alexa New Perspectives on Bioethanol Production | Open Access Journals
ISSN: 2471-2698
Pharmaceutical Analytical Chemistry
Like us on:
Make the best use of Scientific Research and information from our 700+ peer reviewed, Open Access Journals that operates with the help of 50,000+ Editorial Board Members and esteemed reviewers and 1000+ Scientific associations in Medical, Clinical, Pharmaceutical, Engineering, Technology and Management Fields.
Meet Inspiring Speakers and Experts at our 3000+ Global Conferenceseries Events with over 600+ Conferences, 1200+ Symposiums and 1200+ Workshops on
Medical, Pharma, Engineering, Science, Technology and Business

New Perspectives on Bioethanol Production

Maceiras R*

Defense University Center, Escuela Naval Militar, Plaza de España 2, 36920 Marín, Spain

*Corresponding Author:
Maceiras R
Defense University Center, Escuela Naval Militar
Plaza de España 2, 36920 Marín, Spain
Tel: +34986804933
E-mail: [email protected]

Received Date: October 03, 2016; Accepted Date: October 10, 2016; Published Date: October 12, 2016

Citation: Maceiras R (2016) New Perspectives on Bioethanol Production. Pharm Anal Chem Open Access 2:e108. doi: 10.4172/2471-2698.1000e108

Copyright: © 2016 Maceiras R. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Visit for more related articles at Pharmaceutical Analytical Chemistry

Bioethanol of first generation can be produced by the fermentation of plants containing sugar and starch. Whereas second generation bioethanol can be produced through hydrolysis and subsequent fermentation of cellulose [1]. Then, this second type do not compete directly with food crops for land use since it can be obtained from a wider range of feedstocks (agricultural residues, woody raw materials or energy crops) [2,3]. However, currently wheat is still the main crop for bioethanol production. Figure 1 shows global ethanol production by different countries from 2007 to 2015. It can be observed that the values peaked in 2015 after a dip in 2011 and 2012. Moreover, it indicates that the countries with the highest production and USA and Brazil.

pharmaceutical-analytical-chemistry-Global-bioethanol-bioethanol

Figure 1: Global bioethanol production [3].

The bioethanol production process depends on the feedstock, going from the simple conversion of sugars by fermentation, to the multi-stage conversion of lignocellulosic biomass into ethanol [4]. Moreover, some thermochemical processes have been analyzed to produce bio-ethanol: gasification followed either by fermentation [5], or by a catalyzed reaction [6].

The technology for cellulosic bioethanol production relies a pretreatment, chemical or enzymatic hydrolysis, fermentation and product separation or distillation. The main problem of this process is the pretreatment of raw material due to the complexity of lignocellulosic structure (cellulose, hemicellulose and lignin) [4]. Many researches have developed different physical, physical-chemical, chemical and biological processes for the pretreatment of lignocellulosic biomass [4]. However, there is no evidence about the best route in obtaining cellulosic bioethanol. Other problem related to cellulosic bioethanol production is the requirement of advanced technologies and facilities to aid the conversion process. For that reason, new raw materials have been investigated to produce bioethanol. One of them are marine organisms, such as algae.

Thus, the third generation bioethanol is focused on the use of algae as raw material. Algae can be considered as a suitable feedstock for bioethanol production due to the ease of cultivation and abundance [7]. The production of bioethanol from algae involves some previous steps before hydrolysis and fermentation which involve a drying process with the aim to preserve the crude extract and prevent the algae from gelling [8] and a size reduction to increase surface area.

In recent years there are numerous investigations [9] that have been made for the development of bioethanol production by fermentation of polysaccharides of macroalgae, especially from brown algae. However, the development of an efficient, advanced and significant bioethanol production process from algae still requires a detailed study of optimization in the steps of hydrolysis and fermentation. Third bioethanol could be an attractive alternative for renewable energy. However, there are still some challenges hampering its production and consequent commercialization.

References

Select your language of interest to view the total content in your interested language
Post your comment

Share This Article

Recommended Conferences

Article Usage

  • Total views: 333
  • [From(publication date):
    February-2017 - Jun 26, 2017]
  • Breakdown by view type
  • HTML page views : 279
  • PDF downloads :54
 

Post your comment

captcha   Reload  Can't read the image? click here to refresh

Peer Reviewed Journals
 
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2017-18
 
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

 
© 2008-2017 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version
adwords