Effects of Different Container Types on (1→3)-β-D-glucan Recovery

Molecules. 2023 Oct 4;28(19):6931. doi: 10.3390/molecules28196931.

Abstract

It has long been known that containers for sample analysis or storage can play a role in endotoxin recovery and have to be taken into account when determining endotoxin concentrations. However, there is little data on the effects of containers regarding (1→3)-β-D-glucan, which plays a role as a contaminant in endotoxin measurements. To determine the effect of the container on (1→3)-β-D-glucan measurements, four different types of containers were investigated at different temperatures and stored for up to 28 days. For short-term storage for 3 h at room temperature, no effect of the container on the (1→3)-β-D-glucan recovery could be observed, but for storage at -20 °C, the results indicate that the storage time and temperature influences (1→3)-β-D-glucan detection. All containers showed a trend of lower recoveries over time, but the polyethylene container showed a significantly lower recovery compared to the other containers. We also showed that freeze/thaw cycles had a strong influence on the recovery of (1→3)-β-D-glucan in polyethylene containers. Our study showed that the container can affect not only the detection of endotoxins but also the detection of (1→3)-β-D-glucans.

Keywords: (1→3)-β-D-glucan; SHT; container effect; freeze/thaw; sample hold time; spike recovery.

MeSH terms

  • Endotoxins
  • Glucans* / analysis
  • Polyethylenes
  • Temperature
  • beta-Glucans* / analysis

Substances

  • Glucans
  • beta-Glucans
  • Endotoxins
  • Polyethylenes

Grants and funding

This research received no external funding.