Vše

Co hledáte?

Vše
Projekty
Výsledky výzkumu
Subjekty

Rychlé hledání

  • Projekty podpořené TA ČR
  • Významné projekty
  • Projekty s nejvyšší státní podporou
  • Aktuálně běžící projekty

Chytré vyhledávání

  • Takto najdu konkrétní +slovo
  • Takto z výsledků -slovo zcela vynechám
  • “Takto můžu najít celou frázi”

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

  • DOI - Digital Object Identifier

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

  • 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

  • e-ISSN

  • 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