Biological indicators of heavy metal in water and soil

The land and water pollution is very frequently encountered. The Black Smith Institute of New York comes out that there are the most polluted places in the world. Hierarchy criteria for creating the rank with the most polluted places were: the number of the people affected the toxicity of the agents and the evidence regarding the health problems caused by pollution in a certain area. The objective of this work is to identify points of view regarding heavy metal pollution as well as providing details on environmental technologies on the rehabilitation of contaminated sites, like GEOLIFE technology. We offered some examples about plants that could be used as bioindicators for soil pollution and about the consequences of the pollution of marine ecosystems by heavy metals, from the Black Sea Coast. The treatment of the contaminated water with ecological product PETROLSYNTH generates rapid decomposition of the existent contaminants, the removal of the existent materials, the appearance of vegetal algae immediately after the treatment, immediate application of the treatment, low costs in order to apply the treatment

Ocimum basilicum L.: presence, influence and evolution in human concerns ever

Ocimum L. genus includes about 160 species and varieties, and one of the most popular is Ocimum basilicum L. Cultivated for over 1000 years, common basil is a valuable aromatic and medicinal plant, widely used both in traditional and in scientific medicine, in the perfume and food industry, in cosmetics, organic farming, landscaping and the plant product has profound religious significance, serving as an object of worship. This paper aims to present in a synthetic manner the most important implications of the species Ocimum basilicum L. in human preoccupations ever, highlighting the potential of its use in various fields. By choosing as a research method based on the observation and study of literature, an overview will highlight its main aspects concerning origin, history and the spreading area, the organ used, chemical composition, biological features, requirements for climate and soil, therapeutic actions and uses. Finally, the authors propose the diversification of usability of the studied species, by opening new approach perspectives for the future studies

Effect of Different Winemaking Conditions on Organic Acids Compounds of White Wines

Organic acids represent naturally occurring compounds that are found in many types of food and beverages, with important functions in defining products’ final quality. Their proportions in wine are dependent on grape composition and winemaking conditions (temperature, pH levels, oxygen, and carbon dioxide concentration). Therefore, this article studied the influence of different fermentation conditions (200 hL tanks vs. 50 L glass demijohns) and various yeasts on the evolution of the main organic acids during alcoholic fermentation of “Aligoté” wines. The fermentation lasted 22 days and samples were collected daily. Laboratory analyses were quantified according to the International Organization of Vine and Wine recommendations. High-performance liquid chromatography for the identification and quantification of organic acids was used. The data showed the important effect of winemaking conditions on sugar consumption, density or acidity values, and sensory characteristics. Significant differences in organic acid concentrations (especially for tartaric acid) were obtained for all variants, depending on the fermentation conditions, inoculated yeast and the sampling moment. The quantities of most of the identified organic acids were generally significantly increased when glass vessels were used, compared to those fermented in tanks. Most organic acids concentrations were favored by lower pH and showed higher values at lower temperatures

Research on the Identification of Some Optimal Threshing and Separation Regimes in the Axial Flow Apparatus

Starting from the influencing parameters of threshing and separation and implicit seed losses that occur within this process, this paper searched for and identified the optimal threshing regimes to minimize losses depending on the process parameters. The evacuation losses (pev) depend on threshing rotor speed (n) and implicit rotor peripheral speed (vp), material feed speed (va), the space between the rotor and counter-rotor (δ), material feed flow (Q), material density (ρ), and the length of the threshing apparatus (L). As the parameters ρ and L are constant, the variation of losses in relation to each of the arguments was followed: vp, Q, ρ, and va, respectively, for the minimization of losses by the variation of the loss function by two arguments each (represented graphically); the four arguments targeted being: vp, va, ρ, and Q. Using these input parameters, it was possible to determine the optimal threshing regimes for the variation of losses in relation to the rotor peripheral speed, the feed flow, the space between the rotor and the counter-rotor, and the feed speed, so as to obtain a seed separation percentage (Ss) as close as possible to 100% (and implicitly the smallest threshing losses—towards zero) in relation to these parameters