title: Analysis of the Maillard reaction in human hair using Fourier transform infrared spectroscopic imaging and a focal-plane array detector.
abstract: The Maillard reaction has been well researched and used in the food industry and the fields of environmental science and organic chemistry. Here, we induced the Maillard reaction inside human hair and analyzed its effects by using Fourier transform infrared spectroscopy with a focal-plane array (FTIR-FPA) detector. We used arginine (A), glycine (G), and D-xylose (X) to generate the Maillard reaction by dissolving them in purified water and heating it to 150 °C. This label-free process generated a complex compound (named AGX after its ingredients) with a monomer structure, which was determined by using nuclear magnetic resonance (NMR) and FTIR-FPA. This compound was stable in hair and substantially increased its tensile strength. To our knowledge, we are the first to report the formation of this monomer in human hair, and our study provides insights into a new method that could be used to improve the condition of damaged or aging hair.
authors.affiliation: Amore Pacific Corporation Research and Development Center, Yongin-si, Gyeonggi-do, 446-729, Republic of Korea.
authors.forename: In-Keun
authors.initials: IK
authors.lastname: Jung
authors.affiliation: Amore Pacific Corporation Research and Development Center, Yongin-si, Gyeonggi-do, 446-729, Republic of Korea.
authors.forename: Sang-Chul
authors.initials: SC
authors.lastname: Park
authors.affiliation: Amore Pacific Corporation Research and Development Center, Yongin-si, Gyeonggi-do, 446-729, Republic of Korea.
authors.forename: Sung-Ah
authors.initials: SA
authors.lastname: Bin
authors.affiliation: Bruker Optics Korea, Seongnam-si, Gyeonggi-do, 463-847, Republic of Korea.
authors.forename: Young Sup
authors.initials: YS
authors.lastname: Roh
authors.affiliation: Amore Pacific Corporation Research and Development Center, Yongin-si, Gyeonggi-do, 446-729, Republic of Korea.
authors.forename: John Hwan
authors.initials: JH
authors.lastname: Lee
authors.affiliation: Amore Pacific Corporation Research and Development Center, Yongin-si, Gyeonggi-do, 446-729, Republic of Korea. boomin@amorepacific.com.
authors.forename: Boo-Min
authors.initials: BM
authors.lastname: Kim
mesh_terms: D006197:Hair / Q000737:chemistry*; D006801:Humans; D015416:Maillard Reaction; D066244:Proton Magnetic Resonance Spectroscopy; D017550:Spectroscopy, Fourier Transform Infrared / Q000379:methods*
keywords: Bioanalytical methods; Biomaterials; IR spectroscopy; NMR/ESR