Adsorption layer structure at soil mineral/biopolymer/supporting electrolyte interface – The impact on solid aggregation
PBN-AR
Instytucja
Instytut Agrofizyki im. Bohdana Dobrzańskiego Polskiej Akademii Nauk
Informacje podstawowe
Główny język publikacji
angielski
Czasopismo
JOURNAL OF MOLECULAR LIQUIDS
ISSN
0167-7322
EISSN
Wydawca
ELSEVIER SCIENCE BV
DOI
URL
Rok publikacji
2019
Numer zeszytu
284
Strony od-do
117-123
Numer tomu
Link do pełnego tekstu
Identyfikator DOI
Liczba arkuszy
Autorzy
(liczba autorów: 2)
Pozostali autorzy
+ 1
Autorzy przekładu
(liczba autorów przekładu: 0)
Słowa kluczowe
angielski
Protein
Exopolysaccharide
Biopolymer conformation
System turbidity
Zeta potential
Streszczenia
Język
angielski
Treść
This paper focused on the protein and polysaccharide adsorption mechanism on the surface of common soil mineral – silica (SiO2), as well as the biopolymer adsorption effect on the solid aggregation. For the experiments, the proteins of various internal stability were selected, i.e. bovine serum albumin (BSA), ovalbumin (OVA) and lysozyme (LSZ). Moreover, the study involved exopolysaccharide (EPS) synthesized by soil bacteria Sinorhizobium meliloti. The adsorption layer structure on silica surface and the solid aggregation tendency in the biopolymer presence were established and explained based on the turbidimetric, adsorption and zeta potential measurements. The measured biopolymer adsorbed amounts, biopolymer conformation on the SiO2 surface and solid aggregation were strongly dependent on the pH conditions. The stimulating effect on SiO2 aggregate formation was stated at pH 4.6 for BSA, OVA and LSZ, whereas at pH 7.6 – for LSZ and EPS. The strongest impact was noticed at pH 7.6 in the lysozyme presence (the TSI value increased by 40 units). The presented results can contribute to a better understanding of mineral-organic associate formation under selected soil conditions. Moreover, they may be helpful in developing innovative substances limiting destructive erosion effect.
Inne
System-identifier
PX-5ca1de44d5deffe2bb74cc0a
CrossrefMetadata from Crossref logo
Cytowania
Liczba prac cytujących tę pracę
Brak danych
Referencje
Liczba prac cytowanych przez tę pracę
Brak danych