Exploration of Neuroscience

Table 1. Notable triterpenoids with their biological sources

Triterpenoid class	Name	Biological sources
Pentacyclic triterpenoids
(a) Ursane type	Asiatic acid	Centella asiatica
	Asiaticoside	Centella asiatica
	Madecassoside	Centella asiatica
	β-boswellic acid	Boswellia serrata
	Ursolic acid	Mirabilis jalapa, apple peals
(b) Oleanane type	α-boswellic acid	Boswellia serrata
	Glycyrrhizic acid	Glycyrrhiza glabra
	Maslinic acid	Olives
(c) Lupane type	Betulin	Betula papyrifera
	Betulinic acid	Betula papyrifera
	Lupeol	Camellia japonica, Mangifera indica, Acacia visco
(d) Friedalane type	Celastrol	Tripterygium wilfordii
Tetracyclic triterpenoids
(a) Dammarane type	Bacoside A	Bacopa monnieri
	Bacopaside I	Bacopa monnieri
	Ginsenosides	Panax ginseng
(b) Lanostane type	Ganoderic acid A	Ganoderma lucidum
(b) Lanostane type	Lucidenic acids	Ganoderma lucidum
(c) Cycloartane type	Astragaloside IV	Astragalus membranaceus
(d) Cucurbitane type	Cucurbitacin B	Cucurbitaceous plants

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Declarations

Acknowledgments

Ms. Apoorva A. Bankar would like to acknowledge University Grants Commission (UGC), New Delhi for providing fellowship for doctoral studies.

Author contributions

AAB: Investigation, Writing—original draft, Writing—review & editing. VPN: Conceptualization, Writing—review & editing. NRK: Conceptualization, Supervision, Validation. NNI: Conceptualization, Investigation, Writing—original draft, Writing—review & editing. All authors read and approved the submitted version.

Conflicts of interest

The authors declare that they have no conflicts of interest.

Ethical approval

Not applicable.

Consent to participate

Not applicable.

Consent to publication

Not applicable.

Availability of data and materials

Not applicable.

Funding

Not applicable.

Copyright

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