Author details

configurations and process parameters, metabolic pathways, and microbial ecology of bioH2- and bioCH4-producing reactors. The pretreatment/conditioning steps applied to enhance the valorization of AB/TV were also reviewed. It has been suggested that the HLac-type fermentation coupled to DF and AD can boost the development of cascading design in multi-stage AD processes. This multiproduct approach using AB/TV as resources in the biorefinery scheme may facilitate

This work was financially supported by Consejo Nacional de Ciencia y Tecnología (CONACYT) through the Project-PN-2015-2101-1024. Osuna-Laveaga

D.R. acknowledges CONACYT for the Ph.D. scholarship: 267499.

The authors declare no conflict of interest.

sustainability to the tequila industry.

New Advances on Fermentation Processes

Acknowledgements

Conflict of interest

HAc acetic acid

bioH2 biohydrogen YH2 biohydrogen yield

bioCH4 biomethane YCH4 biomethane yield HBu butyric acid

HLac lactic acid

122

Acronyms and abbreviations

AAB acetic acid bacteria AB agave bagasse

AD anaerobic digestion

AHP alkaline hydrogen peroxide

AnSBR anaerobic sequencing batch reactor AMPTS II automatic methane potential test system

HPB biohydrogen-producing bacteria

COD chemical oxygen demand CSTR continuously stirred tank reactor

HRT hydraulic retention time HPB hydrogen-producing bacteria HMF hydroxymethylfurfural

NW nixtamalization wastewater ORP oxidation-reduction potential

SRB sulfate-reducing bacteria

DF dark fermentation FPU filter paper units FBR fixed bed reactor HFor formic acid

LAB lactic acid bacteria

OLR organic loading rate PBR packed bed reactor HPr propionic acid

Octavio García-Depraect, Daryl Rafael Osuna-Laveaga and Elizabeth León-Becerril\* Department of Environmental Technology, Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, A.C., Guadalajara, Jalisco, México

\*Address all correspondence to: eleon@ciatej.mx

© 2019 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/ by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
