Antioxidant and radical scavenging activities of the pyroligneous acid from a mangrove plant, Rhizophora apiculata

Loo, Amanda; Jain, Kavish Kumar; Demirtaş, İbrahim

doi:10.1016/j.foodchem.2006.11.048

Cited by 118 publications

(86 citation statements)

References 20 publications

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“…Antioxidant capacity was determined using modified FRAP assay (Loo et al 2007). FRAP reagent was prepared from 0.3 M acetate buffer (pH 3.6), 20 mM ferric chloride and 10 mM TPTZ made up in 40 mM hydrochloric acid.…”

Section: Ferrous Reducing Antioxidant Power (Frap)mentioning

confidence: 99%

Bioactive lignans from sesame (Sesamum indicum L.): evaluation of their antioxidant and antibacterial effects for food applications

2014

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Antioxidants protect the body from various disease conditions through their ability to neutralize the effects of free radicals. Synthetic antioxidants are extensively used in processed foods for prevention of oxidation and retention of sensory quality. Consumer awareness and preference has led to a vigorous interest in the search for natural antioxidants. Sesamin and sesamolin, the major lignans present in sesame oil, are known for their antioxidative properties. Roasted sesame oil has a higher concentration of sesamol, the thermally degraded product of sesamolin, which is considered a more potent antioxidant compared to its parent molecule. The isolated lignans and sesamol were tested for their antioxidant, free radical scavenging and antibacterial properties. Sesamol is the best antioxidant and free radical scavenger amongst the molecules studied with IC 50 value of 5.44 μg / mL (DPPH radical scavenging activity). Antibacterial assays against food borne pathogens revealed sesamol to be an antimicrobial agent with minimal inhibitory concentration (MIC) of 2 mg /mL in the culture. Its activity was synergistic with γ-tocopherol, also present in sesame seeds. Inhibition of browning (60-65 %) in fruit pulps (apple, banana and potato) was observed in presence of 20 μM sesamol.

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Section: Ferrous Reducing Antioxidant Power (Frap)mentioning

confidence: 99%

Bioactive lignans from sesame (Sesamum indicum L.): evaluation of their antioxidant and antibacterial effects for food applications

2014

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“…Thus, antioxidant molecules can quench DPPH and convert it to a colorless product, resulting in a decrease in absorbance at 517 nm. In short, the reduction capacity of DPPH was determined by the decrease in its absorbance at 517 nm, which is reduced by antioxidants (Loo et al, 2007). The scavenging effects of fractions under investigation on DPPH radicals were significant.…”

Section: Dpph Scavenging Assaymentioning

confidence: 99%

Chemical constituents and bioactivities of the liposoluble fraction from different medicinal parts ofCrocus sativus

Zheng¹,

Li²,

Ma³

et al. 2011

Pharmaceutical Biology

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“…DPPH free radical scavenging assay is considered as a standard method for the assessment of the antioxidant activity of pure compounds, natural extracts and fractions (Loo et al, 2007;Lue et al, 2010;Rufino et al, 2009). Our results indicated that a higher scavenging capacity was measured in Hex-Fr and CHL-Fr (Figure 1 and 2) compared with the other fractions.…”

Section: Dpph Free Radical Scavenging Assaymentioning

confidence: 99%

GC/MS analysis, free radical scavenging, anticancer and β-glucuronidase inhibitory activities of Trillium govanianum rhizome

Rahman

Shah

Shahid

2015

Bangladesh J Pharmacol

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The current study aims to investigate the phytochemical constituents, antioxidant, β-glucuronidase inhibitory and anticancer activities of Trillium govanianum rhizome. Phytochemical screening revealed the presence of steroidal glycosides, saponins, sterols, flavonoids and carbohydrates. GC/MS analyses of n-hexane fraction identified 12 compounds, including 70% unsaturated and 30% saturated fatty acids. Higher free radical scavenging capacity was observed in n-hexane and chloroform fraction compared with the other fractions. Based on IC50 (μg/mL) values, antiproliferative activity on HeLa cells was observed for chloroform (0.8 ± 0.2), ethyl acetate (1.4 ± 0.1) and butanol (1.6 ± 0.3) fractions by comparison to anticancer drug doxorubicin (0.3 ± 0.0). Similarly, all fractions exhibited cytotoxicity on PC-3 cells. Moreover, the methanol extract (IC50: 140.8 ± 3.8) and butanol fraction (196.2 ± 1.9) exhibited a moderate level of β-glucuronidase inhibitory activity. These findings may validate the folkloric uses of T. govanianum rhizome in cancer management, and can be a promising candidate as an anticancer agent.

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Antioxidant and radical scavenging activities of the pyroligneous acid from a mangrove plant, Rhizophora apiculata

Cited by 118 publications

References 20 publications

Bioactive lignans from sesame (Sesamum indicum L.): evaluation of their antioxidant and antibacterial effects for food applications

Bioactive lignans from sesame (Sesamum indicum L.): evaluation of their antioxidant and antibacterial effects for food applications

Chemical constituents and bioactivities of the liposoluble fraction from different medicinal parts ofCrocus sativus

GC/MS analysis, free radical scavenging, anticancer and β-glucuronidase inhibitory activities of <i>Trillium govanianum</i> rhizome

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