食品安全质量检测学报
食品安全質量檢測學報
식품안전질량검측학보
FOOD SAFETY AND QUALITY DETECTION TECHNOLOGY
2014年
7期
2003-2007
,共5页
李强%任虹%王友升%李婷
李彊%任虹%王友升%李婷
리강%임홍%왕우승%리정
玉米须%多酚%抗氧化活性
玉米鬚%多酚%抗氧化活性
옥미수%다분%항양화활성
corn silk%phenolics%antioxidant activity
目的：分析玉米须多酚成分及其抗氧化活性。方法采用Folin-Ciocalteu法测定玉米须中总多酚含量,利用 HPLC法分析玉米须多酚成分；采用抗氧化能力指数(ORAC)法测定玉米须多酚的抗氧化活性。结果玉米须中总多酚含量为1.26 mg/g,含有儿茶素、绿原酸、咖啡酸、阿魏酸、根皮苷、槲皮素等多种多酚类物质,且具有一定的抗氧化活性,其平均ORAC值为469.6μmol TE/g。结论玉米须富含具有抗氧化活性的多酚成分,为玉米须进一步开发利用提供依据。
目的：分析玉米鬚多酚成分及其抗氧化活性。方法採用Folin-Ciocalteu法測定玉米鬚中總多酚含量,利用 HPLC法分析玉米鬚多酚成分；採用抗氧化能力指數(ORAC)法測定玉米鬚多酚的抗氧化活性。結果玉米鬚中總多酚含量為1.26 mg/g,含有兒茶素、綠原痠、咖啡痠、阿魏痠、根皮苷、槲皮素等多種多酚類物質,且具有一定的抗氧化活性,其平均ORAC值為469.6μmol TE/g。結論玉米鬚富含具有抗氧化活性的多酚成分,為玉米鬚進一步開髮利用提供依據。
목적：분석옥미수다분성분급기항양화활성。방법채용Folin-Ciocalteu법측정옥미수중총다분함량,이용 HPLC법분석옥미수다분성분；채용항양화능력지수(ORAC)법측정옥미수다분적항양화활성。결과옥미수중총다분함량위1.26 mg/g,함유인다소、록원산、가배산、아위산、근피감、곡피소등다충다분류물질,차구유일정적항양화활성,기평균ORAC치위469.6μmol TE/g。결론옥미수부함구유항양화활성적다분성분,위옥미수진일보개발이용제공의거。
Objective To analyze the phenolics composition of corn silk and its antioxidant activity in vi-tro. Methods Folin-Ciocalteu method was used to evaluate the amounts of total phenolics of corn silk. Phe-nolics composition of corn silk was analyzed by HPLC and the antioxidant activity was evaluated by ORAC method. Results The amount of phenolics in corn silk was 1.26 mg GAE/g. HPLC analysis revealed that 6 phenolic acids (including catechinic acid, chlorogenic, caffeic acid, ferulic acid, phlorizin, and quercetin) were detected. Antioxidant activity assay showed that phenolics of corn silk had an effective antioxidant activity and the average ORAC value was 469.6μmol TE/g. Conclusion Corn silk is rich in polyphenols with antioxidant activity.
