Free- Radical Scavenging and Antioxidant Activity of Volatile Oils of Local Clove [Syzygium aromaticum L.] and Cinnamon[Cinnamomum zeylanicum] Isolated by Supercritical Fluid Extraction [SFE)

Ahmed H. El-Ghorab; Khaled F. El-Massry

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Free- Radical Scavenging and Antioxidant Activity of Volatile Oils of Local Clove [Syzygium aromaticum L.] and Cinnamon[Cinnamomum zeylanicum] Isolated by Supercritical Fluid Extraction [SFE)

机译：超临界流体萃取[SFE]分离的丁香[Syzygiumaromaticum L.]和肉桂[Cinnamomum zeylanicum]挥发油的自由基清除和抗氧化活性

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The volatile compounds responsible for the flavour of local dried clove buds and cinnamon bark have been extracted using supercritical fluid extraction (SFE). Both clove and cinnamon extracts (SFE) have been examined by GC/MS and showed the presence of a high percentage of thermolabile components such as eugenyl acetate (24.26%) in clove SFE essential oil sample, as well as ethyl cinnamate (3.2%) and other aldehydes in cinnamon SFE essential oil sample. These results indicate the effect of extraction technique on the aroma quality of essential oils extracted by SFE. Also, clove and cinnamon SFE extracts showed a high antioxidant activity in comparison with butylated hydroxyanisole (BHA) and tertiary butylhydroquinone (TBHQ) determined by two assays (linoleic acid oxidation and 1,1, diphenyl -2- picrylhydrazyl [DPPH] assays).

机译：使用超临界流体萃取（SFE）萃取了导致局部丁香干和肉桂皮味道的挥发性化合物。丁香和肉桂提取物（SFE）均已通过GC / MS进行了检测，结果显示丁香SFE精油样品中存在高百分比的热不稳定成分，例如乙酸戊二烯酯（24.26％），以及肉桂酸乙酯（3.2％）和肉桂SFE精油样品中的其他醛。这些结果表明提取工艺对SFE提取精油香气质量的影响。此外，丁香和肉桂SFE提取物与通过两种测定法（亚油酸氧化和1,1，二苯基-2-甲基-2-肼基[DPPH]测定）测定的丁基化羟基茴香醚（BHA）和叔丁基对苯二酚（TBHQ）相比，具有较高的抗氧化活性。

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来源
《Bulletin of the National Research Centre》 |2003年第5期|p.551-564|共14页
作者
Ahmed H. El-Ghorab; Khaled F. El-Massry;
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作者单位

Flavour and Aromatic Dept., National Research Centre,Dokki, Cairo, Egypt;

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原文格式 PDF
正文语种 eng
中图分类自然科学总论;
关键词
clove; cinnamon; volatile components; supercritical fluid extraction (SFE); antioxidant activity; DPPH;

机译：丁香;肉桂;挥发性成分;超临界流体萃取（SFE）;抗氧化活性;DPPH;

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Free- Radical Scavenging and Antioxidant Activity of Volatile Oils of Local Clove [Syzygium aromaticum L.] and Cinnamon[Cinnamomum zeylanicum] Isolated by Supercritical Fluid Extraction [SFE)

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