Total phenols, ascorbic acid, β-carotene and lycopene in Portuguese wild edible mushrooms and their antioxidant activities
Total phenols, ascorbic acid, β-carotene and lycopene in Portuguese wild edible mushrooms and their antioxidant activities
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DOI：
10.1016/j.foodchem.2006.07.038
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发表时间：
2007-01-01
期刊：
影响因子：
8.8
通讯作者：
Baptista, Paula
中科院分区：
文献类型：
--
作者：
Barros, Lillian;Ferreira, Maria-Joao;Baptista, Paula
对3种葡萄牙野生食用菌（Leucopaxillusacutteus、Sarcodonimbricatus和Agaricusarcensis）的抗氧化活性进行了评价。以β-胡萝卜素亚油酸酯为模型，考察其还原力、清除DPPH自由基、抑制红细胞溶血和抗氧化活性。在蘑菇提取物中发现的抗坏血酸、β-胡萝卜素和番茄红素的量非常低。另外，酚类化合物的高含量可能是所有物种中发现的良好抗氧化性能的原因。L.在所有的抗氧化活性测定中，黄姑鱼的酚类含量最高，并且被证明是最活跃的，呈现出较低的EC 50值。(c)2006爱思唯尔有限公司保留所有权利。
The antioxidant activities of three Portuguese wild edible mushroom species, Leucopaxillus giganteus, Sarcodon imbricatus, andAgaricus arcensis, were evaluated. Methanolic extracts were screened for their reducing power, 2,2-diphenyl-l-picrylhydrazyl (DPPH) radicalscavenging capacity, inhibition of erythrocytes hemolysis and antioxidant activity using the beta-carotene linoleate model system. The amounts of ascorbic acid, beta-carotene and lycopene found in the mushroom extracts were very low. Otherwise, the high contents of phenolic compounds might account for the good antioxidant properties found in all species. L. giganteus had the highest content of phenols and proved to be the most active, presenting lower EC50 values in all the antioxidant activity assays. (c) 2006 Elsevier Ltd. All rights reserved.