Antibacterial, antioxidant and cytotoxic activities of different fractions of acetone extract from flowers of Dipterocarpus intricatus Dyer (Dipterocarpaceae)

Le, Hong Thia; Luu, Thao Nguyen; Nguyen, Huynh Mai Thu; Nguyen, Dang HoaiTrang; Quoc, Le Pham Tan; Trịnh, Ngọc Nam; Le, Van Son; Nguyễn, Hoàng Dũng; Van, Thien Hong

doi:10.14719/pst.2021.8.2.1086

Cited by 6 publications

(7 citation statements)

References 15 publications

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“…Tannic acid is a naturally occurring complex polyphenolic compound found in most aerial plant tissues [ 45 ]. Antioxidants have been studied in flowers of Dipterocarpus intricatus Dyer [ 46 ], with no reported phenolic compounds in Dipterocarpus intricatus Dyer fruit.…”

Section: Introductionmentioning

confidence: 99%

Ultrasound-Assisted One-Pot Cloud Point Extraction for Iron Determination Using Natural Chelating Ligands from Dipterocarpus intricatus Dyer Fruit

et al. 2022

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An ultrasound-assisted, one-pot cloud point extraction was developed for the determination of iron in vegetable samples by UV-Visible spectrophotometry. This method was based on the complexation of iron with an environmentally-friendly natural chelating agent extracted from Dipterocarpus intricatus Dyer fruit at pH 5.5 in the presence of Triton X-114. Reagent extraction, complexation, and preconcentration were performed simultaneously using ultrasound-assisted extraction at 45 °C. The surfactant-rich phase was diluted with ethanol and loaded through a syringe barrel packed with cotton that acted as a filter to trap the reagent powder. Analyte-entrapped on cotton was eluted using 0.1 mol·L−1 nitric acid solution. Filtrate and eluate solutions were measured absorbance of the dark-blue product at 575 nm. Influential parameters for the procedure were investigated. Under the optimum experimental conditions, the calibration curve was linear, ranging from 0.1 to 1.0 mg·L−1 with r2 = 0.997. Limits of detection and quantification were 0.03 and 0.09 mg·L−1, respectively while precision values of intra-day and inter-day were less than 5%. Recovery at 0.5 mg·L−1 ranged from 89.0 to 99.8%, while iron content in vegetable samples ranged from 2.45 to 13.36 mg/100 g. This method was cost-effective, reliable, eco-friendly, and convenient as a green analytical approach to determining iron content.

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Section: Introductionmentioning

confidence: 99%

Ultrasound-Assisted One-Pot Cloud Point Extraction for Iron Determination Using Natural Chelating Ligands from Dipterocarpus intricatus Dyer Fruit

et al. 2022

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“…The solid material was further soaked in 300 ml and 200 ml sequentially of the same solvent and filtered to collect the extracts. All the three acetone extracts were then combined and condensed on an a rotary evaporator at 40 ℃ to remove the solvent (8).…”

Section: Extractionmentioning

confidence: 99%

“…The extract was subjected to a rotary evaporator at 40 ºC to remove the solvent. The lower layer was then used to collect the ethyl acetate and chloroform (Thermo Fisher Scientific, USA) fractions using the same procedure (8).…”

Section: Extractionmentioning

confidence: 99%

Phlogacanthus cornutus: chemical profiles and antioxidant effects

et al. 2022

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Phlogacanthus cornutus is a rare species and the chemical profiles and the bioactivities of this plant are unknown. In present study, the chemical components of the acetone extract as well as the antioxidant activity of acetone extract and its fractions such as n-hexane, chloroform and ethyl acetate of P. cornutus were firstly reported. A total of 33 constituents were identify in the acetone extract of this plant using Gas Chromatography/Mass Spectrometry assay, in which trans-cinnamic acid (21.26%), neophytadiene (6.36%), linolenic acid (5.86%), dihydroagathic acid (5.71%), n-hexadecanoic acid (5.53%), phytol (4.14%) and cis-cinnamic acid (3.23%) were the major compounds. The acetone extract and its fractions such as n-hexane, chloroform and ethyl acetate of P. cornutus showed DPPH radical scavenging activity with IC50 value of 234.31, 185.95, 758.65 and 458.52 µg/mL respectively.

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“…The absorbance was measured at 517 nm using the microplate reader. 15 The standard Trolox was used as a positive control. The inhibition percentage of the DPPH radical scavenging activity was calculated as follows with the equation below:…”

Section: Determinations Of Antioxidant Activities Dpph Radical Scavenging Assaymentioning

confidence: 99%

Determination of a Chemical Marker in Dipterocarpus alatus Oleoresin Samples and Bioactivity Screening via Antioxidants, Nitric Oxide Inhibition on Murine RAW 264.7 Cells, and Collagen Production on Normal Human Dermal Fibroblasts

2021

TJNPR

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Bioactivities of oleoresin such as antibacterial, antifungal, anticancer, anti-inflammatory activity, insecticidal activity, antioxidant activities, antiarthritic agent, 3 including its use for the treatment of skin allergies, diarrhea, dysentery, astringency have been reported. 4,5 The essential oils, components separated from oleoresins were utilized in pharmaceutical industry, perfume industry, food, drink additives and other chemical industries. 6 The D. alatus oleoresin turns brown after standing at room temperature for a few days while D. alatus oleoresin after boiling appears as a clear homogeneous yellow liquid and are more stable without a precipitate. The oleoresin could improve the quality by degumming under alkaline condition at temperature of 95 ºC for 30 min according to the announcement of the Department of Energy, Thailand. 7 The degumming process facilitates the removal of impurities or gum from the oil to prevent crude oil settling during storage or transport. However, the alkali degumming products could change the chemical composition subsequently affect biological activities. The properties of D. alatus oleoresin were found to have potential as an alternative liquid biofuel and (-)-α-gurjunene was found as the major compound in oleoresin by GC-MS analysis. 8 The major compound in D. alatus oleoresin is (-)-α-gurjunene which can be used as a chemical marker. Copaifera langsdorffii was used to treat rat skin wounds and also had potential in healing wounds of the skin. 9

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Antibacterial, antioxidant and cytotoxic activities of different fractions of acetone extract from flowers of Dipterocarpus intricatus Dyer (Dipterocarpaceae)

Cited by 6 publications

References 15 publications

Ultrasound-Assisted One-Pot Cloud Point Extraction for Iron Determination Using Natural Chelating Ligands from Dipterocarpus intricatus Dyer Fruit

Ultrasound-Assisted One-Pot Cloud Point Extraction for Iron Determination Using Natural Chelating Ligands from Dipterocarpus intricatus Dyer Fruit

Phlogacanthus cornutus: chemical profiles and antioxidant effects

Determination of a Chemical Marker in Dipterocarpus alatus Oleoresin Samples and Bioactivity Screening via Antioxidants, Nitric Oxide Inhibition on Murine RAW 264.7 Cells, and Collagen Production on Normal Human Dermal Fibroblasts

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