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25.02.2011· DPPH assay. This method was developed by Blois with the viewpoint to determine the antioxidant activity in a like manner by using a stable free radical α, α-diphenyl-β-picrylhydrazyl (DPPH; C 18 H 12 N 5 O 6, M = 394.33).The assay is based on the measurement of the scavenging capacity of antioxidants towards it. The odd electron of nitrogen atom in DPPH is reduced by receiving a
DPPH is a common abbreviation for the organic chemical compound 2,2-diphenyl-1-picrylhydrazyl. It is a dark-colored crystalline powder composed of stable free-radical molecules. DPPH has two major applications, both in laboratory research: one is a monitor of chemical reactions involving radicals, most notably it is a common antioxidant assay, and another is a standard of the position and
DPPH is a common abbreviation for an organic chemical compound 2,2-diphenyl-1-picrylhydrazyl. It is a dark-colored crystalline powder composed of stable free-radical molecules.
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The antioxidant activity of the extracts was assessed using the DPPH radical-scavenging method and the reducing power test. EC50 values, using the radical-scavenging method, indicate a 22%
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PDF Blumea lanceolaria is a genus of flowering plants belonging to the family Asteraceae, found in the tropical and subtropical zones of Asia, Find, read and cite all the research you need
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Screening and evaluation of antioxidant, antimicrobial, up to 4.5 m in height or sometimes a small tree distributed particularly in South and Southeast Asia. It is used as folk medicine for asthma, cough, mosquitoes bite, tonic, febrifuge, expectorant, dyspepsia, worms, leprosy, rheumatism, diarrhea, cholera, liver diseases, cardiac difficulties, paralyses, limb-pain, weakness, angina, and
Antioxidant profiling of Latkan (Baccaurea ramiflora Lour.) DPPH scavenging activity of the wine, prepared from the fruit pulp, with respect to aging in comparison with the juice. The total
aroma, which makes aromatic rice highly favoured in South East Asian and international markets. The key element that gives aromatic rice its characteristic aroma is 2-acetyl-1-
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The antioxidant effects of various plant extracts, as well as individual phenolic compounds in different muscle food systems have been evaluated and tested by various workers [1,5,7,10,11,12]. Litchi (Litchi chinensis Sonn.) is a tropical and subtropical fruit native to South East Asian countries and now widely cultivated throughout the world
26.10.2013· Clove (Syzygium aromaticum) is one of the most valuable spices that has been used for centuries as food preservative and for many medicinal purposes.Clove is native of Indonesia but nowadays is cultured in several parts of the world including Brazil in the state of Bahia. This plant represents one of the richest source of phenolic compounds such as eugenol, eugenol acetate and
The FCS exhibit wonderful antioxidant activity. Polysaccharide, GAG from H.mexicana showed 1,1-diphenyl-2-picrylhydrazyl (DPPH), superoxide and hydroxyl radicals in a dose-dependent manner (Mou et al., 2018a, Mou et al., 2018b).Some species in Echinodermata exhibit tetrafucose repeating unit fucoidan (Ta-FUC) from egg jelly of sea urchin (Strongylocentrotus pallidus) and sea cucumber
Antioxidant and Antimicrobial Activity of Zingiberaceae Plants in Taiwan I-Nan Chen & Chen-Chin Chang & Chang-Chai Ng & Chung-Yi Wang & Yuan-Tay Shyu & Tsu-Liang Chang Published online: 20 December 2007 # Springer Science + Business Media, LLC 2007 Abstract The rhizomes of the Zingiberaceae family are a vegetable widely used in many Asian countries, and their medicinal
IC 50 values were calculated for the DPPH and ABTS methods. Result: The study revealed that the methanol extract of H. ovalis has greater antioxidant activity than H. beccarii. Methanol extract of
It grows mainly in Southeast Asia, and also in tropical countries such as Colombia, Sri Lanka, in the state of Kerala in India and in Puerto Rico and Hawaii [106,107,58, 108-111],where the tree
The antioxidant capacity of this fraction was studied by ferric reducing antioxidant power (FRAP) and DPPH radical assays. This polymeric fraction, ≥88% of which gets precipitated with Yariv
All extracts and isolated compounds were subjected to screening of antioxidant activity using DPPH free radical scavenging method and cytotoxic activities by MTT assay towards human T4
Caesalpinia sappan L. is a plant of Leguminosae family, commonly known as Brazil or Sappan wood (). C. sappan (CS) is distributed in Southeast Asia and its dried heartwood has been used as traditional ingredient of food or beverages .The heartwood of the plant is commonly used for the extraction of red dye. The heartwood of CS has long been used in Thai folk medicine to treat tuberculosis
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Download Citation Phenolics from Durian Exert Pronounced NO Inhibitory and Antioxidant Activities Durian, known as the king of fruits, is native to Southeast Asia and popular in many countries.
Proximate composition, phytochemical screening and antioxidant activity of ten selected edible mushrooms. Am J Food Nutr 2011; 1(2): 89-94.  Keles A, Koca I, Genccelep H. Antioxidant properties of wild edible mushrooms. Food Process Technol 2011; doi:10.4172/2157- 7110.1000130.  Sofowora A. Medicinal plants and traditional medicines in Africa. 2nd ed. Ibadan, Nigeria: Spectrum
Ten phenolic compounds were isolated from a butanol fraction of sage extracts. Their structures were determined by spectral methods (NMR, MS, IR). Among them, a novel compound, 4-hydroxyacetophenone-4-O-β-d-apiofuranosyl-(1→6)-O-β-d-glucopyranoside, was identified. Two test systems, DPPH free radical scavenging activity and radical cation ABTS•+ scavenging activity, were
Anti-inflammatory and Antioxidant Activity of Strychnos nux vomica Linn. Article (PDF Available) in American-Eurasian Journal of Sustainable Agriculture 3(2):244-252 · January 2009 with 1,010 Reads
14.09.2009· In the DPPH assay, the antioxidants are able to donate a hydrogen to reduce the stable radical DPPH to the yellow-coloured non-radical diphenyl-picrylhydrazine (DPPH-H). DPPH is usually used as a reagent to evaluate free radical scavenging activity of antioxidants based on the absorption change of DPPH at 517 nm measured spectrophotometrically. Similar to DPPH, galvinoxyl is a stable
Fermentation has been used for “manufacturing” simple compounds (e.g. ethanol) and highly complex macromolecules (e.g. polysaccharides, proteins and enzymes), including bioactive metabolites (e.g. lactoferrin and flavonoids), from raw materials containing their precursors ().The newly generated substances can not only extend food shelf life and ensure safety, but also improve the sensory
The results were compared with authorized limits of these metals in Association of South East Asian Nations (ASEAN In DPPH and FRAP assays, the antioxidant activities of 40% v/v ethanol extracts were stronger than those of aqueous extracts. Therefore, it could be assumed that the high antioxidant activities displayed by 40% v/v ethanol extracts were associated with the large contents of
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Moreover, the antioxidant activities of these dark teas were analyzed using the 1,1-diphenyl-2-picrylhydrazyl (DPPH) assay, 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) diammonium salt (ABTS) assay, ferric reducing antioxidant power (FRAP) assay, and cellular antioxidant activity (CAA) assay (HepG2 cells). The fat metabolism modulation activities (FMMA) of the dark teas were
Nephelium lappaceum and its by-products have great potential in the agricultural, pharmaceutical, and food industries. Some studies have shown that N. lappaceum by-products exhibit antimicrobial, antioxidant, antidiabetic, and anticancer properties. However, studies focused on identifying these compounds are rare. The availability of polyphenolic compounds can vary according to environmental