期刊
CHEMICAL PAPERS
卷 70, 期 6, 页码 726-736出版社
SPRINGER INTERNATIONAL PUBLISHING AG
DOI: 10.1515/chempap-2016-0016
关键词
red clover (Trifolium pratense L.) honey; volatiles; antioxidant activity; anticorrosion activity
资金
- Croatian Science Foundation [HRZZ-IP-11-2013-8547]
- Croatian Science Foundation
Headspace solid-phase micro-extraction (HS-SPME) and ultrasonic solvent extraction (USE) were used for red clover honey volatiles extraction. The extracts were analysed using gas chromatography and mass spectrometry (GC-MS). Lilac aldehyde isomers dominated in the headspace (individual range from 7.6 % to 21.4 %) followed by phenylacetaldehyde (10.1-31.2 %) and benzaldehyde (7.0-15.7 %). Higher aliphatic alcohols and hydrocarbons were the predominant constituents of the honey extracts. The honey and its extracts exhibited rather weak anti-radical activity (DPPH assay) and total antioxidant activity (FRAP assay). On the other hand, the honey's inhibitive properties towards the corrosion of AA 2017A alloy in NaCl solution (potentiodynamic polarisation and potentiostatic pulse measurements) revealed the honey to be a very good anodic inhibitor (efficiency up to 76 %) while the honey extracts (USE) showed better inhibition efficacy. (C) 2016 Institute of Chemistry, Slovak Academy of Sciences
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