Abstract
Bersama abyssinica, belonging to the Melianthaceae family, is distributed across Sub Saharan Africa. Decoctions of the bark, leaves, and roots of B. abyssinica have been extensively used in traditional medicine to manage many stomach complications such as colic, diarrhea, dysentery, and intestinal worms. In this study, we examined three extracts (ethyl acetate, methanol and water) obtained from B. abyssinica stem barks in terms of antioxidant properties. The antioxidant abilities were investigated by different chemical methods, including free radical scavenging (DPPH and ABTS), reducing power (CUPRAC and FRAP), metal chelating and phosphomolybdenum assay. In addition, total phenolic and flavonoid contents in the extracts were calculated. The highest level of phenolics was determined in water extract (230.83 mg GAE/g extract), followed by methanol (216.79 mg GAE/g extract) and ethyl acetate (100.57 mg GAE/g extract). In same line with total phenolic content, the best antioxidant properties were noted for water and methanol extracts. Our findings suggested that B. abyssinica stem bark extracts could be considered as promising sources of natural antioxidants.
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Claims 4
Claim · model-written summary
Water extract of B. abyssinica stem bark had the highest total phenolic level, 230.83 mg GAE/g extract.
- Taxon
- Bersama abyssinica
Bersama abyssinicat0 - Organ / stage
- Stem Barkt1
- Outcome
- level of phenolicse0
- Value
- 230.83 mg GAE/g extracte0
- Qualifier
- water extracte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Bersama abyssinica”
t1“Stem Bark Extracts”
e0“The highest level of phenolics was determined in water extract (230.83 mg GAE/g extract)”
Claim · model-written summary
Methanol extract of B. abyssinica stem bark had a total phenolic level of 216.79 mg GAE/g extract, second to water extract.
- Taxon
- Bersama abyssinicaBersama abyssinicat0
- Organ / stage
- Stem Barkt1
- Outcome
- level of phenolicse0
- Value
- 216.79 mg GAE/g extracte0
- Qualifier
- methanole0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Bersama abyssinica”
t1“Stem Bark Extracts”
e0“The highest level of phenolics was determined in water extract (230.83 mg GAE/g extract), followed by methanol (216.79 mg GAE/g extract)”
Claim · model-written summary
Ethyl acetate extract of B. abyssinica stem bark had the lowest total phenolic level of the three, 100.57 mg GAE/g extract.
- Taxon
- Bersama abyssinicaBersama abyssinicat0
- Organ / stage
- Stem Barkt1
- Outcome
- level of phenolicse0
- Value
- 100.57 mg GAE/g extracte0
- Qualifier
- ethyl acetatee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Bersama abyssinica”
t1“Stem Bark Extracts”
e0“The highest level of phenolics was determined in water extract (230.83 mg GAE/g extract), followed by methanol (216.79 mg GAE/g extract) and ethyl acetate (100.57 mg GAE/g extract)”
Claim · model-written summary
Water and methanol extracts of B. abyssinica stem bark showed the best antioxidant properties, in line with total phenolic content.
- Taxon
- Bersama abyssinicaBersama abyssinicat0
- Outcome
- antioxidant propertiese0
- Direction
- beste0
- Qualifier
- water and methanol extractse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Bersama abyssinica”
e0“the best antioxidant properties were noted for water and methanol extracts”