Chemical composition, antioxidant and antibacterial activities of essential oil from Korean Citrus unshiu peel

• 作者: Sun Chul Kang Xiao Nan Yang
• 来源期刊: 农业化学和环境(英文)
• 学科: 医学
• 关键词: CITRUS unshiu ESSENTIAL Oil GC-MS ANTIOXIDANT ANTIBACTERIAL
• 年，卷（期）: 2013,（3）
• 页码范围: 42-49
• 页数: 8页
• 分类号: R28

摘要

The chemical composition, antioxidant and antibacterial activities of essential oil from peel of Citrus unshiuwhich cultivated in South Korea were investigated. Eight compounds were identified as l-limonene (88.11%), γ-terpinene (4.66%), cyclohexane, 2,4-diisopropenyl-1-methyl-1-vinyl (1.82%), diethyl phthalate (1.02%), β-linalool (0.97%), β-myrcene (0.91%), α-farnesene (0.91%) and o-cymene (0.85%) by GC-MS. The SC50values of this essential oil on DPPH and superoxide anion were 0.21 and 0.22% (v/v), respectively. The results of zone of inhibition, MIC, MBC and cell viability demonstrated the essential oil of-Citrus unshiupeel displayed antibacterial effect against B. cereus KCTC 14042, B. subtilis ATCC 6633 and S. aureusATCC 6538. The release of cell material and potassium ion from the B. subtilis ATCC 6633 cells treated with essential oil was further investigated. SEM observation also revealed the damaging effect of the essential oil on the morphology of B. subtilisATCC 6633 cells at minimum inhibitory concentration.