Plant-based polyphenolics have been reported to bestow health benefits when consumed, which are partially ascribed to their antioxidant activity. Yet, many current in vitro chemical assays to characterize antioxidant potential do not truly reflect the physiological properties of food antioxidants in vivo. The present study employed biological approaches, including a cellular antioxidant activity (CAA) and protein glycation assays, to offer an improved picture of antioxidant potential of phenolic extracts from Georgia peach cultivars. The phenolic extracts from two peach varieties, showing contrasting antioxidant capacities according to hydrophilic-oxygen radical absorbance capacity (H-ORAC) and ferric reducing antioxidant power (FRAP) assays, exhibited significant differences in two biological tests when the assays were performed on a fresh weight basis. The procyanidins fraction displayed notable antioxidant capacity, when compared to other phenolic classes in the peach extract, in these two biologically relevant assays.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.foodchem.2020.126234 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Mitochondrial DNA lineages determine tumor progression through T cell reactive oxygen signaling.
Proc Natl Acad Sci U S A
January 2025
Center for Mitochondrial and Epigenomic Medicine, The Children's Hospital of Philadelphia, Philadelphia, PA 19104.
Mitochondrial DNA (mtDNA) is highly polymorphic, and host mtDNA variation has been associated with altered cancer severity. To determine the basis of this mtDNA-cancer association, we analyzed conplastic mice with the C57BL/6J (B6) nucleus but two naturally occurring mtDNA lineages, and , where mitochondria generate more oxidative phosphorylation (OXPHOS)-derived reactive oxygen species (mROS). In a cardiac transplant model, Foxp3+ T regulatory (Treg) cells supported long-term allograft survival, whereas Treg cells failed to suppress host T effector (Teff) cells, leading to acute rejection.
View Article and Find Full Text PDFLate-stage changes in the composition of cell walls of maize plants expressing an apoplast targeted, senescence enhanced fungal ferulic acid esterase, and the subsequent effects on tissue saccharification.
PLoS One
January 2025
Department of Biology, The Pennsylvania State University, University Park, PA, United States of America.
Using maize plants expressing an apoplast targeted Aspergillus niger ferulic acid esterase (FAEA), with FAEA driven by a Lolium multiflorum senescence enhanced promoter (LmSee1), we extended measurements of FAEA activity to late-stage senescing plants and measured the stability of FAEA activity following stover storage. The impact of FAEA expression on cell wall hydroxycinnamic acid levels and arabinoxylan (AX) cross-links, and on the levels of cell wall sugars, acetyl bromide lignin and sugar release following saccharification by a cocktail of cellulases and xylanases, was assessed during plant development to full leaf senescence. These were determined in both individual internodes and in combined leaves and combined internodes of FAEA expressing and control partner plants.
View Article and Find Full Text PDFEco-friendly Synthesis of Iron Oxide Nanoparticles Using Parietaria alsinifolia Extracts and Evaluation of Biological Applications.
Appl Biochem Biotechnol
January 2025
Department of Plant Sciences, Faculty of Biological Sciences, Quaid-I-Azam University Islamabad, Islamabad, 45320, Pakistan.
The current research was conducted to synthesize Parietaria alsinifolia-mediated iron oxide nanoparticles (P.A@FeONPs) using the green and eco-friendly protocol. The biosynthesized P.
View Article and Find Full Text PDFTaxifolin regulates SLC31A1-mediated cuproptosis and tumor progression in hepatocellular carcinoma.
Hum Cell
January 2025
Infectious Disease Laboratory, Chengdu Public Health Clinical Center, Chengdu, 610061, People's Republic of China.
Hepatocellular carcinoma (HCC) is a primary malignant neoplasm exhibiting a high mortality rate. Taxifolin is a naturally occurring flavonoid compound that exhibits a range of pharmacological properties. The effects of taxifolin on HCC remain largely unexplored.
View Article and Find Full Text PDFMass-spectrometry-based quantitative proteomic analysis reveals that methylglyoxal and carnosine influence oxidative stress and RNA-processing associated proteins in renal proximal tubule epithelial cells.
Mol Biol Rep
January 2025
Department of Endocrinology, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, 230022, People's Republic of China.
Background: Tubular injury triggered by hyperglycemia is an important pathological characteristic in diabetic nephropathy (DN). Accumulated advanced glycation end products and their precursor methylglyoxal (MGO), contribute to the development of DN. Carnosine has been shown to prevent the development of DN but the underlying mechanism still needs to be studied in depth.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!