Enzymatic demulsification of long-chain alkanoylcholine-based oil-in-water emulsions and microemulsions

Long-chain alkanoylcholines (LCAC) are potential candidates to limit viruses’ transmission and suitable substrates of butyrylcholinesterase (BChE) to be hydrolyzed. Thus, BChE-catalyzed LCAC hydrolysis is expected to be a safer and greener demulsification strategy in demulsifying LCAC-based emulsion...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Colloids and surfaces. A, Physicochemical and engineering aspects Physicochemical and engineering aspects, 2022-12, Vol.655, p.130283, Article 130283
Hauptverfasser: Xu, Yanjie, Chen, Hui, Liu, Xuefeng, Sun, Lianlian, Fang, Yinjun
Format: Artikel
Sprache:eng
Schlagworte:
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:Long-chain alkanoylcholines (LCAC) are potential candidates to limit viruses’ transmission and suitable substrates of butyrylcholinesterase (BChE) to be hydrolyzed. Thus, BChE-catalyzed LCAC hydrolysis is expected to be a safer and greener demulsification strategy in demulsifying LCAC-based emulsions and/or microemulsions. Myristoylcholine bromide (MCB)-based oil-in-water (O/W) emulsions with different oils, from hydrocarbon nonpolar oil (octane and D80) to ester-containing polar oil (jojoba oil and edible oil) as well as the complex oily mixture (crude oil), were constructed. MCB-based microemulsions were constructed by pseudo-ternary phase diagram method. The BChE-catalyzed hydrolysis of MCB was monitored by using of two-phase titration. MCB-based O/W type emulsions and microemulsion can be actively demulsified by using of BChE under mild conditions of pH = 7.4 and 37 °C. No lethal adverse effect of the oil type on the BChE-catalyzed hydrolysis of MCB was observed in demulsifying emulsions. BChE can be reused and presented an excellent reusability over five times of recycling, clarifying a promising prospect of this enzymatic demulsification strategy in the treatment of LCAC-emulsified wastewater. [Display omitted]
ISSN:0927-7757
1873-4359
DOI:10.1016/j.colsurfa.2022.130283