title: Hydrogen production from sugar industry wastes using single-stage photofermentation.
abstract: Beet molasses and black strap are two major waste streams of the sugar industry. They both contain high amounts of sucrose, making them suitable substrates for biological hydrogen production. Photofermentation, usually used to convert organic acids to hydrogen, has the potential capacity to effectively use a variety of feed stocks, including sugars. A comparative study on photofermentative biohydrogen production from beet molasses, black strap, and sucrose was conducted. With yields of 10.5 mol H(2)/mol sucrose for beet molasses (1g/l sugar); 8 mol H(2)/mol sucrose for black strap (1g/l sugar) and 14 mol H(2)/mol sucrose for pure sucrose, a one stage photofermentation system appears promising as an alternative to two-stage systems given the potential savings in energy input and operational costs.
authors.affiliation: Département de Microbiologie et Immunologie, Université de Montréal, CP 6128 Succursale Centre-ville, Montréal, Québec, Canada.
authors.forename: Tugba
authors.initials: T
authors.lastname: Keskin
authors.forename: Patrick C
authors.initials: PC
authors.lastname: Hallenbeck
mesh_terms: D027461:Beta vulgaris / Q000737:chemistry / Q000187:drug effects; D002241:Carbohydrates / Q000737:chemistry*; D005285:Fermentation / Q000187:drug effects / Q000502:physiology*; D006859:Hydrogen / Q000378:metabolism*; D006863:Hydrogen-Ion Concentration / Q000187:drug effects; D007220:Industrial Waste; D007700:Kinetics; D008965:Molasses / Q000032:analysis; D018462:Photobiology / Q000379:methods*; D013395:Sucrose / Q000494:pharmacology; D013997:Time Factors
chemical_list: D002241:Carbohydrates; D007220:Industrial Waste; D013395:Sucrose; D006859:Hydrogen