Screening of medicinal plant extracts for antioxidant activity

Lee, Si Eun; Hwang, Hyun Jin; Ha, Jung-Sun; Jeong, Han-Seung; Kim, Jeong Hee

doi:10.1016/s0024-3205(03)00259-5

Cited by 382 publications

(248 citation statements)

References 29 publications

Supporting

Mentioning

206

Contrasting

Unclassified

Order By: Relevance

“…This decreasing trend was similar to the trend of antioxidant enzymes found in Tunisian dates during different developmental stages (Awad et al, 2011a). Catalase has the ability to convert H 2 O 2 into water and oxygen forms, whereas, POD enzyme was found profoundly responsive to temperature and its activity decreased if exposed to heat for a longer period (Lee et al, 2003). Table 1 contains the arrangement and aggregate of sugars and Figure 6 shows the HPLC graphical representation of sugars of date fruits at different maturity levels.…”

Section: Specific Activity Of Antioxidant Enzymessupporting

confidence: 76%

Biochemical attributes of dates at three maturation stages

Haider¹,

Khan²,

Jaskani³

et al. 2014

Emir. J. Food Agric

View full text Add to dashboard Cite

The date fruit is a primary component of the human diet in many countries with arid and semiarid climates. The present study reflects the relationship of different biochemical attributes with progressive date fruit developmental stages. The study involved eight date palm (Phoenix dactylifera L.) cultivars from Pakistan examined at three different edible stages of dates (khalal, rutab and tamar). The antiradical efficiency (2.14-0.36), antioxidant enzymes (catalase and peroxidase), total phenolic contents (468.99-108 mg GAE/100g, FW) and the soluble protein contents (5.73-2.75 g/100g) were higher in higher at khalal and thereafter, but declined at fully ripened (tamar) stage. Moreover, glucose (16.92-31.66%) and fructose (15.25-30.58%) have lower quantity at khalal and higher quantity at tamar stage, whereas non-reducing (sucrose) sugars were present only at khalal and rutab stage fruits. Makran and Chohara cultivars revealed best overall values in examined compounds. Our results revealed that variation in different biochemical attributes is mainly depended on the difference in fruit maturity stage and cultivar. Cultivars exhibiting high values of beneficial biochemical attributes may be considered for the expansion of date palm cultivation.

show abstract

Section: Specific Activity Of Antioxidant Enzymessupporting

confidence: 76%

Biochemical attributes of dates at three maturation stages

Haider¹,

Khan²,

Jaskani³

et al. 2014

Emir. J. Food Agric

View full text Add to dashboard Cite

show abstract

“…Antioxidants behave as a key defense system against free radical mediated toxicity by protecting the damages (Lee et al, 2003). Anti-oxidants can act as free radical scavengers, lipid peroxidation inhibitor and savior to other free radical mediated processes, protecting the human organs against several pathologies such as Parkinson's disease, atherosclerosis, Alzheimer's disease and cancer (Mates et al, 1999;Rosenkranz, 2002;Uttara et al, 2009;Rejiya et al, 2009).…”

Section: Anti-oxidant Activitymentioning

confidence: 99%

THE PROBABLE MEDICINAL USAGE OF <i>CASSIA TORA</i>: AN OVERVIEW

Shukla¹

2013

OnLine Journal of Biological Sciences

View full text Add to dashboard Cite

Cassia tora (C. tora) is a small shrub budding as weed in Asian and African countries. It is a known edible leafy vegetable taken up by Asians. From time immemorial, different parts of C. tora have found application in Indian and Chinese medicine. Its varying useful medicinal effects are well documented in many publications. In this review we have compiled the traditional medicinal usage of C. tora which have been confirmed by scientific studies.

show abstract

“…The model of scavenging the stable DPPH radical is a widely used method to evaluate the free radical scavenging ability of various samples [13]. Analyzing the in vitro radical scavenging properties of S. rigidum, it may be noted that the aqueous extract has the highest DPPH radical neutralizing capacity.…”

Section: Discussionmentioning

confidence: 99%

In vitrobiological activity of secondary metabolites fromSeseli rigidumWaldst. et Kit. (Apiaceae)

Jakovljević¹,

Vasić²,

Stanković³

et al. 2015

Acta Biologica Hungarica

View full text Add to dashboard Cite

The antioxidant, antimicrobial activity, total phenolic content and flavonoid concentration of Seseli rigidum Waldst. et Kit. were evaluated. Five different extracts of the aboveground plant parts were obtained by extraction with distilled water, methanol, acetone, ethyl acetate and petroleum ether. Total phenols were determined using the Folin-Ciocalteu's reagent, with the highest values obtained in the acetone extract (102.13 mg GAE/g). The concentration of flavonoids, determined by using a spectrophotometric method with aluminum chloride and expressed in terms of rutin equivalent, was also highest in the acetone extracts (291.58 mg RUE/g). The antioxidant activity was determined in vitro using DPPH reagent. The greatest antioxidant activity was expressed in the aqueous extract (46.15 µg/ml). In vitro antimicrobial activities were determined using a microdilution analysis method; minimum inhibitory concentration (MIC) and minimum microbicidal concentration (MMC) were determined. Methanolic extract had the greatest influence on bacilli (MIC at 0.0391 mg/ml), but the best antimicrobial effect had acetone and ethyl acetate extracts considering their broad impact on bacteria. According to our research, S. rigidum can be regarded as promising candidate for natural plant source with high value of biological compounds.

show abstract

Screening of medicinal plant extracts for antioxidant activity

Cited by 382 publications

References 29 publications

Biochemical attributes of dates at three maturation stages

Biochemical attributes of dates at three maturation stages

THE PROBABLE MEDICINAL USAGE OF <i>CASSIA TORA</i>: AN OVERVIEW

In vitrobiological activity of secondary metabolites fromSeseli rigidumWaldst. et Kit. (Apiaceae)

Contact Info

Product

Resources

About