Ammonia has great prospects in the context of transition to carbon-free energy. It can be used as fuel gas turbines, cells, internal combustion engines, and burned together with coal. However, industrial production ammonia is based on Haber-Bosh process, which involves use natural coal, which, this case, does not make it really carbon-free. This study proposes a method produce ammonia, environm...

A P, N dual doped reduced graphene oxide (PN-rGO) catalyst with high surface area (376.20 m2·g−1), relatively high P-doping level (1.02 at. %) and a trace amount of N (0.35 at. %) was successfully prepared using a one-step method by directly pyrolyzing a homogenous mixture of graphite oxide (GO) and diammonium hydrogen phosphate ((NH4)2HPO4) in an argon atmosphere, during which the thermal expa...

The lactoperoxidase was prepared from buffalo milk and purified using CM-Sephadex C-50 and Sephadex G-100. The activity of the enzyme was measured using 2,2'-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid) diammonium salt as a chromogenic substrate at pH 6.0. The purified protein was crystallized from 0.01 M sodium phosphate buffer (pH 8.0) with 10%(v/v) ethanol by the sitting-drop vapour-diff...

Problems were experienced at Triangle's fuel ethanol plant with extended and incomplete fermentations. Direct lactic acid residual sugars and heavy metal analyses were done on plant samples to isolate the cause of the sub-optimal fermentations. Laboratory fermentation experiments were done using Triangle yeast and nutrients. Tests were done at various pHs and temperatures to ascertain levels of...

The main motive of the study is to analyze and compare crystallographic changes using X-Ray diffraction method for zinc substituted hydroxyapatite. Materials Methods: Different types hydroxyapatite are used. Calcium nitrate tetrahydrate, chloride hexahydrate, diammonium hydrogen phosphate ammonium hydroxide solutions added they mixed with solution. ultrasonic was used carry precipitation method...

Irrational phosphorus (P) nutrient management practices often fail to match of P fertilizer type, soil transformation and crop demand, lead increased accumulation legacy P, reduced PUE, pollution, affecting production. A pot experiment incorporating types (SSP, simple superphosphate; CMP, calcium magnesium phosphate; DAP, diammonium TSP, triple APP, ammonium polyphosphate; CK, no application) e...

Background: 2,3,5,6-Tetramethylpyrazine (TMP) is a popular food flavour additive. This biologically active ingredient has additional potential dietotherapy functions, such as in cardiovascular and cerebrovascular health. Previous production methods from renewable materials suffer from low yields and efficiency which seriously hampers the scaling up of the laboratory processes. Results: We have ...