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首页> 外文期刊>African Journal of Biotechnology >Primary study on the components and main physico-chemical as well as biological properties of the oil of Alpinia galanga (L.) Wild in Phu Tho-Vietnam
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Primary study on the components and main physico-chemical as well as biological properties of the oil of Alpinia galanga (L.) Wild in Phu Tho-Vietnam

机译：越南富富野山高良姜油的成分，主要理化及生物学性质的初步研究

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摘要

The oil of Alpinia galanga (L.) Willd in Phu Tho was obtained by steam distillation and dried with Na2SO4. By Gas chromatography-mass spectrometry (GC-MS) method, 29 components in the oil were predicted by comparing their retention times and molecular weights with the standards’. In particular, there were 10 hydrocarbons such as monoterpenes: 29.15%, sesquiterpenes: 21.06%, and 19 oxygenated components like aldehydes (7.29%), alcohols (32.43%), ketones (1.09%), and esters (7.57%). Physico-chemical properties, antioxidant activities as well as antimicrobial activities of the oils were also analyzed. The density (at 20°C), acid index and ester index of the oil were 0.812 g/ml; 0.653 mg KOH/g and 0.728 mg KOH/g, respectively. The antioxidant activity was determined by using 1,1-diphenyl-2-picrylhydrazol (DPPH) radical percentage inhibition and it was 47.15±0.34%. Antimicrobial activity against Salmonella typhi, Bacillus cereus, Staphylococcus aureus and Escherichia coli of the oil was identified by agar diffusion method.
机译：通过蒸汽蒸馏获得富寿山高良姜（L.）芥末油，并用Na2SO4干燥。通过气相色谱-质谱（GC-MS）方法，通过将其保留时间和分子量与标准品的保留时间进行比较，预测了该油中的29种成分。特别地，有10种碳氢化合物，例如单萜：29.15％，倍半萜烯：21.06％，以及19种含氧组分，例如醛（7.29％），醇（32.43％），酮（1.09％）和酯（7.57％）。还分析了这些油的理化性质，抗氧化活性和抗菌活性。油的密度（在20°C下），酸指数和酯指数为0.812 g / ml;分别为0.653 mg KOH / g和0.728 mg KOH / g。抗氧化剂活性通过使用1，1-二苯基-2-吡啶并肼基（DPPH）自由基抑制率来测定，为47.15±0.34％。通过琼脂扩散法鉴定了该油对鼠伤寒沙门氏菌，蜡状芽孢杆菌，金黄色葡萄球菌和大肠杆菌的抗菌活性。

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