Total phenolic contents and antioxidant activity of corn tassel extracts
Total phenolic contents and antioxidant activity of corn tassel extracts
复制标题
DOI：
10.1016/j.foodchem.2008.06.014
复制
发表时间：
2009-02-01
期刊：
影响因子：
8.8
通讯作者：
Ammar, Abdalla S. M.
中科院分区：
文献类型：
--
作者：
Mohsen, Sobhy M.;Ammar, Abdalla S. M.
磨碎的玉米穗是玉米的副产品，被用作酚类化合物的来源。水、乙醇、甲醇、丙酮、己烷、氯仿、丁醇、石油醚和二氯甲烷被评估为不同极性溶剂来提取这些酚类化合物。乙醇对此类酚类化合物的提取能力最高，其次是甲醇和水，总酚含量分别为0.1575%、0.1125%和0.0737%。玉米雄穗的乙醇、甲醇、丙酮、丁醇和水提取物的自由基清除活性（％RSA）的抗氧化活性分别为83.0％至85.2％、69.9％至83.7％、69.8％至80.4％、22.2％至49.1％和14.8％至19.3％。玉米穗的乙醇提取物被成功地用于延缓葵花籽油的氧化，并且获得的诱导期值与叔丁基氢醌（TBHQ）的诱导期值相当。 (c) 2008 Elsevier Ltd. 保留所有权利。
Ground corn tassels, a by-product of corn, were used as a source of phenolic compounds. Water, ethanol, methanol, acetone, hexane, chloroform, butanol, petroleum ether and methylene chloride were evaluated as different polarity solvents to extract these phenolic compounds. Ethanol exhibited the highest extraction ability for such phenolic compounds, followed by methanol and water, where the total phenols were 0.1575%, 0.1125% and 0.0737%, respectively. Antioxidant activity of corn tassels ranged from 83.0% to 85.2%, 69.9% to 83.7%, 69.8% to 80.4%, 22.2% to 49.1% and 14.8% to 19.3% radical scavenging activity (% RSA) for ethanol, methanol, acetone, butanol and water extracts, respectively. The ethanolic extract of the corn tassels was successfully utilised to retard the oxidation of sunflower oil and the obtained induction period values were comparable to those of tert-butylhydroquinone (TBHQ). (c) 2008 Elsevier Ltd. All rights reserved.