title: An approach for prominent enhancement of the quality of konjac flour: dimethyl sulfoxide as medium.
abstract: In this paper, an approach to improve several konjac flour (KF) qualities by dimethyl sulfoxide (DMSO) addition using various concentrations at different temperature levels was proposed. Also, various properties of native and refined KF, including transparency, chemical composition and rheological properties have been investigated. The results showed that the KF refined by 75% DMSO achieved 27.7% improvement in transparency, 99.7% removal of starch, 99.4% removal of soluble sugar, and 98.2% removal of protein as well as more satisfactory viscosity stability. In addition, the morphology structure of refined KF showed a significant difference compared with the native one as observed using the SEM, which is promising for further industrial application. Furthermore, the rheological properties of both native and refined konjac sols were studied and the results showed that DMSO refinement is an effective and alternative approach to improve the qualities of KF in many aspects.
authors.affiliation: College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; Key Laboratory of Environment Correlative Dietology (Huazhong Agricultural University), Ministry of Education, China.
authors.forename: Ting
authors.initials: T
authors.lastname: Ye
authors.forename: Ling
authors.initials: L
authors.lastname: Wang
authors.forename: Wei
authors.initials: W
authors.lastname: Xu
authors.forename: Jinjin
authors.initials: J
authors.lastname: Liu
authors.forename: Yuntao
authors.initials: Y
authors.lastname: Wang
authors.forename: Kunkun
authors.initials: K
authors.lastname: Zhu
authors.forename: Sujuan
authors.initials: S
authors.lastname: Wang
authors.forename: Bin
authors.initials: B
authors.lastname: Li
authors.forename: Chao
authors.initials: C
authors.lastname: Wang
mesh_terms: D031056:Amorphophallus / Q000737:chemistry*; D004121:Dimethyl Sulfoxide / Q000737:chemistry*; D004187:Disaccharides / Q000302:isolation & purification; D005433:Flour / Q000032:analysis*; D005524:Food Technology; D044367:Phase Transition; D010940:Plant Proteins / Q000302:isolation & purification*; D012212:Rheology; D013213:Starch / Q000302:isolation & purification; D013696:Temperature; D014783:Viscosity
chemical_list: D004187:Disaccharides; D010940:Plant Proteins; D013213:Starch; D004121:Dimethyl Sulfoxide
keywords: Dimethyl sulfoxide (DMSO); Konjac flour (KF); Morphology; Rheology; Transparency; Viscosity