Analytical Chem JoVE (Open Access) Citable · DOI

Profiling the Triacylglyceride Contents in Bat Integumentary Lipids by Preparative Thin Layer Chromatography and MALDI-TOF Mass Spectrometry

Name: Profiling the Triacylglyceride Contents in Bat Integumentary Lipids by Preparative Thin Layer Chromatography and MALDI-TOF Mass Spectrometry
Uploaded: 2026-07-14
Duration: 9 min 18 s
Description: The mammalian integument includes sebaceous glands that secrete an oily material onto the skin surface. Sebum production is part of the innate immune ...

DOI: 10.3791/50757-v

What you'll learn

✓ Extract and isolate lipids from bat integumentary tissues using solvent extraction
✓ Separate triacylglyceride lipid classes via preparative thin-layer chromatography
✓ Profile and identify TAG molecular species using MALDI-TOF mass spectrometry
✓ Interpret TAG composition data to characterize species-specific lipid profiles

Protocol

Biopharma Insights Mammalian integument contains solvent-extractable lipids that can provide chemical compositions characteristic of individual species. This paper presents a routine method for separating broad lipid classes isolated from integumentary tissues using thin layer chromatography and determining the triacylglyceride profile by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry.

Difficulty

advanced

Total time

~4–6 hours per sample (tissue extraction through MS analysis)

Model organism

Bat (Eastern Red Bat, Lasiurus borealis)

Biosafety

BSL-1

Steps

Extract and prepare bat integumentary lipids

Harvest integumentary tissue from bat specimens and perform solvent extraction to isolate total lipids. This yields the crude lipid fraction for downstream separation.

▶ 01:26

Separate lipid classes by preparative thin-layer chromatography

Apply crude lipid extracts to preparative TLC plates and develop using appropriate mobile phase to resolve broad lipid classes. Visualize bands and recover triacylglyceride fraction.

▶ 02:33

Analyze TAG molecular species by MALDI-TOF MS

Prepare purified TAG fraction for MALDI-TOF mass spectrometry analysis. Acquire and interpret mass spectra to determine specific triacylglyceride molecular composition and profile.

▶ 05:34

Interpret triacylglyceride profiles of bat tissues

Examine resultant TAG profiles from Eastern Red Bat integumentary tissues and identify species-characteristic lipid molecular signatures for comparative biochemical analysis.

▶ 07:21

💬 Comments coming soon