Investigation on the surface-active and antimicrobial properties of a natural glycolipid product

Food Funct. 2021 Nov 15;12(22):11537-11546. doi: 10.1039/d1fo02359d.

Abstract

Glycolipids are a group of sugar-containing lipids with versatile functions. In this study, a natural glycolipid product was obtained from soy lecithin, and its emulsifying, oil-gelling, antibacterial and antiviral properties were investigated. A silica-based extraction method on a preparative scale was used to recover the glycolipid product (GLP) from soy lecithin. The GLP consisted of three different glycolipid classes: acylated sterol glucoside (64.16%), sterol glucoside (25.57%) and cerebroside (6.71%). As an emulsifier, the GLP was able to form a stable water-in-oil emulsion. The GLP exhibited a good oil-gelling property, capable of gelling rapeseed oil at a concentration of 6%. For the investigated microorganisms (Escherichia coli, Pseudomonas aeruginosa and Staphylococcus aureus), the GLP did not show any antibacterial effects. The GLP exerted antiviral activity against lentivirus, but not adenovirus. The results of this study help in enriching the knowledge on the properties of naturally occurring glycolipids, which may find potential applications in the food, pharmaceutical and related industries.

MeSH terms

  • Adenoviridae / drug effects
  • Anti-Infective Agents* / chemistry
  • Anti-Infective Agents* / pharmacology
  • Bacteria / drug effects
  • Biological Products* / chemistry
  • Biological Products* / pharmacology
  • Emulsifying Agents / chemistry
  • Emulsifying Agents / pharmacology
  • Glycolipids* / chemistry
  • Glycolipids* / pharmacology
  • Lentivirus / drug effects
  • Rapeseed Oil / chemistry
  • Surface-Active Agents* / chemistry
  • Surface-Active Agents* / pharmacology

Substances

  • Anti-Infective Agents
  • Biological Products
  • Emulsifying Agents
  • Glycolipids
  • Rapeseed Oil
  • Surface-Active Agents