Cereal crops for biogas production: A review of possible impact of elevated CO2

A. Senghor, R.M.N. Dioh, C. Müller and I. Youm

Renewable and Sustainable Energy Reviews, 2017, vol. 71, issue C, 548-554

Abstract: The aim of this review is to show through revision literature data concerning the effect of CO2 enrichment on cereal crops, the impact of elevated CO2 on biogas production from cereal crops and the future of using cereal crops us substrate. This is important because atmospheric CO2 concentration leads to rise and nowadays cereal crops are one of the most used substrates for biogas production and this study will bring a response on the future of biogas production from cereal crops. Studies show that elevated CO2 enhanced biomass yield by +10% to +28% (wheat), +13% to +56% (rice), +8% to 30% (sorghum), +14% (maize and barley). On the other hand, key element which determine the quality of the plant and which are negatively affect by elevated CO2 are the basic elements for a good quality of quantity of biogas such as (crude protein, lipids, carbohydrates, micro and macro-element). Proteins content decreases from −2% to −13% for wheat, −8% to −10% for rice, −12% to −15% for barley, −4.6% for maize and 0% to −6% for sorghum. All micro-elements decrease for rice (−30% to −60%), barley (−10% to −14%) and maize (−4% to −10%) and respond differently for wheat (−18.5% to +1.5%) and sorghum (−3% to +34%). Same results were observed for all macro-elements except barley which decreased (−6% to −19%). Based on these result we can argue that biogas produced by cereal crops will be menaced in the future and is condemned to decrease and methane yield may decrease by −2% to −3% for wheat, −8% to −10% for rice, −12% to −15% for barley, −4% to −11% for maize and −4% or no change for sorghum.

Keywords: Anaerobic digestion; Biogas; Energy crops; Elevated CO2 (search for similar items in EconPapers)
Date: 2017
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S1364032116311364
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:rensus:v:71:y:2017:i:c:p:548-554

Ordering information: This journal article can be ordered from
http://www.elsevier.com/wps/find/journaldescription.cws_home/600126/bibliographic
http://www.elsevier. ... 600126/bibliographic

DOI: 10.1016/j.rser.2016.12.082

Access Statistics for this article

Renewable and Sustainable Energy Reviews is currently edited by L. Kazmerski

More articles in Renewable and Sustainable Energy Reviews from Elsevier
Bibliographic data for series maintained by Catherine Liu ().