scholarly journals STUDIES ON NUTRITIONAL PROFILE AND ANTIOXIDANT POTENTIAL OF DIFFERENT DIOSCOREA SP WITH PLECTRANTHUS ROTUNDIFOLIUS

2017 ◽  
Vol 9 (4) ◽  
pp. 65 ◽  
Author(s):  
Jenit K. Joy ◽  
P. Siddhuraju
Keyword(s):  
Nutritive Value ◽  
Radical Scavenging Activity ◽  
Antioxidant Properties ◽  
Radical Scavenging ◽  
Ethanolic Extract ◽  
Antioxidant Potential ◽  
Nutritional Requirement ◽  
Health Food ◽  
Antioxidant Defence System

Objective: Protection from oxidative damage to the tissues is provided by natural or synthetic antioxidants. Because of the multiple mechanisms of actions and presence of various phytochemicals, plant-based antioxidants are preferred. Dioscorea is well known as a traditional edible tuber. The present study was undertaken to explore and highlights the nutritional benefits and to evaluate the in vitro antioxidant and free radical scavenging capacity of ethanolic extract of three different underutilised Dioscorea species (D. alata, D. pentaphylla and D. oppositifolia) with a common cultivated crop, Plectranthus rotundifolius.Methods: Different processing methods are adopted to assess their influence on nutritive value and antioxidant properties. Tubers were studied for proximate composition using standard analytical methods. Mineral elements were analysed using ICP-MS (Inductively Coupled Plasma-Mass Spectrometer). Antioxidant potential of raw and processed samples was determined using a range of in vitro models.Results: The presence of essential minerals such as Na, K, Ca, P, Zn and Mn were observed. High radical scavenging activity was observed in the tubers of Dioscorea. Results indicated that phenolic compounds are the significant contributors to the antioxidant activity.Conclusion: Current study suggests that Dioscorea might be a promising natural antioxidant and could be very useful health food, as they enhance the antioxidant defence system. It also proposes that underutilized tubers can efficiently contribute to the nutritional requirement and food security. 

scholarly journals In Vitro Antidiabetic Effects and Antioxidant Potential ofCassia nemophilaPods

2018 ◽  
Vol 2018 ◽  
pp. 1-6 ◽  
Author(s):  
Gauhar Rehman ◽  
Muhammad Hamayun ◽  
Amjad Iqbal ◽  
Saif Ul Islam ◽  
Saba Arshad ◽  
...  
Keyword(s):  
Glucose Uptake ◽  
Radical Scavenging Activity ◽  
Antioxidant Properties ◽  
Radical Scavenging ◽  
Antioxidant Potential ◽  
Yeast Cells ◽  
In Vitro Assays ◽  
Dpph Radical ◽  
Dpph Radical Scavenging

The antidiabetic and antioxidant potential of ethanolic extract ofCassia nemophilapod (EECNP) was evaluated by three in vitro assays, including yeast glucose uptake assay, glucose adsorption assay, and DPPH radical scavenging activity. The result revealed that the extracts have enhanced the uptake of glucose through the plasma membrane of yeast cells. A linear increase in glucose uptake by yeast cells was noticed with gradual increase in the concentration of the test samples. Moreover, the adsorption capacity of the EECNP was directly proportional to the molar concentration of glucose. Also, the DPPH radical scavenging capacity of the extract was increased to a maximum value of 43.3% at 80 μg/ml, which was then decreased to 41.9% at 100 μg/ml. From the results, it was concluded that EECNP possess good antidiabetic and antioxidant properties as shown by in vitro assays.

Synthesis, Characterization, Antimicrobial and Antioxidant Potential of Diazenyl Chalcones

2018 ◽  
Vol 18 (10) ◽  
pp. 844-856 ◽  
Author(s):  
Harmeet Kaur ◽  
Balasubramanian Narasimhan
Keyword(s):  
Radical Scavenging Activity ◽  
Radical Scavenging ◽  
Antioxidant Potential ◽  
Dilution Method ◽  
Dpph Assay ◽  
Antimicrobial Potential ◽  
Structural Conformation ◽  
Uv Visible ◽  
Tube Dilution Method

A series of diazenyl chalcones was prepared by base catalyzed Claisen-Schmidt condensation of synthesized hydroxy substituted acetophenone azo dye with various substituted aromatic/ heteroaromatic aldehydes. The structural conformation of synthesized chalcones was done by a number of physicochemical and spectral means like FTIR, UV-visible, mass, NMR spectroscopy and CHNS/O analysis. These diazenyl chalcones were assessed for their in vitro antimicrobial potential against several Gram-negative, Gram-positive bacterial and fungal strains by serial tube dilution method. The fluconazole and cefadroxil were used as standard drugs. The target compounds were also evaluated for their antioxidant potential by DPPH assay. (2E)-3-(2,4-Dichlorophenyl)-1-(4-((2,6- dihydroxyphenyl)diazenyl)phenyl)prop-2-en-1-one (C-7) had shown very good antimicrobial potential with MIC ranges from 3.79 to 15.76 μg/ml against most of the tested microorganisms. Most of the synthesized diazenyl chalcones were found to be active against B. subtilis. The (2E)-1-(5-((2-Chloro- 4-nitrophenyl)diazenyl)-2-hydroxyphenyl)-3-(2-hydroxynaphthalen-1-yl)prop-2-en-1-one (C-10) had shown high free radical-scavenging activity when compared with the ascorbic acid as the reference antioxidant.

Strong antihemolytic and antioxidant properties of aqueous extract from Algerian Hammada elegans (Bge.) Botsch (Chenopodiaceae)

2021 ◽  
Vol 17 ◽  
Author(s):  
Brahim Asseli ◽  
Reguia Mahfoudi ◽  
Amar Djeridane ◽  
Mohamed Yousfi
Keyword(s):  
Free Radical ◽  
Aqueous Extract ◽  
Radical Scavenging Activity ◽  
Condensed Tannin ◽  
Antioxidant Properties ◽  
Radical Scavenging ◽  
Total Phenolic ◽  
Dependent Manner ◽  
Vitro Assay

Background: Research on medicinal plant antioxidants has emerged as a potential therapeutic to prevent free radical generated damage in the human body. Hammada elegans Botsch (popularly known as “Ajram”) is a xerophytic plant widely found in Laghouat region, but there are only a few reports about the biological or chemical properties of these species. Hence, the aim of this study is to investigate the antioxidant and the antihemolytic activities of hexanic, acetonic, methanolic and aqueous extracts of aerial parts of Algerian Hammada elegans Botsch by employing different in vitro assay systems. Methods: The total phenolic content, the flavonoid content and the condensed tannin amount were analyzed using Folin-Ciocalteu, aluminum chloride and vanillin assays, respectively. The in vitro antioxidant capacity of extracts was assessed by CUPRAC, iron chelating, ABTS•+and antihemolytic assays, and was expressed as EC50 values. Results: Among the analyzed extracts, the aqueous extract had the highest phenolic, flavonoid and tannin contents. Also, this extract displayed the highest antioxidant capacities compared to the other extracts and standards. Its EC50 value for ABTS radical-scavenging activity was 0.265 ± 0.003 mg/L. Moreover, this extract showed high iron (II) chelating ability (EC50 = 0.958 ± 0.001 mg/L), and good antioxidant activity in the cupric ion reducing activity (CUPRAC) in a concentration dependent manner (EC50 were 0.709 ± 0.002 mg/L). Additionally, this extract had the best antihemolytic activity against AAPH-induced hemolysis (EC50=0.090 ± 0.004 mg/L). Conclusion: Our study revealed that the aqueous extract of Hammada elegans Botsch, is a potential source of antioxidants which possess a high protective effect of membrane against free radical.

scholarly journals ANTIOXIDANT PROPERTIES OF SINAPIC ACID: IN VITRO AND IN VIVO APPROACH

2017 ◽  
Vol 10 (6) ◽  
pp. 255 ◽  
Author(s):  
Nithya R ◽  
Subramanian S
Keyword(s):  
Antioxidant Properties ◽  
Intraperitoneal Administration ◽  
Radical Scavenging ◽  
Sinapic Acid ◽  
Lipid Peroxides ◽  
Diabetic Rats ◽  
Antioxidant Potential ◽  
Protein Carbonyls

Objective: This study was aimed to evaluate the antioxidant potential of sinapic acid in both in vitro and in vivo. Recently, we have reported that oral administration of sinapic acid (3,5-dimethoxy 4-hydroxycinnamic acid) an active phyto ingredient widely distributed in rye, mustard, berries, and vegetables has been shown to ameliorate hyperglycemia.Methods: Experimental Type 2 diabetes was induced in male Wistar rats by feeding high-fat diet to induce insulin resistance followed by intraperitoneal administration of a single low dose streptozotocin (35 mg/kg body weight [bw]). Sinapic acid was administered orally at a concentration of 25 mg/kg bw/rat/day for 30 days, and its efficacy was compared with metformin. In vitro, antioxidant scavenging properties of sinapic acid were determined using 1,1-diphenyl-2-picrylhydrazyl (DPPH), 2,2’-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) (ABTS), superoxide, and nitric oxide (NO) assay.Results: Sinapic acid treatment showed a significant decline in the levels of lipid peroxides, hydroperoxides and protein carbonyls in the plasma and vital tissues of diabetic rats. The treatment also improved the antioxidant status in diabetic rats indicating the antioxidant potential of sinapic acid. In addition, the results of DPPH, ABTS, superoxide, and NO radical scavenging assays substantiate the free radical scavenging efficacy of sinapic acid.Conclusion: The results of this study evidenced that sinapic acid possess significant antioxidant properties which in turn may be responsible for its antidiabetic properties.

scholarly journals Phytochemical Screening and in vitro Antioxidant Properties of Methanol and Aqueous Leaf Extracts of Geophila obvallata

2018 ◽  
pp. 1-11
Author(s):  
Iserhienrhien Lucky Osafanme ◽  
Okolie Paulinus Ngozi
Keyword(s):  
Aqueous Extract ◽  
Methanol Extract ◽  
Radical Scavenging Activity ◽  
Antioxidant Properties ◽  
Radical Scavenging ◽  
Scientific Basis ◽  
Phytochemical Analysis ◽  
Leaf Extracts ◽  
Reducing Ability

Aim: This study investigated the phytochemical constituents and in vitro antioxidant properties of methanol and aqueous leaf extracts of Geophila obvallata using standard methods. Materials and Methods: The in vitro antioxidant assays carried out were 1, 1‐diphenyl‐2‐picrylhydrazyl (DPPH) radical scavenging ability, Nitric oxide (NO•) radical scavenging activity assay, 2, 2'-azino-bis (3-ethylbenzthiazoline-6-sulphonic acid) (ABTS•+) radical cation scavenging assay, ferric reducing properties and hydroxyl radical scavenging assays. Results: Phytochemical analysis revealed the presence of alkaloids, flavonoids, phenolic compounds, steroids, saponins, terpernoids and cardiac glycosides in both extracts. Relative to the aqueous extract, the methanol extract contained a higher amount of the secondary metabolites. However, both extracts exhibited appreciable and dose-dependent capacities for quenching DPPH, ABTS•+ and NO• free radicals, and potent ferric reducing ability to levels comparable to those of ascorbic acid. The crude methanol extract showed significantly increased (P<0.05) antioxidant activity than the aqueous extract. Conclusion: It was concluded that the extract possesses strong antioxidant properties due to its content of phytochemicals, and provides scientific basis for its ethno medicinal applications.

scholarly journals In vitro inhibitory potentials of ethanolic extract of Moringa oleifera flower against enzymes activities linked to diabetes

2021 ◽  
Vol 10 (4) ◽  
pp. 408-414
Author(s):  
Oluwaseun Ruth Olasehinde ◽  
Olakunle Bamikole Afolabi ◽  
Benjamin Olusola Omiyale ◽  
Oyindamola Adeniyi Olaoye
Keyword(s):  
Free Radical ◽  
Moringa Oleifera ◽  
Antioxidant Properties ◽  
Radical Scavenging ◽  
Ethanolic Extract ◽  
Antidiabetic Activity ◽  
Dependent Manner ◽  
Concentration Dependent Manner ◽  
Antioxidant Power

Introduction: Diabetes mellitus (DM) has been recognized as the seventh leading cause of global mortality; however, researchers seek alternative means to manage the menace. The current study sought to investigate antioxidant potentials, α-amylase, and α-glucosidase inhibitory activities of ethanolic extract of Moringa oleifera flower in vitro. Methods: Antioxidant properties of the extract were appraised by assessing its inhibition against 1,1-diphenyl-2-picrylhydrazyl (DPPH), hydroxyl (OH•), and hydrogen peroxide (H2O2) free radicals, as well as ferric reducing antioxidant power (FRAP), the antidiabetic activity was evaluated by α-amylase and α-glucosidase inhibition.Results: In this study, ethanolic extract of M. oleifera flower demonstrated a significant (P < 0.05) inhibition against DPPH free radical (43.57–83.56%) in a concentration-dependent manner, while FRAP (101.76 ± 1.63 mg/100 g), OH• scavenging ability (71.62 ± 0.95 mg/100 g), and H2O2 free radical scavenging capacity (15.33 ± 1.20 mg/100 g) were also observed. In the same manner, ethanolic extract of M. oleifera flower revealed a significant (P < 0.05) inhibition against α-amylase (IC50= 37.63 mg/mL) and α-glucosidase activities (IC50= 38.30 mg/mL) in the presence of their respective substrates in a concentration-dependent manner in comparison with acarbose. Conclusion: Ethanoic extract of M. oleifera flower could be useful as an alternative phytotherapy in the management of DM, having shown a strong antioxidative capacity and substantial inhibition against the activities of key enzymes involved in carbohydrate hydrolysis in vitro.

scholarly journals Determination of in vitro antioxidant activity of the leaves extracts of Ehretia pubescens

2020 ◽  
Vol 11 (4) ◽  
pp. 6262-6267
Author(s):  
Krishnamoorthy Meenakumari ◽  
Giridharan Bupesh ◽  
Mayur Mausoom Phukan
Keyword(s):  
Antioxidant Activity ◽  
Ethyl Acetate ◽  
Radical Scavenging Activity ◽  
Antioxidant Properties ◽  
Radical Scavenging ◽  
Reducing Power ◽  
Biological Properties ◽  
Scavenging Activity ◽  
Reducing Power Assay

The foods from plants were known to ensure against degenerative diseases and maturing because of their antioxidant activitycredited to their high content. Information on antioxidant activity of Indian medicinal plant is abundant. To the best of our knowledge, biological properties have not been accounted in the literature for this species of . As a point, this is the first results to assess the anti-oxidant activity of the plant which belongs to the family . The antioxidant activity of Methanol, , Ethyl acetate and Aqueous extracts of E. was determined using the DPPH free radical scavenging activity, ABTS radical scavenging activity and reducing power assay. The DPPH scavenging activity showed higher activity observed in extract (63%) of E. than (54%), (44%) and aqueous (30%). the ABTS assay inhibition in extract (58%) than (43%), (38%) and aqueous (32%) extracts. The reducing power assay of different extracts was increased in extract (54%) than (40%), (34%) and aqueous (28%) extracts. Overall, the and ethyl acetate extract had higher antioxidant properties than other extract. However, in this study, extracts exhibit great potential for antioxidant activity and may be useful for their nutritional and medicinal functions.

In vitro antioxidant activity and phytochemical analyses of Acalypha godseffiana (Euphobiaceae) leaf extracts

2021 ◽  
Vol 25 (1) ◽  
pp. 75-79
Author(s):  
S.O. Olubodun ◽  
G.E. Eriyamremu ◽  
M.E. Ayevbuomwan ◽  
C.I. Nzoputa
Keyword(s):  
Antioxidant Activities ◽  
Radical Scavenging Activity ◽  
Antioxidant Properties ◽  
Radical Scavenging ◽  
Antioxidant Vitamin ◽  
Phytochemical Analysis ◽  
Leaf Extracts ◽  
Anti Oxidant ◽  
In Vitro Antioxidant Activity

The presence of various bioactive components makes it necessary to analyse plants for their potential to act as a source of useful treatments and cures for many inflammatory, infectious and pathogenic diseases. This study was carried out to determine phytochemicals and in-vitro antioxidant activities of the leaf extracts of Acalypha godseffiana. The leaves of A. godseffiana were collected, dried, pulverized and extracted separately with methanol and water using maceration method. The extract was concentrated in vacuo with rotary evaporator at 40oC. The extracts were subjected to quantitative phytochemical analysis and different anti-oxidant analytical procedures like FRAP, DPPH etc to determine the radical scavenging capabilities. The results of phytochemical analysis estimated the quantities and revealed the presence of alkaloids, flavonoids, tannins, saponins and terpenoids which varied in both extracts. The methanol and aqueous extracts exhibited antioxidant activities with relatively high IC50 (IC50 = 3.67 ìg/ml and 4.42ìg/ml respectively) which accounted for a low free radical-scavenging activity when compared with the reference antioxidant, vitamin C (IC50 = 1.51ìg/ml). The results of the study indicates that A. godseffiana leaf extracts contain secondary metabolites and possesses antioxidant properties.

scholarly journals In vitro Cancer Cell Growth Inhibition and Antioxidant Activity of Bombax ceiba (Bombacaceae) Flower Extracts

2014 ◽  
Vol 9 (5) ◽  
pp. 1934578X1400900 ◽  
Author(s):  
Rosa Tundis ◽  
Khaled Rashed ◽  
Ataa Said ◽  
Francesco Menichini ◽  
Monica R. Loizzo
Keyword(s):  
Cancer Cell ◽  
Antiproliferative Activity ◽  
Human Cancer ◽  
Radical Scavenging Activity ◽  
Antioxidant Properties ◽  
Radical Scavenging ◽  
Dependent Manner ◽  
Bleaching Test ◽  
Β Carotene

The flowers of Bombax ceiba were investigated for their chemical composition, antioxidant effects and antiproliferative activity against seven human cancer cell lines. The antiproliferative responses of diethyl ether (DE) and light petroleum (PE) extracts were evaluated by sulforhodamine B (SRB) assay against MCF-7, HeLa, COR-L23, C32, A375, ACHN, and LNCaP cells in comparison with a human normal cell line, 142BR. Moreover, extracts were characterized by GC-MS analysis and tested for their antioxidant properties by different in vitro systems, namely DPPH, Fe-chelating activity and β-carotene bleaching test. Both PE and DE extracts showed the highest antiproliferative activity against human renal adenocarcinoma (ACHN) in a concentration-dependent manner. PE extract showed the highest radical scavenging activity against the DPPH radical, while DE extract was more active in the β-carotene bleaching test. The presence of β-sitosterol and some fatty acids may contribute to the bioactivity of B. ceiba flower extracts.

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