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Microalgae cultivation in sugarcane vinasse: Selection, growth and biochemical characterization

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논문

Microalgae cultivation in sugarcane vinasse: Selection, growth and biochemical characterization

학술지

Bioresource technology : biomass, bioenergy, biowastes, conversion technologies, biotransformations, production technologies

저자명

Santana, Hugo; Cereijo, Carolina R.; Teles, Valé rya C.; Nascimento, Rodrigo C.; Fernandes, Maiara S.; Brunale, Patrí cia; Campanha, Raquel C.; Soares, Itâ nia P.; Silva, Flá via C.P.; Sabaini, Priscila S.; Siqueira, Fé lix G.; Brasil, Bruno S.A.F.

초록

<P><B>Abstract</B></P> <P>Sugarcane ethanol is produced at large scale generating wastes that could be used for microalgae biomass production in a biorefinery strategy. In this study, forty microalgae strains were screened for growth in sugarcane vinasse at different concentrations. Two microalgae strains, <I>Micractinium</I> sp. Embrapa|LBA32 and <I>C. biconvexa</I> Embrapa|LBA40, presented vigorous growth in a light-dependent manner even in undiluted vinasse under non-axenic conditions. Microalgae strains presented higher biomass productivity in vinasse-based media compared to standard Bold&rsquo;s Basal Medium in cultures performed using 15L airlift flat plate photobioreactors. Chemical composition analyses showed that proteins and carbohydrates comprise the major fractions of algal biomass. Glucose was the main monosaccharide detected, ranging from 46% to 76% of the total carbohydrates content according to the strain and culture media used. This research highlights the potential of using residues derived from ethanol plants to cultivate microalgae for the production of energy and bioproducts.</P> <P><B>Highlights</B></P> <P> <UL> <LI> A biorefinery strategy for microalgae cultivation using sugarcane vinasse is proposed. </LI> <LI> Screening of 40 microalgae allowed the selection of highly productive strains. </LI> <LI> The feedstock obtained can be used to provide proteins, carbohydrates and energy. </LI> <LI> The culture supernatant can be recycled for sugarcane crops fertilization. </LI> </UL> </P>

발행연도

2017

발행기관

Elsevier

라이선스

publisher-specific-oa

ISSN

0960-8524

228

페이지

pp.133-140

주제어

Chlamydomonas; Micractinium; Biorefinery; Photobioreactor; Wastewater; CO2

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1 2023-12-11

논문; 2017-03-01

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