Pesticide concentration in three selected fish species and human health risk in the Lake Tana sub-basin, Ethiopia

Abstract

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Bacillus megaterium: Evaluation of Chemical Nature of Metabolites and Their Antioxidant and Agronomics Properties

“…A total of 75 compounds were found to be present in BC extracts and not present in CS2 extracts, as illustrated in Table 3 for analysis without derivatization, and in Table 4 for analysis with derivatization. Some of these identified compounds were strictly found in BC extracts, suggesting a probable production by B. megaterium: 10 fatty acids derivatives (23 ′ , 32 ′ , 34 ′ , 39 ′ , 42 ′ , 44 ′ , 46 ′ , 47 ′ , 36, 44), 5 linear hydrocarbons (4,12,20,24,25), 5 cyclic hydrocarbons with 3 isomers (5,6,8,9,10,11,15,18), 6 amino acids (10 ′ , 12 ′ , 15 ′ , 18 ′ , 20 ′ , 22 ′ ), 2 dipeptides (29, 47), 2 cyclic dipeptides (46, 64), 6 aromatic hydrocarbons (1,16,26,27,31,33), 2 phthalates (59, 61), 2 sugar acids with 1 isomer (9 ′ , 24 ′ , 41 ′ ), 4 polyols with 1 isomer (2 ′ , 4 ′ , 5 ′ , 6 ′ , 21 ′ ), 2 cyclitols (29 ′ , 43 ′ ) and 17 others were identified (3,7,13,14,19,21,23,32,37,43,45,48,50,62, 63, 17 ′ , 38 ′ ). tr indicates integration inferior to 0.1 × 10 6 ; "ND": not detected.…”

“…Nowadays, new tools are required for the resolution of a massive need to feed a growing world population. Improving the production and quality of food is currently problematic, remaining too dependent on antibiotics, synthetic fertilizers or pesticides [1]. The intensive use of these compounds has led to the emergence of pathogen resistance and severe negative environmental impacts and has thus become an important issue of public health and environment pollution [2][3][4].…”