title: Enhancement of antioxidant effects of naringin after atmospheric pressure dielectric barrier discharge plasma treatment.
abstract: Naringin is the natural chief bitter flavonoid found in Citrus species. Herein, bitter naringin was treated with atmospheric pressure plasma to afford two new converted flavonoids, narinplasmins A (2) and B (3), along with the known compound, 2R-naringin. The structures of the two new naringin derivatives were elucidated on the basis of spectroscopic methods. The antioxidant activity of all isolates was evaluated based on 1,1-diphenyl-2-picrylhydrazyl and peroxynitrite (ONOO(-)) scavenging assays. The new flavanone glycoside 2 containing a methoxyalkyl group exhibited significantly improved antioxidant properties in these assays relative to the parent naringin.
authors: Department of Food Science and Biotechnology, Daegu University, Gyeongsan 712-714, Republic of Korea.
authors: Tae Hoon
authors: TH
authors: Kim
authors: Department of Food Science and Biotechnology, Daegu University, Gyeongsan 712-714, Republic of Korea.
authors: Soo Jeung
authors: SJ
authors: Jang
authors: Food Consumption Safety Division, Ministry of Food And Drug Safety, Cheongju 361-709, Republic of Korea.
authors: Hyung-Wook
authors: HW
authors: Chung
authors: Department of Agricultural Biotechnology, Center for Food and Bioconvergence, and Research Institute of Agriculture and Life Science, Seoul National University, Seoul 151-921, Republic of Korea.
authors: Hyun-Joo
authors: HJ
authors: Kim
authors: Department of Agricultural Biotechnology, Center for Food and Bioconvergence, and Research Institute of Agriculture and Life Science, Seoul National University, Seoul 151-921, Republic of Korea.
authors: Hae In
authors: HI
authors: Yong
authors: Department of Physics, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Republic of Korea.
authors: Wonho
authors: W
authors: Choe
authors: Department of Agricultural Biotechnology, Center for Food and Bioconvergence, and Research Institute of Agriculture and Life Science, Seoul National University, Seoul 151-921, Republic of Korea. Electronic address: cheorun@snu.ac.kr.
authors: Cheorun
authors: C
authors: Jo
mesh_terms: D000975:Antioxidants / Q000737:chemistry*; D001274:Atmospheric Pressure; D002942:Circular Dichroism; D002957:Citrus / Q000737:chemistry / Q000378:metabolism; D004187:Disaccharides / Q000737:chemistry*; D044950:Flavanones / Q000737:chemistry*; D005419:Flavonoids / Q000737:chemistry; D009682:Magnetic Resonance Spectroscopy; D008968:Molecular Conformation; D030421:Peroxynitrous Acid / Q000737:chemistry
chemical_list: D000975:Antioxidants; D004187:Disaccharides; D044950:Flavanones; D005419:Flavonoids; C000603768:narinplasmin B; D030421:Peroxynitrous Acid; C005274:naringin
keywords: Alkylated flavonoid; Antioxidant; Atmospheric pressure plasma; Dielectric barrier discharge; Naringin