Characterization and Quantification of Phenolic Compounds from Leaf of Agarista salicifolia

Agarista salicifolia is the wild tree and has been used as important medicinal plants in South Ethiopia since a long time ago. The aim of this work was to carry out a chemical analysis focusing on secondary metabolites, particularly phenolic compounds, which have several roles in the plant physiological processes and have demonstrated significant capacity in the prevention of human health diseases.

Phenolic acids, flavonols, flavan-3-ols, and dihydrochalcones were characterized and quantified using ultra high-performance liquid chromatography coupled with diode array and electrospray ionization mass spectrometric detection (LC-MS), FTIR, and UV-Visible spectroscopy techniques.

After extraction with ethanol, compounds were characterized and quantified based on retention time, molecular ions, and the comparison with reference compounds.

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Bio-based Polymeric Materials from Epoxidized Triglyceride and Rosin Derivatives

In this study, bio-based polymeric materials have been developed from plant oil and rosin derivative. An acid-catalyzed curing of epoxidized soybean oil (ESO) in the presence of rosin derivative produced the transparent bio-based materials.

The resulting polyESO/rosin derivatives exhibited excellent flexiblity. Dynamic viscoelasticity analysis presented the formation of the homogeneous structure of ESO polymer and rosin components. The incorporation of the rosin components improved the thermal properties and increased elongation at break.

Furthermore, the present materials showed high adhesion property. The development of the bio-based materials from inexpensive renewable resources, plant oil and rosins, is expected to contribute to global sustainability systems.

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Raman Characterization of Phenyl-Derivatives: From Primary Amine to Diazonium Salts

Aryl-diazonium derivatives (ADD) are a class of highly useful reaction intermediates, or reagents. Their salts are generally obtained from the diazotization of aromatic amines in the presence of tetrafluoroboric acid, hexafluorophosphate or hexafluoroantimonate.

Aryl-diazonium salts are widely used in organic chemistry as reactants for different syntheses. For instance, the process of nitrogen elimination from diazonium cations is a fundamental stage of the Meerwein and Sandmeyer reactions.

The rise in popularity of aryl-diazonium salts has further resulted from their efficiency in surface functionalization, where covalently attached coatings on (semi)-conducting materials bear a wide range of functional groups.

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The Structural Study of [2-Cl-C6H4C(O)NH] P(O)[NHC6H4-4-CH3]2

A new phosphoric triamide with the formula [2-Cl-C6H4C(O)NH]P(O)[NHC6H4-4- CH3]2 has been investigated by spectroscopic methods and X-ray crystallography. This compound crystallizes in the monoclinicsystem, with P21/c space group.

 [2-Cl-C6H4C(O)NH] P(O)[NHC6H4-4-CH3]2

In this molecule, the P atom has a distorted tetrahedral environment. The N atoms bonded to P atom have mainly sp2 character. In the crystal, the molecules are aggregated through NCP―H…O═P and NP―H…O═C hydrogen bonds in a linear arrangement along the b axis, by forming a sequence of alternate R22 (8) and R22 (12) motifs (NCP is the nitrogen atom of C(O)NHP(O) segment and the NP stands the two other nitrogen atoms bonded to the P atom). Furthermore, C―H…O and C―H…Cl intermolecular interactions complete a 3D structure. Phosphoramides constitute a well-studied sub-class of phosphorus (V)-nitrogen compounds due to the biological activity of some derivatives and growing applications in pharmacological and agricultural industry.Read more>>>>>>>>>

Effect of Oat Forthe Treatment of Hypertriglyceridemia; Randomized Controlled Trial

Dyslipidemia has become a growing public health problem. The overall prevalence of hypercholesterolemiain Mexico is high (23.6%), however there are studies in health institutions in which the prevalence is higher —between 35 and 48%.

Oat Forthe Treatment 

Where we can see part of the magnitude of the problem, which increases if other factors associated with overweight, hypertension, diabetes and smoking are added. As a general rule, it is considered that hyperlipoproteinemia exists when plasma cholesterol is > 5.2 mmol/L (200 mg/dL) or the level of triglycerides exceeds 2.2 mmol/L (150 mg/dL). It has been found that controlling the levels of serum lipid stabilizes the atheromatous plaque inducing regression of the lesion and slowing down the development of vascular obstruction, with beneficial effects in reducing vascular events as well as related mortality; namely, persistent vascular lesions match with sustained high triglycerides levels . Read more>>>>>>

Cropping Practice and Makeup Shortfall of Pulse Production with Reduced Emission of Green House Gas-Nitrous Oxide

Intercropping is a known and adopted practice in agriculture world over. However, there is no specific set rule for operating it and hence so are the experimental results.

The objective of this study was to innovate a set principle of inter cropping for universal applications in agriculture. The study presents yield data from earlier researches and analyses to innovate the principle.

It applies the principle of nitrogen cycle, sulphur cycle, environmental chemistry, alellopathy, spatial and temporal considerations, physics and chemistry, microbiology, environmental science and devised principle of the inter cropping. The principle is that in inter cropping a legume crop is must as an associate crop.

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Separation and Activity against Drug-resistant Bacteria of Tetrandrine and Fangchinoline in Lipophilic Akaloids from Stephania tetrandra

Tetrandrine and fangchinoline were separate in total alkaloids from Stephania tetrandra and the activities against drug-resistant bacteria in-vitro were investigated. Preparative medium pressure liquid chromatography and semi-preparative highperformance liquid chromatography were applied to separate and purify tetrandrine and fangchinoline.

Tetrandrine and Fangchinoline

Agar dilution method was used to test the anti-drug–resistant bacteria activity and determine the minimum inhibitory concentration (MIC) of MRSA 13366 and ESBLproducing Escherichia coli 13025. Tetrandrine and fangchinoline were identified by TLC and NMR spectra; The viable count absorbance regression equations were Y=9.5715x-0.3439(R2=0.9907) for MRSA 13366 and Y=8.6245x-0.1802(R2=0.9972) for ESBL-producing Escherichia coli 13025; MICs of tetrandrine were 80 μg/ml for MRSA 13366 and 160 μg/ml for ESBL-producin E. coli 13025; MICs of fangchinoline were 160 μg/ml for MRSA and 320 μg/ml for ESBL-producing Escherichia coli 13025. Read more>>>>>