability. Thermal analysis identified five mass loss events related to the degradation of water, carbohydrates, proteins, and fibers. Differential scanning calorimetry confirmed the thermal stability of the treatments. Thus, the study highlights pineapple peels as a promising raw material for producing nutrient-rich functional flour, with a drying temperature being a crucial factor in preserving bioactive compounds and achieving desirable product characteristics. Full article
(This article belongs to the Special Issue Agricultural Waste Biomass Management Strategies for Environmental Sustainability)
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