Comparative Study on Chemical Composition and Antioxidant Activity of Annona Muricata Plant Parts Cultivated in Covenant University, Ota, Ogun State, Nigeria
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Abstract
Description
Annona muricata plant parts possess a broad range of medicinal and
biological properties. This research compared the chemical composition
and antioxidant properties of Annona muricata parts. Proximate,
mineral, total phenol and total flavonoid content as well as in vitro
antioxidant activity were examined. Results revealed the leaves contained
significantly (p < 0.05) higher composition of moisture (8.69±0.22 %),
ash (4.60±0.02 %), protein (14.53±0.11 %), crude fat (10.28±0.03
%), chromium (0.38±0.05 mg/100g), nickel (1.75±0.04 mg/100g), total
phenol (1.01±0.03 mg pyrocatechol/mL) and total flavonoid (1.12±0.03
mgGAE/mL) compared to the respective values for root. Carbohydrate
(9.29±0.24 %), lead (0.13±0.02 mg/100g) and cobalt (1.93±0.02 mg/100g)
composition was significantly lower (p < 0.05) in the leaves compared to the
respective compositions in the root. The leaf and root extract exhibited a
concentration-dependent increase in hydroxyl radical scavenging activity
with no observable (p < 0.05) difference in their EC50 value. This study
suggests the leaves of A. muricata found in Covenant University had better
chemical composition when compared to the root. Nonetheless, these
plant parts may be further exploited for not only their nutritive composition
and mineral content but also a natural source of antioxidant agents.
Keywords
Q Science (General), QD Chemistry