Effect of Extraction Conditions on the Phenolic Content and DPPH Radical Scavenging Activity of Hypericum perforatum L.

In this study, various extracts of Hypericum perforatum L. were investigated in terms of their extraction yields. For this purpose, five solvent systems including 70%EtOH-30% H2O (A), 50%EtOH-50% H2O (B), 30%EtOH-70% H2O (C), 100% EtOH (D), and 100% H2O (E) were used. Ultrasonic-assisted extraction...

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Main Authors: Fadime Seyrekoğlu, Hasan Temiz
Format: Article
Language:English
Published: Turkish Science and Technology Publishing (TURSTEP) 2020-01-01
Series:Turkish Journal of Agriculture: Food Science and Technology
Subjects:
Online Access:http://www.agrifoodscience.com/index.php/TURJAF/article/view/3013
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author Fadime Seyrekoğlu
Hasan Temiz
author_facet Fadime Seyrekoğlu
Hasan Temiz
author_sort Fadime Seyrekoğlu
collection DOAJ
description In this study, various extracts of Hypericum perforatum L. were investigated in terms of their extraction yields. For this purpose, five solvent systems including 70%EtOH-30% H2O (A), 50%EtOH-50% H2O (B), 30%EtOH-70% H2O (C), 100% EtOH (D), and 100% H2O (E) were used. Ultrasonic-assisted extraction was used for extraction and extraction processes were performed at different temperatures (30°-70oC) and extraction times (30-70 min.). The optimum extraction conditions for H. perforatum was determined based on extraction yield, total phenolic contents, and DPPH radical scavenging activities of the crude extracts, as well. The best ultrasound extraction conditions are achieved in the presence of 70%EtOH-30% H2O solvent system, for 40 min, at 30°C for H. perforatum.
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spelling doaj.art-c32fb18165ce48bfb82810885effbcfa2023-02-15T16:21:35ZengTurkish Science and Technology Publishing (TURSTEP)Turkish Journal of Agriculture: Food Science and Technology2148-127X2020-01-018122622910.24925/turjaf.v8i1.226-229.30131502Effect of Extraction Conditions on the Phenolic Content and DPPH Radical Scavenging Activity of Hypericum perforatum L.Fadime Seyrekoğlu0Hasan Temiz1Department of Food Processing, Suluova Vocational Schools, Amasya University, 05500 AmasyaDepartment of Food Engineering, Faculty of Engineering, Ondokuz Mayıs University, 55270 Samsun,In this study, various extracts of Hypericum perforatum L. were investigated in terms of their extraction yields. For this purpose, five solvent systems including 70%EtOH-30% H2O (A), 50%EtOH-50% H2O (B), 30%EtOH-70% H2O (C), 100% EtOH (D), and 100% H2O (E) were used. Ultrasonic-assisted extraction was used for extraction and extraction processes were performed at different temperatures (30°-70oC) and extraction times (30-70 min.). The optimum extraction conditions for H. perforatum was determined based on extraction yield, total phenolic contents, and DPPH radical scavenging activities of the crude extracts, as well. The best ultrasound extraction conditions are achieved in the presence of 70%EtOH-30% H2O solvent system, for 40 min, at 30°C for H. perforatum.http://www.agrifoodscience.com/index.php/TURJAF/article/view/3013st. john’s worthypericum perforatum l.solventextraction timeextraction temperatureoptimum condition
spellingShingle Fadime Seyrekoğlu
Hasan Temiz
Effect of Extraction Conditions on the Phenolic Content and DPPH Radical Scavenging Activity of Hypericum perforatum L.
Turkish Journal of Agriculture: Food Science and Technology
st. john’s wort
hypericum perforatum l.
solvent
extraction time
extraction temperature
optimum condition
title Effect of Extraction Conditions on the Phenolic Content and DPPH Radical Scavenging Activity of Hypericum perforatum L.
title_full Effect of Extraction Conditions on the Phenolic Content and DPPH Radical Scavenging Activity of Hypericum perforatum L.
title_fullStr Effect of Extraction Conditions on the Phenolic Content and DPPH Radical Scavenging Activity of Hypericum perforatum L.
title_full_unstemmed Effect of Extraction Conditions on the Phenolic Content and DPPH Radical Scavenging Activity of Hypericum perforatum L.
title_short Effect of Extraction Conditions on the Phenolic Content and DPPH Radical Scavenging Activity of Hypericum perforatum L.
title_sort effect of extraction conditions on the phenolic content and dpph radical scavenging activity of hypericum perforatum l
topic st. john’s wort
hypericum perforatum l.
solvent
extraction time
extraction temperature
optimum condition
url http://www.agrifoodscience.com/index.php/TURJAF/article/view/3013
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