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1. Microwave-assisted green extraction of antioxidant components from Osmanthus fragrans (Lour) flower using natural deep eutectic solvents

Author:
Pan, Chenghui; Zhao, Laijun; Zhao, Dayun
Source:
Journal of applied research on medicinal and aromatic plants 2021 v.20 pp. 100285
ISSN:
2214-7861
Subject:
Osmanthus fragrans; antioxidant activity; antioxidants; bioactive compounds; ethanol; flower extracts; flowers; mass spectrometry; microwave treatment; response surface methodology; solvents; ultra-performance liquid chromatography
Abstract:
... Osmanthus fragrans (Lour) flower is a typical fragrant herb in eastern countries containing multiple bioactive compounds, the extract of which has been widely used as a natural antioxidant additive in food and cosmetics. However, the existing extraction methods use organic solvents during the extraction process, which is non-eco-friendly and harmful to human health. In this study, we introduce, to ...
DOI:
10.1016/j.jarmap.2020.100285

2. Simultaneous Optimization of Microwave-Assisted Extraction of Phenolic Compounds and Antioxidant Activity of Avocado (Persea americana Mill.) Seeds Using Response Surface Methodology

Author:
Weremfo, Alexander; Adulley, Felix; Adarkwah-Yiadom, Martin
Source:
Journal of Analytical Methods in Chemistry (Online) 2020 v.2020
ISSN:
2090-8873
Subject:
Persea americana; antioxidant activity; antioxidants; avocados; catechin; dietary supplements; ethanol; high performance liquid chromatography; microwave treatment; models; response surface methodology; rutin; seeds; solvents; syringic acid
Abstract:
... This study was designed to optimize three microwave-assisted extraction (MAE) parameters (ethanol concentration, microwave power, and extraction time) of total phenolics, total flavonoids, and antioxidant activity of avocado seeds using response surface methodology (RSM). The predicted quadratic models were highly significant (p<0.001) for the responses studied. The extraction of total phenolic co ...
DOI:
10.1155/2020/7541927

3. Effects of Microwave-Assisted Extraction Conditions on Antioxidant Capacity of Sweet Tea (Lithocarpus polystachyus Rehd.)

Author:
Shang, Ao; Luo, Min; Gan, Ren-You; Xu, Xiao-Yu; Xia, Yu; Guo, Huan; Liu, Yi; Li, Hua-Bin
Source:
Antioxidants 2020 v.9 no.8
ISSN:
2076-3921
Subject:
Lithocarpus polystachyus; antioxidant activity; antioxidants; diodes; ethanol; food additives; functional foods; gallic acid; high performance liquid chromatography; iron; microwave treatment; response surface methodology; temperature
Abstract:
... In this study, the effects of microwave-assisted extraction conditions on antioxidant capacity of sweet tea (Lithocarpus polystachyus Rehd.) were studied and the antioxidants in the extract were identified. The influences of ethanol concentration, solvent-to-sample ratio, microwave power, extraction temperature and extraction time on Trolox equivalent antioxidant capacity (TEAC) value, ferric redu ...
DOI:
10.3390/antiox9080678

4. Microwave‐assisted extraction of cannabinoids and antioxidants from Cannabis sativa aerial parts and process modeling

Author:
Drinić, Zorica; Vladić, Jelena; Koren, Anamarija; Zeremski, Tijana; Stojanov, Nadežda; Kiprovski, Biljana; Vidović, Senka
Source:
Journal of chemical technology and biotechnology 2020 v.95 no.3 pp. 831-839
ISSN:
0268-2575
Subject:
Cannabis sativa; aerial parts; antioxidant activity; antioxidants; bioactive compounds; byproducts; cannabidiol; catechin; construction materials; environmental impact; ethanol; experimental design; fabrics; gallic acid; hemp; industry; liquids; microwave treatment; models; paper; polyphenols; response surface methodology; tetrahydrocannabinol
Abstract:
... BACKGROUND: Cannabis (Cannabis sativa L.) is one of the most controversial plants. So far, its multiple application in industry for the production of fabrics, paper and construction materials is known. Today, there is increasing interest in its application for medical purposes, as opposed to its opiate activity. In addition to well‐known cannabinoids, the presence of polyphenolic compounds and the ...
DOI:
10.1002/jctb.6273

5. Extraction and characterization of bioactive compounds in Vernonia amygdalina leaf ethanolic extract comparing Soxhlet and microwave-assisted extraction techniques

Author:
Alara, Oluwaseun Ruth; Abdurahman, Nour Hamid; Ukaegbu, Chinonso Ishmael; Kabbashi, Nassereldeen Ahmed
Source:
Journal of Taibah University for Science 2019 v.13 no.1 pp. 414-422
ISSN:
1658-3655
Subject:
Fourier transform infrared spectroscopy; Vernonia amygdalina; alkaloids; anthraquinones; antioxidant activity; antioxidants; assays; correlation; ethanol; extracts; flavonoids; gas chromatography; leaves; microwave treatment; phenols; saponins; solid phase extraction; steroids; tannins; terpenoids
Abstract:
... The bioactive compounds in Vernonia amygdalina leaf were extracted using ethanol through Soxhlet and microwave-assisted extraction (MAE) techniques. The phytochemical analysis was carried out on the ethanolic extracts using the standard techniques. This analysis revealed the presence of flavonoids, alkaloids, steroids, terpenoids, glycosides, tannins, phenols, saponins, and the absence of anthraqu ...
DOI:
10.1080/16583655.2019.1582460

6. Optimized Extraction, Preliminary Characterization and Evaluation of the in Vitro Anticancer Activity of Phlorotannin-Rich Fraction from the Brown Seaweed, Cystoseira sedoides

Author:
Abdelhamid, Amal; Lajili, Sirine; Elkaibi, Mohamed Amine; Ben Salem, Yosra; Abdelhamid, Ameni; Muller, Christian D.; Majdoub, Hatem; Kraiem, Jamil; Bouraoui, Abderrahman
Source:
Journal of aquatic food product technology 2019 v.28 no.9 pp. 892-909
ISSN:
1547-0636
Subject:
2,2-diphenyl-1-picrylhydrazyl; Cystoseira; EDTA (chelating agent); Fourier transform infrared spectroscopy; antineoplastic activity; antioxidant activity; antioxidants; apoptosis; benzaldehyde; bioactive compounds; breast neoplasms; dimethyl sulfoxide; ethanol; fetal bovine serum; high performance liquid chromatography; inhibitory concentration 50; microwave treatment; models; neoplasm cells; phosphates; propidium; response surface methodology
Abstract:
... Brown seaweeds produce useful bioactive substances with high cosmetic and pharmacological values due to the presence of antioxidant derivatives, mainly phlorotannins (PHT), which are of particular interest. A central composite rotatable design (CCRD) with three variables (extraction time, dry material-to-solvent ratio and ethanol concentration) and two responses was performed to optimize the micro ...
DOI:
10.1080/10498850.2019.1662865

7. Advantages of contemporary extraction techniques for the extraction of bioactive constituents from black elderberry (Sambucus nigra L.) flowers

Author:
Milena, Vujanović; Tatjana, Majkić; Gökhan, Zengin; Ivana, Beara; Aleksandra, Cvetanović; Mohammad, Mahomoodally Fawzi; Marija, Radojković
Source:
Industrial crops and products 2019 v.136 pp. 93-101
ISSN:
0926-6690
Subject:
Sambucus nigra; acetylcholinesterase; antioxidant activity; antioxidants; beverages; chemical constituents of plants; cholinesterase; elderberries; enzyme inhibition; enzyme inhibitors; ethanol; flowers; liquid chromatography; maceration; mass spectrometry; microwave treatment; monophenol monooxygenase; phenolic compounds; rutin; solvents; spectrophotometers; traditional medicine; ultrasonic treatment
Abstract:
... Since ancient times, elderberry (Sambucus nigra L.) has been used in traditional medicine, but also as a supplement in various beverages and dishes. Although elderberry is a widespread species in the Balkan Peninsula, it is not sufficiently exploited and it is barely chemically and biologically characterized. The present study was focused on the phytochemical composition and biological effects of ...
DOI:
10.1016/j.indcrop.2019.04.058

8. Ultrasonic microwave-assisted extraction coupled with macroporous resin chromatography for the purification of antioxidant phenolics from waste jackfruit (Artocarpus heterophyllus Lam.) peels

Author:
Jiang, Zhiguo; Shi, Ruicheng; Chen, Haiming; Wang, Yanhua
Source:
Journal of food science and technology 2019 v.56 no.8 pp. 3877-3886
ISSN:
0022-1155
Subject:
Artocarpus heterophyllus; antioxidant activity; antioxidants; byproducts; catechin; chlorogenic acid; ethanol; food industry; gallic acid; high performance liquid chromatography; irradiation; jackfruits; microwave treatment; pharmaceutical industry; porous media; response surface methodology; ultrasonics; wastes
Abstract:
... An efficient ultrasonic microwave-assisted extraction (UMAE) coupled with macroporous resin chromatography technique was successfully used for the extraction and purification of antioxidant phenolics from jackfruit by-products (peels). After optimization by single factor experiments and response surface methodology, the optimum extraction conditions for UMAE were: ethanol concentration 63%, solven ...
DOI:
10.1007/s13197-019-03858-8
PubMed:
31413413
PubMed Central:
PMC6675802

9. Comparing Polyphenolic Yields from the Crowberry Empetrum nigrum L. on the Basse-Côte-Nord Du Québec via Solvent and Microwave-Assisted Extractions

Author:
Roberts, Karla; Diop, Amadou; St-Pierre, Annabelle; Tardif, Maxim; Vialle, Agathe; Barnabé, Simon
Source:
Industrial biotechnology 2019 v.15 no.3 pp. 202-211
ISSN:
1931-8421
Subject:
2,2-diphenyl-1-picrylhydrazyl; Empetrum nigrum; anthocyanins; antioxidant activity; antioxidants; biotechnology; climate; cosmetics; ethanol; free radicals; liquids; microwave treatment; nutrition; pH; polyphenols; solvents; temperature; Quebec
Abstract:
... Wildberries are recognized worldwide for their nutrition potential, especially for polyphenols such as anthocyanins and flavonoids, which are known as antioxidants. The crowberry, Empetrum nigrum found in northern climates, is a wildberry that has the potential to be used in natural health and cosmetics products due to its high antioxidant activity. This study is focused on antioxidant active crow ...
DOI:
10.1089/ind.2019.0009

10. Evaluation of extraction technologies and optimization of microwave and ultrasonic assisted consecutive extraction of phenolic antioxidants from winery byproducts

Author:
Wang, Jun; Zhang, Yuxiu; Wang, Hongli; Huo, Sufang
Source:
Journal of food process engineering 2019 v.42 no.4 pp. e13064
ISSN:
0145-8876
Subject:
antioxidant activity; antioxidants; byproducts; economic sustainability; ethanol; flavonoids; grape pomace; liquids; microwave treatment; principal component analysis; proanthocyanidins; raw materials; response surface methodology; seeds; sonication; ultrasonic treatment; ultrasonics
Abstract:
... Acid, enzyme, ultrasonic, and microwave were used to assist extraction of polyphenols in grape pomace, skins, and seeds. The relationship among extraction technologies, polyphenolic content and antioxidant capacities was analyzed by principal component analysis (PCA), and the effective extraction condition for specific target was optimized by response surface methodology. Polyphenolic content coul ...
DOI:
10.1111/jfpe.13064

11. Optimizing the extraction process of natural antioxidants from chardonnay grape marc using microwave-assisted extraction

Author:
Garrido, Tania; Gizdavic-Nikolaidis, Marija; Leceta, Itsaso; Urdanpilleta, Marta; Guerrero, Pedro; de la Caba, Koro; Kilmartin, Paul A.
Source:
Waste management 2019 v.88 pp. 110-117
ISSN:
0956-053X
Subject:
2,2-diphenyl-1-picrylhydrazyl; ambient temperature; antioxidant activity; antioxidants; catechin; epicatechin; ethanol; grape pomace; manufacturing; microwave treatment; procyanidins; response surface methodology; solvents; waste management
Abstract:
... The aim of this work was to extract phenolic compounds from Chardonnay grape marc employing a microwave-assisted extraction (MAE). Firstly, the effect of solvent concentration (30–60%), solid mass (1.0–2.0 g) and extraction time (5–15 min) on the recovery of phenolic content and antioxidant capacity was evaluated using a response surface methodology (RSM). The optimal parameters found by RSM were ...
DOI:
10.1016/j.wasman.2019.03.031

12. Characterization of phenolic compounds from Phyllanthus emblica fruits using HPLC-ESI-TOF-MS as affected by an optimized microwave-assisted extraction

Author:
Li, Yongyu; Guo, Bingchun; Wang, Wenting; Li, Liang; Cao, Lili; Yang, Chao; Liu, Jingyuan; Liang, Qin; Chen, Jianjun; Wu, Shaohua; Zhang, Liaoyuan
Source:
International journal of food properties 2019 v.22 no.1 pp. 330-342
ISSN:
1094-2912
Subject:
2,2-diphenyl-1-picrylhydrazyl; Phyllanthus emblica; antioxidant activity; antioxidants; ellagic acid; equations; ethanol; food industry; fruits; gallic acid; irradiation; lipid peroxidation; microwave treatment; response surface methodology
Abstract:
... A simple microwave-assisted method for extracting antioxidant phenolic compounds from emblic (Phyllanthus emblica L.) fruits was developed and optimized with response surface methodology (RSM). The influence of process conditions including microwave power, irradiation time, ethanol concentration, and solvent-to-solid ratio on the extraction of total phenolic content was analyzed by using a second- ...
DOI:
10.1080/10942912.2019.1583249

13. Ethanolic extraction of bioactive compounds from Vernonia amygdalina leaf using response surface methodology as an optimization tool

Author:
Alara, OluwaseunRuth; Alara, Oluwaseun Ruth; Abdurahman, Nour Hamid; Olalere, Olusegun Abayomi
Source:
Journal of food measurement & characterization 2018 v.12 no.2 pp. 1107-1122
ISSN:
2193-4126
Subject:
2,2-diphenyl-1-picrylhydrazyl; Vernonia amygdalina; analysis of variance; antioxidant activity; antioxidants; bioactive compounds; ethanol; flavonoids; irradiation; leaves; microwave treatment; response surface methodology
Abstract:
... In this study, ethanolic microwave-assisted extraction of total phenolic content (TFC), total flavonoid content (TFC) and antioxidant from Vernonia amygdalina leaf was investigated using response surface methodology. Four extraction variables, including irradiation time (1‒5 min), microwave power level (500‒700 W), feed-to-solvent ratio (1:8‒1:12 g/ml), and ethanol concentration (60‒80%) were opti ...
DOI:
10.1007/s11694-018-9726-3

14. Optimization of ultrasound, microwave and Soxhlet extraction of flavonoids from Millettia speciosa Champ. and evaluation of antioxidant activities in vitro

Author:
Zhao, Zhenyu; Liu, Pinghuai; Wang, Shenglin; Ma, Shasha
Source:
Journal of food measurement & characterization 2017 v.11 no.4 pp. 1947-1958
ISSN:
2193-4126
Subject:
2,2-diphenyl-1-picrylhydrazyl; Millettia; antioxidant activity; antioxidants; cell structures; ethanol; flavonoids; herbal medicines; microwave treatment; powders; response surface methodology; scanning electron microscopy; solid phase extraction; temperature; ultrasonics
Abstract:
... Ultrasonic-assisted extraction (UAE) and microwave-assisted extraction (MAE) were developed to extract flavonoids antioxidants from the root of Millettia speciosa (Millettia speciosa Champ.). The optimal experimental parameters for antioxidant extraction from M. speciosa Champ. were measured using single-factor experimentation combined with response surface methodology (RSM). Final extraction rate ...
DOI:
10.1007/s11694-017-9577-3

15. Optimization of ultrasound and microwave assisted extractions of polyphenols from black rice (Oryza sativa cv. Poireton) husk

Author:
Jha, Pankaj; Das, Arup Jyoti; Deka, Sankar Chandra
Source:
Journal of food science and technology 2017 v.54 no.12 pp. 3847-3858
ISSN:
0022-1155
Subject:
Oryza sativa; anthocyanins; antioxidant activity; antioxidants; black rice; ethanol; microwave treatment; polyphenols; response surface methodology; rice hulls; solutes; solvents; sonication; temperature
Abstract:
... Phenolic compounds were extracted from the husk of milled black rice (cv. Poireton) by using a combination of ultrasound assisted extraction and microwave assisted extraction. Extraction parameters were optimized by response surface methodology according to a three levels, five variables Box–Behnken design. The appropriate process variables (extraction temperature and extraction time) to maximize ...
DOI:
10.1007/s13197-017-2832-0
PubMed:
29085127
PubMed Central:
PMC5643800

16. Microwave‐assisted extraction of wild apple fruit dust—production of polyphenol‐rich extracts from filter tea factory by‐products

Author:
Pavlić, Branimir; Naffati, Abdulhakim; Hojan, Tijana; Vladić, Jelena; Zeković, Zoran; Vidović, Senka
Source:
Journal of food process engineering 2017 v.40 no.4
ISSN:
0145-8876
Subject:
analysis of variance; antioxidant activity; antioxidants; apples; bioactive compounds; byproducts; dust; economic feasibility; ethanol; experimental design; flavonoids; irradiation; liquids; mathematical models; microwave treatment; natural resources; polyphenols; raw materials; tea
Abstract:
... Wild apple fruit dust, discarded as by‐product from filter tea factory, represents under‐utilized raw material, which contains high amount of bioactive compounds. The aim of present work was utilization of wild apple fruit dust by application of microwave‐assisted extraction (MAE) process for recovery of polyphenolic antioxidants. MAE was used for isolation of polyphenolic fraction from this kind ...
DOI:
10.1111/jfpe.12508

17. Valorisation of tomato wastes for development of nutrient-rich antioxidant ingredients: A sustainable approach towards the needs of the today's society

Author:
Pinela, José; Prieto, M.A.; Barreiro, Maria Filomena; Carvalho, Ana Maria; Oliveira, M. Beatriz P.P.; Curran, Thomas P.; Ferreira, Isabel C.F.R.
Source:
Innovative food science & emerging technologies 2017 v.41 pp. 160-171
ISSN:
1466-8564
Subject:
antioxidant activity; antioxidants; bioeconomics; ethanol; feed industry; flavonoids; food additives; hemolysis; ingredients; microwave treatment; models; nutrients; phenolic compounds; prediction; proteins; recycling; response surface methodology; society; solvents; sugars; temperature; tomatoes; wastes
Abstract:
... Nutrient-rich antioxidant ingredients were produced from tomato fruit wastes using a microwave-assisted extraction (MAE) process. Different conditions of extraction time (t), temperature (T), ethanol concentration (Et) and solid/liquid ratio (S/L) were combined in a circumscribed central composite design and optimized by response surface methodology. The model was statistically validated and used ...
DOI:
10.1016/j.ifset.2017.02.004

18. Optimization of microwave‐assisted extraction (MAE) of coriander phenolic antioxidants – response surface methodology approach

Author:
Zeković, Zoran; Vladić, Jelena; Vidović, Senka; Adamović, Dušan; Pavlić, Branimir
Source:
Journal of the science of food and agriculture 2016 v.96 no.13 pp. 4613-4622
ISSN:
0022-5142
Subject:
gallic acid; inhibitory concentration 50; mathematical models; polyphenols; Coriandrum sativum; seeds; experimental design; 2,2-diphenyl-1-picrylhydrazyl; coriander seed; regression analysis; catechin; response surface methodology; microwave treatment; irradiation; antioxidant activity; median effective concentration; ethanol; antioxidants
Abstract:
... BACKGROUND: Microwave‐assisted extraction (MAE) of polyphenols from coriander seeds was optimized by simultaneous maximization of total phenolic (TP) and total flavonoid (TF) yields, as well as maximized antioxidant activity determined by 1,1‐diphenyl‐2‐picrylhydrazyl and reducing power assays. Box–Behnken experimental design with response surface methodology (RSM) was used for optimization of MAE ...
DOI:
10.1002/jsfa.7679

19. Comparative analysis of different bioactivities of Curcuma longa, Nigella sativa seeds, and Camellia sinensis extracted by four different methods: A green way to reduce oxidative stress

Author:
Yasmeen, Humaira; Hassnain, Shahida
Source:
Food science and biotechnology 2016 v.25 no.3 pp. 811-819
ISSN:
1226-7708
Subject:
Camellia sinensis; Curcuma longa; Nigella sativa; antioxidant activity; antioxidants; erythrocytes; ethanol; humans; hydrogen; microwave treatment; osmotolerance; oxidative stress; plant extracts; polyphenols; screening; seeds; solvents
Abstract:
... Medicinal use of plants is as old as human history. Curcuma longa, Nigella sativa seeds, and Camellia sinensis have been widely used in various remedies since ages. In this study, the effect of extraction method on different bioactivities and phytochemical constituents of Curcuma longa, Nigella sativa seeds, and Camellia sinensis were evaluated and compared using single solvent system (50% ethanol ...
DOI:
10.1007/s10068-016-0136-1
PubMed:
30263340
PubMed Central:
PMC6049150

20. Extraction, characterization and antioxidant activities of polysaccharides of Chuanminshen violaceum

Author:
Dong, Hongmin; Zhang, Qing; Li, Yu; Li, Lu; Lan, Weijie; He, Jingliu; Li, Huiyan; Xiong, Yabo; Qin, Wen
Source:
International journal of biological macromolecules 2016 v.86 pp. 224-232
ISSN:
0141-8130
Subject:
2,2-diphenyl-1-picrylhydrazyl; Fourier transform infrared spectroscopy; antioxidant activity; antioxidants; ethanol; free radicals; galactose; gas chromatography-mass spectrometry; glucose; microwave treatment; molecular weight; polysaccharides; temperature
Abstract:
... A single factor experiment and Box-Behnken design were applied to optimize the microwave-assisted extraction (MAE) of Chuanminshen violaceum polysaccharides (CVPs). The CVPs yield was 34.59±0.51%, which was in accordance with the predicted value of 35.54%, under the following optimum conditions: microwave power of 466W, extraction temperature of 64.5°C, extraction time of 15min, and water-raw mate ...
DOI:
10.1016/j.ijbiomac.2016.01.002