Selenium accumulation and biotransformation in Streptococcus, Lactococcus, and Enterococcus strains

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26722861%3A_____%2F22%3AN0000014" target="_blank" >RIV/26722861:_____/22:N0000014 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60461373:22340/22:43925667 RIV/60460709:41210/22:91262

Výsledek na webu

<a href="https://doi.org/10.1016/j.jff.2022.105056" target="_blank" >https://doi.org/10.1016/j.jff.2022.105056</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jff.2022.105056" target="_blank" >10.1016/j.jff.2022.105056</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Selenium accumulation and biotransformation in Streptococcus, Lactococcus, and Enterococcus strains

Popis výsledku v původním jazyce

In the present study, we evaluated the ability of inorganic Se to accumulate and biotransform into different selenium species and Se nanoparticles (SeNPs) in seven bacteria from the Lactococcus, Streptococcus, and Enterococcus genera. The cytotoxicity of selenized strains to human adenocarcinoma Caco-2 and HT29 cells, the effect of selenium enrichment on antioxidant activity, and cell surface hydrophobicity of the tested strains were determined. When compared to that of lactococci and enterococci, increasing concentrations of sodium selenite in the cultivation media inhibited the growth of Streptococcus thermophilus strains. Thirty milligrams per liter Na2SeO3 and its higher concentrations (50 and 100 mg/L) significantly reduced the viability of Caco-2 and HT29 cells by 40–75%. Bacteria mainly produced SeNPs and selenocysteine in Se form. Our results indicate that the tested strains can accumulate and transform inorganic selenium, which makes them promising candidates for selenization and possible application in functional foods.

Název v anglickém jazyce

Selenium accumulation and biotransformation in Streptococcus, Lactococcus, and Enterococcus strains

Popis výsledku anglicky

In the present study, we evaluated the ability of inorganic Se to accumulate and biotransform into different selenium species and Se nanoparticles (SeNPs) in seven bacteria from the Lactococcus, Streptococcus, and Enterococcus genera. The cytotoxicity of selenized strains to human adenocarcinoma Caco-2 and HT29 cells, the effect of selenium enrichment on antioxidant activity, and cell surface hydrophobicity of the tested strains were determined. When compared to that of lactococci and enterococci, increasing concentrations of sodium selenite in the cultivation media inhibited the growth of Streptococcus thermophilus strains. Thirty milligrams per liter Na2SeO3 and its higher concentrations (50 and 100 mg/L) significantly reduced the viability of Caco-2 and HT29 cells by 40–75%. Bacteria mainly produced SeNPs and selenocysteine in Se form. Our results indicate that the tested strains can accumulate and transform inorganic selenium, which makes them promising candidates for selenization and possible application in functional foods.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

40201 - Animal and dairy science; (Animal biotechnology to be 4.4)

Projekt

<a href="/cs/project/LTC20014" target="_blank" >LTC20014: Research of selenium-enriched lactic acid bacteria, bifidobacteria and yeasts and influence of low-pH stress exposure on their selenium biotransformation efficiency.</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Functional Foods

ISSN

1756-4646

e-ISSN

—

Svazek periodika

95

Číslo periodika v rámci svazku

105056

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

9

Strana od-do

1–9

Kód UT WoS článku

000794237100005

EID výsledku v databázi Scopus

2-s2.0-85127682721