PREPARATION AND STABILITY OF ORGANIC CORE-SHELL PARTICLES WITH ENCAPSULATED COMPLEX NATURAL PLANT SOURCES OF PHENOLICS, CAFFEINE AND VITAMINS
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F15%3APU136127" target="_blank" >RIV/00216305:26310/15:PU136127 - isvavai.cz</a>
Výsledek na webu
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DOI - Digital Object Identifier
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Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
PREPARATION AND STABILITY OF ORGANIC CORE-SHELL PARTICLES WITH ENCAPSULATED COMPLEX NATURAL PLANT SOURCES OF PHENOLICS, CAFFEINE AND VITAMINS
Popis výsledku v původním jazyce
Presented work is focused on possibilities of encapsulation some complex natural sources of phenolics, caffeine and vitamins in core-shell type organic micro- and nanoparticles. Encapsulation of these substances is suitable to controlled release of caffeine and for disguising of bitter taste of phenolics. Water extracts of guarana, ginseng and goji were prepared and the concentrations of phenolics, anthocyanin, caffeine and vitamin C were evaluated. Extracts were packed into liposomes and polysaccharide particles (alginate, chitosan) using encapsulator B-392P (Buchi) or manual procedures. The efficiency of encapsulation was determined by HPLC/UV-VIS (individual phenolics - rutin, morin, myricetin, luteolin; caffeine, vitamin C) and by spectrophotometry (phenolics). Stability of the particles was followed in model/real foods and in a model physiological environment. Size of prepared particles was determined by dynamic light scattering. In this work it was found that polysaccharide particles with higher activity and stability were obtained by encapsulator, while in the liposomes better results were obtained in manually prepared particles. Liposomes exhibited the smallest particle size (80 - 200 nm), the highest efficiency encapsulation, excellent stability and the best value of zeta potential (-40 mV). Polysaccharide particles prepared manually were smaller (500 - 3000 nm) and less stable than core-shell microparticles formed by encapsulator (diameter 200 and 300 mm). Prepared particles could be used to modern types of energy drinks, food supplements and also some cosmetics applications.
Název v anglickém jazyce
PREPARATION AND STABILITY OF ORGANIC CORE-SHELL PARTICLES WITH ENCAPSULATED COMPLEX NATURAL PLANT SOURCES OF PHENOLICS, CAFFEINE AND VITAMINS
Popis výsledku anglicky
Presented work is focused on possibilities of encapsulation some complex natural sources of phenolics, caffeine and vitamins in core-shell type organic micro- and nanoparticles. Encapsulation of these substances is suitable to controlled release of caffeine and for disguising of bitter taste of phenolics. Water extracts of guarana, ginseng and goji were prepared and the concentrations of phenolics, anthocyanin, caffeine and vitamin C were evaluated. Extracts were packed into liposomes and polysaccharide particles (alginate, chitosan) using encapsulator B-392P (Buchi) or manual procedures. The efficiency of encapsulation was determined by HPLC/UV-VIS (individual phenolics - rutin, morin, myricetin, luteolin; caffeine, vitamin C) and by spectrophotometry (phenolics). Stability of the particles was followed in model/real foods and in a model physiological environment. Size of prepared particles was determined by dynamic light scattering. In this work it was found that polysaccharide particles with higher activity and stability were obtained by encapsulator, while in the liposomes better results were obtained in manually prepared particles. Liposomes exhibited the smallest particle size (80 - 200 nm), the highest efficiency encapsulation, excellent stability and the best value of zeta potential (-40 mV). Polysaccharide particles prepared manually were smaller (500 - 3000 nm) and less stable than core-shell microparticles formed by encapsulator (diameter 200 and 300 mm). Prepared particles could be used to modern types of energy drinks, food supplements and also some cosmetics applications.
Klasifikace
Druh
D - Stať ve sborníku
CEP obor
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OECD FORD obor
21001 - Nano-materials (production and properties)
Návaznosti výsledku
Projekt
<a href="/cs/project/LO1211" target="_blank" >LO1211: Centrum materiálového výzkumu na FCH VUT v Brně - udržitelnost a rozvoj</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2015
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název statě ve sborníku
NANOCON 2014, 6TH INTERNATIONAL CONFERENCE
ISBN
978-80-87294-53-6
ISSN
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e-ISSN
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Počet stran výsledku
6
Strana od-do
569-574
Název nakladatele
TANGER
Místo vydání
Ostrava, Czech republic
Místo konání akce
Brno
Datum konání akce
5. 11. 2014
Typ akce podle státní příslušnosti
WRD - Celosvětová akce
Kód UT WoS článku
000350636300098