Antioxidative activities of white rose flower extract and pharmaceutical advantages of its hexane fraction via free radical scavenging effects.
In this study, we determined the antioxidant activities of two different solvent fractions(butanol and hexane) obtained from white Rosa rugosa flowers by employing various assays such as 2,2-diphenyl-1-picrylhydrazyl hydrate (DPPH), 2,2'-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid) (ABTS) radical scavenging activity, and nitric oxide (NO) scavenging and inhibition activity in S-nitroso-N-acetylpenicillamine (SNAP) in the RAW264.7 model. In addition, more advanced antioxidant assays were conducted, including lipid peroxidation, hydroxyl radical-mediated oxidation, DNA fragmentation, apoptosis, and cell growth. The results revealed that the hexane fraction, which contained a significant amount of polyphenols and volatile components, had excellent antioxidant potency and could scavenge free radicals of DPPH and ABTS. Interestingly, the hexane fraction inhibited lipid peroxidation to almost the same degree as a chemical antioxidant. In the NO assay, the hexane fraction effectively scavenged free radicals at all dose ranges and is expected to inhibit NO production in mammalian cells. The hexane fraction effectively prevented oxidative damage, which was induced by Cu2+/H2O2, to target proteins at lower concentrations (>1 microg x mL(-1)). The DNA fragmentation and the cell-level assays suggest that the hexane fraction may play a crucial role in inhibiting peroxynitrite and H2O2 attack. Based on the findings described in this study, the hexane fraction holds promise for use as a novel pharmaceutical antioxidant.
Park
Dongsun
D
College of Veterinary Medicine and Research Institute of Veterinary Medicine, Chungbuk National University, 410 Seongbongro (Gaeshin-dong), Cheongju, Chungbuk 361-763, Republic of Korea.
Jeon
Jeong Hee
JH
Kwon
Sang-Chul
SC
Shin
Sunhee
S
Jang
Ja Young
JY
Jeong
Heon Sang
HS
Lee
Do Ik
DI
Kim
Yun-Bae
YB
Joo
Seong Soo
SS
D000818:Animals; D000975:Antioxidants / Q000737:chemistry* / Q000494:pharmacology; D052160:Benzothiazoles / Q000737:chemistry; D001713:Biphenyl Compounds / Q000737:chemistry; D002460:Cell Line; D002851:Chromatography, High Pressure Liquid; D035264:Flowers / Q000737:chemistry*; D016166:Free Radical Scavengers / Q000737:chemistry* / Q000494:pharmacology; D008401:Gas Chromatography-Mass Spectrometry; D006586:Hexanes / Q000737:chemistry*; D007202:Indicators and Reagents / Q000737:chemistry; D015227:Lipid Peroxidation / Q000187:drug effects; D008297:Male; D051379:Mice; D009569:Nitric Oxide / Q000378:metabolism; D010636:Phenols / Q000737:chemistry; D010851:Picrates / Q000737:chemistry; D010936:Plant Extracts / Q000737:chemistry*; D051381:Rats; D017207:Rats, Sprague-Dawley; D027826:Rosa / Q000033:anatomy & histology / Q000737:chemistry*; D012997:Solvents / Q000737:chemistry; D013451:Sulfonic Acids / Q000737:chemistry
D000975:Antioxidants; D052160:Benzothiazoles; D001713:Biphenyl Compounds; D016166:Free Radical Scavengers; D006586:Hexanes; D007202:Indicators and Reagents; D010636:Phenols; D010851:Picrates; D010936:Plant Extracts; D012997:Solvents; D013451:Sulfonic Acids; C002502:2,2'-azino-di-(3-ethylbenzothiazoline)-6-sulfonic acid; D009569:Nitric Oxide; C004931:1,1-diphenyl-2-picrylhydrazyl