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Abstract Title:

Analysis and Antioxidant Activity of Extracts from Broccoli (Brassica oleracea L.) Sprouts.

Abstract Source:

J Agric Food Chem. 2015 Jan 20. Epub 2015 Jan 20. PMID: 25574973

Abstract Author(s):

Hae Won Jang, Joon-Kwan Moon, Takayuki Shibamoto

Article Affiliation:

Hae Won Jang

Abstract:

Samples prepared from fresh broccoli (Brassica oleracea L.) sprouts by water distillation or freeze-drying were examined for antioxidant activity using three assays. All samples exhibited dose-dependent antioxidant activity. The antioxidant activity ranged from 74.48± 0.46% (less volatile sample) to 93.2 ± 0.2% (dichloromethane extract sample) at the level of 500 μg/mL. Both dichloromethane extract samples from a water distillate of broccoli sprouts and freeze-dried broccoli sprouts showed potent antioxidant activity, which was comparable to that of BHT. Among the 43 compounds positively identified by gas chromatography-mass spectrometry, 5-methylthiopentylnitrile (31.64 μg/g) was found in the greatest concentration, followed by 4-methylthiobutylisothiocyanate (14.55 μg/g), 4-methylthiobutylnitrile (10.63 μg/g), 3-methylthiopropylisothiocyanate (3.00 μg/g), and 4-methylpentylisothiocyanate (2.48 μg/g). These isothiocyanates are known to possess antioxidant properties. Possible phenolic antioxidants found are 4-(1-methylpropyl)phenol (0.012 μg/g), 4-methylphenol (0.159 μg/g), and 2-methoxy-4-vinylphenol (0.009 μg/g). The present study demonstrates that broccoli sprouts are a good source of natural antioxidants.

Study Type : In Vitro Study
Additional Links
Pharmacological Actions : Antioxidants : CK(14410) : AC(5758)

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Sayer Ji
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