Bioefficacy of Mauritian Endemic Medicinal Plants: Assessment of Their Phenolic Contents and Antioxidant Potential

Figures & data

Table 1.. List of plant species used in this study; traditional uses and status of species population are included.^a.

Plant species	Common name	Family	Traditional medicinalproperty^a.	Status of speciespopulation
Badula multiflora.	Bois nacre	Myrsinaceae	—	Vulnerable
Crinum mauritianum.	—	Amaryllidaceae	Against rheumatic pain	Not threatened
Croton vaughanii.	—	Euphorbiaceae	—	Rare
Erythroxylum macrocarpum.	Bois piment/bois de ronde	Erythroxylaceae	—	Not threatened
Gaertnera psychotroides.	Bois banane	Rubiaceae	Rheumatism, skin infections	Not threatened
Ochna mauritiana.	Bois bouquet banané/ bois jasmin	Ochnaceae	—	Not threatened
Psidia terebinthina.	Baume d'Ile platte	Asteraceae	Expectorant properties; used against boils, abscesses, fever, wounds	Vulnerable
Tambourissa cordifolia.	Bois tambour	Monimiaceae	—	Rare
Tylophora coriacea.	Ipéca du pays	Asclepadiaceae	Emetic properties	Rare
Turraea rigida.	Bois café marron	Meliaceae	—	Rare

^a.Source: Gurib-Fakim et al., 19951996ab.

Figure 1 Total phenol, total proanthocyanidin, and total flavonoid content of some highly threatened Mauritian endemic plant extracts. Values are expressed in mg/g fresh weight.

Figure 2 Inhibition of AAPH-induced microsome peroxidation by B. multiflora. and O. mauritiana. plant extracts. Concentrations yielding 50% inhibition for B. multiflora. and O. mauritiana. were 0.09 and 0.15 mg FW/mL, respectively.

Table 2.. Antioxidant propensities of the plant extracts.

Plant species	TEAC^a.	FRAP^b.	HOCl scavenging^c.	Lipid peroxidation^c.
Badula multiflora.	849 ± 15.4	923 ± 5.1	0.4 ± 0.01	0.092
Erythroxylum macrocarpum.	442 ± 35.3	518	0.9 ± 0.08	0.23
Gaertnera psychotroides.	358 ± 22.4	380 ± 8.2	1.4 ± 0.22	0.17
Ochna mauritiana.	303 ± 22.4	275 ± 48.9	1.1 ± 0.12	0.15
Tambourissa cordifolia.	208 ± 6.4	142 ± 3.5	1.2 ± 0.04	0.43
Turraea rigida.	170 ± 6.4	170 ± 0.6	1.5 ± 0.08	0.62
Croton vaughanii.	161 ± 11.5	141 ± 7.1	1.1 ± 0.02	0.67
Psidia terebinthina.	31 ± 0.2	32 ± 3.1	13.0 ± 0.11	2.1
Tylophora coriacea.	29 ± 0.6	41 ± 7.8	13.0 ± 0.37	1.82
Crinium mauritianum.	3 ± 0.01	6 ± 1.8	59.9 ± 1.49	—

TEAC, trolox equivalent antioxidant capacity; FRAP, ferric reducing antioxidant power.

Results are expressed in ^a.µmol trolox equivalent/g fresh weight

^b.µmol Fe(II) equivalent/g fresh weight

^c.IC₅₀(mg FW/mL).

Figure 3 Percentage inhibition of deoxyribose degradation. Results are expressed per mg FW/mL plant extracts.

Gurib-Fakim A, Guého J (1995): Plantes médicinales de Maurice. Tome 1. Mauritius, Edition de l'Ocean Indien, pp. 1–485.

 Google Scholar

Gurib-Fakim A, Guého J, Bissoondoyal MD (1996a): Plantes Médicinales de Maurice. Tome 2. Mauritius, Editions de L'Ocean Indien, pp. 1–532.

 Google Scholar

Gurib-Fakim A, Guého J, Bissoondoyal MD (1996b): Plantes Médicinales de Maurice. Tome 3. Mauritius, Editions de L'Ocean Indien, pp. 1–472.

 Google Scholar