Effects of SODIUM PENTABORATE (cas 12007-92-0) pentahydrate exposure on Chlorella vulgaris growth, chlorophyll content, and enzyme activities

Add time:07/24/2019    Source:sciencedirect.com

SODIUM PENTABORATE (cas 12007-92-0) pentahydrate (SPP) is a rare mineral. In this study, SPP was synthesized from boric acid and borax through low-temperature crystallization, and its effects on the growth of the alga, Chlorella vulgaris (C. vulgaris) were assessed. The newly synthesized SPP was characterized by chemical analysis, X-ray diffraction, Fourier-transform infrared spectroscopy, Raman spectroscopy, thermogravimetric analysis, and differential thermal analysis. The changes in C. vulgaris growth, chlorophyll content, and enzyme activities upon exposure to SPP for 168 h were evaluated. Results showed that SPP treatment was detrimental to C. vulgaris growth during the first 24–120 h of exposure. The harmful effects, however, diminished over time (168 h), even at an effective medium concentration of 226.37 mg B L−1 (the concentration of boron applied per liter of culture medium). A similar trend was observed for chlorophyll content (chlorophyll a and b) and indicated that the photosynthesis of C. vulgaris was not affected and that high levels of SPP may even promote chlorophyll synthesis. Superoxide dismutase and catalase activities of C. vulgaris increased during 24–120 h exposure to SPP, but these activities gradually decreased as culture time progressed. In other words, the initial detrimental effects of synthetic SPP on C. vulgaris were temporary and reversible. This research provides a scientific basis for applications of SPP in the environment.

We also recommend Trading Suppliers and Manufacturers of SODIUM PENTABORATE (cas 12007-92-0). Pls Click Website Link as below: cas 12007-92-0 suppliers

Prev:Nucleation kinetics, growth, and optical properties of Potassium pentaborate single crystals
Next:Growth and characterization of SODIUM PENTABORATE (cas 12007-92-0) [Na(H4B5O10)] single crystals)