Antioxidant Activities of Extracts from Medicinal Plants

Park, Hye-Jin; Kang, Sun-Ae; Lee, Ju-Yeong; Cho, Young-Je

doi:10.11002/kjfp.2012.19.5.744

Cited by 14 publications

(3 citation statements)

References 13 publications

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“…Antioxidants can protect cells from oxidative damage by removing free radicals intermediates and prevent cell apoptosis (Lim, 2010). Synthetic antioxidants such as BHA and BHT have excellent antioxidant effects, however, showed various side effects caused by toxicity; thus, there is increasing interest in research on safe natural antioxidants (Park et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Assessment of antioxidant activities of HeukHarang a novel Korean Lectuca sativa L.

et al. 2022

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In this study, antioxidant activities of HeukHarang a novel Korean Lectuca sativa L.extracts compair with Red skirt lettuce. The highest total polyphenol contents was 60% ethanol extracts of HeukHarang and total flavonoid contents was 40% ethanol extracts, 84.70 ± 0.11 mg TAE/10 g DW and 63.82 ± 0.09 mg QE/10 g DW, respectively. The highest FRAP activity and PMA were 60% and 80% ethanol extracts of heuharang, 1,876.3 ± 0.01 mM TEAC/10 g DW and 26.2 ± 0.0 mM AAEAC/10 g DW, respectively. Radical scavenging activity also HeukHarang ethanol extracts was higher than Red skirt lettuce. The highest ORAC value was 76.0 ± 0.43 mM TEAC/10 g DWthehd, 100% ethanol extracts of HeukHarang. As a result, the all antioxidant activities of Heuhalang ethanol extracts were higher than that of Red skirt lettuce as a control.

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Section: Introductionmentioning

confidence: 99%

Assessment of antioxidant activities of HeukHarang a novel Korean Lectuca sativa L.

et al. 2022

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“…It has cold properties, tastes bitter and sour, and is non-toxic and fragrance-free (Kim et al, 2011). It has been mainly used in wound treatment and hemostasis in oriental medicine, and is known to be effectual in dermatitis, mucosal inflammation, eczema, and burns (Park et al, 2012b). The main ingredients are ziguglycoside I, II, pomlic acid, gallic acid, ellagic acid, and quercethin at the root; quercetin, kaempferol, ursolic acid, saponinat branches; vit C in leaf; chrysanthemin, cyanin in flower (Jang et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Correlation between antioxidant activity and anti-wrinkle effect of ethanol extracts of Sanguisorba Officinalis L.

2021

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Sanguisorba officinalis L., the dried roots of which are referred to as cucumber herb is a perennial herb belonging to the family Rosaceae. This study was showed the correlation between the antioxidant activity and its anti-wrinkle effects of ethanol extraction concentration of S. officinalis L. The extraction yield of the S. officinalis extracts was all 10% or more, which was judged to be economical. 80% ethanol extracts was the highest in total polyphenol and flavonoid contents and the best total antioxidant activity. The correlation between total polyphenol and flavonoid contents and antioxidant activity was 0.830 and 0.872, respectively, with a significant correlation was confirmed. In addition, in 80% ethanol extracts, superoxide anion and NO radical scavenging activities were the most effective. These results validated that the optimum extraction concentration for S. officinalis was 80% ethanol.

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“…Various methods to solve the problem of putrefactive pathogens and decomposition of postharvest strawberry have been used (Park et al, 2012): postharvest cold treatment, controlled atmospheres with CO2 treatment (Wszelaki and Mitcham, 2003;Eum et al, 2014;Kim et al, 2016), ultraviolet light treatment (Nigro et al, 2000), natural active products such as essential oils (Hernández et al, 2006;Oliveira et al, 2019), biological control with microorganisms (Wszelaki and Mitcham, 2003), and chemical control with compounds to control ethylene (Lattanzio et al, 1996;Blacharski et al, 2001;Guillén et al, 2007). Packing treatment technologies have also been used, such as MA packing (Kim et al, 1993), the use of corrosiveness films (Shin and Song, 2011), the use of film from natural materials (Chung and Cho, 2003), and application of micro-perforation films with optimum gas penetrability (Lee et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Development of Antimicrobial Paper with Ag Nanoparticles Synthesized Using Rubus coreanus Leaf Extract to Extend the Storage Period for Strawberry

Kim¹,

Nam²,

Lee³

et al. 2021

HST

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This study developed an antimicrobial paper against major putrefactive pathogens in strawberry through integrating Rubus coreanus leaf extract and silver nitrate (AgNO 3 ). The R. coreanus extract and silver nitrate were synthesized and then assayed by spectrophotometry. A peak was found around 400 nm, the wavelength of silver particle absorption. Synthesis of R. coreanus extract-silver nitrate was confirmed by transmission electron microscopy (TEM). It was found that R. coreanus extract was combined with round nanosilver particles 100 nm or smaller, along with some triangular, polygon, and stick forms. Nanosilver synthesis was developed using the R. coreanus extract as a reducing agent and then the developed antimicrobial paper was investigated by scanning electron microscope (SEM). Nanosilver particles of nanometer level were also found in the antimicrobial paper. Ag was found to be evenly distributed through energy dispersive x-ray spectroscopy (EDS) analysis, and R. coreanus extract was also contained in the antimicrobial paper. The developed antimicrobial paper showed antimicrobial effects against all three putrefactive pathogens: Botrytis cinerea, Alternaria tenuissima, and Rhizopus stolonifer. Compared with general paper, the antimicrobial paper also minimally changed postharvest strawberry weight and hardness, helping to maintain fruit quality and lengthen the storage period.

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Antioxidant Activities of Extracts from Medicinal Plants

Cited by 14 publications

References 13 publications

Assessment of antioxidant activities of HeukHarang a novel Korean Lectuca sativa L.

Assessment of antioxidant activities of HeukHarang a novel Korean Lectuca sativa L.

Correlation between antioxidant activity and anti-wrinkle effect of ethanol extracts of Sanguisorba Officinalis L.

Development of Antimicrobial Paper with Ag Nanoparticles Synthesized Using Rubus coreanus Leaf Extract to Extend the Storage Period for Strawberry

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