University of Thessaly, Department of Agriculture, Crop Production and Rural Environment, 38446 N. Ionia, Magnissia, Greece.
Mountain Research Centre (CIMO), ESA, Polytechnic Institute of Bragança, Campus de Santa Apolónia, 1172, 5300-253 Bragança, Portugal.
Food Chem. 2018 Apr 15;245:7-12. doi: 10.1016/j.foodchem.2017.10.078. Epub 2017 Oct 16.
Recent studies show a significant variation in antioxidant and antimicrobial properties between the various garlic genotypes mostly due to differences in chemical composition and bioactive compounds content. The aim of the present study was to evaluate antioxidant properties and antimicrobial activity of garlics collected from the main cultivation areas of Greece, as well as to correlate this activity with their total phenolics content. Genotype G5 showed the highest total phenolics content, which was significantly correlated with the lowest EC values for all the tested antioxidant activity assays. Antimicrobial activity was significant, especially against the bacteria Proteus mirabilis and Antibiotic resistant Escherichia coli. In conclusion, significant variation was observed between the studied garlic genotypes, indicating the importance of both growing conditions and genotype on bioactive properties of dry garlic bulbs. This variation could be further exploited in breeding programs in order to select elite genotypes with increased bioactive properties.
最近的研究表明，不同大蒜基因型之间的抗氧化和抗菌特性存在显著差异，主要归因于化学成分和生物活性化合物含量的差异。本研究旨在评估来自希腊主要种植区的大蒜的抗氧化特性和抗菌活性，并将其与总酚含量相关联。基因型 G5 表现出最高的总酚含量，这与所有测试的抗氧化活性测定中 EC 值最低显著相关。抗菌活性非常显著，特别是对变形杆菌和抗药性大肠杆菌。总之，在所研究的大蒜基因型之间观察到显著的差异，表明生长条件和基因型对干大蒜鳞茎的生物活性特性的重要性。这种差异可以在选育计划中进一步利用，以选择具有增加的生物活性特性的优良基因型。
