Antioxidant Activities of Ethanol Extracts from Different Parts of the Black Raspberry (Rubus occidentalis) Obtained Using Ultra-sonication

Objectives: The goals of this research were to observe antioxidant properties from different parts of super red dragon fruit (Hylocereus costaricensis) using two antioxidant testing methods which were 2,2-diphenyl-1-picrylhydrazyl (DPPH) and 2,2’-azino-bis (3-ethylbenzthiazoline-6-sulfonic acid) (ABTS).Methods: Antioxidant activities were determined using DPPH and ABTS assays, total phenolic content (TPC) using Folin–Ciocalteu reagent, flavonoid content by Chang’s method.Results: Inhibitory concentration 50% (IC50) of DPPH scavenging activity of all of the extracts in the range of 2.69 μg/ml was −94.17 μg/ml. The ethyl acetate peel extract of super red dragon fruit expressed the highest TPC (4.56 g GAE/100 g) and the highest total flavonoid content (12.63 g QE/100 g). TPC in flesh extract of super red dragon fruit had a negative and significant correlation with their IC50 of ABTS. The IC50 of DPPH and IC50 of ABTS of flesh extract of super red dragon fruit showed positive and significant correlation.Conclusion: All different parts extracts of super red dragon fruit (except n-hexane flesh extract) were categorized as a very strong antioxidant by DPPH method. Phenolic compounds in flesh extract of super red dragon fruit were the major contributor in antioxidant activities by ABTS method. DPPH and ABTS showed linear results in antioxidant activities of super red dragon fruit flesh extract.

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

Korean Journal of Food Preservation ◽

10.11002/kjfp.2015.22.4.567 ◽

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

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TOTAL PHENOLIC CONTENT AND ANTIOXIDANT ACTIVITIES IN CALLUS OF KAEMPFERIA PARVIFLORA

International Journal of Research -GRANTHAALAYAH ◽

10.29121/granthaalayah.v9.i6.2021.3992 ◽

2021 ◽

Vol 9 (6) ◽

pp. 77-84

Author(s):

Zuraida Ab Rahman ◽

Ayu Nazreena Othman ◽

Chandradevan A/L Machap ◽

Amirah Balqis Amir Amran ◽

Nur Najwa Arifah Basiron

Keyword(s):

Antioxidant Activity ◽

Phenolic Content ◽

Antioxidant Activities ◽

Total Content ◽

Total Phenolic ◽

Dichlorophenoxyacetic Acid ◽

Kaempferia Parviflora ◽

Growth Optimization ◽

2,4 Dichlorophenoxyacetic Acid ◽

Different Parts

Black ginger or is one useful medicinal plant that urges the need to be cultivated widely. This plant has some previous studies about their rhizomes and callus growth optimization, but their total content and antioxidant activities are not very . This study aims to study the total content and antioxidant activities of callus of K.. This study is to determine the type and concentration of hormone that give the best effect on the growth of callus in culture from different parts (, and basal part) of K.. Different concentrations were tested with medium 2,4-dichlorophenoxyacetic acid (2,4-D) and acid (NAA) in callus cultivation. The highest total content tested in callus is one with 10.00 mg/L 2,4-D from the part of the plant. The highest antioxidant activity is from the part of the plant with 5.00 mg/L 2,4-D.

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

Genetika ◽

10.2298/gensr2003825s ◽

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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