DETERMINATION OF ANTIOXIDANT ACTIVITY, TOTAL PHENOLIC CONTENT, AND TOTAL FLAVONOID CONTENT OF ROOTS, STEM BARK, AND LEAVES OF Elaeocarpus mastersii KING

Okselni, Tia; Santoni, Adlis; Dharma, Abdi; Efdi, Mai

doi:10.31788/rjc.2018.1133058

Cited by 14 publications

(15 citation statements)

References 30 publications

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“…They have various biological activities such as antioxidant, anti-inflammatory, anti-allergic, anticarcinogenic, anti-mutagenic and modulatory effects on enzymatic activities. Flavonoids possess high antioxidant activities that can protect the body system against free radical and other diseases such as arteriosclerosis and diabetes 9,[26][27][28] .…”

Section: Total Flavonoid Contentmentioning

confidence: 99%

TANNIN AND ANTIOXIDANT STATUS OF FERMENTED AND DRIED Sorghum bicolor

Olawole¹,

Olalere²,

Adeyemi³

et al. 2019

RJC

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The effects of some processing and extraction techniques on the tannin content and antioxidant activities of Sorghum bicolor (Linn) were evaluated. The ethanolic, methanolic and water extracts from the sorghum seeds were assessed after being fermented, or oven-dried for 0 (OVD-0), 30 (OVD-30) and 60 (OVD-60) mins, along with those of the chaff collected after fermentation, and the unprocessed sorghum (control). Tannin, total flavonoids, total phenol, polyphenol contents and 2, 2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging analysis were determined. All the processing techniques combined with the extraction methods significantly reduced (p<0.05) the tannins. OVD-30 combined with methanol extraction, and all the oven-drying techniques combined with aqueous extraction significantly increased (p<0.05) the flavonoids contents. Flavonoids levels in other methanol extracts and the ethanol extracts of sorghum seeds subjected to oven-drying methods were reduced significantly (p<0.05). The amount of phenolic extracted with both ethanol and methanol significantly increased (p>0.05) during the period of oven-drying. The phenolic contents in the seeds were reduced significantly (p<0.05) when extracted with an aqueous solution. The amount of polyphenols was increased significantly (p<0.05) by ethanol extraction when treated with air-drying (OVD-0). The DPPH scavenging activity was increased significantly (p<0.05) by the processing methods when subjected to either aqueous or methanolic extraction. Fermentation and oven-drying are a highly effective method of reducing the anti-nutritional factors of sorghum. Therefore, the therapeutic values of the processed sorghum seeds may be improved during consumption.

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Section: Total Flavonoid Contentmentioning

confidence: 99%

TANNIN AND ANTIOXIDANT STATUS OF FERMENTED AND DRIED Sorghum bicolor

Olawole¹,

Olalere²,

Adeyemi³

et al. 2019

RJC

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“…Modified Folin-Ciocalteu method 19 was used to determine the phenolic content of the extracts. The test tube composed of 2.5 ml Folin-Ciocalteu reagent (10%, V/V) and 2.0 mL sodium carbonate (2%, W/V) was added with 0.5 mL extract of 100 µg/mL in methanol solution.…”

Section: Determination Of Total Phenolic Content (Tpc)mentioning

confidence: 99%

“…Flavonoid content of the extract was evaluated by the colorimetric method 19 with slight modification. The extract of 2.0 mL (100 µg/mL, in methanol solution) was added with aluminum chloride [0.1 mL, 10% (W/V)] and sodium acetate (0.1 mL, 0.1 mM).…”

Section: Determination Of Total Flavonoid Content (Tfc)mentioning

confidence: 99%

“…As long as our literature study, E. mastersii King was only reported by Ito et al 18 and studied its cytotoxic activity. As the part of our ongoing program for studies about E. mastersii King plant 19 , we evaluated the biological activity as the antioxidant, antibacterial, and α-glucosidase inhibitory activity from the root, stem bark, and leaf of E. mastersii King.…”

Section: Introductionmentioning

confidence: 99%

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BIOLOGICAL ACTIVITY OF METHANOL EXTRACT OF Elaeocarpus mastersii KING: ANTIOXIDANT, ANTIBACTERIAL, AND α-GLUCOSIDASE INHIBITOR

Okselni¹,

Santoni²,

Dharma³

et al. 2019

RJC

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Plants are one of the natural resources that have great biological activity and have long been used in traditional medicine. In this research, methanol extracts of root, stem bark, and leaf of Elaeocarpus mastersii King were tested to determine phenolic and flavonoid content and evaluate their biological activities as the antioxidant, antibacterial, and antidiabetic using the method of DPPH (2,2-diphenyl-1-picrylhydrazyl) assay, disc diffusion against Staphylococcus epidermidis (S. epidermidis), Staphylococcus aureus (S. aureus), Salmonella typhosa (S. typhosa), and Escherichia coli (E. coli), and inhibition of α-glucosidase enzyme, respectively. All parts showed high phenolic content and antioxidant activity wherein the leaf extract was found to be the highest value (340.36 ± 2.09 mg GAE/g DW and IC 50 1.86 ± 0.00 µg/mL) followed by the stem bark (331.53 ± 6.96 mg GAE/g DW and IC 50 2.43 ± 0.01 µg/mL) and the root (216.27 ± 3.19 mg GAE/g DW and IC 50 3.37 ± 0.20 µg/mL), respectively. In contrast, their flavonoid values were very low. The stem bark exhibited the highest antibacterial activity against all of the tested bacteria. The activity of α-glucosidase inhibition revealed that the stem bark had the highest activity among all parts with the IC 50 of 14.56 ± 1.20 µg/mL. This study demonstrates that Elaeocarpus mastersii King has a great biological activity as the antioxidant, antibacterial, and α-glucosidase inhibitor.

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“…They have been reported present in various plants and known to contribute to biological activities such as antimicrobial activities. [26][27][28][29]…”

Section: Ddph Antioxidant Assaymentioning

confidence: 99%

CHEMICAL COMPOSITION AND ANTIOXIDANT ACTIVITY OF THE ESSENTIAL OILS FROM WHITE AND GREEN LEAVES OF NIGERIA-GROWN Ficus microcarpa

Atolanı¹,

Adeosun²,

Oluyori³

et al. 2019

RJC

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The chemical composition and antioxidant potentials of the essential oils obtained from white and green leaves of Ficus microcarpa were investigated. The essential oils were derived using hydro-distillation method and Gas Chromatography -Mass Spectrometry analysis was used to detect the different constituents in the essential oils. The 1,1-diphenyl-2-picryl radical antioxidant assay was performed to investigate the free radical scavenging capacity of the essential oils. Twenty phytochemicals were common to both essential oils while some notable differences were observed between them. Phytol (40.90%) and copaene (15.85%) were the most abundant compounds in the white leaves while megastigmatrienone (14.98%), 1,3-cyclohexadiene (9.20%) and 1-hexanol (8.80%) were the most abundant in the green leaves. The essential oil from the white leaves with a higher concentration of phytol exhibited the greater antioxidant potential. The plant may, therefore, be employed as a viable phytochemical bio-resource in medical applications.

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DETERMINATION OF ANTIOXIDANT ACTIVITY, TOTAL PHENOLIC CONTENT, AND TOTAL FLAVONOID CONTENT OF ROOTS, STEM BARK, AND LEAVES OF Elaeocarpus mastersii KING

Cited by 14 publications

References 30 publications

TANNIN AND ANTIOXIDANT STATUS OF FERMENTED AND DRIED Sorghum bicolor

TANNIN AND ANTIOXIDANT STATUS OF FERMENTED AND DRIED Sorghum bicolor

BIOLOGICAL ACTIVITY OF METHANOL EXTRACT OF Elaeocarpus mastersii KING: ANTIOXIDANT, ANTIBACTERIAL, AND α-GLUCOSIDASE INHIBITOR

CHEMICAL COMPOSITION AND ANTIOXIDANT ACTIVITY OF THE ESSENTIAL OILS FROM WHITE AND GREEN LEAVES OF NIGERIA-GROWN Ficus microcarpa

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