CAJ | 학술논문

报道草莓中黄酮类物质含量的测定方法,并比较了总抗氧化成分与抗氧化活性(DPPH,FRAP)之间的相互关系.黄酮类物质的水解随着HCl浓度和水解时间的不同发生较大的差异,结果表明,总多酚类物质和总黄酮类物质之间有很高的相关关系,总多酚类物质和总黄酮类物质对DPPH有很高的相关关系,而且总多酚类物质和总黄酮类物质对FRAP的相关关系各为r=0.958, P ＜0.05和r=0.936, P ＜0.05,从结果可以推测:草莓体现出很强的抗氧化活性,这与草莓中的总多酚类物质成分密不可分.
보도초매중황동류물질함량적측정방법,병비교료총항양화성분여항양화활성(DPPH,FRAP)지간적상호관계.황동류물질적수해수착HCl농도화수해시간적불동발생교대적차이,결과표명,총다분류물질화총황동류물질지간유흔고적상관관계,총다분류물질화총황동류물질대DPPH유흔고적상관관계,이차총다분류물질화총황동류물질대FRAP적상관관계각위r=0.958, P ＜0.05화r=0.936, P ＜0.05,종결과가이추측:초매체현출흔강적항양화활성,저여초매중적총다분류물질성분밀불가분.
The amounts of flavonoid (myricetin, quercetin and kaempferol), antioxidant contents (total phenolic and total flavonoid) and antioxidant activities (DPPH and FRAP) were analyzed in strawberry. Quantitative analysis of conjugated flavonoid contents were obtained after different hydrolysis concentration and reaction period. The highest yields of myricetin and quercetin were found with 1.0M HCl and a reaction period of 0.5 hr, however, for kaempferol was 1.0M HCl and a reaction period of 1hr, respectively. In the study, we also estimated the correlation coefficient of TPC, TFC, DPPH and FRAP. In addition, a positive correlation was observed (r=0.980, P ＜0.05) between TPC and TFC, TPC and TFC are correlated to the DPPH activity (r=0.913, P ＜0.05 and r=0.899, P ＜0.05, respectively), and to the FRAP activity (r=0.958, P ＜0.05 and r=0.936, P ＜0.05, respectively), respectively. These results pointed out that strawberry generally possesses a high level of antioxidant activities, which could be linked to the levels of phenolic compounds in the fruit.