Abstract
This study evaluated the antioxidant activity, ascorbic acid, and beta-carotene levels in two underutilized species of Sumatran Baccaurea Lour. The fruit of red tampoi or Baccaurea costulata (Miq.) Műll. Arg is orange, while rambai or Baccaurea motleyana (Műll. Arg) Műll. Arg has a pale-yellow color with an “a” value of 29.22±0.51 and 2.67±0.58, respectively, measured with a hand chromameter. The half-maximum inhibitory concentration (IC50) of the free radical scavenging activities of both fruits was determined using the 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging method. The IC50 of B. costulata (51.63±3.42 µg/g) indicated that its fruit juice has a strong antioxidant property, while B. motleyana (76.95±1.28 µg/g) has a moderately antioxidant characteristic. A high antioxidant activity of B. costulata was followed by a high amount of ascorbic acid (55.86±1.73 mg/100g) and beta carotene (150.77±2.16 μg/g), in comparison to those of B. motleyana, which has a lower amount of ascorbic acid (37.30±2.34 mg/100g) and beta carotene (25.36±1.37 μg/g). It was also found that there was a moderate correlation between scavenging capacities (expressed as the reciprocal of the calculated IC50 value), a strong positive correlation with beta-carotene (r2 = 0.90), and a moderately positive correlation with ascorbic acid (r2 = 0.77). It can be concluded that both Baccaurea fruits are nutritious foods due to their high ascorbic acid and beta-carotene content, and they also possess high antioxidant properties. Both ascorbic acid and beta-carotene contributed significantly to the antioxidant activity.
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Claims 6
Claim · model-written summary
B. costulata had a strong antioxidant property.
- Taxon
- B. costulataBaccaurea costulatae0
- Outcome
- strong antioxidant propertye0
- Value
- 51.63±3.42 µg/ge0
Verbatim
e0“The IC50 of B. costulata (51.63±3.42 µg/g) indicated that its fruit juice has a strong antioxidant property”
Claim · model-written summary
B. motleyana had moderate antioxidant activity.
- Taxon
- B. motleyana
Baccaurea motleyanae0 - Outcome
- moderately antioxidant characteristice0
- Value
- 76.95±1.28 µg/ge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“B. motleyana (76.95±1.28 µg/g) has a moderately antioxidant characteristic”
Claim · model-written summary
B. costulata had high ascorbic acid.
- Taxon
- B. costulataBaccaurea costulatae0
- Outcome
- ascorbic acide0
- Direction
- high amounte0
- Value
- 55.86±1.73 mg/100ge0
Verbatim
e0“B. costulata was followed by a high amount of ascorbic acid (55.86±1.73 mg/100g) and beta carotene (150.77±2.16 μg/g)”
Claim · model-written summary
B. costulata had high beta carotene.
- Taxon
- B. costulataBaccaurea costulatae0
- Outcome
- beta carotenee0
- Direction
- high amounte0
- Value
- 150.77±2.16 μg/ge0
Verbatim
e0“B. costulata was followed by a high amount of ascorbic acid (55.86±1.73 mg/100g) and beta carotene (150.77±2.16 μg/g)”
Claim · model-written summary
B. motleyana had lower ascorbic acid.
- Taxon
- B. motleyanaBaccaurea motleyanae0
- Outcome
- ascorbic acide0
- Direction
- lower amounte0
- Value
- 37.30±2.34 mg/100ge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“B. motleyana, which has a lower amount of ascorbic acid (37.30±2.34 mg/100g) and beta carotene (25.36±1.37 μg/g)”
Claim · model-written summary
B. motleyana had lower beta carotene.
- Taxon
- B. motleyanaBaccaurea motleyanae0
- Outcome
- beta carotenee0
- Direction
- lower amounte0
- Value
- 25.36±1.37 μg/ge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“B. motleyana, which has a lower amount of ascorbic acid (37.30±2.34 mg/100g) and beta carotene (25.36±1.37 μg/g)”