Место издания:Типография Издательства СПбГУ Санкт-Петербург
Первая страница:90
Последняя страница:90
Аннотация:Influence of different molecular fractions of humic acid by brand Merk (>10, 3-10, 1-3 и <3 kDa) was studied at maximal specific speed of growth of 3 bacteria that were distinguished from natural habitats. According to molecular mass of humic acid’s fractions and concentrations, humic acid had stimulative, neutral and inhibitory effects on bacteria. There was no significant influence on Exiguobacterium sp. and Oerskovia sp. growth. It was shown that for Bacillus sp. fractions >10 and 3-10 kDa in concentration of 1 ppm had the highest stimulating ability.