brassicasterol
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Brassicasterol (24-methyl cholest-5,22-dien-3β-ol) is a 28-carbon sterol synthesised by several unicellular algae (phytoplankton) and some terrestrial plants, like rape. This compound has frequently been used as a biomarker for the presence of (marine) algal matter in the environment, and is one of the ingredients in stigmasterol-rich plant sterols (Number E499 in the European numbering system).
~5 min read
Encyclopedic overview
10 sectionsContents
- Chemical properties
- Solubility
- Degradation
- Chemical analysis
- Formation and occurrences
- Algal sources
- Use as a tracer for marine algae
- Brassicasterol / cholesterol ratio
- Multivariate analysis
- References
Brassicasterol (24-methyl cholest-5,22-dien-3β-ol) is a 28-carbon sterol synthesised by several unicellular algae (phytoplankton) and some terrestrial plants, like rape. This compound has frequently been used as a biomarker for the presence of (marine) algal matter in the environment, and is one of the ingredients in stigmasterol-rich plant sterols (Number E499 in the European numbering system).
There is some evidence to suggest that it may also be a relevant additional biomarker in Alzheimer's disease. More specifically, AD patients have lower levels of this sterol in their cerebrospinal fluid.
Excerpted from Wikipedia’s “brassicasterol” article, available under the CC BY-SA 4.0 licence.
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