Vieira Vanessa, Barros Lillian, Martins Anabela, Ferreira Isabel C F R
Centro de Investigação de Montanha (CIMO), ESA, Instituto Politécnico de Bragança, Campus de Santa Apolónia, Apartado 1172, Bragança 5301-855, Portugal.
School of Agriculture, Polytechnic Institute of Bragança, Campus de Santa Apolónia, Ap. 1172, Bragança 5301-855, Portugal.
Molecules. 2016 Jan 15;21(1):99. doi: 10.3390/molecules21010099.
The wild mushroom Leucopaxillus candidus (Bres.) Singer was studied for the first time to obtain information about its chemical composition, nutritional value and bioactivity. Free sugars, fatty acids, tocopherols, organic and phenolic acids were analysed by chromatographic techniques coupled to different detectors. L. candidus methanolic extract was tested regarding antioxidant potential (reducing power, radical scavenging activity and lipid peroxidation inhibition). L. candidus was shown to be an interesting species in terms of nutritional value, with high content in proteins and carbohydrates, but low fat levels, with the prevalence of polyunsaturated fatty acids. Mannitol was the most abundant free sugar and β-tocopherol was the main tocopherol isoform. Other compounds detected were oxalic and fumaric acids, p-hydroxybenzoic and cinnamic acids. The methanolic extract revealed antioxidant activity and did not show hepatoxicity in porcine liver primary cells. The present study provides new information about L. candidus.
首次对野生蘑菇白绒盖牛肝菌（Leucopaxillus candidus (Bres.) Singer）进行研究，以获取其化学成分、营养价值和生物活性方面的信息。采用与不同检测器联用的色谱技术分析了游离糖、脂肪酸、生育酚、有机酸和酚酸。对白绒盖牛肝菌甲醇提取物的抗氧化潜力（还原能力、自由基清除活性和脂质过氧化抑制）进行了测试。就营养价值而言，白绒盖牛肝菌是一个有趣的物种，蛋白质和碳水化合物含量高，但脂肪含量低，多不饱和脂肪酸占优势。甘露醇是含量最丰富的游离糖，β-生育酚是主要的生育酚异构体。检测到的其他化合物有草酸和富马酸、对羟基苯甲酸和肉桂酸。甲醇提取物具有抗氧化活性，在猪肝脏原代细胞中未表现出肝毒性。本研究提供了有关白绒盖牛肝菌的新信息。
