Objective: In order to use natural compounds in controlling plant pests and diseases, many researchers in recent years have studied the antifungal effects of essential oils and plant extracts.  The purpose of this study was to investigate the chemical composition and antifungal effects of Echium khuzestanium and marubbium anisodan extract...

In order to use natural compounds in controlling plant pests and diseases, many researchers in recent years have studied the antifungal effects of essential oils and plant extracts.  The purpose of this study was to investigate the chemical composition and antifungal effects of Echium khuzestanium and marubbium anisodan extracts. After extraction and preparation of di...

In this study we explore the strategies that undergraduate and graduate chemistry students use when engaged in classification tasks involving symbolic and microscopic (particulate) representations of different chemical reactions. We were specifically interested in characterizing the basic features to which students pay attention when classifying chemical reactions at the symbolic and microscopi...

Monosynaptic, electrical-chemical EPSPs were produced in individual motoneurons of the isolated frog spinal cord by intracellular stimulation of single primary afferents. This preparation was used to assess the relationship between the modulation of chemical synaptic transmission and presynaptic invasion. It was found that at dual-action synapses Baclofen selectively depressed chemical transmis...

Chemical imaging technology is a rapid examination technique that combines molecular spectroscopy and digital imaging, providing information on morphology, composition, structure, and concentration of a material. Among many other applications, chemical imaging offers an array of novel analytical testing methods, which limits sample preparation and provides high-quality imaging data essential in...

The effects of product and preparation variables on the in-cup chemical composition of tea extracts is of interest because the appearance and taste characteristics and the possible health effects of a tea liquor arise from the chemical components extracted from the leaf during tea preparation. A comprehensive study was therefore undertaken to determine the contributions of product and preparati...

PĘksa A., Miedzianka J. (2014): Amino acid composition of enzymatically hydrolysed potato protein preparations. Czech J. Food Sci., 32: 265–272. We determine the effects of the technology of obtaining potato protein preparation and of different variants of enzymatic hydrolysis on the chemical and amino acid compositions of the hydrolysates obtained. Potato protein concentrates obtained through ...

A Laboratory Manual for the Preparation of Chemical Reagents, Solutions and Special Indicators. ETHIOPIAN BIODIVERSITY INSTITUTE, Microbial Biodiversity Directorate. This manual includes detailed view following: Safety Precautions, Reagent Preparation, Buffer Solution Staining Indicators Dye Known Suspected List Carcinogens References.