title: Short communication: possible mechanism for inhibiting the formation of polymers originated from 5-hydroxymethyl-2-furaldehyde by sulfite groups in the dairy thermal process.
abstract: 5-Hydroxymethyl-2-furaldehyde can undergo polymerization to form high-molecular weight molecules via the Maillard reaction during dairy thermal treatment. In this study, the effect of sulfite group on polymer formation, especially in inhibiting the formation of high-molecular weight polymers has been described. Results showed that the sulfite group significantly inhibited the increase of polymer molecular weight via prevention of the polymerization of 5-hydroxymethyl-2-furaldehyde. The formation of an intermolecular dimer based on the glucose molecule through Schiff base cyclization can lead to a competitive reaction with 1,2-enolization to reduce 5-hydroxymethyl-2-furaldehyde formation, which might be another factor in reducing the formation of high-molecular weight polymers.
authors.affiliation: College of Light Industry and Food Sciences, South China University of Technology, Guangzhou 510640, China.
authors.forename: Yong-Guang
authors.initials: YG
authors.lastname: Guan
authors.forename: Si-Ming
authors.initials: SM
authors.lastname: Zhu
authors.forename: Shu-Juan
authors.initials: SJ
authors.lastname: Yu
authors.forename: Xian-Bing
authors.initials: XB
authors.lastname: Xu
authors.forename: Li-Cai
authors.initials: LC
authors.lastname: Zhu
mesh_terms: D000818:Animals; D005524:Food Technology / Q000379:methods*; D005662:Furaldehyde / Q000031:analogs & derivatives* / Q000378:metabolism; D006358:Hot Temperature; D009682:Magnetic Resonance Spectroscopy; D015416:Maillard Reaction; D008892:Milk / Q000378:metabolism; D008970:Molecular Weight; D011108:Polymers / Q000737:chemistry / Q000378:metabolism*; D012545:Schiff Bases / Q000378:metabolism; D021241:Spectrometry, Mass, Electrospray Ionization; D013447:Sulfites / Q000378:metabolism*
chemical_list: D011108:Polymers; D012545:Schiff Bases; D013447:Sulfites; C008046:5-hydroxymethylfurfural; D005662:Furaldehyde