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辣木精油对黑腹果蝇寿命及SOD和MDA的影响 被引量:12
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作者 彭晓云 李均祥 张明 《湖北农业科学》 北大核心 2009年第3期555-557,共3页
研究了辣木精油对果蝇寿命及各代果蝇体内超氧化物歧化酶(SOD)和丙二醛(MDA)的影响。结果表明,各浓度组果蝇的半数死亡时间、平均寿命及平均最高寿命均较对照组长(P<0.05或P<0.01);随着喂饲时间增长和浓度的增加,果蝇体内的SOD活... 研究了辣木精油对果蝇寿命及各代果蝇体内超氧化物歧化酶(SOD)和丙二醛(MDA)的影响。结果表明,各浓度组果蝇的半数死亡时间、平均寿命及平均最高寿命均较对照组长(P<0.05或P<0.01);随着喂饲时间增长和浓度的增加,果蝇体内的SOD活力明显增强,MDA含量明显下降。辣木精油具有高度抗氧化能力,可清除体内自由基,使果蝇寿命延长。 展开更多
关键词 辣木精油 果蝇 超氧化物歧化酶 丙二醛
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辣木精油对果蝇寿命及抗氧化后效应的影响 被引量:3
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作者 彭晓云 张明 +1 位作者 李均祥 刘静华 《中国老年学杂志》 CAS CSCD 北大核心 2010年第20期2966-2967,共2页
目的观察辣木精油对果蝇的寿命及抗氧化系统后效应的影响。方法以幼虫、1、15、30 d龄期果蝇为实验组,在含520 mg/kg辣木精油培养基中培养1 w,观测雌雄性果蝇的寿命及50 d龄果蝇体内超氧化歧化酶(SOD)活性和丙二醛(MDA)含量。结果实验... 目的观察辣木精油对果蝇的寿命及抗氧化系统后效应的影响。方法以幼虫、1、15、30 d龄期果蝇为实验组,在含520 mg/kg辣木精油培养基中培养1 w,观测雌雄性果蝇的寿命及50 d龄果蝇体内超氧化歧化酶(SOD)活性和丙二醛(MDA)含量。结果实验组半数死亡时间都延长,15 d龄平均寿命与对照组比较有显著性差异(P<0.05或P<0.01),30 d龄平均最高寿命最长。越晚时期喂饲辣木油,果蝇体内SOD活性越强,无性别差异。MDA的含量以30 d龄为低,雌性表现明显。结论辣木精油对果蝇的寿命和抗氧化能力后效应影响,与停用时间长短有关。 展开更多
关键词 辣木精油 果蝇 超氧化物歧化酶 丙二醛 后效应
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Cytotoxicity and effect of extraction methods on the chemical composition of essential oils of Moringa oleifera seeds 被引量:2
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作者 Rowland Monday Ojo KAYODE Anthony Jide AFOLAYAN 《Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)》 SCIE CAS CSCD 2015年第8期680-689,共10页
Renewed interest in natural materials as food flavors and preservatives has led to the search for suitable essential oils. Moringa oleifera seed essential oil was extracted by solvent-free microwave and hydrodistillat... Renewed interest in natural materials as food flavors and preservatives has led to the search for suitable essential oils. Moringa oleifera seed essential oil was extracted by solvent-free microwave and hydrodistillation. This study assessed its chemical constituents. Cytotoxicity of the oils was investigated using hatchability and lethality tests on brine shrimps. A total of 16 and 26 compounds were isolated from the hydrodistillation extraction (HDE) and solvent-free microwave extraction (SME) oils, respectively, which accounted for 97.515% and 97.816% of total identifiable constituents, respectively. At 24 h when the most eggs had hatched, values of the SME (56.7%) and HDIE (60.0%) oils were significantly different (P〈0.05) from those of sea water (63.3%) and chloramphenicol (15.0%). Larva lethality was different significantly (P〈0.05) between HDE and SME oils at different concentrations and incubation periods. The median lethal concentration (LC50) of the oils was 〉 1000 mg/ml recommended as an index for non-toxicity which gives the oil advantage over some antioxidant, antimicrobial, therapeutic, and preservative chemicals. 展开更多
关键词 Moringa oleifera seed Extraction methods Essential oil CYTOTOXICITY
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