Evaluation of antioxidant activity of crocin, podophyllotoxin and kaempferol by chemical, biochemical and electrochemical assays

Phenolic Compounds as Nutraceuticals or Functional Food Ingredients

“…The apigenin revealed strongly antioxidant activity in vitro and in vivo assays through neuroprotective effects against oxidative stress [79,80]. Another flavone, kaempferol, also revealed high antioxidant activity, being recommended as a good natural antioxidant due to its tendency to donate electrons and, therefore, stabilizing food products [81].…”

“…In vitro [81] DPPH -2,2-diphenyl-1-picrylhydrazyl; PST -phase II hepatic phenol sulfotransferases In vivo (mice) [104] Reduction of nitric oxide synthase expression…”

Cyanation of Aryl and Heteroaryl Aldehydes Using In‐Situ‐Synthesized Ag Nanoparticles in Crocus sativus L. Extract

“…These medicinal applications refere to the presence of useful antioxidant and other phytochemical constituents ,. Among the bioactive components of the plant, Crocetin and Crocin are powerful antioxidants in which the Crocin shows stronger antioxidant capacity than alpha tocopherol . In fact the antioxidant behavior of Crocin is related to the sugar moiety in Crocin molecule which has a vital role in its chemical reactivity .…”

Applicability of a Voltammetric Assay Based on the Electroreduction of Oxygen to Evaluate the Antioxidant Capacity of Pequi (Caryocar brasiliense Camb.) Pulp

“…5 Therefore, the use of electrochemical techniques becomes an alternative for this analysis. 6 The processes of formation and/or stabilization of free radicals are related to oxidationreduction reactions. 7 Therefore, several studies have used voltammetric electrochemical techniques to assess the antioxidant capacity of foods and isolated compounds, since they improve methodology standardization and increase the amount of information about the compound of interest.…”

“…7 Therefore, several studies have used voltammetric electrochemical techniques to assess the antioxidant capacity of foods and isolated compounds, since they improve methodology standardization and increase the amount of information about the compound of interest. 6,[8][9][10][11][12] Voltammetry presents the following advantages over traditional spectrophotometric techniques: low operation and instrumental cost; use of less organic solvents, consequently decreasing waste generation; the analysis can be performed in the sample without pre-treatment for separation/cleaning of the compounds that affect other methods, colored materials or other dispersed solid particles; fast data acquisition, sensitivity and portability. capacity of food matrices.…”