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Background. For evaluation of the mobility of metals present in soil various approaches based on sequential extraction procedures (Tessier’s, BCR or modified BCR) have been proposed, but they are very laborious and time-consuming. Objective. The aim of this study was to develop a new fast extraction procedure for the determination of mobile fractions of copper in soil. Material and methods. The samples...
Gujarat has a coast line of approximately 1700 Km, varying in different habitat conditions. The state has two gulfs viz., gulf of Khambhat and gulf of Kachchh. Edaphic conditions of different habitats in ‘Bhal’ region of Gujarat state which falls in two districts viz. Ahmedabad and Bhavnagar district of Gujarat state. The coastal vegetation depends on the edaphic conditions of the region. The coastal...
Background. The European Union prohibits the use of chloramphenicol (CAP) as a veterinary drug in food-producing animals. Nevertheless, CAP have been detected in milk products (liquid milk and milk powder). Therefore, it is necessary to develop sensitive methods for determining CAP residues in milk powder. Objective. The aim of this study was to develop and validate a confirmatory method for determination...
Based on the amount and duration of external temperature, degree day values are determined according to whether the selected equilibrium temperature is lower or higher than the air temperature. Degree day values are calculated according to the fluctuations in ambient temperature. It can be understood whether heating or cooling systems are necessary within the calculated periods. In this study, the...
Contaminations of industrial metals into the river possess major threat to environment. Chromium is a heavy metal which has the wide applications in tannery and electroplating industries. Above the permitted level of Chromium(VI) into surface water leads to severe health hazards. Therefore, biosorption is a technology used for the sorption of heavy metal. In this present study adsorption isotherm...
Introduction. A rich and natural source of readily assimilated dietary protein together with invaluable vitamins and minerals are fish, particularly the saltwater species. The quality of any given foodstuff is determined by its nutritional value, which in turn depends on the food type and methods used for manufacture, processing and storage. Many fish products contain fewer water soluble vitamins...
In order to enhance the contribution of fig to the national economy and to raise farmers’ income level, it is necessary to encourage further cultivation of fig and direct farmers to fig production instead of alternative products. Most of the areas suitable for chestnut production are forestlands. There are orchards arranged with oak and chestnut trees with oak being predominant. Chestnut population...
A field trial was conducted to evaluate the residues of Bispyribac sodium 10 % SC on rice crop during Kharif season 2013 at Kandikai in Thiruvallur District, Tamilnadu, India. Randomized block design was followed withthree treatments forthree replicates. Bispyribac sodium 10 % SC 200 g a.i./ha, 500 g a.i./ha and control (water spray) was sprayed using hand operated Maax battery sprayer with a spray...
Rye plants were grown in a nutrient solution prepa- red according to Hoagland for 2 weeks at pH 7, next for 14 days at pH 4.5 (without Cu+2) and in the presence of 20, 50, or 100 mg dm-3 copper ions. The control plants were grown continuously at pH 7. The physicochemical surface properties of the roots were exa- mined using two adsorbates – polar (water vapour) and non-polar (nitrogen). The surface...
In Poland there are several methods used for determination of the design flood hydrographs. Among the others, the method developed by Hydroprojekt is used. According to the authors’ knowledge, this method has not been published yet. The method assumes that the design flood hydrographs are to be determined based on the real registered floods in a given gauged cross-section. The method uses the random...
W pracy zbadano wpływ takich czynników, jak prędkość schładzania/ /ogrzewania oraz sposób kalibracji aparatu DSC na dokładność oznaczeń temperatury [°C], entalpii [J·g⁻¹] oraz wysokości pików (bezwzględna wartość maksymalna strumienia cieplnego) [W·g⁻¹] w procesie topnienia/krystalizacji tłuszczu kakaowego. Stosowano następujące prędkości: 1, 2, 5, 10, 20°C·min⁻¹. W wyniku przeprowadzonych badań zaobserwowano,...
The aim of the research was to analyse the weaknesses of the pH differential method for strawberry anthocyanin determination. The work is based on practical experiments with 12 strawberry cultivars and on analysis of published papers. We used following molar absorption coefficients ( ƹ values): 26900 and 29600 M⁻¹ cm⁻¹ for cyanidin 3 glycoside (C3g) and 15600, 22400, 27300 and 36000 M⁻¹ cm⁻¹ for pelargonidin...
Fruit apricot dimensions, weight, size and shape are the most commonly measured pomological properties. The size and shape features of 13 apricot (Prunus armeniaca L.) cultivars and promising Serbian selections grown in Western Serbia were investigated using a multivariate analysis. The apricots promoted fruits wider than long in shape, except ‘Harcot’, ‘T 7’, ‘Précoce de Tyrinthe’, ‘Roksana’ and...
An algorithm for determination of threshold value in extruded products by the method of maximum increments: modi�� cation of Otsu method. There are presented the results of comparative analysis of threshold value determination in the extruded products with the use of developed new algorithm. The original and modi�� ed Otsu algorithms were compared. In calculations of porosity indices of the extrudate...
Background. A method of the classification of natural mineral and spring waters and maximum admissible concentration (MAC) levels of metals present in such types of waters are regulated by Commission Directive 2003/40/EC, Directive 2009/54/EC of the European Parliament and of the Council and Ordinance of Minister of Health of 30 March 2011 on the natural mineral waters, spring waters and potable waters...
Background. In recent years, changes to adolescent life style and nutrition are becoming increasingly apparent. One of the ways in which this can be observed, is in an unbalanced daily intake of dietary minerals, where some intakes are in excess whilst others are deficient. Normal growth and development can thereby become adversely affected. Objective. To determine daily dietary intake levels of calcium,...
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