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1.
Environ Sci Pollut Res Int ; 25(14): 14148-14157, 2018 May.
Article in English | MEDLINE | ID: mdl-29524170

ABSTRACT

Honey is a natural substance produced by honey bees (the genus Apis) enjoyed by people due to its unique nutritional and medicinal properties. The aim of this study was to determine the physicochemical parameters (moisture, ash, water-insoluble content, reducing sugars, sucrose, free acidity, diastase activity, hydroxymethylfurfural, and electrical conductivity) and microbiological status (total number of aerobic mesophilic bacteria, total number of sulfite-reducing clostridia, the presence of Salmonella spp., total numbers of fungi and yeasts and the presence of Clostridium botulinum) in honey (honeydew, blossom, sunflower, acacia, and linden) produced in an urban environment in Serbia. We analyzed 19 apiary samples of honey, collected during the 2011 harvesting season, by using recommendation methods. Physicochemical parameters of the examined honey produced in the urban environment indicated the honeys were of acceptable quality. Bacillus spp. were detected in four honeys, yeasts were detected in three honeys, and Clostridium botulinum type E was detected in one honey using PCR. The current study also showed the presence of diverse honey varieties in Serbia.


Subject(s)
Bees , Dietary Sucrose/analysis , Food Microbiology/standards , Furaldehyde/analogs & derivatives , Honey , Animals , Bacillus/isolation & purification , Cities , Clostridium/isolation & purification , Fungi/isolation & purification , Furaldehyde/analysis , Honey/analysis , Honey/microbiology , Honey/standards , Salmonella/isolation & purification , Serbia , Water/analysis
2.
Environ Sci Pollut Res Int ; 24(25): 20149-20159, 2017 Sep.
Article in English | MEDLINE | ID: mdl-28497328

ABSTRACT

Water scarcity, especially in the hydrologically critical part of the year, is a problem often present in many cities and regions, particularly in arid and sub-arid areas. Climate change and human water demand compound the problem. This paper discusses a climate change adaptation measure-the possibility of karst spring overexploitation, where there is a siphon-shaped cavity inside the mountain. The pilot area is near the city of Nis, where a decreasing precipitation trend has already been observed and is expected to continue in the future. The paper also presents some basic information related to the pilot area and undertaken investigations. The project, successfully implemented in 2004, has provided the city of Nis with an additional amount of 200 l/s of spring water during the most critical part of the year.


Subject(s)
Conservation of Water Resources , Droughts , Groundwater , Climate Change , Desert Climate , Hydrology , Models, Theoretical , Serbia , Water Resources/supply & distribution
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