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Agriculture
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Agriculture Waste Biomass Production for Bioenergy and Bioproducts
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Agriculture Waste Biomass Production for Bioenergy and Bioproducts

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

Deadline for manuscript submissions: closed (15 May 2023) | Viewed by 2796

Special Issue Editor

Dr. Shiv Prasad

E-Mail Website
Guest Editor
Indian Agricultural Research Institute (ICAR), New Delhi, India
Interests: environment; agriculture; biomass waste; bioenergy; bioproducts green technology; circular economy; sustainable development

Special Issue Information

Dear Colleagues,

Fossil fuel use releases air pollutants and greenhouse gases responsible for air pollution and global climate change. In addition, they have negatively impacted the environment and biological systems. To fight these consequences, intensive measures are being taken globally to switch from fossil fuels to renewable bioenergies. Agriculture waste biomass, such as residues from crop products, food processing, waste materials from livestock, and agroforestry wastes, has enormous potential to produce various bioenergies and bioproducts. Biologically and thermochemically, biomass waste can be converted into alternative energy like bioethanol, biodiesel, biohydrogen, biogas, syngas, bio-oil, biochar, and many other valuable bio-products and chemicals. Bioenergy production from agricultural waste biomass is an eco-friendly alternative to fossil fuels. It is also helpful in achieving UN Sustainable Development Goals (SDGs) focus on the concerted global effort to assure access to affordable, reliable, sustainable energy for all. It is also anticipated that agriculture waste biomass production and its use for bioenergy and bioproducts will boost domestic energy demand and supply balance. Bioenergy and bioproducts as clean and green technology would play significant roles in sustainable circular economy development.

Dr. Shiv Prasad
Guest Editor

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 monthly 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

  • agriculture
  • biomass
  • waste
  • livestock bioenergy
  • bioproducts green technology
  • circular economy
  • sustainable development

Published Papers (2 papers)

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Research

16 pages, 18964 KiB  
Article
Minimization of Inhibitor Generation in Rice Straw Hydrolysate Using RSM Optimization Technique
by Vikas Chandra Gupta, Meenu Singh, Shiv Prasad and Bhartendu Nath Mishra
Agriculture 2023, 13(7), 1431; https://doi.org/10.3390/agriculture13071431 - 20 Jul 2023
Viewed by 1194
Abstract
Ethanol production from lignocellulosic biomass comprises pretreatment, hydrolysis, and fermentation. However, several inhibitors are generated during rice straw chemical hydrolysis, including furfural, 5-hydroxymethylfurfural (HMF), and phenolics. These inhibitors, i.e., furfural and HMF, are toxic to yeast cells, can negatively impact yeast growth and [...] Read more.
Ethanol production from lignocellulosic biomass comprises pretreatment, hydrolysis, and fermentation. However, several inhibitors are generated during rice straw chemical hydrolysis, including furfural, 5-hydroxymethylfurfural (HMF), and phenolics. These inhibitors, i.e., furfural and HMF, are toxic to yeast cells, can negatively impact yeast growth and metabolism, and reduce the process efficiency and production yield. Total phenolics are also reported to inhibit yeast growth and metabolism and act as a source of reactive oxygen species (ROS), which can damage yeast cells. Therefore, minimizing the generation of these inhibitors during rice straw hydrolysis is essential to improve the efficiency and yield of ethanol fermentation. Optimization of process variables can help reduce inhibitor generation and increase the efficiency of used detoxification methods such as adsorption, ion exchange, and biological methods. This study aimed to minimize inhibitor generation during the chemical hydrolysis of rice straw biomass. Minitab 17 software was employed and response surface curve regression analysis was used to develop a quadratic equation of an optimized process for minimized release of inhibitors molecules. The main inhibitors in pretreated rice straw hydrolysate identified were furfural (48.60%/100 g solid biomass), HMF (2.32%/100 g solid biomass), and total phenolics (1.65%/100 g solid biomass). The optimal pretreatment conditions were a biomass solid loading rate of 15% w/v, an H2SO4concentration of 12% v/v, a pretreatment reaction time of 30 min, and a temperature of 100 °C. Optimization of these process variables reduced the inhibitor generation by up to one and a half fold. Full article
(This article belongs to the Special Issue Agriculture Waste Biomass Production for Bioenergy and Bioproducts)
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25 pages, 4831 KiB  
Article
Prospects for Bioenergy Development Potential from Dedicated Energy Crops in Ecuador: An Agroecological Zoning Study
by Christian R. Parra, Angel D. Ramirez, Luis Manuel Navas-Gracia, David Gonzales and Adriana Correa-Guimaraes
Agriculture 2023, 13(1), 186; https://doi.org/10.3390/agriculture13010186 - 11 Jan 2023
Cited by 3 | Viewed by 2616
Abstract
Most climate change mitigation scenarios rely on the incremental use of biomass as energy feedstock. Therefore, increasing the share of alternative sustainable energy sources as biomass is crucial to provide both peak and base electricity loads in future scenarios. The bioenergy potential of [...] Read more.
Most climate change mitigation scenarios rely on the incremental use of biomass as energy feedstock. Therefore, increasing the share of alternative sustainable energy sources as biomass is crucial to provide both peak and base electricity loads in future scenarios. The bioenergy potential of Ecuador has been addressed for agricultural by-products but not for dedicated bioenergy crops. Agricultural zoning studies have been developed for food crops but not for energy crops. Currently, the bioenergy share of electricity produced in Ecuador (1.4%) comes mainly from the use of sugar cane bagasse from sugar production. This study aims to identify potential sustainable bioenergy resources for continental Ecuador using agroecological zoning methodologies and considerations regarding land management, food security, in-direct land use change and ecological and climate change risks. The results identified 222,060.71 ha available to grow dedicated bioenergy crops and potential electricity production of 8603 GWh/year; giant reed ranks first with a potential net energy yield of 4024 GWh per year, and Manabí province presents the highest potential with 3768 GWh/year. Large-scale deployment of bioenergy in Ecuador would require the study of sustainability considerations of each project. The species studied are traditional bioenergy crops; research on novel species is encouraged. Full article
(This article belongs to the Special Issue Agriculture Waste Biomass Production for Bioenergy and Bioproducts)
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