8
views
0
recommends
+1 Recommend
0 collections
    0
    shares
      • Record: found
      • Abstract: not found
      • Article: not found

      Valorization of algal cells for biomass and bioenergy production from wastewater: Sustainable strategies, challenges, and techno-economic limitations

      , , , , ,
      Renewable and Sustainable Energy Reviews
      Elsevier BV

      Read this article at

      ScienceOpenPublisher
      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.

          Related collections

          Most cited references178

          • 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

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

            Recovery of microalgal biomass and metabolites: process options and economics

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

              Algae acquire vitamin B12 through a symbiotic relationship with bacteria.

              Vitamin B12 (cobalamin) was identified nearly 80 years ago as the anti-pernicious anaemia factor in liver, and its importance in human health and disease has resulted in much work on its uptake, cellular transport and utilization. Plants do not contain cobalamin because they have no cobalamin-dependent enzymes. Deficiencies are therefore common in strict vegetarians, and in the elderly, who are susceptible to an autoimmune disorder that prevents its efficient uptake. In contrast, many algae are rich in vitamin B12, with some species, such as Porphyra yezoensis (Nori), containing as much cobalamin as liver. Despite this, the role of the cofactor in algal metabolism remains unknown, as does the source of the vitamin for these organisms. A survey of 326 algal species revealed that 171 species require exogenous vitamin B12 for growth, implying that more than half of the algal kingdom are cobalamin auxotrophs. Here we show that the role of vitamin B12 in algal metabolism is primarily as a cofactor for vitamin B12-dependent methionine synthase, and that cobalamin auxotrophy has arisen numerous times throughout evolution, probably owing to the loss of the vitamin B12-independent form of the enzyme. The source of cobalamin seems to be bacteria, indicating an important and unsuspected symbiosis.
                Bookmark

                Author and article information

                Contributors
                (View ORCID Profile)
                (View ORCID Profile)
                (View ORCID Profile)
                Journal
                Renewable and Sustainable Energy Reviews
                Renewable and Sustainable Energy Reviews
                Elsevier BV
                13640321
                April 2022
                April 2022
                : 157
                : 112024
                Article
                10.1016/j.rser.2021.112024
                bf86e556-3f20-4b6d-97ed-cadfb6d57a78
                © 2022

                https://www.elsevier.com/tdm/userlicense/1.0/

                History

                Comments

                Comment on this article