title: Strategy for dual production of bioethanol and d-psicose as value-added products from cruciferous vegetable residue.
abstract: In this study, fermentable sugars and d-fructose were produced from cruciferous vegetable residue by enzymatic method without the use of either chemical or mechanical mechanisms. Production of d-psicose was effectively converted from hydrolyzed d-fructose in cabbage residue by d-psicose-3 epimerase; the presence of the borate increased the conversion rate by about two fold, and ethanol production yield was 85.7% of the theoretical yield. Both products, bioethanol and d-psicose, were successfully separated and purified by pervaporation and cation exchange chromatography, and their recovery yields were approximately 87% and 86.2%, respectively.
authors: Department of Bioenergy Science and Technology, Chonnam National University, Gwangju 500-757, Republic of Korea.
authors: Younho
authors: Y
authors: Song
authors: Bio-energy Research Center, Chonnam National University, Gwangju 500-757, Republic of Korea.
authors: Quynh Anh
authors: QA
authors: Nguyen
authors: Bio-energy Research Center, Chonnam National University, Gwangju 500-757, Republic of Korea.
authors: Seung Gon
authors: SG
authors: Wi
authors: College of Life Sciences, Qingdao Agricultural University, Qingdao 266109, China.
authors: Jianming
authors: J
authors: Yang
authors: Department of Bioenergy Science and Technology, Chonnam National University, Gwangju 500-757, Republic of Korea; Bio-energy Research Center, Chonnam National University, Gwangju 500-757, Republic of Korea. Electronic address: baehj@chonnam.ac.kr.
authors: Hyeun-Jong
authors: HJ
authors: Bae
mesh_terms: D056804:Biofuels; D001881:Borates; D000431:Ethanol / Q000737:chemistry*; D005632:Fructose / Q000378:metabolism*; D019998:Racemases and Epimerases / Q000737:chemistry; D014675:Vegetables / Q000737:chemistry*
chemical_list: D056804:Biofuels; D001881:Borates; C003243:psicose; D005632:Fructose; D000431:Ethanol; D019998:Racemases and Epimerases
keywords: Bioethanol production; Cruciferous vegetables residue; Pervaporation; d-psicose