scholarly journals Phytochemical Content and Antioxidant Activity in Wild Grape (Ampelocissus martini Planch.) Root Extracts

2019 ◽  
Vol 35 (6) ◽  
pp. 1690-1694
Author(s):  
Prasong Srihanam ◽  
Patthraporn Siripipatthana
Keyword(s):  
Antioxidant Activity ◽  
Total Phenolic ◽  
Gel Chromatography ◽  
Phytochemical Content ◽  
Wild Grape ◽  
Solvent Systems ◽  
Phytochemical Profile ◽  
Silica Gel Chromatography ◽  
High Level ◽  
Phenolic And Flavonoid

The factionated extracts of wild grape (Ampelocissus martini Planch.) roots by silica gel chromatography eluting with different solvent systems were firstly prepared, and then were assayed for their phytochemical contents and antioxidant activity. A high level of total phenolic and flavonoid content were found in both crude extract and chromatographic fractions. The ethyl acetate: methanol (75:25 %v/v) fraction had the highest of total phenolic and flavonoid as well as antioxidant activity assessed all methods, except ABTS assay. This indicated that eluting solvents directly affected phytochemical profile and activity. Moreover, the phenolic and flanonoid substances showed highly possitive correlation coefficient (r) to antioxidant activity. This suggested that the wild grape root is a natural source containing high phytochemicals with antioxidant activity which might be used as active ingredient for health supporting.

scholarly journals Differences in Parts of Purslane Plants (Portulaca grandiflora Hook.) To Total Phenolic and Flavonoid Content and Antioxidant Activity

2020 ◽  
Vol 7 (1) ◽  
pp. 10
Author(s):  
Husnawati ◽  
Ukhradiya Magharaniq Safira Purwanto ◽  
Aulia Ayu Rispriandari
Keyword(s):  
Antioxidant Activity ◽  
The Body ◽  
Total Phenolic ◽  
Flavonoid Content ◽  
Phytochemical Content ◽  
Plant Parts ◽  
Ic50 Value ◽  
Portulaca Grandiflora ◽  
Flower Organs ◽  
Phenolic And Flavonoid

Antioxidant are needed to prevent free radical inside the body and oxidative stress that promotes the aging process and various degenerative diseases. Portulaca grandiflora Hook. is known to have potential as antioxidant. Differences in plant parts can cause differences in phytochemical content, which can affect its antioxidant activity. This study aims to measure total phenolic and flavonoid content in leaf, old stem, young stem, and flower organs of purslane plant (Portulaca grandiflora Hook.) which is extracted using ethanol 96% and determined the antioxidant activity of the extract with DPPH methode. The result showed that each plant organ of purslane contains different concentration of phenolic and flavonoid compounds. The highest total phenolic and flavonoid content was found in the leaves( 113.26 ± 3.85 mg GAE/g and 97.99 ± 1.28 mg QE/g), but the highest antioxidant activity was found in the old stem with IC50 value 122.15 ± 1.30 ppm (classified as medium antioxidant).   Keywords: Antioxidant, Flavonoid, Phenolic, Portulaca grandiflora Hook.

scholarly journals Phytochemical Content, Antioxidant, Alpha-Glucosidase Inhibitory and Antibacterial Activities of Spineless Cactus Pear Cultivars

Plants ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 1312
Author(s):  
Mologadi B. Mabotja ◽  
Sonja L. Venter ◽  
Christian P. Du Plooy ◽  
Tukayi Kudanga ◽  
Stephen O. Amoo
Keyword(s):  
Antioxidant Activity ◽  
Antibacterial Activity ◽  
Radical Scavenging ◽  
Antibacterial Activities ◽  
Total Phenolic ◽  
Cactus Pear ◽  
Phytochemical Content ◽  
E Coli ◽  
Alpha Glucosidase ◽  
Phenolic And Flavonoid

Variation in cultivars can influence plant biological activities. This study aimed to identify superior cultivars while determining the variability in the phytochemical content, antioxidant, alpha-glucosidase inhibitory and antibacterial activities of cladode extracts from selected spineless Burbank cactus pear (Opuntia ficus-indica and Opuntia robusta) cultivars. Total phenolic and flavonoid contents were determined using the Folin-Ciocalteu and aluminum chloride spectrophotometric methods, respectively. Antioxidant activity was investigated using 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging and β-carotene linoleic acid assays. Alpha-glucosidase inhibition was determined using a spectrophotometric method and antibacterial activity using a non-polar (petroleum ether) and polar (50% methanol) extracts against two Gram-positive and two Gram-negative bacteria. Significant variation in phytochemical content, antioxidant, antidiabetic and antibacterial activities was observed amongst the cultivars. Alpha-glucosidase inhibitory activity varied widely with IC50 values ranging from 0.06 to 1.85 mg/mL. Radical scavenging activity of Polypoly cultivar was about seven fold higher than that recorded in other cultivars with low activity. Turpin and Berg x Mexican cultivars had the highest total phenolic and flavonoid contents, whilst the non-polar extract of Turpin also exhibited higher antibacterial activity against Bacillus subtilis and Escherichia coli. Sicilian Indian Fig was amongst the cultivars with a higher antioxidant activity, whilst also showing a strong inhibition against B. subtilis and E. coli. Polypoly cultivar demonstrated strong antioxidant and antidiabetic activities while its polar extract showed the highest total antibacterial activity against B. subtilis. The cultivar Malta was superior in terms of its antibacterial potency and efficacy against B. subtilis, Staphylococcus aureus and E. coli. The potential of using spineless cactus pear cladodes as a functional food with antioxidant, antidiabetic and antibacterial properties against pathogenic food spoilage bacteria in place of synthetic compounds was established. The significance of cultivar selection to increase this potential was highlighted.

scholarly journals Fractionation and Identification of Phytochemicals and Antioxidant Activity of Wild Grape (Ampelocissus martinii Planch.) Seed Extracts

2020 ◽  
Vol 32 (7) ◽  
pp. 1703-1707
Author(s):  
P. Siripipatthana ◽  
P. Srihanam
Keyword(s):  
Antioxidant Activity ◽  
Ethyl Acetate ◽  
Antioxidant Activities ◽  
Grape Seed ◽  
Gel Chromatography ◽  
Positive Trend ◽  
Wild Grape ◽  
Phenolic Substances ◽  
Silica Gel Chromatography ◽  
Seed Extracts

A methanolic extract of wild grape (Ampelocissus martinii Planch.) seed at green (immature) growth stage was partially purified using silica gel chromatography, before the investigation of total phytochemicals and antioxidant activity of sub-fractions. The ethyl acetate/methanol at 3:1 (v/v) fraction had higher phytochemicals and antioxidant activities than others. The gallic acid, myricetin, and resveratrol were dominant phenolic substances in this fraction. However, ethyl acetate sub-fraction found the highest content of epicatechin and catechin. A correlation test indicated a strong positive trend between antioxidant activity and all tested of the phytochemical contents. The obtained results indicated that the wild grape seed contains compounds with excellent antioxidation capacity. That might be applied as an active ingredient in health-supporting products or active ingredients in cosmetics

scholarly journals Karakterisasi dan Aktivitas Antioksidan Tepung Sagu Baruk (Arenga microcarpha)

Jurnal MIPA ◽  
2015 ◽  
Vol 4 (2) ◽  
pp. 125
Author(s):  
Elisa Putri Tarigan ◽  
Lidya Irma Momuat ◽  
Edi Suryanto
Keyword(s):  
Antioxidant Activity ◽  
Free Radical ◽  
Radical Scavenging Activity ◽  
Radical Scavenging ◽  
Free Radical Scavenging ◽  
Total Phenolic ◽  
Chemical Characteristics ◽  
Scavenging Activity ◽  
Phytochemical Content ◽  
Phenolic And Flavonoid

Tujuan penelitian ini adalah untuk mempelajari karakteristik kimia tepung sagu baruk yang mengandung senyawa fitokimia dan mempelajari aktivitas antioksidan dari ekstrak tepung sagu baruk. Tepung sagu baruk diekstrak dengan pelarut etanol 50% dengan cara maserasi selama 24 jam. Setelah itu, tepung sagu diuji  proksimat, ekstrak dianalisis kandungan fitokimia fenolik, flavonoid dan tanin terkondensasi. Pengujian aktivitas antioksidan menggunakan radikal bebas DPPH dan daya reduksi dengan spektrofotometer UV/Vis. Hasil penelitian menunjukkan pada pengujian proksimat bahwa tepung tepung sagu baruk memenuhi syarat Standar Nasional Indonesia, tetapi berbeda dengan kadar serat kasar. Total kandungan fenolik dan flavonoid  menunjukkan bahwa tepung sagu akuades (SA) lebih tinggi daripada tepung sagu komersial (TSBK). Hasil radikal bebas sagu tepung sagu SA lebih tinggi dari TSBK sama halnya dengan kemampuan daya reduksi SA jauh lebih tinggi dari TSBK. Hasil penelitian ini menyimpulkan bahwa tepung sagu baruk memiliki kandungan fitokimia fenolik dan flavonoid yang dapat berpotensi sebagai antioksidan.Objectives of this research were to study the chemical characteristics of sago baruk flour containing phytochemicals and antioxidant activity of sago baruk flour extract. Sago baruk flour was extracted with 50% ethanol by maceration for 24 hours. Afterward, sago flour was tested for proximate and the extract was analyzed for phenolic, flavonoids, and condensed tanin. DPPH free radical was used to examine antioxidant activity and spectrophotometry method was used to determine the reduction ability. The result for proximate test showed that sago flour extract meets Indonesian Nasional Standard requirements. Total phenolic and flavonoid contents in the flour extracted with aquadest (SA) were higher than that in commercial flour (TSBK). Free radical scavenging activity of sago flour SA was higher than that of TSBK, as well as the reduction ability of SA that was much higher than of TSBK. It was concluded that sago baruk flour possess phytochemical content of phenolic and flavonoid which were potential as antioxidant.

scholarly journals Comparative Study on Seed Characteristics, Antioxidant Activity, and Total Phenolic and Flavonoid Contents in Accessions of Sorghum bicolor (L.) Moench

Molecules ◽  
2021 ◽  
Vol 26 (13) ◽  
pp. 3964
Author(s):  
Bimal-Kumar Ghimire ◽  
Ji-Won Seo ◽  
Chang-Yeon Yu ◽  
Seung-Hyun Kim ◽  
Ill-Min Chung
Keyword(s):  
Antioxidant Activity ◽  
Agronomic Traits ◽  
Germination Rate ◽  
Antioxidant Properties ◽  
Radical Scavenging ◽  
Extensive Study ◽  
Total Phenolic ◽  
Phytochemical Content ◽  
Seed Characteristics ◽  
Seed Extracts

Sorghum is a major cereal food worldwide, and is considered a potential source of minerals and bioactive compounds. Its wide adaptive range may cause variations in its agronomic traits, antioxidant properties, and phytochemical content. This extensive study investigated variations in seed characteristics, antioxidant properties, and total phenolic (TPC) and flavonoid contents (TFC) of sorghum collected from different ecological regions of 15 countries. The antioxidant potential of the seed extracts of various sorghum accessions was determined using 1,1-diphenyl-2-picrylhydrazyl (DPPH) and 2,2′-azinobis 3-ethylbenzothiazoline-6-sulfonate (ABTS) radical scavenging assays. Significant variations in TPC were observed among the sorghum accessions. All 78 sorghum accessions used in this study exhibited significant variations in TFC, with the lowest and highest amount observed in accessions C465 and J542, respectively. DPPH scavenging potential of the seed extracts for all the accessions ranged from 11.91 ± 4.83 to 1343.90 ± 81.02 µg mL−1. The ABTS assay results were similar to those of DPPH but showed some differences in the accessions. Pearson’s correlation analysis revealed a wide variation range in the correlation between antioxidant activity and TPC, as well as TFC, among the sorghum accessions. A wide diversity range was also recorded for the seed characteristics (1000-seed weight and seed germination rate). A dendrogram generated from UPGMA clustering, based on seed traits, antioxidant activity, TPC, and TFC was highly dispersed for these accessions. Variations among the accessions may provide useful information regarding the phytoconstituents, antioxidant properties, and phytochemical contents of sorghum and aid in designing breeding programs to obtain sorghum with improved agronomic traits and bioactive properties.

scholarly journals NEW FLAVONOIDS FROM THE AERIAL PARTS OF POLYGONUM EQUISETIFORME SM (POLYGONACEAE)

2017 ◽  
Vol 9 (2) ◽  
pp. 166 ◽  
Author(s):  
Sayed A. El-toumy ◽  
Joslin Y. Salib ◽  
Nabila H. Shafik ◽  
Asmaa S. Abd Elkarim ◽  
Gihan A. Mick
Keyword(s):  
Antioxidant Activity ◽  
Methyl Ester ◽  
Secondary Metabolites ◽  
Gallic Acid ◽  
Total Phenolic ◽  
Flavonoid Content ◽  
Isolation And Identification ◽  
Aerial Parts ◽  
Dpph Method ◽  
Phenolic And Flavonoid

<p><strong>Objective: </strong>The current study was to deal the isolation and identification of secondary metabolites from <em>Polygonum equisetiforme</em> and evaluation of antioxidant activity of its extract.</p><p><strong>Methods: </strong>The methanol-water extract (7:3) of the air-dried aerial parts of <em>Polygonum equisetiforme</em> was fractionated and separated to obtain the isolated compounds by different chromatographic techniques. Structures of these compounds were elucidated by UV and 1D⁄2D H⁄ C NMR spectroscopy and compared with the literature data. The crude extract was evaluated for <em>in vitro</em> antioxidant activity using the 2,2 diphenyl dipicryl hydrazine (DPPH) method.</p><p><strong>Results: </strong>Ten secondary metabolites were isolated from <em>Polygonum equisetiforme</em> in this study. Of which three new flavonoids named as 3,5,7,2’,5’ pentahydroxyflavone 3-<em>O</em>-b-D-glucopyranoside (1), 3,5,7,2’,5’ pentahydroxyflavone 3-<em>O</em>-b-D-glucopyranoside 8 C-sulphated (2) and quercetin 3-<em>O-β</em>-D-glucucorinde 6''-methyl ester 8-sulphated (3) as well as quercetin 3-<em>O-β</em>-D-glucucorinde methyl ester (4), quercetin 3-<em>O-</em>β-D-glucopyranoside (5), quercetin 7-<em>O-β-</em>D-glucopyranoside (6),<em> </em>quercetin(7)<sub>, </sub>myricetin (8), <em>P</em><sub>-</sub>methoxy gallic acid methyl ester (9) and gallic acid (10). The antioxidant potential of <em>P. equisetiforme</em> extract was evaluated by investigating it's total phenolic and flavonoid content and DPPH radical scavenging activity whereby the extract showed significant antioxidant activity (IC<sub>50 </sub>= 37.45 μg/ml). The total phenolic and flavonoid content was found to be 130.79±5.502 and 45.8±1.63 μg/ml, respectively.</p><p><strong>Conclusion: </strong><em>Polygonum equisetiforme</em> is a promising medicinal plant, and our study tends to support the therapeutic value of this plant as an antioxidant drug.</p>

scholarly journals Chemical Composition, Production of Secondary Metabolites and Antioxidant Activity in Coffee Cultivars Susceptible and Partially Resistant to Bacterial Halo Blight

Plants ◽  
2021 ◽  
Vol 10 (9) ◽  
pp. 1915
Author(s):  
Joyce Alves Goulart da Silva ◽  
Mário Lúcio Vilela de Resende ◽  
Ingridy Simone Ribeiro ◽  
Adriene Ribeiro Lima ◽  
Luiz Roberto Marques Albuquerque ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Chemical Composition ◽  
Secondary Metabolites ◽  
Pseudomonas Syringae ◽  
Total Phenolic ◽  
Leaf Extracts ◽  
Defense Strategies ◽  
Halo Blight ◽  
Phenolic Profiles ◽  
Phenolic And Flavonoid

Coffee production is one of the main agricultural activities in Brazil, and several coffee cultivars with disease resistance have already been developed. The secondary metabolites produced by plants are closely associated with defense strategies, and the resistance of coffee cultivars to bacterial halo blight (BHB) can be related to these compounds. Therefore, this study aims to compare a partially resistant coffee cultivar (Iapar-59) and a susceptible cultivar (Mundo Novo 376/4) to BHB (Pseudomonas syringae pv. garcae) in relation to the chemical composition and antioxidant activity of the leaf extracts. In addition, this study determined the total phenolic and flavonoid contents and phenolic profiles of the Iapar-59 leaf extracts of plants inoculated with P. syringae pv. garcae. The Iapar-59 extract showed a higher content of phenolic compounds and flavonoids than the Mundo Novo 376/4 extract. Both cultivars contained gallic, chlorogenic and caffeic acids; however, the highest contents were quantified in the Iapar-59 cultivar. The leaf extracts from the Iapar-59 cultivar exhibited higher antioxidant activity. Higher concentrations of gallic, caffeic and chlorogenic acids and the presence of vanillin were detected in the extract of cultivar Iapar-59 inoculated with P. syringae pv. garcae.

scholarly journals Total phenolic and flavonoid compounds, antioxidant and toxicity profile of extract and fractions of paku atai tuber (Angiopteris ferox Copel)

Food Research ◽  
2019 ◽  
pp. 734-740
Author(s):  
Nur S. ◽  
F. Mubarak ◽  
C. Jannah ◽  
D.A. Winarni ◽  
D.A. Rahman ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Crude Extract ◽  
Iron Reduction ◽  
Colorimetric Method ◽  
Total Phenolic ◽  
Toxicity Profile ◽  
Flavonoid Content ◽  
Ic50 Value ◽  
Phenolic And Flavonoid ◽  
Phenolic And Flavonoid Compounds

Paku atai plant (Angiopteris ferox Copel), specifically the tuber has been used empirically as an anticancer and antidote materials by Dayaknese in West Kutai, with limited scientific study. Thus, this research had been conducted to determine and evaluate the total phenolic, flavonoid content of this plant along with the antioxidant and toxicity profile. The research used several extracts’ solvents including extraction with ethanol (crude extract, CE) and subsequently partitioned with n-hexane (HF); ethyl acetate (EF) and ethanol aqueous (EAF). The resulted crude extract and fractions were then analyzed through colorimetric method to determine the phenolic and flavonoid total; with DPPH and FRAP to observe the antioxidant activity; and using BSLT method to evaluate the toxicity activity. The results showed that the EF fraction provided the strongest antioxidant activity with IC50 value of 13.79 μg/mL and iron reduction with FRAP value of 387.5±6.41 µM/g. However, a high correlation was observed between the antioxidant and the total phenolic content (r2 = 0.970 - 0.974) but little correlation in total flavonoid (r2 = 0.345 - 0.373). Furthermore, the EF (19.56±7.35) showed the highest toxicity activity followed by CE (22.42±2.10), HF (39.52±7.38), and EAF (41.75±5.10). Therefore, the paku atai tuber can be potentially developed as a natural antioxidant and anticancer material.

scholarly journals Analysis of antioxidant activity, total phenolic and flavonoid contents of ethanol extract of Litsea cubeba Lour. Bark

2021 ◽  
Vol 332 ◽  
pp. 08005
Author(s):  
Aminah Dalimunthe ◽  
Dewi Pertiwi ◽  
Mahatir Muhammad ◽  
Denny Satria
Keyword(s):  
Antioxidant Activity ◽  
Free Radicals ◽  
Ethanol Extract ◽  
The Body ◽  
Total Flavonoid ◽  
Total Phenolic ◽  
Antioxidant Power ◽  
Litsea Cubeba ◽  
Ferric Reducing Antioxidant Power ◽  
Phenolic And Flavonoid

Free radicals also play a role in the pathology of various degenerative diseases such as cancer, rheumatism, coronary heart disease, cataracts, and others. Free radicals can come from within the body (endogenous) and outside the body (exogenous). Litsea cubeba (Lour,) is a Lauraceae family plant which have contents volatile oils which used as antimicrobial, anticancer on breast cancer, pesticide, antideppressants, antiinflammation, antioxidant, and neuro pharmacology. The extract was prepared using water with the soxhletation method. The antioxidant activity was determined with the 1,1-diphenyl-2-picrylhydrazyl (DPPH), 2,2’-Azinobis [3-ethylbenzothiazoline-6)-sulfonic acid] -diammonium salt (ABTS) and Ferric Reducing Antioxidant Power (FRAP) methods. Total flavonoid and total phenolic content were determined with colorimetric methods. Antioxidant activity measured as IC50 was 23.37 ± 0.42 µg/mL; 111.21 ± 0.42 and 109.01 ± 0.28 respectively. The extract was found to contain high levels of total phenolic (282.93 ± 0.33 mg GAE/g) and total flavonoid 7.49 ± 0.51 mg QE/g). The results reveal that ethanol extract of Litsea cubeba Lour. Bark has antioxidant potential. The further analysis is to isolation antioxidant compound.

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