Neutral Lipids
Neutral Lipids - Related Videos
10:56
A Simple and Rapid Protocol for Measuring Neutral Lipids in Algal Cells Using Fluorescence
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Cited by 32 •
2014
A simple protocol to determine the neutral lipid content of algal cells using a Nile Red staining procedure is described. This time-saving technique offers an alternative to traditional gravimetric-based lipid quantification protocols. It has been designed for the specific application of monitoring bioprocess performance.
03:32
Nile Red Staining: A Technique to Detect and Quantify Intracellular Neutral Lipids in Algae
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2025
This video demonstrates a protocol for detecting and quantifying neutral lipids in algal cells by staining them with Nile red dye.
02:44
Oil Red O Staining: A Technique for Staining Neutral Lipids in Hepatocytes for Detecting Hepatic Steatosis In Vitro
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2025
In this video, we demonstrate in vitro staining of neutral lipids in hepatocytes to detect hepatic steatosis or excessive fat accumulation in liver. Excessive fat is accumulated in the cells in form of lipid droplets. Oil Red O is a lipid soluble dye that binds to intracellular neutral lipids in these lipid droplets. When observed under a light microscope, these intracellular lipid droplets appear intensely red in color.
11:08
Cultivation of Green Microalgae in Bubble Column Photobioreactors and an Assay for Neutral Lipids
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Cited by 23 •
2019
Here, we present a protocol to construct lab-scale bubble column photobioreactors and use them to culture microalgae. It also provides a method for the determination of the culture growth rate and neutral lipid content.
08:30
Analysis of Neutral Lipid Synthesis in Saccharomyces cerevisiae by Metabolic Labeling and Thin Layer Chromatography
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Cited by 3 •
2021
Here, a protocol is presented for the metabolic labeling of yeast with 14C-acetic acid, which is coupled with thin layer chromatography for the separation of neutral lipids.
FAQs
Esterification attaches fatty acids to glycerol or cholesterol, reducing the resulting molecule’s polarity. This chemical change limits interaction with the aqueous cellular environment and supports compact accumulation in lipid droplets. The process therefore converts otherwise more reactive lipid components into a storage form that can remain sequestered until cellular demand triggers mobilization.
Triacylglycerols and cholesteryl esters represent two major neutral lipid forms, but they arise from different esterification partners. Fatty acids are linked to glycerol in triacylglycerols and to cholesterol in cholesteryl esters. Distinguishing these forms helps researchers relate neutral lipid composition to energy storage, cholesterol handling, and lipid droplet biology.
Lipases hydrolyze the ester bonds in stored neutral lipids. This reaction releases fatty acids from triacylglycerols or cholesteryl esters, making those components available for oxidation or other metabolic pathways. Lipase activity therefore connects lipid droplet storage with energy use and helps explain how stored material is turned over rather than remaining permanently sequestered.
Packaging neutral lipids into lipid droplets concentrates hydrophobic storage material within a defined cellular structure. This organization supports storage while limiting exposure to the surrounding aqueous environment and provides a location where mobilization can occur. Studying droplet biology can therefore reveal how cells coordinate lipid abundance, localization, and turnover during changing metabolic demands.
Fluorescence imaging can reveal where neutral lipids are localized and how their distribution relates to lipid droplets. By examining fluorescent signals in cells, researchers can assess patterns of storage and compare lipid abundance or positioning across biological conditions. This approach is especially useful for connecting neutral lipid organization with cellular structure and droplet biology.
Mass spectrometry can measure neutral lipid abundance and help characterize the lipid pool present in a biological sample. When interpreted alongside cellular localization data, these measurements support analysis of neutral lipid composition and turnover. The technique is therefore valuable for connecting molecular-level lipid changes with broader questions about storage and metabolism.
Neutral lipid biology provides a framework for examining how energy storage changes in obesity and metabolic disease. Researchers can investigate lipid abundance, lipid droplet localization, and the balance between storage and lipase-mediated release. These measurements help relate altered lipid handling to disrupted fuel management and broader cellular metabolic imbalance.