Effect of Seaweed Liquid Fertilizer on Antioxidant and Enzyme Activity of Different Vegetables Seeds

The aim of the study was to find the antioxidant activity and enzyme activity of catalase and peroxidase of vegetable plants. The results indicated that the use of seaweed liquid fertilizer can enhance the antioxidant activity of Solanum melongena L., Lycopersicon esculentum Mill., Capsicum annuum L., Brassica oleracea var. Capitata L. and Allium cepa L. The 1,1-diphenyl-2-picrylhydrazyl (DPPH) assays were used to determine the antioxidant properties of seaweeds by measuring the decrease in absorbance at 517 nm. The DPPH activity was highest in brown seaweed liquid fertilizer. This study implied that impacts on vegetable plantlets by seaweed liquid fertilizer extracted with enzymes is better in brown seaweed liquid fertilizer as compared to control.

Synthesis and antimicrobial activity of novel 3-Chloro- [1- (3,6-(Diphenyl) [1,2,4] Triazolo [3,4b] [1,3,4] Thiadiazole)] -4-(3,4-Diethoxy Phenyl- Azetidin-2-One and their derivatives.

A series of eight novel 2-Azetidinones (8a-h) have been synthesized by cyclocondensation of various Schiff bases based of ATT with chloroacetyl chloride in presences of triethylamine. Various Schiff bases were synthesized by condensation of ATT with various aryl aldehydes (7a-h). The synthesized compounds 8a-h were screened for their antibacterial activity against four microorganisms: Staphylococcus aureus (Gram positive), Bacillus subtilis (Gram positive), Psuedomonas aeruginosa (Gram negative) and Escherichia coli (Gram negative). They were found to exhibit good to moderate antibacterial activity. The structures were confirmed by elemental analysis, IR, 1H-and 13C-NMR spectral data.