CAJ | 학술논문

以水和乙醇为提取剂，运用超声强化方法提取了壶瓶枣中水溶性及醇溶性成份。采用DPPH·、HO·、O2-·、还原能力及金属螯合能力方法研究了提取物的抗氧化活性，并对提取物中的总黄酮含量进行了测定。结果表明：两种提取物均具有一定的抗氧化活性，水提取物的抗氧化能力为：O2-·（IC501.80μg/mL）＞DPPH·（IC504.13μg/mL）＞HO·（IC5061.04μg/mL），醇提取物的抗氧化能力为：DPPH·（IC500.58μg/mL）＞O2-·（IC501.70μg/mL）＞HO·（IC5060.03μg/mL），醇提物的金属螯合能力和还原能力均高于水提物。提取物的抗氧化活性与其总黄酮含量具有一定的相关性。
이수화을순위제취제，운용초성강화방법제취료호병조중수용성급순용성성빈。채용DPPH·、HO·、O2-·、환원능력급금속오합능력방법연구료제취물적항양화활성，병대제취물중적총황동함량진행료측정。결과표명：량충제취물균구유일정적항양화활성，수제취물적항양화능력위：O2-·（IC501.80μg/mL）＞DPPH·（IC504.13μg/mL）＞HO·（IC5061.04μg/mL），순제취물적항양화능력위：DPPH·（IC500.58μg/mL）＞O2-·（IC501.70μg/mL）＞HO·（IC5060.03μg/mL），순제물적금속오합능력화환원능력균고우수제물。제취물적항양화활성여기총황동함량구유일정적상관성。
Ultrasound-assisted extraction was used to extract activated components from Zizyphus jujube cv. Huping using water and ethanol as extracting agents. DPPH·, HO·, O2-·, reducing powers and ferrous iron chelating capacities were carried out to evaluate the antioxidant potential of both of the extracts. The constant of total flavonoid of both of extracts was determined. The result showed that both extracts exhibit good antioxidant;The order for the free radical scavenging activities of the water extract was O 2-· (IC50 1.80μg/mL), DPPH·(IC50 4.13μg/mL) and HO·(IC50 61.04μg/mL), and that of ethanol extract were DPPH (IC50 0.58μg/mL), O2-·(IC50 1.70μg/mL), and HO·(IC50 60.03μg/mL). The reducing powers and ferrous iron chelating capacities of ethanol extract was better than that of water extract. In addition , there was a positive correlation between the antioxidant and the total flavonoid content of the extracts.