Enzymatic hydrolysis and fermentation of seaweed solid wastes for bioethanol production: An optimization study

Tan, Inn Shi; Lee, Keat Teong

doi:10.1016/j.energy.2014.04.080

Cited by 119 publications

(55 citation statements)

References 47 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The use of edible crops to produce the so-called first generation bioethanol has rightly been greatly criticized as an unsustainable technique, which poses the issues of both competition with food sources and disruption in the food-to-population ratio [44]. These concerns have driven the development of second-generation bioethanol that is derived from lignocellulosic wastes.…”

Section: Bioethanol Productionmentioning

confidence: 99%

Combined Biogas and Bioethanol Production: Opportunities and Challenges for Industrial Application

Cesaro

Belgıorno

2015

Energies

View full text Add to dashboard Cite

Abstract:In the last decades the increasing energy requirements along with the need to face the consequences of climate change have driven the search for renewable energy sources, in order to replace as much as possible the use of fossil fuels. In this context biomass has generated great interest as it can be converted into energy via several routes, including fermentation and anaerobic digestion. The former is the most common option to produce ethanol, which has been recognized as one of the leading candidates to substitute a large fraction of the liquid fuels produced from oil. As the economic competitiveness of bioethanol fermentation processes has to be enhanced in order to promote its wider implementation, the most recent trends are directed towards the use of fermentation by-products within anaerobic digestion. The integration of both fermentation and anaerobic digestion, in a biorefinery concept, would allow the production of ethanol along with that of biogas, which can be used to produce heat and electricity, thus improving the overall energy balance. This work aims at reviewing the main studies on the combination of both bioethanol and biogas production processes, in order to highlight the strength and weakness of the integrated treatment for industrial application.

show abstract

Section: Bioethanol Productionmentioning

confidence: 99%

Combined Biogas and Bioethanol Production: Opportunities and Challenges for Industrial Application

Cesaro

Belgıorno

2015

Energies

View full text Add to dashboard Cite

show abstract

“…The SSF process was conducted following methods of Tan & Lee (2014), that conv ert carbohydrate in the waste into ethanol using T. reesei and S. cerevisiae (1:1) in different concentrations. Preparation of T. reesei and S. cerevisiae cultures was performed using PDB (Potato Dextrose Broth) medium at 35 °C at 120 rpm for 48 hours using shaking incubator.…”

Section: Saccharification and Fermentationmentioning

confidence: 99%

Bioethanol Production From Seaweed Processing Waste by Simultaneous Saccharification and Fermentation (Ssf)

Hakim

Chasanah²,

Uju³

et al. 2017

Squalen Bull. Marine Fisheries Postharvest Biotech.

View full text Add to dashboard Cite

Seaweed processing waste has been used for bioethanol production through simultaneous saccharification and fermentation (SSF). SSF is commonly used for bioethanol production to shorten the process and to increase the yield of ethanol produced by Trichoderma reesei and Saccharomyces cerevisiae. The aim of this research was to obtain the best concentration of T. reesei and S. cerevisiae to produce bioethanol by SSF. The concentration of T. reesei and S. cerevisiae used was 0 (control), 5, 10, 15 and 20% (v/v (control, 5, 10, 15 and 20%) yielded significant effect (p<0.05) on the total reducing sugars and ethanol produced. The Duncan Multiple Range Test (DMRT) showed that the treatment 10% of T. reesei and S. cerevisiae concentration in the seaweed processing waste treated with hot water was the best treatment producing highest yield of ethanol.

show abstract

“…The efficiency of substrate utilization and the yield of ethanol production were calculated. As an index to evaluate the conversion efficiency from sugar to ethanol in the fermentation, the overall ethanol yield was defined as follows (Kumar et al, 2013;Tan & Lee, 2014): where, 0.51 indicates the theoretical ethanol yield (0.51 g-ethanol/g-sugar). Moreover, to evaluate sugar consumption and conversion efficiency, we used sugar uptake ratio and ethanol yield.…”

Section: Fermentationmentioning

confidence: 99%

“…Sugar concentration was measured by reacting the saccharification product with 3,5-dinitrosalycilic acid (DNS) and read at 575 nm absorbance. The rate of sacchari f icat ion process and the yiel d of saccharification were calculated as follows (Kumar et al, 2013;Tan & Lee, 2014):…”

Section: Enzymatic Saccharificationmentioning

confidence: 99%

Ethanolic Fermentation Efficiency of Seaweed Solid Waste hydrolysates by Saccharomyces cerevisiae

Martosuyono

Munifah

Ningrum

2016

Squalen Bull. Marine Fisheries Postharvest Biotech.

View full text Add to dashboard Cite

The objective of this research was to determine the saccharification and the fermentation efficiency of seaweed solid waste hydrolysate by Saccharomyces cerevisiae (Accession number 3012.254) in anaerobic condition. The optimum saccharification yield of acid pretreated waste (40.93±1.72)% was obtained after 48 hours with saccharification rate of (0.51±0.02) g/l.h. Higher yield was shown by NaOH pretreated waste (67.29±1.24)% after 24 hours with saccharification rate of (0.81±0.06) g/l.h. The fermentation of enzymatic hydrolysates of acid and alkali pretreated samples by S. cerevisiae produced a maximum of 7.52±0.24 g/l and 14.5±0.54 g/l ethanol respectively after 72 hours fermentation. Maximum ethanol yield was 0.31±0.03 g/g and 0.40±0.02 g/g sugar respectively for acid and alkali pretreated samples. The ethanol yields showed that alkali pretreated sample produces higher conversion substrate ratio (80% of theoretical yield) compared to acid pretreated sample (62% of theoretical yield).

show abstract

Enzymatic hydrolysis and fermentation of seaweed solid wastes for bioethanol production: An optimization study

Cited by 119 publications

References 47 publications

Combined Biogas and Bioethanol Production: Opportunities and Challenges for Industrial Application

Combined Biogas and Bioethanol Production: Opportunities and Challenges for Industrial Application

Bioethanol Production From Seaweed Processing Waste by Simultaneous Saccharification and Fermentation (Ssf)

Ethanolic Fermentation Efficiency of Seaweed Solid Waste hydrolysates by Saccharomyces cerevisiae

Contact Info

Product

Resources

About