The aim of this review was to represent a category of applied plant biostimulants and to highlight the effect of their application on morphological and phytochemical properties of medicinal plants in in vivo and in vitro conditions and their mechanism of action. Plant biostimulants, safe for both human beings and the environment, are substances or materials, except for nutrients and pesticides,...

Water is the most vital resource for the living beings to survive. India has a vast and varied inland water resource which is considered to be richest in world’s nature lakes. The physicochemical characteristic of Nellore tank has been studied for monsoon, pre-monsoon, postmonsoon in the year. From the results water body was found to be well in the permissible limit of BIS (1998, except pH, DO,...

As the century drew to a close the orthodox teaching on man's need for food could be expressed in the following manner. There were five proximate principles of foods. Three, proteins, fats and carbohydrates, were organic, and two, salts and water, were inorganic.... It will be observed that this scheme makes no mention of any such food substances as the curative antiscorbutic principle of fresh...

Microorganisms in membrane bioreactors (MBRs) play important roles on degradation of organic/inorganic substances in wastewaters, while microbial deposition/growth and microbial product accumulation on membranes potentially induce membrane fouling. Generally, there is a need to characterize membrane foulants and to determine their relations to the evolution of membrane fouling in order to ident...

series of tests of substances, organic and inorganic, he cannot fail to have acquired a good knowledge of chemistry, and what is even more important he cannot fail to have had his powers of exact observation stimulated and developed by such a course. We are also glad to see that Dr. Bedford has also included in his practical course several gravimetric and a good many volumetric estimation of th...

Contact chemoreceptors on the mouthparts and legs of the blowfly Phormia regina that normally respond to aqueous solutions of sapid substances also respond to compounds in the gaseous state. Effective vapors include organic and inorganic acids and various unrelated nonpolar compounds. In general, the acids stimulate the salt receptor. Some nonpolar compounds stimulate the salt receptor while ot...

Humic substances are a collection of colored organic acids characterized by high molecular weight and low nitrogen (N) content that are thought to be biologically recalcitrant. We examined a suite of nonaxenic estuarine phytoplankton isolates to determine their ability to take up 15N-labeled humic substances formed in the laboratory and supplied as the sole N source. All 17 estuarine and coasta...

The number of new chemicals synthesized and marketed increases exponentially. The database CAS REGISTRY at present contains more than 33 million organic and inorganic substances. However, the little information regarding the potential hazard associated with a large amount of chemicals is an old known problem in the European Union and also in the United States. This critical problem may find a s...

2. The first Hong Kong TDS aims to estimate the dietary exposure of the Hong Kong population and various population sub-groups to a range of substances and thus assess any associated health risks. The Study commenced in March 2010 and would be completed in 2014. As of December 2013, seven reports, covering “dioxins and dioxin-like polychlorinated biphenyls (PCBs)”, “inorganic arsenic”, “polybro...

Chromatography is an analytical technique employed for purification and separation of organic and inorganic substances including characterisation and quantitative measurement of compounds (table). Basically there are two types: l. Gas chromatography (GC), 2. Liquid chromatography (LC). Although discovered in 1906 by Tshett, developed in the 1950s as the GC technique where the mobile phase are g...