Biopolymer of Dictyosphaerium chlorelloides chemical characterization and biological effects

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985939%3A_____%2F18%3A00490105" target="_blank" >RIV/67985939:_____/18:00490105 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.ijbiomac.2018.03.052" target="_blank" >http://dx.doi.org/10.1016/j.ijbiomac.2018.03.052</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ijbiomac.2018.03.052" target="_blank" >10.1016/j.ijbiomac.2018.03.052</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Biopolymer of Dictyosphaerium chlorelloides chemical characterization and biological effects

Popis výsledku v původním jazyce

Some microalgae are producers of high-value phytochemicals of interest for industrial applications. Cultivation of Dictyosphaerium chlorelloides microalgae yielded about 1 g/L of a viscous exobiopolymer with a high molecular weight (M-p, = 9.6 x 10(5) g/mol). Its proteoglycan character was confirmed by the presence of proteins and carbohydrates. Dominant sugars of the biopolymer were galactose and its methyl-derivatives (similar to 42 wt%), rhamnose (18 wt%), mannose (14 wt%) and unidentified methyl-hexoses (12 wt%). Besides, glucose and 3-0-methyl derivative (8 wt%), xylose and 4-0-methyl-derivative (4 wt%), and arabinose (2 wt%) were found. Methylation analysis indicated a complex chemical structure. Immunobiological studies revealed the effective anti-proliferative capacity of the biopolymer in vitro in both cancer and non-cancer cell lines. Based on in vitro exposition using a reconstructed 3-D tissue model, a good bioavailability and a low toxicity of the biopolymer have been found. Exposition of RAW 264.7 macrophages to the biopolymer resulted into significant immunostimulation of pro and anti-inflammatory cytokines, and decreased free radical cell release.

Název v anglickém jazyce

Biopolymer of Dictyosphaerium chlorelloides chemical characterization and biological effects

Popis výsledku anglicky

Some microalgae are producers of high-value phytochemicals of interest for industrial applications. Cultivation of Dictyosphaerium chlorelloides microalgae yielded about 1 g/L of a viscous exobiopolymer with a high molecular weight (M-p, = 9.6 x 10(5) g/mol). Its proteoglycan character was confirmed by the presence of proteins and carbohydrates. Dominant sugars of the biopolymer were galactose and its methyl-derivatives (similar to 42 wt%), rhamnose (18 wt%), mannose (14 wt%) and unidentified methyl-hexoses (12 wt%). Besides, glucose and 3-0-methyl derivative (8 wt%), xylose and 4-0-methyl-derivative (4 wt%), and arabinose (2 wt%) were found. Methylation analysis indicated a complex chemical structure. Immunobiological studies revealed the effective anti-proliferative capacity of the biopolymer in vitro in both cancer and non-cancer cell lines. Based on in vitro exposition using a reconstructed 3-D tissue model, a good bioavailability and a low toxicity of the biopolymer have been found. Exposition of RAW 264.7 macrophages to the biopolymer resulted into significant immunostimulation of pro and anti-inflammatory cytokines, and decreased free radical cell release.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10404 - Polymer science

Projekt

<a href="/cs/project/TE01020080" target="_blank" >TE01020080: Centrum kompetence pro výzkum biorafinací</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název periodika

International Journal of Biological Macromolecules

ISSN

0141-8130

e-ISSN

—

Svazek periodika

113

Číslo periodika v rámci svazku

JUL 1 2018

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

10

Strana od-do

1248-1257

Kód UT WoS článku

000432503100142

EID výsledku v databázi Scopus

2-s2.0-85044147188