Comparison of different process strategies for bioethanol production from Eucheuma cottonii: An economic study

Tan, Inn Shi; Lee, Keat Teong

doi:10.1016/j.biortech.2015.08.008

Cited by 30 publications

(11 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Esta cantidad es mayor en comparación con la producción de aceite de soja (0,4 Mg/ha año), colza (0,68 Mg/ha año), palma aceitera (3,62 Mg/ha año) y Jatropha curcas (4,14 Mg/ha año) (Chisti, 2007;Lam & Lee, 2011). Entre los posibles productos de biorrefinería, el bioetanol a partir de biomasa no alimentaria podría usarse como combustible renovable en el sector automotriz (Tan & Lee, 2016).…”

Section: Tercera Y Cuarta Generación De Biocombustiblesunclassified

Retrospectiva y prospectiva del Desarrollo de las generaciones de biocombustibles

Espinoza

2021

CyT

View full text Add to dashboard Cite

Los biocombustibles se clasifican de acuerdo con el tipo de materia prima, en biocombustibles de primera, segunda, tercera y cuarta generación. Los biocombustibles de primera generación se producen a partir de cultivos, para transformarlo, mediante el proceso de fermentación. El debate con este tipo de biocombustibles se da debido a que la mayoría de éstos son producidos a partir de cultivos destinados al consumo humano. Los biocombustibles de segunda generación son obtenidos de materias primas no comestibles, como la madera, desechos orgánicos y cultivos específicos, eliminando el principal problema con los biocombustibles de primera generación, ofreciendo una mayor competitividad en el mercado en términos de su costo en relación con los combustibles fósiles existentes. Los biocombustibles de tercera generación usan microorganismos como materia prima, mientras que los biocombustibles de cuarta generación se centran en modificar genéticamente estos microorganismos para lograr una relación alta de hidrógeno a carbono junto con la creación de un extractor de dióxido de carbono artificial para eliminar o minimizar las emisiones de carbono. El objetivo de esta investigación es brindar un amplio panorama de las cuatro generaciones de biocombustibles líquidos, así como los actuales esfuerzos en el desarrollo en este campo. Este trabajo concluye que las metodologías que existen en la actualidad para producir biocombustibles de primera y segunda generación pronto no satisfarán la demanda de biocombustibles y en consecuencia se deben dirigir los recursos y esfuerzos hacia la tercera y cuarta generación, con especial énfasis al desarrollo de la ingeniería genética de las materias primas.

show abstract

Section: Tercera Y Cuarta Generación De Biocombustiblesunclassified

Retrospectiva y prospectiva del Desarrollo de las generaciones de biocombustibles

Espinoza

2021

CyT

View full text Add to dashboard Cite

show abstract

“…Therefore, biocatalysts and biomass are the two fundamental elements on which the analysis of primary articles in the literature is based here (Table 1 [9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42]). The selected articles inserted in Table 1 deal with (i) cellulases and other important carbohydrate-active enzymes; (ii) lipases, to manipulate feedstock oils for biodiesel production and (iii) other biocatalysts, including those commercially available.…”

Section: Biorefinerymentioning

confidence: 99%

Enzymatic Processes in Marine Biotechnology

Trincone

2017

Marine Drugs

View full text Add to dashboard Cite

In previous review articles the attention of the biocatalytically oriented scientific community towards the marine environment as a source of biocatalysts focused on the habitat-related properties of marine enzymes. Updates have already appeared in the literature, including marine examples of oxidoreductases, hydrolases, transferases, isomerases, ligases, and lyases ready for food and pharmaceutical applications. Here a new approach for searching the literature and presenting a more refined analysis is adopted with respect to previous surveys, centering the attention on the enzymatic process rather than on a single novel activity. Fields of applications are easily individuated: (i) the biorefinery value-chain, where the provision of biomass is one of the most important aspects, with aquaculture as the prominent sector; (ii) the food industry, where the interest in the marine domain is similarly developed to deal with the enzymatic procedures adopted in food manipulation; (iii) the selective and easy extraction/modification of structurally complex marine molecules, where enzymatic treatments are a recognized tool to improve efficiency and selectivity; and (iv) marine biomarkers and derived applications (bioremediation) in pollution monitoring are also included in that these studies could be of high significance for the appreciation of marine bioprocesses.

show abstract

“…Hydrolysate with a high sugar content does not always contain a higher yield of ethanol than hydrolysate with a low sugar because certain inhibitions of microorganism growth in fermentation can occur. Inhibitory compounds are released during the pretreatment processes [3], [5], [7]. Sunwoo et al indicated that reducing sugar compounds with extended treatment periods have been converted to inhibitory compounds [9] [6].…”

Section: Introductionmentioning

confidence: 99%

Desalination Technique on Seaweeds Hydrolysate Eucheuma Cottonii for Bioethanol Production

Fakhrudin¹,

Setyaningsih²,

Rahayuningsih³

2021

Int. J. Eng. Scie. and Inform. Technology.

View full text Add to dashboard Cite

The dissolved salts on Eucheuma cottonii hydrolysate interfere the growth of S. cerevisiae in the fermentation as it is considered as inhibitors. These salts are derived from biomass and formed from the chemicals used for hydrolysis processes such as H2SO4 and CaOH2. Ions and cations of the salts are potential as inhibitors such as Na+, Cl-, NH4+, SO42-. Osmotic pressure is raised due to the presence of salt. The efforts had been made to reduce salinity level through electrodialysis. The objective of this study was to eliminate dissolved salts in the hydrolysate in order to optimize the process of fermentation and increase ethanol yield. The results showed that the process of desalination by electrodialysis was able to reduce the salinity of 20% on the voltage of 5 V for 30 minutes; the voltage 9 V for 15 minutes; the voltage 12 V for 30 minutes. The lowest decline of SO42- occurred at treatment of 12 V for 45 minutes. The content of sulfate in the treatment decreased to 2.97 g/l or 46.22%. The more sulfate is reduced through the electrodialysis process, the better the fermentation process is carried out. Desalination treatment at a voltage of 5 V for 30 minutes had been the best treatment because it produced the highest ethanol yield of 2.06%. All the voltage treatments and the length of time on the electrodialysis process had a significant influence on the levels of ethanol yield. The process of desalination by electrodialysis was able to reduce the levels of dissolved salts, then it had a significant effect on ethanol yield.

show abstract

Comparison of different process strategies for bioethanol production from Eucheuma cottonii: An economic study

Cited by 30 publications

References 33 publications

Retrospectiva y prospectiva del Desarrollo de las generaciones de biocombustibles

Retrospectiva y prospectiva del Desarrollo de las generaciones de biocombustibles

Enzymatic Processes in Marine Biotechnology

Desalination Technique on Seaweeds Hydrolysate Eucheuma Cottonii for Bioethanol Production

Contact Info

Product

Resources

About