林产化学与工业2025，Vol.45Issue(3)：37-44,8.DOI:10.20195/j.issn.0253-2417.2024036
不同产地特级初榨橄榄油品质对比及抗氧化活性分析
Quality Comparison and Antioxidant Activity Analysis of Extra-virgin Olive Oil From Different Origin
摘要
Abstract
The acid value,peroxide value,UV absorbance at 232 and 270 nm(A232和A270)and main chemical components of 40 commercial extra-virgin olive oil(EVOO)samples from China,Spain,Italy and Greece were studied.The antioxidant activities of polyphenol extracts from different countries were determined,and the correlation between total polyphenol content and half inhibitory mass concentration(IC50)value was analyzed.The results showed that the qualification rates for acid value(＜1.60 mg/g)and peroxide value(＜10 mmol/kg)of these 40 samples were 97.5％,while whose for A232(1.02-1.80)and A270(0.05-0.13)indexes reached 100％.The total polyphenol contents in EVOO samples from four countries differed significantly,with the concentrations of hydroxyltyrosol,tyrosol,oleocantthal and oleacein in Chinese EVOO samples being(11.66±2.50),(9.61±2.65),(273.63±43.09),and(332.04±49.08)mg/kg,respectively,significantly higher than those in EVOO samples from the other three countries(p＜0.05).No significant differences were observed in the contents of major fatty acids,sterols,and tocopherols.In addition,three antioxidant assays(DPPH·、·ABTS+,and β-carotene bleaching)consistently demonstrated strong antioxidant activity in EVOO.The ranges of IC50 were(74.1±3.0)to(560.0±15.0),(71.9±3.0)to(701.7±12.0),and(68.0±2.3)to(617.0±17.0)g/L.Correlation analysis showed a negative relationship between total polyphenol content and IC50 values(an indicator of antioxidant capacity)(p＜0.05),with the slopes of the correlation equation were-1.665,-1.931 and-1.792.关键词
油橄榄/特级初榨橄榄油/脂肪酸/多酚Key words
olive/extra virgin olive oil/fatty acids/phenolic compounds分类
化学化工引用本文复制引用
张杨,谢普军,邓叶俊,张彩虹,黄立新..不同产地特级初榨橄榄油品质对比及抗氧化活性分析[J].林产化学与工业,2025,45(3):37-44,8.基金项目
中国林科院中央级公益性科研院所基本科研业务费专项资金(CAFYBB2021ZI002) （CAFYBB2021ZI002）
