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Influences of freeze- and spray-drying vs. encapsulation with soy and whey proteins on gastrointestinal stability and antioxidant activity of Mediterranean aromatic herbs

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2020
Authors
Bilusić, Tea
Drvenica, Ivana
Kalušević, Ana
Marijanović, Zvonimir
Jerković, Igor
Muzek, Mario Nikola
Bratanić, Andre
Skroza, Danijela
Zorić, Zoran
Pedisić, Sandra
Nedović, Viktor
Jambrak, Anet Rezek
Article (Published version)
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Abstract
The aim of the present research was to study the chemical profile of volatile and non-volatile compounds in freeze- and spray-dried oregano, thyme, sage, and rosemary as well as to study the gastrointestinal stability and the biological activity of the samples after encapsulation using two proteins (soy and whey). Chemical analysis was performed by HS-SPME/GC-MS and HPLC-PDA techniques. The antioxidant activity (FRAP, DPPH and ORAC assays) and HPLC-PDA analyses were performed before and after simulated two-phase digestion process (gastric and duodenal) using human gastrointestinal enzymes. The effect of protein carriers was depended on the plant matrix and the class of compound. Soy protein is useful for the protection of thymol and carvacrol content in thyme and the increase of the antioxidant activity of sage. Whey protein is useful for flavanols stability in all studied herbs before and after the duodenal digestive phase.
Keywords:
Antioxidant activity / aromatic herbs / encapsulation / freeze-drying / in vitrodigestion / spray-drying
Source:
International Journal of Food Science and Technology, 2020
Publisher:
  • Wiley, Hoboken
Funding / projects:
  • Croatian Science Foundation [IP-2016-06-1913]

DOI: 10.1111/ijfs.14774

ISSN: 0950-5423

WoS: 000567432500001

Scopus: 2-s2.0-85090459235
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URI
http://aspace.agrif.bg.ac.rs/handle/123456789/5309
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Poljoprivredni fakultet

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