Determination of total phenolics
WebDec 15, 2024 · The Folin–Ciocalteu (F-C) reaction is an antioxidant assay based on electron transfer, which measures the reductive capacity of an antioxidant. It has been widely applied in determination of the total phenol/polyphenol content of plant-derived food and biological samples. WebApr 12, 2024 · The highest total phenolic content of 8307.4 mg kg−1 was determined in ‘Granatina’, with the main contribution of phenolic acid content of 7001.7 mg kg−1 and a significantly lower total flavonoid content of 1304.6 mg kg−1. ... Determination of Phenolic Compounds Using HPLC. Individual phenolic compounds were determined using an …
Determination of total phenolics
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WebAug 1, 2024 · Determination of total phenolic content (TPC) The total phenolic content of the extracts was determined using Folin-Ciocalteu assay [12]. The Folin-Ciocalteu method is an electron transfer based assay, and gives reducing capacity which is expressed as phenolic content. Total phenolic content of plant extracts and their yield depends on the ... WebOct 22, 2024 · Determination of Total Phenolics, Flavonoids, and Antioxidant Activity and GC-MS Analysis of Malaysian Stingless Bee Propolis Water Extracts Scientifica (Cairo). …
WebNov 6, 2024 · In addition to the determination of the quali-quantitative profile of phenolics, it is also possible to achieve the quantification of the total content of specific classes of compounds. In this context, it is absolutely noteworthy to mention the Folin-Ciocalteu’s procedure for the determination of the total phenolic content. WebNov 9, 2024 · The total phenolic content determined by the proposed procedure (146 ± 4 mg GAE g−1 dry weight) agreed with the reference procedure (145.0 ± 0.7 mg GAE g−1 dry weight) at the 95% of confidence level. Due to these characteristics, the proposed approach is an alternative for screening fruits in research with bioactive compounds ...
WebApr 12, 2007 · Although the F–C assay has commonly been used to assay 'total phenolic content' 7,11, the assay also measures other readily oxidized substances 13,14.When … WebApr 12, 2007 · Although the F–C assay has commonly been used to assay 'total phenolic content' 7,11, the assay also measures other readily oxidized substances 13,14.When we performed the F–C assay with ...
WebJun 7, 2024 · Examples of different phenolics in food products. Full size image. Assays described in this chapter are of four types: (total) phenolics, hydrogen atom transfer …
WebJan 1, 2002 · The total phenolic content (TPC) was determined by using the Folin-Ciocalteu method as described in the literature [23,24]. The following protocol was … dunkley way northamptonWebHPLC determination of phenolics. Identification and quantification of common phenolic compounds were conducted by HPLC, using an ADME column (5 μm; 250 × 4.6 mm) for the separation. ... The total phenolic content (TPC) and free phenolic profiles of different MLEs are shown in (Table 1). The total amount of free phenolics ranged from 5957.53 ... dunkley ward camden and islingtonWebApr 26, 2005 · Methods available for the measurement of antioxidant capacity are reviewed, presenting the general chemistry underlying the assays, the types of molecules detected, and the most important advantages and shortcomings of each method. dunkley\\u0027s gymnastics campWebDetermination of Total Phenol and Total Flavonoid Gallic acid calibration curves as standard phenol compounds are presented in Fig. 1, while quercetin as standard … dunkley whippet motorcycleWebApr 5, 2024 · 2.4.1 Determination of total phenolic content (TPC) As Rashed et al. described, Singleton and Rossi's colorimetric oxidation reaction technique was used to determine the TPC of plant powder extract. The results were presented as mg gallic acid equivalents per gram of dry matter (mg GAE ... dunkley wellingboroughWebTotal phenolic and flavonoid contents were evaluated using Folin–Ciocalteu colorimetric and aluminium chloride methods, respectively, while the antioxidant activity was analysed using 1,1-diphenyl-2-picrylhydrazyl (DPPH) free radical scavenging assay. dunkley whippetWebApr 14, 2024 · The utilization of phenolic compounds from wine wastes as a source of biologically active compounds has attracted the attention of many researchers focusing on grape seeds, grape skins and pomace [1,2,3,4,5,6].For example, flavonoids are attracting great interest due to their good antioxidant, antimicrobial, antiviral and antifungal … dunklincountycollector.com