Hamed Said Fatouh, Sadek Zainab, Edris Amr
Fats & Oils Department, National Research Center, Cairo, Egypt.
J Oleo Sci. 2012;61(11):641-8. doi: 10.5650/jos.61.641.
Clove bud essential oil (CEO) and its major individual phenolic constituent eugenol were formulated as nanoparticles in water-based microemulsion systems. The oil titration method was used to incorporate different amounts of the oil and eugenol in the micellar solution of Tween-20. The Antioxidant and antimicrobial activities were evaluated using the DPPH* free radical scavenging assay and the agar disc dilution method, respectively. Results showed that microemulsion improved the evaluated activities of CEO and eugenol compared with the crude counterparts. Individual eugenol microemulsion was more effective than CEO microemulsion which contained only 61.7% eugenol among its constituents. The results of this study could have potential applications in water-based disinfectants, preservation and flavoring of food and in personal hygiene products. It may also have promising applications in the nutraceutical and functional beverage field.
丁香花蕾精油（CEO）及其主要的单一酚类成分丁香酚被配制成水基微乳液系统中的纳米颗粒。采用油滴定法将不同量的精油和丁香酚加入吐温-20的胶束溶液中。分别使用DPPH*自由基清除试验和琼脂平板稀释法评估抗氧化和抗菌活性。结果表明，与粗品相比，微乳液提高了CEO和丁香酚的评估活性。单一丁香酚微乳液比CEO微乳液更有效，后者的成分中仅含61.7%的丁香酚。本研究结果在水基消毒剂、食品保鲜和调味以及个人卫生用品方面可能具有潜在应用。它在营养保健品和功能性饮料领域也可能有广阔的应用前景。
