Halyna Antonyak | Ivan Franko National University of Lviv (original) (raw)

Halyna Antonyak

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Papers by Halyna Antonyak

Науковий вісник Львівського національного університету ветеринарної медицини та біотехнологій імені С.З. Ґжицького, 2011

Bìologìčnì studìï, Jul 6, 2022

Scientific Bulletin of UNFU, Oct 27, 2016

Bìologìčnì studìï, Sep 29, 2021

Molecules

The current review provides an up-to-date analysis of scientific data on astaxanthin (ASX) source... more The current review provides an up-to-date analysis of scientific data on astaxanthin (ASX) sources and experimental studies on its health benefits as a potent antioxidant in the aging process. ASX is a liposoluble carotenoid nutrient and reddish-orange pigment, naturally synthesized by numerous microalgae, yeasts, and bacteria as secondary metabolites. Provides a reddish hue to redfish and shellfish flesh that feed on ASX-producing microorganisms. The microalga Haematococcus pluvialis is the most important source for its industrial bioproduction. Due to its strong antioxidant properties, numerous investigations reported that natural ASX is a more significant antioxidant agent than other antioxidants, such as vitamin C, vitamin E, and β-carotene. Furthermore, several data show that ASX possesses important nutraceutical applications and health benefits, especially in healthy aging processes. However, further studies are needed for a deeper understanding of the potential mechanisms thr...

Ecological Sciences, 2020

Visnyk of Lviv University. Biological series, 2020

The study was aimed at investigating the effect of traffic load on the accumulation of heavy meta... more The study was aimed at investigating the effect of traffic load on the accumulation of heavy metals (Cd, Cr, Cu, Fe, Mn, Ni, Pb and Zn) by moss gametophytes (Brachythecium rutabulum and Pylaisia polyantha) and aquatic macrophyte Lemna minor in the territory of the city of Lviv (Ukraine). In the course of the study, five sites were selected: site 1 in the territory of the Stryiskyi Park, which was used as a control one, and sites 2–5, in which the traffic intensity was analyzed and plant samples were collected. Sites 2 and 3 were selected in the middle and end parts of Stryiska Street, respectively, site 4 was located near the junction of Lychakivska and Pasichna streets, and site 5 was chosen in the immediate vicinity of Khortytska Street. Gametophytes of mosses B. rutabulum and P. polyantha were collected at sites 1–4 and analyzed for metals content; two ponds were selected at sites 2 and 5, respectively, and metal concentrations were analyzed in water and in the samples of L. mino...