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首页> 外文期刊>Chemical papers >HPLC–DAD profiling of a phenolic extract from Moroccan sweet Basil and its application as oxidative stabilizer of sunflower oil
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HPLC–DAD profiling of a phenolic extract from Moroccan sweet Basil and its application as oxidative stabilizer of sunflower oil

机译：HPLC-DAD酚类提取物的分析摩洛哥甜罗勒和它的应用程序葵花籽油的氧化稳定剂

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摘要

Lipid oxidation is the major chemical phenomenon leading to the deterioration of edible oils by the diminution of their organoleptic and nutritional qualities. This study was aimed at profiling a phenolic extract from sweet Basil cultivated in Morocco and to investigate its possible protective effect against the oxidative process in sunflower edible oil as a natural alternative to synthetic antioxidants. The extract provides significant prevention of sunflower oil peroxidation after storage at 37 ℃ for 60 days. However, the effect was relatively less than that exerted by the BHA. Against, the phenolic extract significantly decreased the peroxidation value of oil after heating at 370 ℃/5 h; the effect was comparable to that of BHA. Besides, the extract protects sunflower oil against oxidation induced by copper ion, but this activity remains statistically lower than that exerted by the BHA. Moreover, the DPPH radical scavenging activity of the phenolic extract is less than that recorded by the BHA. This extract inhibits also the oxidative bleaching of β-carotene relatively less than BHA. The extract contains 153.19 ± 1.05 mg/g total phenol. The HPLC analysis showed that the extract contains eight phenolic acids (caftaric acid, gallic acid, chlorogenic acid, caffeic acid, chicoric acid, rosmarinic acid, carnosic acid and p-hydroxybenzoic acid) and two flavonoids (rutin and luteolin-7 glucoside). In conclusion, we suggest that the phenolic Basil extract is a good source of natural antioxidants that might be exploited in edible oil preservation.
机译：脂质氧化是主要的化学现象导致食用油的恶化他们的感官和减少营养品质。分析酚类提取物甜罗勒种植在摩洛哥和对其进行调查对氧化可能的保护作用在向日葵食用油作为一个自然过程替代合成抗氧化剂。提取提供了重要的预防葵花油过氧化反应后存储在37℃为60天。不到底部钻具组合产生的。酚类提取显著下降过氧化值的油加热后370年℃/ 5 h;此外,提取保护向日葵油对铜离子导致的氧化,但这活动统计上仍低于对底部钻具组合。酚类提取物的清除活动不到底部钻具组合的记录。抑制的氧化漂白β-胡萝卜素相对小于底部钻具组合。包含153.19±1.05毫克/克总酚。高效液相色谱分析表明,提取包含8个酚酸(caftaric酸、没食子酸、绿原酸,咖啡酸,chicoric酸,rosmarinic酸、鼠尾草酸羟基苯甲酸)和两个类黄酮(芦丁和luteolin-7葡萄糖苷)。表明,酚醛罗勒提取是一个很好的天然抗氧化剂的来源利用在食用油保存。

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