scholarly journals PROXIMATE AND ELEMENTAL ANALYSES, PHYTOCHEMICAL SCREENING AND ANTIOXIDANT ACTIVITIES OF AQUEOUS AND ETHANOL EXTRACTS OF SOLANUM INCANUM LINN. FRUITS

2021 ◽  
Vol 44 (1) ◽  
pp. 49-62
Author(s):  
A. Akanmu ◽  
O. Sodipo ◽  
U. Sandabe ◽  
B. Shamaki ◽  
S. Balogun ◽  
...  
Keyword(s):  
Antioxidant Activities ◽  
Phytochemical Screening ◽  
Solanum Incanum ◽  
Elemental Analyses ◽  
Ethanol Extracts

scholarly journals The screening of phytochemical and antioxidant activity of agarwood leaves (Aquilaria malaccensis) from two sites in North Sumatra, Indonesia

2020 ◽  
Vol 21 (4) ◽  
Author(s):  
Ridwanti Batubara ◽  
SURJANTO ◽  
T. ISMANELLY HANUM ◽  
ARBI HANDIKA ◽  
ODING AFFANDI
Keyword(s):  
Antioxidant Activity ◽  
Free Radicals ◽  
Antioxidant Activities ◽  
Phytochemical Screening ◽  
Plant Metabolites ◽  
Secondary Plant Metabolites ◽  
Aquilaria Malaccensis ◽  
Ethanol Extracts ◽  
North Sumatra ◽  
Secondary Plant

Abstract. Batubara R, Surjanto, Hanum TI, Handika A, Afandi O. 2020. Phytochemical screening and antioxidant activity of agarwood leaves (Aquilaria malaccensis) from two sites in North Sumatra, Indonesia. Biodiversitas 21: 1588-1596. Agarwood of gaharu (Aquilaria malaccensis Lamk) has an antioxidant activity which can reduce free radicals. This research was conducted to analyze the chemical compounds of agarwood, and the antioxidant activities from two different grown sites, Laru, and Hutanabolon Village. Ethanol extracts of the agarwood leaves (EEAL) were obtained through maceration method. The phytochemical screening included the examination of secondary plant metabolites, while antioxidant activity was determined by free radicals scavenging activity against 1,1- diphenyl-2-picrylhydrazyl (DPPH). An observable parameter was the percentage of free-radical-reduction with different concentrations (40, 60, 80 and 100 ppm) and inhibitory concentrations (IC50) value by using regression equation. The phytochemical screening result showed that simplicia and EEAL from Laru grown site contained secondary plant metabolites, such as steroid/triterpenoids, flavonoids, saponins, and tannins, while simplicia leaves of agarwood from Hutanabolon grown site contained alkaloids, steroid/triterpenoids, saponins, and tannins, However, EEAL from Hutanabolon was found to only contain alkaloids. The f antioxidant activity of EEAL from Laru 27.887 ± 0.560 ppm was not different from Hutanabolon 27.807 ± 4.630 ppm. The EEAL from both Laru and Hutanabolon had a very strong antioxidant activity.

Evaluation of in vitro Antioxidant Activities of Ethanol Extracts of Datura innoxia Mill. Leaves and Seeds Harvested in Mali

2019 ◽  
pp. 1-8
Author(s):  
Issiaka Togola ◽  
Abdramane Ansoumany Dembélé ◽  
Fatoumata Tounkara ◽  
Nouhoum Diarra ◽  
Mamadou Abdoulaye Konaré ◽  
...  
Keyword(s):  
Gallic Acid ◽  
Antioxidant Activities ◽  
Quantitative Estimation ◽  
Natural Antioxidants ◽  
Datura Innoxia ◽  
Phytochemical Screening ◽  
Plant Materials ◽  
Reducing Ability ◽  
Ethanol Extracts

Aims: The purpose of this study was to evaluate the in vitro antioxidant activities of Datura innoxia Mill. leaves and seeds harvested in Mali. Place and Duration of Study: Collection of plant materials were done at Kolondieba (Mali) in june 2016. Evaluation of polyphenols and flavonoids contents, determination of antioxidant activities were done at Laboratory of Plant and Food Biochemistry and Biotechnology of University of Sciences, Techniques and Technologies of Bamako (Mali) between august 2016 and March 2017. Methodology: The leaves and seeds were collected in Kolondieba, Mali. The phytochemical screening based on the standard methods of tube reactions has been performed with ethanol extracts. The quantitative estimation of total polyphenols was made by the Folin-Ciocalteu method and that of flavonoids by the use of aluminum trichloride. The in vitro antioxidant activities of the ethanol extracts was determined by three methods: the 1,1- diphenyl - 2- picrylhydrazyl (DPPH) test, the ferric reducing ability power (FRAP) test and the Phosphomolybdate test (PPM). Results: The phytochemical screening revealed that leaves and seeds of this plant contains alkaloids, polyphenols, flavonoids, coumarins, tannins, triterpenes and saponin. Phenolic contents of ethanol extracts are 30.97 ± 0.33 mg equivalent gallic acid / g in leaves and 14.02 ± 0.15 mg equivalent gallic acid / g in seeds; those of flavonoids are 15.13 ± 0.2 mg equivalent of quercetin / g in the leaves and 4.93 ± 0.41 mg equivalent of quercetin / g in the seeds. The three tests showed that the leaves have a higher level of antiradical activity in vitro than seeds. Conclusion: The results of this work showed that Datura innoxia Mill. has a good antioxidant activity which would justify its use as a potential source of natural antioxidants.

Antioxidant Compounds and Antioxidant Activities of Ethanol Extracts from Milling By-products of Rice Cultivars

2010 ◽  
Vol 39 (4) ◽  
pp. 624-630 ◽  
Author(s):  
Sea-Kwan Oh ◽  
Dae-Jung Kim ◽  
A-Reum Chun ◽  
Mi-Ra Yoon ◽  
Kee-Jong Kim ◽  
...  
Keyword(s):  
Antioxidant Activities ◽  
Antioxidant Compounds ◽  
Rice Cultivars ◽  
Ethanol Extracts ◽  
By Products

Phytochemical Screening, Antimicrobial and Antioxidant Activities of Selected Mangrove Species

2020 ◽  
Vol 16 (2) ◽  
pp. 152-163 ◽  
Author(s):  
Nilesh L. Dahibhate ◽  
Utpal Roy ◽  
Kundan Kumar
Keyword(s):  
Staphylococcus Epidermidis ◽  
Methanol Extract ◽  
Ethyl Acetate Extract ◽  
Antioxidant Activities ◽  
Avicennia Marina ◽  
Total Flavonoids ◽  
Phytochemical Screening ◽  
Mangrove Species ◽  
Sonneratia Caseolaris ◽  
Bruguiera Gymnorhiza

Background: Mangrove plant extracts are used in folkloric medicine as aphrodisiac, sedative, antioxidant, antimicrobial and antimalarial. Screening for antimicrobial, phytochemical and antioxidant activities of fourteen mangroves plant species (Aegiceras corniculatum, Acanthus ilicifolius, Avicennia alba, Avicennia marina, Avicennia officinalis, Bruguiera cylindrica, Bruguiera gymnorhiza, Ceriops tagel, Excoecaria agallocha, Kandelia candel, Rhizophora apiculata, Rhizophora mucronata, Sonneratia alba, and Sonneratia caseolaris) in various solvents are reported in this work. Methods: The antimicrobial screening was carried out using agar well diffusion method. In this study, nine pathogenic strains were used, including three Gram-positive and six Gram-negative bacteria. Phytochemical screening, total flavonoids, total phenolic and antioxidant activity was tested by DPPH radical scavenging assay. Four phenolic compounds (gallic acid, vanillin, tannic acid and quercetin) were quantified by LC-MS/MS in selected mangrove species. Results: Antimicrobial screening showed Staphylococcus aureus, Staphylococcus epidermidis, Enterococcus faecalis and Pseudomonas aeruginosa were most susceptible to ethyl acetate extract as compared to ethanol and methanol extract. Ethyl acetate extract of Avicennia marina and Bruguiera gymnorhiza showed strong antibacterial activity against Staphylococcus aureus, Staphylococcus epidermidis, Enterococcus faecalis and Pseudomonas aeruginosa. Phytochemical analysis revealed the presence of saponins, phenolics, flavonoids, alkaloids, tannins, and terpenoids, which was found to be variable as per the solvent used for extraction. In addition, total phenolics and total flavonoids content with different solvents were found in the range of 11.08 to 196.76 mg GAE/g and 12.92 to 110.3 mg QE/g of extract respectively. Moreover, antioxidant capacities expressed in terms of IC50 (mg/mL) showed that methanol extract exhibited higher antioxidant capacity followed by ethanol extract. LC-MS/MS analysis showed gallic acid and tannic acid are present in higher concentration in Aegiceras corniculatum and Sonneratia caseolaris than other species. The vanillin and quercetin were found in the least concentration. Conclusion: Mangroves species are rich source of antioxidant, phenolics and antimicrobial compounds.

scholarly journals FRACTIONATION OF THE N-HEXANE EXTRACT OF GARCINIA BANCANA MIQ. (MANGGIS HUTAN) LEAVES AND ITS ANTIOXIDANT ACTIVITY BASED ON 1,1-DIPHENYL-2- PICRYLHYDRAZYL AND FERRIC REDUCING ANTIOXIDANT POWER ASSAYS

2018 ◽  
Vol 10 (1) ◽  
pp. 407
Author(s):  
Dewi Kumala Putri ◽  
Berna Elya ◽  
Nuraini Puspitasari
Keyword(s):  
Antioxidant Activity ◽  
Antioxidant Activities ◽  
Hexane Extract ◽  
Phytochemical Screening ◽  
Active Fraction ◽  
Leaf Extracts ◽  
Antioxidant Power ◽  
Dpph Method ◽  
Ferric Reducing Antioxidant Power

Objective: To assess the antioxidant activity from another part of the plant, in this study, leaf extracts in n-hexane were fractionated.Methods: Ten fractions were obtained and tested in vitro for antioxidant activity using two methods, 1,1-diphenyl-2-picrylhydrazyl (DPPH) and ferricreducing antioxidant power (FRAP), to identify the most active fraction.Results: The IC50 of the most active fraction was 36.24 μg/mL using the DPPH method, and the EC50 was 39.54 μg/mL using the FRAP method. Themost active fraction was also shown to contain terpenoids.Conclusion: The most active fraction of an n-hexane extract of the leaves of Gacinia bancana Miq., which was tested by both DPPH and FRAP methodshad antioxidant activities with IC50 and EC50 values of 36.2482 μg/mL and 39.5442 μg/mL, respectively. Phytochemical screening showed that activefraction contains terpenoids.

scholarly journals Antioxidant activities of ethanol extracts of Aster scaber grown in wild and culture field

2015 ◽  
Vol 22 (4) ◽  
pp. 567-576
Author(s):  
Guy-Min Kim ◽  
Ju-Yeon Hong ◽  
Sook-Yi Woo ◽  
Hyun-Suk Lee ◽  
Young-Jun Choi ◽  
...  
Keyword(s):  
Antioxidant Activities ◽  
Ethanol Extracts

scholarly journals QUALITATIVE AND QUANTITATIVE ANALYSIS OF LEAVES AND STEM OF TINOSPORA CORDIFOLIA IN DIFFERENT SOLVENT EXTRACT

2018 ◽  
Vol 8 (5-s) ◽  
pp. 259-264
Author(s):  
Praveen Garg ◽  
Rajesh Garg
Keyword(s):  
Natural Antioxidants ◽  
The Body ◽  
Aluminium Chloride ◽  
Screening Tests ◽  
Tinospora Cordifolia ◽  
Phytochemical Screening ◽  
Traditional Medicines ◽  
Phytochemical Compounds ◽  
Ethanol Extracts ◽  
Medicinal Drugs

Tinospora cordifolia is known as Giloe and Guduchi, with significant importance in the traditional medicinal systems. It is dioeciously plant. It is mostly used in Ayurved system. It is also known as a ‘Rasayans’ of medicinal system, which develops immune system of the body and protect against infection. The aim of this study is carried out to analyse the phytochemical compounds in leaves and stem extracts of T. cordifolia by using phytochemical screening tests and estimate total flavonoid content (TFC) by using aluminium chloride method in the sample extracts. The leaf and stem extracts of T. cordifolia expressed the presence of several phytochemicals viz., flavonoids, amino acids, diterpines, protein, saponins and carbohydrates. The result of phytochemical screening tests revealed that diterpines and carbohydrates are positive in all extracts of T. cordifolia, but flavonoids and saponins only present in  methanol and ethanol extracts. TFC of T. cordifolia was higher in ethanolic leaves extracts than mathanolic leaves extracts. The studies justify that T. cordifolia use in traditional medicines. The investigation further proposed that the phytochemicals present in stems and leaves of T. cordifolia, which can be use as natural antioxidants in medicinal drugs. Keywords: Tinospora cordifolia, Phytochemicals, Flavonoids

scholarly journals Anti-urease, total phenolic content and antioxidant activities of some Inula l. (Asteraceae) taxa in Turkey

Genetika ◽  
2020 ◽  
Vol 52 (3) ◽  
pp. 825-834
Author(s):  
Emre Sevindik ◽  
Sinem Aydin ◽  
Mehmet Paksoy ◽  
Bahar Sokmen
Keyword(s):  
Antioxidant Activity ◽  
Antioxidant Capacity ◽  
Total Phenolic Content ◽  
Phenolic Content ◽  
Antioxidant Activities ◽  
Soxhlet Extraction ◽  
Total Phenolic ◽  
Food Industries ◽  
Total Antioxidant ◽  
Ethanol Extracts

The genus Inula belongs to family Asteraceae and it is medicinally important because it possesses cytotoxic, anticancer, hepatoprotective, antibacterial and anti-inflammatory properties. The aim of this research was to explore antioxidant and anti-urease activities of fifteen Inula taxa in Turkey. Ethanol extracts of Inula taxa were obtained by Soxhlet extraction. Antioxidant activity was determined through total antioxidant activity, total phenolic content and copper reducing antioxidant capacity (CUPRAC) analyses. The highest total phenolic content and total antioxidant capacity were found in I. orientalis (158.54?0.002 ?g GAE/mL) and I. macrocephala (189.16?0.002 ?g AAE/mL). CUPRAC activity increases with the increasing concentration of the extracts and the standard. Moreover, all the tested plants exhibited better anti-urease activity than standard thiourea except for I. anatolica and I. thapsoides subsp. thapsoides. Results obtained from this study demonstrate that Inula species might be utilized as a probable natural source in the pharmaceutical and food industries but further and more specific studies are needed to determine active antioxidative and anti-urease compounds in the extracts.

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