12
views
0
recommends
+1 Recommend
0 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: found
      Is Open Access

      Persea Americana Agro-Industrial Waste Biorefinery for Sustainable High-Value-Added Products

      review-article

      Read this article at

      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          Significant problems have arisen in recent years, such as global warming and hunger. These complications are related to the depletion and exploitation of natural resources, as well as environmental pollution. In this context, bioprocesses and biorefinery can be used to manage agro-industrial wastes for obtaining high-value-added products. A large number of by-products are composed of lignin and cellulose, having the potential to be exploited sustainably for chemical and biological conversion. The biorefinery of agro-industrial wastes has applications in many fields, such as pharmaceuticals, medicine, material engineering, and environmental remediation. A comprehensive approach has been developed toward the agro-industrial management of avocado ( Persea americana) biomass waste, which can be transformed into high-value-added products to mitigate global warming, save non-renewable energy, and contribute to health and science. Therefore, this work presents a comprehensive review on avocado fruit waste biorefinery and its possible applications as biofuel, as drugs, as bioplastics, in the environmental field, and in emerging nanotechnological opportunities for economic and scientific growth.

          Related collections

          Most cited references141

          • Record: found
          • Abstract: found
          • Article: not found

          Pretreatment technologies for an efficient bioethanol production process based on enzymatic hydrolysis: A review.

          Biofuel produced from lignocellulosic materials, so-called second generation bioethanol shows energetic, economic and environmental advantages in comparison to bioethanol from starch or sugar. However, physical and chemical barriers caused by the close association of the main components of lignocellulosic biomass, hinder the hydrolysis of cellulose and hemicellulose to fermentable sugars. The main goal of pretreatment is to increase the enzyme accessibility improving digestibility of cellulose. Each pretreatment has a specific effect on the cellulose, hemicellulose and lignin fraction thus, different pretreatment methods and conditions should be chosen according to the process configuration selected for the subsequent hydrolysis and fermentation steps. This paper reviews the most interesting technologies for ethanol production from lignocellulose and it points out several key properties that should be targeted for low-cost and advanced pretreatment processes. Copyright 2009 Elsevier Ltd. All rights reserved.
            Bookmark
            • Record: found
            • Abstract: found
            • Article: not found

            Lignin valorization: improving lignin processing in the biorefinery.

            Research and development activities directed toward commercial production of cellulosic ethanol have created the opportunity to dramatically increase the transformation of lignin to value-added products. Here, we highlight recent advances in this lignin valorization effort. Discovery of genetic variants in native populations of bioenergy crops and direct manipulation of biosynthesis pathways have produced lignin feedstocks with favorable properties for recovery and downstream conversion. Advances in analytical chemistry and computational modeling detail the structure of the modified lignin and direct bioengineering strategies for future targeted properties. Refinement of biomass pretreatment technologies has further facilitated lignin recovery, and this coupled with genetic engineering will enable new uses for this biopolymer, including low-cost carbon fibers, engineered plastics and thermoplastic elastomers, polymeric foams, fungible fuels, and commodity chemicals.
              Bookmark
              • Record: found
              • Abstract: not found
              • Article: not found

              Nanocellulose in biomedicine: Current status and future prospect

                Bookmark

                Author and article information

                Contributors
                Role: Academic Editor
                Role: Academic Editor
                Role: Academic Editor
                Journal
                Polymers (Basel)
                Polymers (Basel)
                polymers
                Polymers
                MDPI
                2073-4360
                25 May 2021
                June 2021
                : 13
                : 11
                : 1727
                Affiliations
                [1 ]School of Chemistry, National University of Costa Rica (UNA), Heredia 86-3000, Costa Rica; tonyms1596@ 123456gmail.com (A.M.-S.); gonzalez.ramirez.abigail16@ 123456gmail.com (A.R.-G.)
                [2 ]National Laboratory of Nanotechnology (LANOTEC), National Center for High Technology (CeNAT), San José 1174-1200, Costa Rica; luis.castillohenriquez@ 123456ucr.ac.cr
                [3 ]Faculty of Pharmacy, University of Costa Rica, San José 11501-2060, Costa Rica
                [4 ]Nuclear Research Center, Faculty of Science, Universidad de la República (UdelaR), Montevideo 11300, Uruguay; mary@ 123456cin.edu.uy
                Author notes
                [* ]Correspondence: jvegab@ 123456gmail.com
                Author information
                https://orcid.org/0000-0001-5276-4772
                https://orcid.org/0000-0002-2002-1744
                Article
                polymers-13-01727
                10.3390/polym13111727
                8197556
                34070330
                c5bc0898-36ba-408b-bebd-05e26fc6c623
                © 2021 by the authors.

                Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license ( https://creativecommons.org/licenses/by/4.0/).

                History
                : 02 April 2021
                : 20 May 2021
                Categories
                Review

                avocado,biofuel,biomass,biopolymers,by-product,renewable energy,waste valorization

                Comments

                Comment on this article