4.7 Article

Seaweed biorefinery: A sustainable process for valorising the biomass of brown seaweed

期刊

JOURNAL OF CLEANER PRODUCTION
卷 263, 期 -, 页码 -

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ELSEVIER SCI LTD
DOI: 10.1016/j.jclepro.2020.121359

关键词

Alginate; Cellulose; Integrated process; Seaweed biorefinery; Sargassum tenerrimum

资金

  1. CSIR [MLP0026]
  2. DBT

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Marine macroalgal resources are gaining importance as one of the promising feedstocks for the production of food, feed, chemicals and energy which are upwardly growing worldwide. Recent studies have convincingly demonstrated the scope and potentials of seaweeds for the production of diverse bioproducts of commercial importance. The present study demonstrates an integrated strategy for sustainable utilisation of wet brown algal biomass (Sargassum) in laboratory-scale at 1 kg batch processing yielding 541.33 +/- 5.50 mL sap, 32 +/- 1.5 g alginic acid, 3.8 +/- 0.2 g protein concentrate and 10 +/- 0.5 g cellulose. Furthermore, the effluent obtained from the process was used to produce as much as 115 +/- 5 g salt. The present integrated process has several advantages over contemporary ones in terms of reduction in input chemicals, and total utilisation of feedstock with effluent management. The green matrix analysis and economic assessment suggested that the commercial-scale implementation of the process could help to reduce the energy and chemical inputs for components extraction which are the major challenges with seaweed bioprocessing. (C) 2020 Elsevier Ltd. All rights reserved.

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