Relevant bibliographies by topics / DPPH radical assay

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  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers
  5. Reports

Academic literature on the topic 'DPPH radical assay'

Author: Grafiati
Published: 3 June 2025
Last updated: 1 August 2025

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Journal articles on the topic "DPPH radical assay"

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Gulcin, İlhami, and Saleh H. Alwasel. "DPPH Radical Scavenging Assay." Processes 11, no. 8 (2023): 2248. http://dx.doi.org/10.3390/pr11082248.

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Today, there is an increasing interest in antioxidants, especially to prevent the known harmful effects of free radicals in human metabolism and their deterioration during processing and storage of fatty foods. In both cases, natural-source antioxidants are preferred over synthetic antioxidants. So, there has been a parallel increase in the use of assays to estimate antioxidant efficacy in human metabolism and food systems. Today, there are many bioanalytical methods that measure the antioxidant effect. Of these, the 1,1-diphenyl-2-picrylhydrazil (DPPH) removing assay is the most putative, pop
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Darshika, Acharya Meenakshi Vaidya*. "In-vitro antioxidant activity of hydroalcoholic extract of leaves of Hydnocarpus pentandrus (Buch. - Ham) Oken." International Journal of Pharmaceutical Sciences 2, no. 11 (2024): 167–72. https://doi.org/10.5281/zenodo.14030494.

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Cellular damage can arise from the reactions of free radicals with membrane lipids, nucleic acids, proteins, enzymes, and other micro molecules. Free radical-induced cell damage seems to be a primary factor in the aging process and degenerative diseases, including but not limited to cancer, heart disease, cataracts, liver disorders, diabetes mellitus, inflammation, and renal failure. Naturally, the body produces free radicals, and antioxidants scavenge them to shield the body from harmful consequences. This dynamic equilibrium exists between the two. It's possible that there aren't enough anti
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Kalaiyarasi, D., V. Manobharathi, and S. Mirunalini. "Capsaicin in hot chili peppers as a potent free radical scavenger: An in vitro approach." Research Journal of Biotechnology 17, no. 4 (2022): 68–75. http://dx.doi.org/10.25303/1704rjbt6875.

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In humans, countless chronic conditions are connected with the accumulation of free radicals. Antioxidants can scavenge free radicals and reduce their effect. The hunt for natural antioxidants of plant provenance becomes an urgent primary concern. So, the present study was to investigate the antioxidant and free radical scavenging activity of Capsaicin by using various in vitro assays such as 1,1-diphenyl-2-picrylhydrazyl free radical (DPPH), 2,2′-azino-bis(3- ethylbenzthiazoline-6-sulfonic acid) (ABTS●+), hydroxyl radical, superoxide anion, hydrogen peroxide, nitric oxide and reducing power.
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Yulyana, A., E. Mugiyanto, D. G. Guntara, et al. "Radical scavenging activity of ethanolic extract of green and red leaves of Cantigi (Vaccinium varingiaefolium Bl. Miq.)." Food Research 9, no. 2 (2025): 13–19. https://doi.org/10.26656/fr.2017.9(2).607.

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Indonesia's Cantigi (Vaccinium varingiaefoilum Bl. Miq.) is a member of the blueberry family that grows abundantly around volcanoes. It has two distinct leaf colors, red color leave (RCL) and green color leave (GCL), which contain secondary metabolites including anthocyanins. This study aimed to characterize the antioxidant properties of Cantigi leaf using various methods. DPPH (2,2’-diphenyl-1-picrylhydrazyl), BHA (butylhydroxyanisole), and BHT (butyl hydroxytoluene) were used to check the antioxidant activity of 96% ethanolic Cantigi extract. The phytochemical screening showed positive resul
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De, A., P. Chattopadhyay, and M. Singh. "In-Vitro Antioxidant Activity and Free Radical Scavenging Potential of Phlorizin Derived Sodium Glucose Cotransporter 2 Inhibitor." Journal of Drug Delivery and Therapeutics 9, no. 4 (2019): 257–64. http://dx.doi.org/10.22270/jddt.v9i4.3038.

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Objectives- In vitro antioxidant activity assay is the preliminary step to determine a drug’s efficacy in combating oxidative stress when used in a clinical condition. The current study was aimed to determine the in vitro antioxidant activity of antidiabetic drug-SGLT-2 inhibitor (canagliflozin, dapagliflozin and empagliflozin) in combating the oxidative stress in diabetes mellitus. Methods- A total of five methods were adopted for determining the antioxidant potential of the drugs. The methods were DPPH radical scavenging assay, nitric oxide radical scavenging assay, phosphomolybdenum assay,
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Luo, Aoxue, Ping Peng, Wen Feii, Linying Yang, and Yijun Fan. "Isolation and antioxidant activity (in vitro and in vivo) of the flavonoid from Tartarian-buckwheat." Journal of Scientific and Innovative Research 3, no. 2 (2014): 168–72. http://dx.doi.org/10.31254/jsir.2014.3210.

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The total flavonoid was isolated from tartarian-buckwheat through reflux extraction. In order to explore the antioxidant activities, in the present study, our study aimed to examine the antioxidant activity of the total flavonoid using different assays including: reducing power, 2,2- diphenyl 1-picrylhydrazyl (DPPH) radical scavenging assay, ABTS radical scavenging assay and hydroxyl radical scavenging activity. The results exhibited that the total flavonoid has significant reductive ability and radicals scavenging effects. In vivo antioxidant activities assays, the flavonoid was found to incr
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Tumbas, Vesna, Gordana Cetkovic, Sonja Djilas, et al. "Antioxidant activity of mandarin (Citrus reticulata) peel." Acta Periodica Technologica, no. 41 (2010): 195–203. http://dx.doi.org/10.2298/apt1041195t.

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Mandarin peel, a waste product coming from juice production, was extracted by conventional extraction with 70% acetone. Content of flavonoids in mandarin peel extract (MPE) was determined by HPLC. Hesperidin was the most dominant flavonoid. Free radical scavenging activity of MPE on stable DPPH radicals and reactive hydroxyl radicals was also evaluated. EC50 value determined in spectrophotometrical DPPH radical assay was 0.179 mg/ml, while this value in ESR spin trapping hydroxyl radical assay was 0.415 mg/ml. Also, MPE showed protective effects in stabilising sunflower oil during accelerated
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Pugalenthi, M., M. Pradheeba, S. Vishnu Kumar, G. Vasukipriyadharshini, S. Swathi, and G. Divya Bharathi. "UNVEILING THE PHYTOCHEMICAL PROFILE, SECONDARY METABOLITE QUANTIFICATION AND ANTIOXIDANT ACTIVITY OF CLEMATIS WIGHTIANA WALL. EX WIGHT and ARN." Journal of Advanced Scientific Research 13, no. 03 (2022): 70–77. http://dx.doi.org/10.55218/jasr.202213312.

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Traditionally, the leaves of Clematis wightiana have been used in the treatment of rheumatism, indigestion, headaches, varicose veins, bone problems, nasal congestion and sinus. The present study was conducted to evaluate the phytochemical profile, quantification of secondary metabolites and free radical scavenging capacity of C. wightiana leaf. The total phenolic, tannin and flavanoid content of C. wightiana leaves were quantified and were found to be higher in the ethyl acetate extract. Subsequently, the extracts were subjected to appraise their antioxidant capacity by availing various in vi
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Raja, Boobalan, and Kodukkur Pugalendi. "Evaluation of antioxidant activity of Melothria maderaspatana in vitro." Open Life Sciences 5, no. 2 (2010): 224–30. http://dx.doi.org/10.2478/s11535-010-0005-5.

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AbstractIn this study, an aqueous extract of leaves from Melothria maderaspatana was tested for in vitro antioxidant activity. Free radical scavenging assays, such as hydroxyl radical, hydrogen peroxide, superoxide anion radical and 2,2-diphenyl-1-picryl hydrazyl (DPPH), 2,2’-azinobis-(3-ethyl-enzothiazoline-6-sulfonic acid) (ABTS) radical scavenging, and reducing power assay, were studied. The extract effectively scavenged hydroxyl radical, hydrogen peroxide and superoxide anion radicals. It also scavenged DPPH and ABTS radicals. Furthermore, it was found to have reducing power. All concentra
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G, Savitha, Vishnupriya V, and Surapaneni Krishnamohan. "IN VITRO ANTIOXIDANT CAPACITY AND FREE RADICAL SCAVENGING ACTIVITIES OF CARDIOSPERMUM HALICACABUM LINN." Asian Journal of Pharmaceutical and Clinical Research 11, no. 7 (2018): 421. http://dx.doi.org/10.22159/ajpcr.2018.v11i7.25044.

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Objective: Free radicals and oxidants are produced in the body during normal cellular metabolism and exposure to pollutions and ionizing radiations. They exert beneficial and harmful effects to the human body. Harmful effects of these radicals are destroyed by either antioxidants of our body in situ or antioxidants which are supplied through foods. Hence, the aim of this present study is to assess the antioxidant and free radical scavenging capacity of the easily available edible plant Cardiospermum halicacabum Linn. (Mudakathan keerai).Methods: Antioxidant and free radical scavenging activiti
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Dissertations / Theses on the topic "DPPH radical assay"

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Oliveira, Sandro de. "Determinação da capacidade antirradicalar de produtos naturais utilizando-se a quimiluminescência do luminol e ensaios fotométricos com radicais estáveis." Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/46/46136/tde-05122011-114158/.

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Os organismos vivos estão expostos à ação oxidativa de espécies reativas de oxigênio (ERO), causando uma série de doenças degenerativas como câncer, aterosclerose, diabetes, artrite e doenças do coração. Estudos têm demonstrado que o consumo de substâncias antioxidantes na dieta diária podem prevenir estes processos oxidativos que provocam o envelhecimento precoce do organismo. Nas últimas décadas tem se destacado o interesse em encontrar antioxidantes naturais para o emprego em produtos alimentícios ou farmacêuticos, com a finalidade de substituir antioxidantes sintéticos, os quais apresentam
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Book chapters on the topic "DPPH radical assay"

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Nenadis, Nikolaos, and Maria Z. Tsimidou. "DPPH (2,2-di(4-tert-octylphenyl)-1-picrylhydrazyl) radical scavenging mixed-mode colorimetric assay(s)." In Measurement of Antioxidant Activity & Capacity. John Wiley & Sons, Ltd, 2017. http://dx.doi.org/10.1002/9781119135388.ch8.

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Vasishta, P. A., K. Harini, and S. Rajeshkumar. "Free Radical Scavenging Activity of Acacia and Stevia and Stevia Mediated Selenium Nanoparticles using DPPH and H2O2 Assay." In Advances in Sports Science and Technology. CRC Press, 2025. https://doi.org/10.1201/9781003616283-176.

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Florin Danet, Andrei. "Recent Advances in Antioxidant Capacity Assays." In Antioxidants - Benefits, Sources, Mechanisms of Action. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.96654.

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This work presents a survey of the important antioxidant capacity/activity assays applied for a diversity of samples including plant extracts, foods, biological material, etc. The published materials are critically discussed, emphasizing the recent findings in the field. New and emergent antioxidant capacity assays, such as nanoparticles-based assay, are also presented. The discussion includes chemical-based methods as well as biochemical and cellular assays. Chemical methods detailed are radical/ROS-based scavenging assays (the trolox equivalent antioxidant capacity (TEAC/ABTS), 2,2-diphenyl-
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Dutta, Amit Kumar. "Green Biosynthesis of Carbon-Based Nanomaterials for Antioxidant, Anti-Bacterial, and Anti-Cancer Applications." In Sustainable Chemistry and Pioneering Green Engineering Solutions. IGI Global, 2025. https://doi.org/10.4018/979-8-3373-1409-9.ch005.

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This chapter focused on the development of nano-scaled carbon-based materials based on simple, green approach using natural resources such as extracts of various plants or fruit/vegetable peel waste, tea, coffee, alovera, as well as citrus fruits- grape, lemons, oranges etc. for antioxidant, anti-bacterial and anti-cancer applications. The surface functionalization with the high level of polyphenolic compounds, that resist the body from free-radical damage, have been confirmed through FTIR, EDX analysis which can enhance their stability, impart bio-compatibility, anti-bacterial, anti-microbial
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Kusmiati, Kusmiati, Fifi Afiati, Chrisna Widhiani, Alpinna Aditia, Destia D. Elviani, and Atit Kanti. "The Potential of Lutein Extract of Tagetes erecta L. Flower as an Antioxidant and Enhancing Phagocytic Activity of Macrophage Cells." In Innovation in the Food Sector Through the Valorization of Food and Agro-Food By-Products. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.95965.

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Marigold flower (Tagetes erecta L.) produces lutein compounds which present biological activities such as antioxidant, antiinflammatory, antimutagenicity, and immunomodulatory effects. The study was to investigate the antioxidant activity of the lutein of T. erecta L. and the effect of lutein on the activity and phagocytic capacity of macrophage cells. The antioxidant screening was carried out using diphenyl picrylhydrazyl (DPPH), 2,2′-and-bis(3-ethylbenzothiazoline-6-sulphonic acid (ABTS) radical scavenging assay with serial concentrations and ferric-reducing antioxidant power (FRAP) method.
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Malki, Fatiha. "Estimation of Antioxidant Capacity of Some Amidine Derivatives Using DPPH Free Radical Scavenging Assay: An In vitro Study." In Progress in Chemical Science Research Vol. 7. B P International (a part of SCIENCEDOMAIN International), 2023. http://dx.doi.org/10.9734/bpi/pcsr/v7/5154e.

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Shobana, G., N. Agnel Arul John, and Hari Haran Govindasamy. "Comparative Study of Phytochemical Profile and In Vitro Antioxidant Potentials of Three Common Medicinal Herbs." In Advances in Bioinformatics and Biomedical Engineering. IGI Global, 2024. http://dx.doi.org/10.4018/979-8-3693-6105-4.ch003.

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The study aimed at evaluating the phytochemical profile and invitro antioxidant potentials of a three medicinal herbs including Calendula officinalis L, Lantana camara L., Desmodium gangeticum L. The aqueous extract of the selected plants were evaluated for phytochemical screening and antioxidant activities using DPPH, reducing power, hrdroxy radical, and nitric oxide radical scavenging assays. The present study exhibited higher yields of phytochemical constituents and noticeable antioxidative properties.
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Thangaraj, Parimelazhagan, Pezzuto M. John, Tamara P. Kondratyuk, Eun-Jung Park, Murugan Rajan, and Simeon O. Kotchoni. "Inhibition of Nitric Oxide and Free Radical Production by Leaf and Stem Extracts of Psychotria nilgiriensis." In Bioactive Compounds from Medicinal Plants for Cancer Therapy and Chemoprevention. BENTHAM SCIENCE PUBLISHERS, 2024. http://dx.doi.org/10.2174/9789815238549124010008.

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Psychotria nilgiriensis was used in traditional medicine as to cure chronic inflammatory diseases. Therefore, the evaluation of different combination of solventbased fractions from stem and leaves of P. nilgiriensis for free radical scavenging activity, inhibitory potential against nitric oxide radicals, and tentative identification of active metabolites were carried out. The antioxidant activity of solvent extracts was determined by DPPH· scavenging, TAC, and ORAC assays using spectrophotometer analysis. Further, nitric oxide production inhibition was studied in lipopolysaccharide (LPS)-activ
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Salhi, Amin, Chahid Zannagui, Abdellah Elyoussfi, et al. "Exploring the Antioxidant Activity of Selected Aromatic and Medicinal Plants." In Medicinal Plants - Harnessing the Healing Power of Plants. IntechOpen, 2024. http://dx.doi.org/10.5772/intechopen.1005878.

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This study explores the in vitro antioxidant activity of three plants: Pistacia lentiscus, Mentha pulegium, and Tetraclinis articulata. Initially, we quantified the total polyphenol, flavonoid, and flavonol content in each extract. Subsequently, the antioxidant potential was assessed using DPPH radical scavenging, ferric reducing antioxidant power (FRAP), and β-carotene bleaching assays. Our findings revealed that the crude extracts exhibited significant anti-radical and antioxidant activities, correlating with their polyphenol and flavonoid contents. A linear relationship was established, wit
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Conference papers on the topic "DPPH radical assay"

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Moldovan, Camelia, Viorica-Mirela Popa, Aurica Breica Borozan, Diana-Nicoleta Raba, and Delia-Gabriela Dumbrava. "ROSEHIP CHUTNEY - A VALUABLE SOURCE OF ANTIOXIDANTS." In 23rd SGEM International Multidisciplinary Scientific GeoConference 2023. STEF92 Technology, 2023. http://dx.doi.org/10.5593/sgem2023v/6.2/s25.44.

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The new tendency of consumers and processors in the food industry is to use organic products. Because intensive crops involve the use of pesticides and fertilizers, a bio alternative to tomatoes can be the rosehip from spontaneous flora. In this study, four variants (control, sweet, spicy and hot) of rosehip chutney were prepared as an alternative for tomato ketchup. The sensory characteristics were evaluated (by hedonic scale). The vitamin C content (by titrimetric iodometric method), polyphenols content (by Folin Ciocalteu assay) and free radical inhibition activity (by DPPH assay) were dete
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Janić, Marijana, Aleksandar Krstić, Ana Valenta Šobot, et al. "DIFFERENCE IN PHYTOCHEMICAL COMPOSITION AND ANTIOXIDANT ACTIVITY SCREENING OF TWO METHANOLIC SAGE EXTRACTS." In 8th Workshop Food and Drug Safety and Qualit. Vinča Institute of Nuclear Sciences - National Institute of the Republic of Serbia, 2024. http://dx.doi.org/10.46793/8fdsq.pb3mj.

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Sage has been used in traditional medicine to prevent and treat many health problems. This study aimed to determine and compare the phytochemical composition and antioxidative activity of sage leaf extracts obtained with 50% methanol (50MSE) and 80% methanol (80MSE). We determined the total phenolic content (TPC), total tannin content (TTC), and total flavonoid content (TFC) in extracts. Terpenoids were identified using gas chromatography-mass spectrometry (GC–MS), and the radical scavenging capacity of extracts was measured using DPPH assay. TPC was higher in 80MSE, TTC was higher in 50MSE, a
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Jocić, Ana, Slađana Marić, Jasmina Mušović, Danijela Tekić, and Aleksandra Dimitrijević. "EFFICIENT REMOVAL OF DELTAMETHRIN AND CLOMAZONE FROM WATER USING IONIC LIQUID-BASED AQUEOUS BIPHASIC SYSTEMS." In 8th Workshop Food and Drug Safety and Qualit. Vinča Institute of Nuclear Sciences - National Institute of the Republic of Serbia, 2024. http://dx.doi.org/10.46793/8fdsq.pb4aj.

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Sage has been used in traditional medicine to prevent and treat many health problems. This study aimed to determine and compare the phytochemical composition and antioxidative activity of sage leaf extracts obtained with 50% methanol (50MSE) and 80% methanol (80MSE). We determined the total phenolic content (TPC), total tannin content (TTC), and total flavonoid content (TFC) in extracts. Terpenoids were identified using gas chromatography-mass spectrometry (GC–MS), and the radical scavenging capacity of extracts was measured using DPPH assay. TPC was higher in 80MSE, TTC was higher in 50MSE, a
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Dumbrava, Delia-Gabriela, Aurica Breica Borozan, Diana-Nicoleta Raba, Viorica-Mirela Popa, and Camelia Moldovan. "COCONUT MILK-BASED CHEESE ALTERNATIVES - ANTIOXIDANT, NUTRITIONAL AND SENSORY PROPERTIES." In 23rd SGEM International Multidisciplinary Scientific GeoConference 2023. STEF92 Technology, 2023. http://dx.doi.org/10.5593/sgem2023v/6.2/s25.10.

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Vegan alternatives to cheeses are in growing demand in European markets as more and more people are either lactose intolerant or switching to a plant-based diet. When the consumer chooses to buy a vegan cheese, his expectations are that the vegan product has the nutritional and organoleptic characteristics as similar as possible to those of conventional cheeses. This work aimed to obtain two variants of vegan alternative to cheese, using coconut milk as the raw material: one with the addition of white pepper and garlic powder (C1) and the second with the addition of turmeric and paprika (C2).
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Dumbrava, Delia-Gabriela, Cristian-Alin Costescu, Diana-Nicoleta Raba, Viorica-Mirela Popa, and Camelia Moldovan. "ANTIOXIDANT, NUTRITIONAL AND SENSORY CHARACTERISTICS OF TWO INNOVATIVE TYPES OF GLUTEN-FREE BREAD." In 22nd SGEM International Multidisciplinary Scientific GeoConference 2022. STEF92 Technology, 2022. http://dx.doi.org/10.5593/sgem2022v/6.2/s25.09.

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In recent years, because the gluten intolerance has become a worldwide problem, there were a sharp increase in the consumers demand for gluten-free bakery products that to be attractive, both in terms of sensory and nutritional value. This work had as a first goal obtaining of two innovative gluten-free bread types, one from almond flour, brown rice flour and psyllium bran (P1), and the second from buckwheat flour and psyllium bran (P2). A second aim of the paper was to determine total polyphenols (FolinCiocalteu method) and antioxidant activity (DPPH free radical assay) both for raw materials
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Varela, D., R. O’Hara, and A. C. Neves. "BY-PRODUCTS OF THE WHELK PROCESSING INDUSTRY AS VALUABLE SOURCE OF ANTIOXIDANT PEPTIDES." In World Conference on Waste Management. The International Institute of Knowledge Management, 2021. http://dx.doi.org/10.17501/26510251.2021.1103.

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The fish and shellfish industry processes 851,984 tonnes of fish per year worldwide. However, only 43% of that is consumed, and valuable proteins are processed as waste. Protein hydrolysates are widely used in food technology for their nutritional and functional properties. The goal of this project is to extract protein from whelk by-products derived from the shellfish processing industry and create protein hydrolysates that have marketable value. The by-products were divided into two types: raw (R) and cooked byproduct (C). The proteins were extracted using the pH shift method and quantified
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Lupaescu, Ancuta-Veronica, Nicoleta Flutur, Brindusa-Alina Petre, Monica Iavorschi, and Florin Ursachi. "ENHANCING THE ANTIOXIDANT ACTIVITY OF CHAMOMILE: EXPLORING THE IMPACT OF ULTRASOUND ON PROTEIN EXTRACTION." In 23rd SGEM International Multidisciplinary Scientific GeoConference 2023. STEF92 Technology, 2023. http://dx.doi.org/10.5593/sgem2023v/6.2/s25.20.

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Chamomile flower, a well-known medicinal plant, possesses significant antioxidant properties attributed to its diverse array of bioactive compounds, including antioxidant proteins. These proteins are vital in combating oxidative stress and neutralizing harmful free radicals. To fully harness the antioxidant potential of chamomile, it is imperative to optimize the extraction methods. This study evaluates the effectiveness of nonconventional mechanical extraction methods using ultrasound to extract antioxidant compounds from chamomile, comparing it with a traditional agitation-based technique. T
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Đorđević, Neda, Nevena Todorović Vukotić, Branislav Nastasijević, et al. "EFFECT OF MELATONIN TREATMENT DURING VINIFICATION ON TOTAL PHENOLIC CONTENT AND ANTIOXIDANT ACTIVITY OF MOLDOVA WINE." In 8th Workshop Food and Drug Safety and Qualit. Vinča Institute of Nuclear Sciences - National Institute of the Republic of Serbia, 2024. http://dx.doi.org/10.46793/8fdsq.pd3dj.

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Melatonin, a hormone secreted by the pineal gland, is also found in certain seeds, leaves, and fruits, including grapes and wines. It is also produced during vinification through yeast inoculation. Known for its various health benefits, including antioxidant effects and influence on polyphenol biosynthesis in plants, the question arises whether adding melatonin during vinification can enhance wine quality. This study aimed to investigate the impact of melatonin addition on the total phenolic content and antioxidant activity of Moldova red wine. Results indicated an 8% increase in total phenoli
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Jeremić, Svetlana, Nenad Janković, Jelena Đorović Jovanović, and Zoran Marković. "The assessment of the antioxidant capacity of the selected vanillin-based pyrido-dipyrimidines using DPPH assay: in silico approach." In 2nd International Conference on Chemo and Bioinformatics. Institute for Information Technologies, University of Kragujevac, 2023. http://dx.doi.org/10.46793/iccbi23.613j.

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It is known that pyridine derivatives possess significant biological activity, and that vanillin is a natural aromatic compound with pharmacoecological properties. Earlier research indicated that among the series of synthesized vanillin-based pyrido-dipyrimidine compounds, two of them show significant antioxidative activity. Based on the thermodynamic parameters obtained using the DFT method, the operative mechanism of the reaction of the investigated antioxidants with the DPPH radical was considered. Calculations are done in water, methanol, and benzene, to imitate real experimental condition
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Azizzuddin, Norafida, and Aminah Abdullah. "Effect of blanching treatments on antioxidant activity of frozen green capsicum (Capsicum annuum L. var bell pepper) using radical scavenging activity (DPPH) assay." In THE 2016 UKM FST POSTGRADUATE COLLOQUIUM: Proceedings of the Universiti Kebangsaan Malaysia, Faculty of Science and Technology 2016 Postgraduate Colloquium. Author(s), 2016. http://dx.doi.org/10.1063/1.4966775.

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Reports on the topic "DPPH radical assay"

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ภู่ทอง, ทรงจันทร์, กิตตินันท์ โกมลภิส, อุมาพร พิมพิทักษ์ та อณุมาศ บัวเขียว. ฤทธ์ต้านอนุมูลอิสระและยับยั้งการเจริญฃองเซลล์มะเร็งจากสารสกัดใบชะอม. จุฬาลงกรณ์มหาวิทยาลัย, 2018. https://doi.org/10.58837/chula.res.2018.103.

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สารต้านอนุมูลอิสระจากธรรมชาติที่มีในพืชผักที่บริโภคประจำวันได้รับความสนใจมากเพราะมีความปลอดภัยในการใช้มากกว่าสารต้านอนุมูลอิสระสังเคราะห์ จากรายงานต่างๆ พบว่าสารพฤกษเคมี โดยเฉพาะอย่างยิ่งสารประกอบฟินอลิกบางชนิดมีฤทธิ์ในการต้านอนุมูลอิสระ จากการวิเคราะห์ผักพึ้นบ้านที่นิยมบริโภค 20 ชนิดพบว่า ชะอม (Acacia pennata) มีปริมาณสารประกอบฟินอลิกสูงมากที่สุดถึง 45.3 ไมโครกรัมกรดแกลลิกต่อมิลลิกรัมของสารสกัดแห้ง ดังนั้นในงานวิจัยนี้จึงทำการทดสอบความสามารถในการต้านอนุมูลอิสระของสารสกัดหยาบจากใบชะอมที่เป็นใบสด (F) และใบแห้ง (D) ที่ได้จากการสกัดด้วยน้ำ (H) หรือ 95% เอทานอล (E) จากการทดสอบฤทธิ์ต้านอนุมูลอิสระด
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