caa a22 4500 46322776X CHVBK 20180405153232.0 cr unu---uuuuu 170326e20071201xx s 000 0 eng 10.1007/s10853-007-2012-0 doi (NATIONALLICENCE)springer-10.1007/s10853-007-2012-0 Production of lactic acid from glucose by alkaline hydrothermal reaction [Elektronische Daten] [Xiuyi Yan, Fangming Jin, Kazuyuki Tohji, Takehiko Moriya, Heiji Enomoto] In this paper, alkaline hydrothermal conversion of glucose, a model compound of carbohydrate biomass, into lactic acid was discussed. Results showed that both NaOH and Ca(OH)2, can promote the formation of lactic acid in a hydrothermal reaction of glucose. In the case of the addition of NaOH, lactic acid was obtained with a yield of 27% based on a starting carbon mass of glucose at 300°C for 60s with a NaOH concentration of 2.5M. In the case of the addition of Ca(OH)2, the highest yield of lactic acid is 20%, which occurred at 300°C for 60s with a Ca(OH)2 concentration of 0.32M. The formation mechanisms of lactic acid from glucose were also discussed according to intermediate products identified, to examine if lactic acid is also formed via the aldose having one and two carbon atoms besides via the aldose having three carbon atoms. Result showed that lactic acid may be generated via formaldehyde, glycolaldehyde besides via the aldose having three carbon atoms in hydrothermal reaction which all formed by the reverse aldol condensation of hexoses. Springer Science+Business Media, LLC, 2007 Yan Xiuyi Graduate School of Environmental Studies, Tohoku University, 980-8579, Sendai, Japan aut Jin Fangming Graduate School of Environmental Studies, Tohoku University, 980-8579, Sendai, Japan aut Tohji Kazuyuki Graduate School of Environmental Studies, Tohoku University, 980-8579, Sendai, Japan aut Moriya Takehiko Research and Development Center, Tohoku Electric Power Co., Inc., 981-0952, Sendai, Japan aut Enomoto Heiji Graduate School of Environmental Studies, Tohoku University, 980-8579, Sendai, Japan aut Journal of Materials Science Springer US; http://www.springer-ny.com 42/24(2007-12-01), 9995-9999 0022-2461 42:24<9995 2007 42 10853 https://doi.org/10.1007/s10853-007-2012-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-007-2012-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Yan Xiuyi Graduate School of Environmental Studies, Tohoku University, 980-8579, Sendai, Japan aut NATIONALLICENCE 700 1- Jin Fangming Graduate School of Environmental Studies, Tohoku University, 980-8579, Sendai, Japan aut NATIONALLICENCE 700 1- Tohji Kazuyuki Graduate School of Environmental Studies, Tohoku University, 980-8579, Sendai, Japan aut NATIONALLICENCE 700 1- Moriya Takehiko Research and Development Center, Tohoku Electric Power Co., Inc., 981-0952, Sendai, Japan aut NATIONALLICENCE 700 1- Enomoto Heiji Graduate School of Environmental Studies, Tohoku University, 980-8579, Sendai, Japan aut NATIONALLICENCE 773 0- Journal of Materials Science Springer US; http://www.springer-ny.com 42/24(2007-12-01), 9995-9999 0022-2461 42:24<9995 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer