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(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Enzymatically and/or thermally treated Macroalgae biomass as feedstock for fermentative H2 production

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Author(s):
Emelin Leandro Rodrigues [1] ; Bruna Constante Fonseca [2] ; Valeria Cress Gelli [3] ; Sibeli Carli [4] ; Luana Parras Meleiro [5] ; Rosa Prazeres Melo Furriel [6] ; Valeria Reginatto [7]
Total Authors: 7
Affiliation:
[1] Universidade de São Paulo – USP. Faculdade de Filosofia Ciências e Letras de Ribeirão Preto – FFCLRP. Departamento de Química - Brasil
[2] Universidade de São Paulo – USP. Faculdade de Filosofia Ciências e Letras de Ribeirão Preto – FFCLRP. Departamento de Química - Brasil
[3] Secretaria de Agricultura e Abastecimento do Estado de São Paulo. Agência Paulista de Pesquisa Agropecuária. Departamento de Pesca –Núcleo de pesquisa e desenvolvimento do Litoral Norte - Brasil
[4] Universidade de São Paulo – USP. Faculdade de Filosofia Ciências e Letras de Ribeirão Preto – FFCLRP. Departamento de Química - Brasil
[5] Universidade de São Paulo – USP. Faculdade de Filosofia Ciências e Letras de Ribeirão Preto – FFCLRP. Departamento de Química - Brasil
[6] Universidade de São Paulo – USP. Faculdade de Filosofia Ciências e Letras de Ribeirão Preto – FFCLRP. Departamento de Química - Brasil
[7] Universidade de São Paulo – USP. Faculdade de Filosofia Ciências e Letras de Ribeirão Preto – FFCLRP. Departamento de Química - Brasil
Total Affiliations: 7
Document type: Journal article
Source: MATERIA-RIO DE JANEIRO; v. 24, n. 2 2019-06-10.
Abstract

ABSTRACT Due to its high carbohydrate content, algae biomass can be employed as feedstock to produce hydrogen (H2) by fermentation. However, to make the carbohydrates entrapped within the cell wall more bioavailable, algae biomass must be treated before fermentation. We submitted Kappaphyccus alvarezzi macroalgae biomass to autoclave (at 120 °C and 1 atm for 6 h) treatment and/or enzymatic (Celluclast® and/or a recombinant β-glucosidase) hydrolysis, to break down complex carbohydrates into available sugars that were used to produce H2 by fermentation. Macroalgae biomass treated with Celluclast®+β-glucosidase and with combined thermal treatment and enzymatic hydrolysis reached very similar TRS productivities, 0.24 and 0.22 g of TRS/L.h, respectively. The enzymatically treated biomass was employed as feedstock to produce H2 by Clostridium beijerinckii Br21, which afforded high yield: 21.3 mmol of H2/g of dry algae biomass. Hence, treatment with Celluclast® and recombinant β-glucosidase provided macroalgae biomass for enhanced bioconversion to H2 by C. beijerinckii Br21. (AU)

FAPESP's process: 15/06074-1 - Third-generation biohydrogen production from algae biomass and its hydrolysis derivatives
Grantee:Valeria Reginatto Spiller
Support Opportunities: Program for Research on Bioenergy (BIOEN) - Regular Program Grants