For Publishers
DiscoveryMetadataPeer reviewHostingPublishing
For Researchers
JoinPublishReviewCollect
Register
Blog
About
Search
Advanced search
My ScienceOpen
Search
For Publishers
For Researchers
Blog
About
130
views
220
references
 Top references
cited by
434
    
0 reviews
 Review
0
comments
 Comment
0
recommends
+1 Recommend
0 collections
    0
    shares
      160
      similar
       All similar
      • Record: found
      • Abstract: found
      • Article: found
      Is Open Access

      The promising future of microalgae: current status, challenges, and optimization of a sustainable and renewable industry for biofuels, feed, and other products

      review-article

      Read this article at

      ScienceOpenPublisherPMC
      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

          Microalgae have recently attracted considerable interest worldwide, due to their extensive application potential in the renewable energy, biopharmaceutical, and nutraceutical industries. Microalgae are renewable, sustainable, and economical sources of biofuels, bioactive medicinal products, and food ingredients. Several microalgae species have been investigated for their potential as value-added products with remarkable pharmacological and biological qualities. As biofuels, they are a perfect substitute to liquid fossil fuels with respect to cost, renewability, and environmental concerns. Microalgae have a significant ability to convert atmospheric CO 2 to useful products such as carbohydrates, lipids, and other bioactive metabolites. Although microalgae are feasible sources for bioenergy and biopharmaceuticals in general, some limitations and challenges remain, which must be overcome to upgrade the technology from pilot-phase to industrial level. The most challenging and crucial issues are enhancing microalgae growth rate and product synthesis, dewatering algae culture for biomass production, pretreating biomass, and optimizing the fermentation process in case of algal bioethanol production. The present review describes the advantages of microalgae for the production of biofuels and various bioactive compounds and discusses culturing parameters.

          Related collections

          Most cited references220

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

          Biofuels from microalgae—A review of technologies for production, processing, and extractions of biofuels and co-products

          Liam Brennan, Philip Owende (2010)
          Article 0 comments Cited 751 times – based on 0 reviews     Review now
            Bookmark
            • Record: found
            • Abstract: found
            • Article: not found

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

            P Alvira, E. Tomás-Pejó, M Ballesteros … (2010)
            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.
            Article 0 comments Cited 667 times – based on 0 reviews     Review now
              Bookmark
              • Record: found
              • Abstract: found
              • Article: not found

              Microalgae for oil: strain selection, induction of lipid synthesis and outdoor mass cultivation in a low-cost photobioreactor.

              Liliana Rodolfi, Graziella Chini Zittelli, Niccolò Bassi … (2009)
              Thirty microalgal strains were screened in the laboratory for their biomass productivity and lipid content. Four strains (two marine and two freshwater), selected because robust, highly productive and with a relatively high lipid content, were cultivated under nitrogen deprivation in 0.6-L bubbled tubes. Only the two marine microalgae accumulated lipid under such conditions. One of them, the eustigmatophyte Nannochloropsis sp. F&M-M24, which attained 60% lipid content after nitrogen starvation, was grown in a 20-L Flat Alveolar Panel photobioreactor to study the influence of irradiance and nutrient (nitrogen or phosphorus) deprivation on fatty acid accumulation. Fatty acid content increased with high irradiances (up to 32.5% of dry biomass) and following both nitrogen and phosphorus deprivation (up to about 50%). To evaluate its lipid production potential under natural sunlight, the strain was grown outdoors in 110-L Green Wall Panel photobioreactors under nutrient sufficient and deficient conditions. Lipid productivity increased from 117 mg/L/day in nutrient sufficient media (with an average biomass productivity of 0.36 g/L/day and 32% lipid content) to 204 mg/L/day (with an average biomass productivity of 0.30 g/L/day and more than 60% final lipid content) in nitrogen deprived media. In a two-phase cultivation process (a nutrient sufficient phase to produce the inoculum followed by a nitrogen deprived phase to boost lipid synthesis) the oil production potential could be projected to be more than 90 kg per hectare per day. This is the first report of an increase of both lipid content and areal lipid productivity attained through nutrient deprivation in an outdoor algal culture. The experiments showed that this marine eustigmatophyte has the potential for an annual production of 20 tons of lipid per hectare in the Mediterranean climate and of more than 30 tons of lipid per hectare in sunny tropical areas.
              Article 0 comments Cited 541 times – based on 0 reviews     Review now
                Bookmark
                All references

                Author and article information

                Contributors
                Muhammad Imran Khan: imranbiotech1@gmail.com
                Jin Hyuk Shin: geobae@biolsystems.com
                Jong Deog Kim: +82-61-659-7305 , pasteur@jnu.ac.kr
                Journal
                Journal ID (nlm-ta): Microb Cell Fact
                Journal ID (iso-abbrev): Microb. Cell Fact
                Title: Microbial Cell Factories
                Publisher: BioMed Central (London )
                ISSN (Electronic): 1475-2859
                Publication date (Electronic): 5 March 2018
                Publication date PMC-release: 5 March 2018
                Publication date Collection: 2018
                Volume: 17
                Electronic Location Identifier: 36
                Affiliations
                [1 ]ISNI 0000 0001 0356 9399, GRID grid.14005.30, Department of Biotechnology, , Chonnam National University, ; San 96-1, Dun-Duk Dong, Yeosu, Chonnam 550-749 South Korea
                [2 ]ISNI 0000 0001 0356 9399, GRID grid.14005.30, Research Center on Anti-Obesity and Health Care, , Chonnam National University, ; San 96-1, Dun-Duk Dong, Yeosu, Chonnam 550-749 South Korea
                Article
                Publisher ID: 879
                DOI: 10.1186/s12934-018-0879-x
                PMC ID: 5836383
                PubMed ID: 29506528
                SO-VID: b1ebaa2f-ab3d-45d4-bf24-8ba188c5da2d
                Copyright © © The Author(s) 2018
                License:

                Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License ( http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver ( http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

                History
                Date received : 23 December 2017
                Date accepted : 17 February 2018
                Categories
                Subject: Review
                Custom metadata
                issue-copyright-statement © The Author(s) 2018

                ScienceOpen disciplines: Biotechnology
                Keywords: microalgae,biofuels,carbon dioxide mitigation,viable biomass,culture parameters,pretreatment,bioactive compounds
                Data availability:
                ScienceOpen disciplines: Biotechnology
                Keywords: microalgae, biofuels, carbon dioxide mitigation, viable biomass, culture parameters, pretreatment, bioactive compounds

                Comments

                Comment on this article

                scite_

                Similar content160

                See all similar

                Cited by425

                See all cited by

                Most referenced authors2,254

                See all reference authors