Drying of alga as a source of bioenergy feedstock and food supplement – A review

Bennamoun, Lyes; Afzal, Muhammad T.; Léonard, Angélique

doi:10.1016/j.rser.2015.04.196

Cited by 32 publications

(17 citation statements)

References 34 publications

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“…High temperatures are recognized to decrease the physical properties of microalgal cells, especially their ability to retain lipids, compromising the quality of the final product. On the other hand, low‐temperature methods, such as freeze drying, ensure greater stability regarding the lipids produced but can also disrupt cells and destabilize lipids during freezing …”

Section: Main Steps That Should Be Considered To Develop Cleaner Techmentioning

confidence: 99%

“…The choice of drying technique is related to energy costs, processing time, and the application of dry biomass. Although freeze drying is one of the main techniques for maintaining cell stability, an oven furnace is energetically more cost‐effective; thus, a spray dryer is often applied for this purpose, especially on an industrial scale …”

Section: Main Steps That Should Be Considered To Develop Cleaner Techmentioning

confidence: 99%

“…On the other hand, low-temperature methods, such as freeze drying, ensure greater stability regarding the lipids produced but can also disrupt cells and destabilize lipids during freezing. [43,71] The choice of drying technique is related to energy costs, processing time, and the application of dry biomass. Although freeze drying is one of the main techniques for maintaining cell stability, an oven furnace is energetically more cost-effective; thus, a spray dryer is often applied for this purpose, especially on an industrial scale.…”

Section: Dryingmentioning

confidence: 99%

“…Although freeze drying is one of the main techniques for maintaining cell stability, an oven furnace is energetically more cost-effective; thus, a spray dryer is often applied for this purpose, especially on an industrial scale. [71] Spray drying is one of the predominant techniques in the dairy industry and is characterized by a lower specific energy cost and higher productivity than other techniques such as freeze drying. [72] Spray dryers are used in industry particularly for aseptic pharmaceutical processing and feed processing, removing anywhere from a few kilograms of liquid per hour to well over 100 tons per hour.…”

Section: Dryingmentioning

confidence: 99%

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Microalgae and Clean Technologies: A Review

Souza

Hoeltz

Benitez

et al. 2019

CLEAN Soil Air Water

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The search for clean technologies needs to be continued to offer alternatives for achieving sustainable energy production and a sustainable economy. This concern is particularly related to the demands of both producing enough renewable energy to meet future needs and reducing greenhouse gas (GHG) emissions. Microalgae are recognized for several benefits they offer, and in recent years, the use of life cycle assessment (LCA) to evaluate the benefits resulting from microalgae cultivation, harvesting/dewatering, biomass drying, extraction, and byproduct development has stimulated research in this area. Considering the importance of microalgae and clean technologies and the increasing number of publications on these subjects, this review aims to perform bibliometric mapping of such studies from 2008 to 2018. Web of Science and Scopus databases are used to identify leading trends. Visualization of similarities viewer (VOSviewer) software is applied to analyze the interactions among keywords. The results of this study indicate an association of microalgae and clean technologies and demonstrate that LCA is one of the most common tools used for such analyses. Bibliometric mapping provides relevant data to reinforce this association and understand the main bottlenecks that must be overcome in this field for future progress to be made.

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Section: Main Steps That Should Be Considered To Develop Cleaner Techmentioning

confidence: 99%

Section: Main Steps That Should Be Considered To Develop Cleaner Techmentioning

confidence: 99%

Section: Dryingmentioning

confidence: 99%

Section: Dryingmentioning

confidence: 99%

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Microalgae and Clean Technologies: A Review

Souza

Hoeltz

Benitez

et al. 2019

CLEAN Soil Air Water

View full text Add to dashboard Cite

show abstract

“…Isso ocorre, por exemplo com a secagem por estufa, que por utilizar aquecimento por maior tempo, pode modificar as propriedades físicas e químicas da célula, principalmente a capacidade de reter lipídio, o que interfere na qualidade do produto final. Já o método de secagem por liofilização garante maior estabilidade quando relacionado aos lipídios produzidos, mas também pode romper as células e desestabilizar os lipídios durante o congelamento (BENNAMOUN et al, 2015.…”

Section: Introductionunclassified

Avaliação de diferentes métodos de secagem da biomassa de microalga Chlorella vulgaris

Fornasier¹,

Souza²,

Benitez³

et al. 2018

RJP

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Microalgas apresentam alta variedade biológica e podem ser aplicados em vários setores. A separação destes microrganismos é um desafio, uma vez que apresentam baixas densidades e são encontradas em suspensão no meio de cultura. Para otimizar o processo de secagem da biomassa das microalgas, o objetivo deste trabalho foi otimizar o uso do spray dryer em relação a secagem por estufa e por liofilização, bem como reconhecer o rendimento de biomassa, o teor lipídico, a composição dos ácidos graxos e a composição elementar (CHNS) para cada método testado. A secagem de biomassa de Chlorella vulgaris por spray dryer provou ser uma técnica alternativa mais rápida e eficiente para ser empregada em escala laboratorial.

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Agar yield from R-phycoerythrin extraction by-product of the red alga Gracilaria verrucosa

Mensi

2018

J Appl Phycol

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Drying of alga as a source of bioenergy feedstock and food supplement – A review

Cited by 32 publications

References 34 publications

Microalgae and Clean Technologies: A Review

Microalgae and Clean Technologies: A Review

Avaliação de diferentes métodos de secagem da biomassa de microalga Chlorella vulgaris

Agar yield from R-phycoerythrin extraction by-product of the red alga Gracilaria verrucosa

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