Antimicrobial and antioxidative potential of free and immobilised cellobiose dehydrogenase isolated from wood degrading fungi
PBN-AR
Instytucja
Wydział Biologii i Biotechnologii (Uniwersytet Marii Curie-Skłodowskiej w Lublinie)
Informacje podstawowe
Główny język publikacji
angielski
Czasopismo
Food & Function
ISSN
2042-6496
EISSN
2042-650X
Wydawca
ROYAL SOC CHEMISTRY
DOI
URL
Rok publikacji
2019
Numer zeszytu
12
Strony od-do
875–886
Numer tomu
123
Link do pełnego tekstu
Identyfikator DOI
Liczba arkuszy
Słowa kluczowe
angielski
Alginate
Antibacterial properties
Immobilisation
Lactobionic acid
Scavenging effect
Open access
Tryb otwartego dostępu
Otwarte repozytorium
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Wersja opublikowana
Licencja otwartego dostępu
Creative Commons — Uznanie autorstwa-Niekomercyjne-Bez utworów zależnych
Czas opublikowania w otwartym dostępie
Razem z publikacją
Data udostępnienia w sposób otwarty
2019-09-24
Streszczenia
Język
angielski
Treść
Cellobiose dehydrogenase (CDH, EC 1.1.99.18) is a glycoprotein having many biotechnological applications. In the present study, CDHs isolated from Phlebia lindtneri (PlCDH), Phanerochaete chrysosporium (PchCDH), Cerrena unicolor (CuCDH), and Pycnoporus sanguineus (PsCDH) were studied the first time for their ability to generate antioxidant and antimicrobial agents. The aim of the research was to evaluate the antioxidant and antimicrobial activity of systems composed of four CDHs and lactose or cellobiose as a reaction substrate. The free radical scavenging effect of free and immobilised enzymes was evaluated using the DPPH method. The lowest values of EC50 (10.04 ± 0.75 /ml) was noted for PlCDH/lactose and for PlCDH/cellobiose (12.06 ± 1.35 /ml). The EC50value reached 12.6 ± 1.51 /ml in the case of PsCDH/lactose and 15.96 ± 1.35 for PsCDH. The CDH preparations were also effectively immobilised in alginate (the immobilisation efficiency expressed as a protein yield ranged from 61.6 to 100 %). The operational stability expressed as a scavenging effect showed the possibility of using the alginate beads 4 times. Both the free and immobilised CDHs as well as the CDH/substrate were tested against Gram-negative Escherichia coli ATCC 25922, Pseudomonas aeruginosa ATCC 27853, and Gram-positive Staphylococcus aureus ATCC 25923 bacteria. All samples, except PlCDH, were potentially effective in suppression of bacterial growth. The highest percentage of inhibition (100 %) was obtained for S. aureus bacteria using PsCDH and PchCDH with lactose as a substrate, whereas a slightly lesser effect was observed for E. coli and P. aeruginosa bacterial cells, i.e. 64.1 % and 86.5 % (PsCDH) and 94.1 % and 41.4 % (PchCDH), respectively. Furthermore, the concentrations of the reaction products (aldonic acids and hydrogen peroxide) were quantified and the surface morphology of the alginate beads was analysed using SEM visualisation.
Inne
System-identifier
PX-5dbdb70ad5de60cbefec93fa
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