@phdthesis{
author = "Kostić, Aleksandar Ž.",
year = "2015",
abstract = "U ovom radu ispitivane su hemijska i nutritivna svojstva polena koji su sakupilemedonosne pčele i to: palinološko poreklo uzoraka polena, sadržaji pepela, vlage,makro‐ i mikroelemenata, energetska vrednost, ukupni sadržaji proteina, ugljenihhidrata, lipida i fenola, ukupni antioksidativni kapacitet kao i pojedinačni sadržajirastvorljivih ugljenih hidrata, masnih kiselina i fenolnih jedinjenja. Osim toga,ispitano je i prisustvo plesni i aflatoksina B1, kao mikrobiološki parametarispravnosti uzoraka kao i tehno‐funkcionalnih svojstava: peniva i emulgujućasvojstva, rastvorljivost proteina i ugljenih hidrata, kapaciteti vezivanja vode i ulja.Utvrđeno je da se uzorci razlikuju po botaničkom poreklu, da je većinapolifloralnog tipa sa petnaest zastupljenih biljnih vrsta i rodova od kojih sunajzastupljeniji bili krstašice (kupusnjače) (Brassicaceae) i mahunarke (Fabaceae).Sadržaj vlage u ispitivanim uzorcima se kretao u opsegu od 4,35 do 14,35g/100g dok je sadržaj pepela bio u intervalu 1,18‐3,32 g/100g. Na osnovu sadržajaukupnih proteina (14,81‐27,25%), ugljenih hidrata (64,42‐81,84%), lipida (1,31‐6,78%) i prosečne energetske vrednosti (375 kcal) zaključeno je da bi se polen kojisu sakupile medonosne pčele mogao koristiti kao dodatak ishrani.Na osnovu sadržaja pojedinačnih rastvorljivih ugljenih hidrata utvrđeno je daje, u najvećem broju uzoraka, najzastupljeniji šećer fruktoza. Osim nje identifikovane sui glukoza, maltoza, saharoza i trehaloza. Od pojedinačnih masnih kiselina uuzorcima polena identifikovano ih je dvadeset, od čega je šest zastupljeno u svimuzorcima – C8:0, C16:0, C18:0, C18:1n‐9, C18:2n‐6 i C18:3n‐3. Na osnovu kvantitativneanalize ukupnog sadržaja fenolnih jedinjenja (25,82 ‐ 206,09 mg/100g) za većinuuzoraka se moglo reći da su sadržavali male količine fenolnih jedinjenja. U svimuzorcima identifikovana su četiri od ukupno trinaest prisutnih fenolnih jedinjenja– rutin, luteolin, galna i hlorogena kiselina. Ukupni antioksidativni kapacitetispitivanih uzoraka se kretao u opsegu od 27,46 do 138,89 mmol kg‐1 TROLOX‐a..., In this study chemical and nutritional characteristics of bee‐collected pollenhave been determined: palynological origin of samples, ash, moisture, macro andmicroelements content, as well as energetic value and total content of proteins,carbohydrates, lipids and fenolic compounds as well as total antioxidative capacity.Furthermore, contents of soluble sugars, fatty acids and phenolic compounds havebeen estimated. Presence of moulds and aflatoxin B1 has been investigated as wellas techno‐functional properties such as: of protein and carbohydrate solubility,foaming and emulsifying properties, water and oil absorption capacity.It was found that most of the samples were polyfloral with different palynologicalorigin represented by fifteen plant families or species. The most abundant familieswere Brassicaceae and Fabaceae.The moisture content was ranged from 4.35 to 14.35 g/100g, while content ofash varied in the range: 1.18 ‐ 3.32 g/100g. Based on the total protein (14.81 to27.25%), carbohydrate (64.42 to 81.84%) and lipid (1.31 to 6.78%) contents andthe average energy value (375 kcal), it was concluded that bee‐collected pollencould be used as a dietary supplement.Among soluble carbohydrates the most abundant sugar was fructose. Inaddition glucose, sucrose, maltose and trechalose were found. Twenty fatty acidswere detected in samples wherein six were found in all of the investigatedsamples‐ C8:0, C16:0, C18:0, C18:1n‐9, C18:2n‐6 i C18:3n‐3. Based on the totalcontent of phenolic compounds (25.89 ‐ 206.09 g/100g) most of the samples werecharacterized by low level. Four of the thirteen detected phenolic compounds werefound in all samples‐ rutin, luteolin, galic and chlorogenic acid. Total antioxidativecapacity was ranged from 27.46 to 138.89 mmol kg‐1 of TROLOX.On the basis of the content of macro‐ and microelements, it was concluded thatthe three most common elements in samples of pollen were potassium, calcium...",
publisher = "Универзитет у Београду, Хемијски факултет",
journal = "Универзитет у Београду",
title = "Analiza hemijskih i nutritivnih karakteristika polena koji su medonosne pčele sakupile u različitim regionima Srbije, Analysis of chemical and nutritional characteristic of bee-collected pollen from different regions of Serbia",
url = "https://hdl.handle.net/21.15107/rcub_nardus_5730"
}