title: Lipase-catalyzed selective synthesis of monolauroyl maltose using continuous stirred tank reactor.
abstract: Monolauroyl maltose was synthesized by an immobilized lipase that catalyzed condensation of maltose and lauric acid in acetone using a batch reactor or a continuous stirred tank reactor. Mono- and di-lauroyl maltoses were identified by FT-IR, (1)H NMR, (13)C NMR and MS. Monolauroyl maltose was selectively synthesized in a continuous stirred tank reactor and no diester was detected. The highest concentration of monolauroyl maltose at 28 mmol/l was obtained in 250 ml acetone when maltose was added at 4 g/d and the molar ratio of lauric acid to maltose was fixed at 4:1 at a flow rate of 0.15 ml/min for both influx and effluent without supplement of fresh molecular sieve.
authors.affiliation: State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, China.
authors.forename: Qiaoyu
authors.initials: Q
authors.lastname: Liu
authors.forename: Chengsheng
authors.initials: C
authors.lastname: Jia
authors.forename: Jin M
authors.initials: JM
authors.lastname: Kim
authors.forename: Pingping
authors.initials: P
authors.lastname: Jiang
authors.forename: Xiaoming
authors.initials: X
authors.lastname: Zhang
authors.forename: Biao
authors.initials: B
authors.lastname: Feng
authors.forename: Shiying
authors.initials: S
authors.lastname: Xu
mesh_terms: D000096:Acetone / Q000378:metabolism; D019149:Bioreactors; D002175:Candida / Q000201:enzymology*; D002384:Catalysis; D004800:Enzymes, Immobilized / Q000378:metabolism*; D007218:Industrial Microbiology / Q000379:methods*; D007700:Kinetics; D007848:Laurates / Q000378:metabolism*; D007850:Lauric Acids / Q000378:metabolism; D008049:Lipase / Q000378:metabolism*; D008320:Maltose / Q000096:biosynthesis* / Q000302:isolation & purification
chemical_list: D004800:Enzymes, Immobilized; D007848:Laurates; D007850:Lauric Acids; C030358:lauric acid; D000096:Acetone; D008320:Maltose; D008049:Lipase