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How algae can be efficiently use for production of bioethanol? 


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Algae can be efficiently used for the production of bioethanol through various methods. One approach is enzymatic hydrolysis, where microalgae biomass is pretreated with acid or alkaline before being hydrolyzed by microorganisms such as Aspergillus niger or Saccharomyces cerevisiae . Another method involves cultivating specific strains of marine microalgae, such as Navicula sp. strain TAD, which contain carbohydrates that can be converted into glucose through hydrolysis and then fermented into bioethanol using Saccharomyces cerevisiae . Additionally, the production of bioethanol from microalgae can be achieved through pathways such as yeast fermentation, enzymatic hydrolysis, metabolic pathways in dark environments, and photo fermentation . To ensure efficient carbohydrate accumulation in microalgae, nutrient starvation/limitation, particularly manipulating nitrogen concentration in the medium, can be employed . Overall, algae's fast growth rate, carbon dioxide sequestration, and high carbohydrate content make them a promising feedstock for bioethanol production .

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Algae can be efficiently used for the production of bioethanol due to their fast growth rate, high carbohydrate content, and ability to sequester carbon dioxide.
Book ChapterDOI
01 Jan 2022
The paper discusses the potential of microalgae for bioethanol production, but does not provide specific information on how algae can be efficiently used for this purpose.
The paper discusses the use of Navicula sp. strain TAD, a type of marine microalgae, for bioethanol production. It describes the cultivation of the algae, determination of carbohydrate content, hydrolysis process, and fermentation to produce bioethanol.
The paper discusses the production of bioethanol from microalgae using enzymatic hydrolysis. It found that pretreating the microalgae with alkaline solution resulted in higher bioethanol yields compared to acid pretreatment. Optimization of fermentation conditions at pH 6.0 and 40°C also increased bioethanol concentration.

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