In vitro Antioxidant Effect of the Leaf and Branch Extracts of Ribes L. Species in Turkey

Kendir, Gülsen; Köroğlu, Ayşegül

doi:10.15344/2394-1502/2015/108

Cited by 8 publications

(5 citation statements)

References 37 publications

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“…Blackcurrant leaves collected in 2019 showed the highest content of polyphenols regardless of harvest time (Table 2). Our findings are in line with data published by Kendir and Köro glu [30]. These authors also showed a higher polyphenol content in blackcurrant leaves (26,000 mg/100 g DM) than in redcurrant leaves (18,031 mg/100 g DM).…”

Section: Total Phenolic Content and Antioxidant Activitysupporting

confidence: 93%

“…This could be due to differences in extraction times. There were significant differences between time of extraction in the preparation of our samples (2 h) and extraction of up to 8 h by Kendir and Köroglu [30]. As pointed out by Zych et al [40] extending the extraction time increases the antioxidant activity against the DPPH free radicals in redcurrant leaves but decreases in blackcurrant leaf extracts.…”

Section: Total Phenolic Content and Antioxidant Activitymentioning

confidence: 71%

“…According to our results, blackcurrant leaves showed the strongest antioxidant properties in relation to the DPPH radicals in each harvest. On the contrary, Kendir and Köroglu [30] have shown that the leaves of the redcurrant shrub exhibited a greater ability to extinguish the DPPH radicals than the leaves of the blackcurrant shrub. This could be due to differences in extraction times.…”

Section: Total Phenolic Content and Antioxidant Activitymentioning

confidence: 93%

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Basic Chemical Composition and Concentration of Selected Bioactive Compounds in Leaves of Black, Red and White Currant

et al. 2021

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The aim of this study was to determine the basic chemical composition, the content of bioactive compounds and antioxidant activity in currant leaves. The leaves of black, red and white currant shrubs were collected in May, and in the beginning of June, July and August, for two years between 2018 and 2019. The proximate analysis, including dry matter, protein, fat, ash and total carbohydrates, was determined. In addition, the content of the polyphenols and the total antioxidant activity using ABTS, DPPH and FRAP assays were conducted. The highest concentration of protein was detected in the whitecurrant leaves harvested in May in both years, while the highest content of crude fat was found in the blackcurrant leaves harvested in both years, with the exception of the August harvest. Extracts from the blackcurrant leaves collected in June/July 2019 had the highest antioxidant activity that was measured by the ABTS method (about 7000 µmol Trolox/g DM) and confirmed by other methods, while extracts from the whitecurrant leaves produced from the August 2018 collection had the lowest antioxidant activity (1884 µmol Trolox/g DM). Currant leaves are a rich source of bioactive compounds and contain higher amounts of polyphenols as compared with currant fruits. These compounds may play a very important role in the risk reduction and even prevention of the most chronic non-communicable diseases. Therefore, further research is needed to identify currant leaves as a source of bioactives for functional foods and natural health products. The highest antioxidant activity was in the redcurrant leaves from all the harvest times in 2018 as measured by the ABTS and FRAP methods. On the contrary, blackcurrant leaves from all the harvest times in 2019 had the highest antioxidant activity.

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Section: Total Phenolic Content and Antioxidant Activitysupporting

confidence: 93%

Section: Total Phenolic Content and Antioxidant Activitymentioning

confidence: 71%

Section: Total Phenolic Content and Antioxidant Activitymentioning

confidence: 93%

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Basic Chemical Composition and Concentration of Selected Bioactive Compounds in Leaves of Black, Red and White Currant

et al. 2021

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“…Suzutani et al, 15 noted that phenolic compounds (such as anthocyanins) found in the extracts of Ribes species may be a key factor in the antiherpesvirus activity of these extracts. The total phenolic contents of methanol and aqueous extracts prepared from the leaves of R. uva-crispa were 273.13, 341.25 mg/g, respectively, while total phenolic contents of the methanol and aqueous extracts prepared from the leaves of R. multiflorum were 368.44, 490.63 mg/g, respectively from a study 29 .…”

Section: Resultsmentioning

confidence: 91%

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2018

IJPSR

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ABSTRACT:To find new antiviral agents from natural sources, methanol and aqueous extracts of leaves and fruits of Ribes uvacrispa and Ribes multiflorum naturally grown in Turkey were investigated as in vitro to reveal their antiviral activities against Herpes simplex virus type 1. All experiments were performed in 96-well plates and results were measured with XTT-based colorimetric assay. Results demonstrated that all extracts has no cytotocic effect on vero cells at 10000 µg/mL, while they also exhibited anti-HSV-1 activity with different percentages of protection (varying between 2.65% -50.40%) in 10000 µg/mL which was at the highest concentration in Vero cells. 50% effective concentrations (EC 50 ) of the extracts which were determined having percentage of protection against HSV-1 at concentrations lower than 10000 µg/mL were calculated using GraphPad Prism Version 5.03 statistics program with non-linear regression analysis. These extracts were determined to have EC 50 values ranging between 9710 -70600 µg/mL and selectivity index (SI) are ranging between 0.14 -1.03. On the basis of these results we believe that it would be worthwhile expanding these studies to include additional species of Turkish plants.

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“…belong to the Grossulariaceae. Currants and gooseberries are deciduous evergreen shrubs (Kendir and Koroglu, 2015) which are found in the cold and temperate regions of North America, Europe, Asia, and South America (Pfister and Sloan, 2008). Red currant (Ribes rubrum L.), black currant (Ribes nigrum L.), rock currant (Ribes petraeum L.), mountain currant (Ribes alpinum L.), and oriental gooseberry (Ribes orientale L.) are all found in the flora of Turkey (Ercisli, 2004).…”

Section: Vaccinium Spp: Caucasian Whortleberry (Vaccinium Arctostaphy...mentioning

confidence: 99%

Wild Edible Small Fruits in Turkey and their Fruit Characteristics

Yalcin

Bassil

Kafkas

2022

Proceedings of the Latvian Academy of Sciences. Section B. Natural, Exact, and Applied Sciences.

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Wild fruits are essential genetic resources for fruit breeding and have either been domesticated or used to introgress disease resistance and tolerance to abiotic and biotic stress. Numerous studies have previously described the health benefits of wild berry fruits and reported their antioxidant, anti-inflammatory, antimicrobial, and anticancer activity. Turkey has a rich plant biodiversity thanks to its geographic location and encirclement by three seas, leading to a wide variety of climates. The great ecological diversity of the wild berry species in Turkey is a significant bio-gene pool that is vital to human life and can serve as a source of agricultural development in the future. This review aims to introduce some of the wild edible berry species naturally occurring in Turkey such as Morus spp., Hippophae rhamnoides L., Viburnum opulus L., Rubus idaeus L., Rubus fruticosus L., Sambucus nigra L., Vaccinium spp., Arbutus unedo L., Ribes spp., and Fragaria vesca L., and describe their distribution, uses, and fruit characteristics. Conservation of these wild fruit genetic resources is necessary for use in breeding for novel traits.

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In vitro Antioxidant Effect of the Leaf and Branch Extracts of Ribes L. Species in Turkey

Cited by 8 publications

References 37 publications

Basic Chemical Composition and Concentration of Selected Bioactive Compounds in Leaves of Black, Red and White Currant

Basic Chemical Composition and Concentration of Selected Bioactive Compounds in Leaves of Black, Red and White Currant

Untitled

Wild Edible Small Fruits in Turkey and their Fruit Characteristics

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