Mandim Filipa, Dias Maria Inês, Pinela José, Barracosa Paulo, Ivanov Marija, Stojković Dejan, Soković Marina, Santos-Buelga Celestino, Barros Lillian, Ferreira Isabel C F R
Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal; Grupo de Investigación en Polifenoles (GIP-USAL), Facultad de Farmacia, Universidad de Salamanca, Campus Miguel de Unamuno s/n, 37007 Salamanca, Spain.
Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal.
Food Chem. 2020 Apr 16;323:126838. doi: 10.1016/j.foodchem.2020.126838.
Cardoon is a multi-purpose crop for several industries. In this study, cardoon seeds were separated according to the viability and characterized for their chemical composition and bioactivities. Viable seeds contained higher levels of α-tocopherol (6.7 mg/100 g), lipids (23.11 g/100 g, manly oleic and linoleic acids), and free sugars (5.4 g/100 g) than the unviable ones. The hydroethanolic extract of viable seeds presented a higher concentration of phenolic compounds, namely 5-O-caffeoylquinic (8.0 mg/g) and 3,5-O-dicaffeoylquinic (43.9 mg/g) acids, and greater in vitro antioxidant activity. Both extracts showed antibacterial properties, but the best results were achieved with unviable seeds. The extracts had similar antifungal activity but did not reveal anti-inflammatory capacity or cytotoxicity to the tested cell lines. Therefore, while viable seeds contained antioxidant phytochemicals and an energy and carbon source for germination, unavailable seeds stood out for their potential to be used in the development of bio-based antibacterial ingredients.
刺菜蓟是一种适用于多个行业的多功能作物。在本研究中，根据活力对刺菜蓟种子进行了分离，并对其化学成分和生物活性进行了表征。与无活力种子相比，有活力的种子含有更高水平的α-生育酚（6.7毫克/100克）、脂质（23.11克/100克，主要为油酸和亚油酸）和游离糖（5.4克/100克）。有活力种子的乙醇水提取物中酚类化合物的浓度更高，即5-O-咖啡酰奎尼酸（8.0毫克/克）和3,5-O-二咖啡酰奎尼酸（43.9毫克/克），且体外抗氧化活性更强。两种提取物均显示出抗菌特性，但无活力种子的提取物效果最佳。提取物具有相似的抗真菌活性，但未显示出对受试细胞系的抗炎能力或细胞毒性。因此，虽然有活力的种子含有抗氧化植物化学物质以及用于发芽的能量和碳源，但无活力种子在用于开发生物基抗菌成分方面具有潜力。
