کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6404532 | 1330904 | 2014 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: In vitro comparison of antioxidant capacity of cumin (Cuminum cyminum L.) oils and their main components In vitro comparison of antioxidant capacity of cumin (Cuminum cyminum L.) oils and their main components](/preview/png/6404532.png)
- Antioxidant activity of β-pinene, p-cymene, γ-terpinene, cuminaldehyde was studied.
- Antioxidant efficiency was estimated by IC50 values and kinetics rates.
- Results showed γ-terpinene was the effective antioxidant component in cumin oil.
The antioxidant activities of β-pinene, p-cymene, γ-terpinene, cuminaldehyde and cumin oils (cumin oleoresin/COR, cumin essential oil/CEO, distillation residue/DR and distillate condensed from cold trap/CT) were investigated in the present study. IC50 values and kinetics rates were used to evaluate the efficiency of tested samples in scavenging the alkylperoxyl radical generated in the β-carotene-linoleic acid system and the 2,2-diphenyl-1-picrylhydrazyl radical (DPPH). In kinetic approach, antioxidant activities of tested samples were expressed as the rate of β-carotene bleaching (R(β-carotene)) and DPPH scavenging (R(DPPH)), respectively. The order of antioxidant activities of cumin oils was DR = COR > CEO > CT. γ-Terpinene exhibited lower R(β-carotene) value and the lowest IC50(β-carotene) value, which indicated the stronger response in alkylperoxyl radical scavenging. The R2(DPPH) values for γ-terpinene, followed by DR and COR, showed high response in scavenging DPPH, with IC50 values of 22.73, 6.72, 8.53 mg/ml, respectively. The most efficient antioxidant compounds in cumin oils appeared to be γ-terpinene.
Journal: LWT - Food Science and Technology - Volume 55, Issue 2, March 2014, Pages 632-637