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Effects of different carrier materials on physicochemical properties of microencapsulated grape skin extract

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2017
2874.pdf (902.9Kb)
Authors
Kalusević, Ana
Lević, Steva
Čalija, Bojan
Milić, Jela
Pavlović, Vladimir
Bugarski, Branko
Nedović, Viktor
Article (Published version)
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Abstract
The goal of this study was to investigate the characteristics of grape skin extract (GSE) spray dried with different carriers: maltodextrin (MD), gum Arabic (GA) and skim milk powder (SMP). The grape skin extract was obtained from winery by-product of red grape variety Prokupac (Vitis vinifera L.). The morphology of the powders, their thermal, chemical and physical properties (water activity, bulk and tapped densities, solubility), as well as release studies in different pH conditions were analyzed. Total anthocyanin content and total phenolic content were determined by spectrophotometric methods. MD and GA-based microparticles were non-porous and spherical, while SMP-based ones were irregularly shaped. The process of spray drying Prokupac GSE using these three carriers produced powders with low water activity (0.24-0.28), good powder characteristics, high yields, and solubility higher than 90%. The obtained dissolution/release profiles indicated prolonged release of anthocyanins and p...henolic compounds in different mediums, especially from GSE/GA microparticles. These results have shown that grape skin as the main by-product of wine production could be used as a source of natural colorants and bioactive compounds, and microencapsulation as a promising technique for the protection of these compounds, their stabilization in longer periods and prolonged release.

Keywords:
Grape skin / Spray drying / Prokupac / Powder / Anthocyanins / Microparticles
Source:
Journal of Food Science and Technology-Mysore, 2017, 54, 11, 3411-3420
Publisher:
  • Springer India, New Delhi
Projects:
  • Novel encapsulation and enzyme technologies for designing of new biocatalysts and biologically active compounds targeting enhancement of food quality, safety and competitiveness (RS-46010)

DOI: 10.1007/s13197-017-2790-6

ISSN: 0022-1155

PubMed: 29051636

WoS: 000412500400005

Scopus: 2-s2.0-85029428060
[ Google Scholar ]
17
15
URI
http://farfar.pharmacy.bg.ac.rs/handle/123456789/2876
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  • Radovi istraživača / Researchers’ publications
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Pharmacy

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