Hydrolysis of Chlorella biomass for fermentable sugars in the presence of HCl and MgCl2

Zhou, Na; Zhang, Yimin; Wu, Xiaobin; Gong, Xiaoyi; Wang, Qinhong

doi:10.1016/j.biortech.2011.08.051

Cited by 78 publications

(24 citation statements)

References 18 publications

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“…In this manner, microalgae hemicellulose content was low and not affected by any of the thermochemical pretreatments. This result is in agreement with Zhou et al (2011) who reported hemicelluloses and cellulose content of 10.2% and 35.3% of dry Chlorella biomass, respectively.…”

Section: Carbohydrates Solubilisationsupporting

confidence: 94%

Enhancing methane production of Chlorella vulgaris via thermochemical pretreatments

Méndez

Mahdy

Timmers

et al. 2013

Bioresource Technology

142

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Section: Carbohydrates Solubilisationsupporting

confidence: 94%

Enhancing methane production of Chlorella vulgaris via thermochemical pretreatments

Méndez

Mahdy

Timmers

et al. 2013

Bioresource Technology

142

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“…With the exception of some microalgal species, which have high initial carbohydrates content, the majority of microalgae have relative low carbohydrates content. Consequently, microalgae have not much attracted the interest as substrate for bioethanol production [5][6][7][8][9][10][11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Bioethanol Production by Carbohydrate-Enriched Biomass of Arthrospira (Spirulina) platensis

et al. 2013

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Abstract:In the present study the potential of bioethanol production using carbohydrate-enriched biomass of the cyanobacterium Arthrospira platensis was studied. For the saccharification of the carbohydrate-enriched biomass, four acids (H 2 SO 4 , HNO 3 , HCl and H 3 PO 4 ) were investigated. Each acid were used at four concentrations, 2.5 N, 1 N, 0.5 N and 0.25 N, and for each acid concentration the saccharification was conducted under four temperatures (40 °C, 60 °C, 80 °C and 100 °C). Higher acid concentrations gave in general higher reducing sugars (RS) yields (%, g RS /g Total sugars ) with higher rates, while the increase in temperature lead to higher rates at lower acid concentration. The hydrolysates then were used as substrate for ethanolic fermentation by a salt stress-adapted Saccharomyces cerevisiae strain. The bioethanol yield (%, g EtOH /g Biomass ) was significantly affected by the acid concentration used for the saccharification of the carbohydrates. The highest bioethanol yields of 16.32% ± 0.90% (g EtOH /g Biomass ) and 16.27% ± 0.97% (g EtOH /g Biomass ) were obtained in hydrolysates produced with HNO 3 0.5 N and H 2 SO 4 0.5 N, respectively.

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“…The low‐concentration acid approach investigated by Zhou et al was mainly a two‐stage system, to guarantee the discharge of structurally varied sugars such as hemicelluloses and cellulose. The inclusion of 2.5 % MgCl 2 in 2 % HCl for the hydrolysis of biomass caused a recovery of more than 83 % of total sugars, containing mostly glucose, xylose, and arabinose . This was a synergistic outcome because the effect was more than the entire amount of the sugar discharged separately by each of the constituents.…”

Section: Biofuel Production Processesmentioning

confidence: 99%

Biochemical Conversion of Microalgae Biomass into Biofuel

Hossain

2019

Chem Eng & Technol

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Biofuel production via microalgae is a promising and sustainable alternative to replace the typical fossil fuel that is the main contributor to the global warming. However, for a cost‐effective biofuel production, further advanced research is still needed for large‐scale operation. This article is a tutorial review on conversion processes of microalgae into biofuel, with emphasis on biochemical conversion. The following topics are discussed: (i) microalgae biomass and its composition, (ii) thermochemical conversion, (iii) chemical conversion, and (iv) biochemical conversion. In addition, various aspects of anaerobic digestion, digester designs, and effects of operating conditions on the production of methane, bioethanol, and biohydrogen are discussed. The general kinetics of biomass conversion into biofuel is presented. This study suggests, if that biomass contains less than 50 % moisture, then it is recommended to use the direct combustion method; otherwise, biochemical conversion is the most suitable process to biofuel production.

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Hydrolysis of Chlorella biomass for fermentable sugars in the presence of HCl and MgCl2

Cited by 78 publications

References 18 publications

Enhancing methane production of Chlorella vulgaris via thermochemical pretreatments

Enhancing methane production of Chlorella vulgaris via thermochemical pretreatments

Bioethanol Production by Carbohydrate-Enriched Biomass of Arthrospira (Spirulina) platensis

Biochemical Conversion of Microalgae Biomass into Biofuel

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