دورية أكاديمية
Effect of different D-amino acids on biofilm formation of mixed microorganisms
| العنوان: | Effect of different D-amino acids on biofilm formation of mixed microorganisms |
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| المؤلفون: | Xinying Su, Xin Cheng, Yu Wang, Jintao Luo |
| المصدر: | Water Science and Technology, Vol 85, Iss 1, Pp 116-124 (2022) |
| بيانات النشر: | IWA Publishing, 2022. |
| سنة النشر: | 2022 |
| المجموعة: | LCC:Environmental technology. Sanitary engineering |
| مصطلحات موضوعية: | adhesion and desorption, biofilm, d-amino acids, extracellular polymeric substance (eps), mixed microorganisms, Environmental technology. Sanitary engineering, TD1-1066 |
| الوصف: | This study aimed to determine the effects of D-tyrosine, D-aspartic acid, D-tryptophan and D-leucine on biofilm formation of mixed microorganisms. Results showed that, in the attachment stage, D-amino acids caused significant reduction in adhesion efficiency of mixed microorganisms to the membrane surface. Moreover, D-amino acids have a promoting effect on the reversible adhesion of mixed microorganisms. The addition of D-amino acid generally inhibited the biofilm biomass, of which D-tyrosine has the best inhibition effect. With the effect of D-tyrosine, D-aspartic acid, D-tryptophan and D-leucine, the protein in extracellular polymeric substance (EPS) decreased by 8.21%, 7.65%, 3.51% and 11.31%, respectively. The carbohydrates in EPS decreased by 29.53%, 21.44%, 14.60% and 10.54%, respectively. The results of excitation-emission matrix spectra (EEMs) suggested that the structural properties of the tyrosine-like proteins, tryptophan-like protein and humic-like acid might have changed by the D-amino acids. HIGHLIGHTS Biofilm formation of microorganisms with 24 h D-amino acids exposure were discussed.; D-amino acids reduced adhesion efficiency and increased desorption efficiency.; The biofilm biomass decreased with the addition of D-amino acids.; D-amino acids inhibited the secretion of carbohydrates and protein in EPS.; |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 0273-1223 1996-9732 |
| Relation: | http://wst.iwaponline.com/content/85/1/116; https://doaj.org/toc/0273-1223; https://doaj.org/toc/1996-9732 |
| DOI: | 10.2166/wst.2021.623 |
| URL الوصول: | https://doaj.org/article/bc95a5b97a654e79a98e691164466ca9 |
| رقم الأكسشن: | edsdoj.bc95a5b97a654e79a98e691164466ca9 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 02731223 19969732 |
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| DOI: | 10.2166/wst.2021.623 |