title: Phenylpropanoid acid esters from Korean propolis and their antioxidant activities.
abstract: Ten phenylpropanoic acid esters were isolated from an ethanolic extract of Korean propolis. Their structures were elucidated by spectroscopic methods including NMR and ESI-MS. Caffeic acid esters with catechol moiety exhibited significant ABTS and DPPH radical scavenging activity and protective effect against DNA damage by a Fenton reaction.
authors.affiliation: Division of Biotechnology and Advanced Institute of Environment and Bioscience, Chonbuk National University, 79 Gobong-ro, Iksan-si 570-752, Republic of Korea.
authors.forename: In-Kyoung
authors.initials: IK
authors.lastname: Lee
authors.affiliation: Division of Biotechnology and Advanced Institute of Environment and Bioscience, Chonbuk National University, 79 Gobong-ro, Iksan-si 570-752, Republic of Korea.
authors.forename: Myung-Suk
authors.initials: MS
authors.lastname: Han
authors.affiliation: Division of Biotechnology and Advanced Institute of Environment and Bioscience, Chonbuk National University, 79 Gobong-ro, Iksan-si 570-752, Republic of Korea.
authors.forename: Dae-Won
authors.initials: DW
authors.lastname: Kim
authors.affiliation: Division of Biotechnology and Advanced Institute of Environment and Bioscience, Chonbuk National University, 79 Gobong-ro, Iksan-si 570-752, Republic of Korea. Electronic address: bsyun@jbnu.ac.kr.
authors.forename: Bong-Sik
authors.initials: BS
authors.lastname: Yun
mesh_terms: D000975:Antioxidants / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology*; D003373:Coumaric Acids / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology*; D004249:DNA Damage; D004952:Esters / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology*; D015394:Molecular Structure; D011429:Propolis / Q000737:chemistry*; D056910:Republic of Korea
chemical_list: D000975:Antioxidants; D003373:Coumaric Acids; D004952:Esters; D011429:Propolis
keywords: Antioxidant activity; Phenylpropanoic acid esters; Propolis