A PHP Error was encountered

Severity: Warning

Message: file_get_contents(https://...@pubfacts.com&api_key=b8daa3ad693db53b1410957c26c9a51b4908&a=1): Failed to open stream: HTTP request failed! HTTP/1.1 429 Too Many Requests

Filename: helpers/my_audit_helper.php

Line Number: 176

Backtrace:

File: /var/www/html/application/helpers/my_audit_helper.php
Line: 176
Function: file_get_contents

File: /var/www/html/application/helpers/my_audit_helper.php
Line: 250
Function: simplexml_load_file_from_url

File: /var/www/html/application/helpers/my_audit_helper.php
Line: 3122
Function: getPubMedXML

File: /var/www/html/application/controllers/Detail.php
Line: 575
Function: pubMedSearch_Global

File: /var/www/html/application/controllers/Detail.php
Line: 489
Function: pubMedGetRelatedKeyword

File: /var/www/html/index.php
Line: 316
Function: require_once

Comparison of Antioxidant Properties and Metabolite Profiling of Leaves of Different Colors. | LitMetric

Comparison of Antioxidant Properties and Metabolite Profiling of Leaves of Different Colors.

Antioxidants (Basel)

Department of Environment Science and Biotechnology, Jeonju University, Jeonju 55069, Republic of Korea.

Published: December 2022

AI Article Synopsis

  • Maple is an ornamental plant with ecological and economic potential, known for being a rich source of polyphenols and antioxidants.
  • This study evaluated the content of various compounds in maple leaves of different colors (green, yellow, red) and found that red leaves have higher levels of total polyphenols, flavonoids, and antioxidants compared to green and yellow leaves.
  • The research revealed a positive correlation between antioxidant activity and the concentration of polyphenols and flavonoids in red maple leaves, indicating their potential for use in functional foods and medicinal applications.

Article Abstract

(maple) is a widely grown ornamental plant. In addition to its ornamental and ecological value, it also has potentially high economic value. It is a rich source of polyphenols and exhibits antioxidant activity. However, the relationship between polyphenol content and antioxidant activity in maple leaves of different colors (green, yellow, and red) has not yet been investigated. In this study, the total polyphenol (TP), total flavonoid (TFlav), tannin (TET), chlorophyll a and b (Chl a and b), total anthocyanin (TAN), and total carotene (TAC) contents in maple leaves of different colors were evaluated. Their antioxidant activities were determined based on the inhibition of lipid oxidation, DPPH scavenging, ferric ion-reducing antioxidant power, and iron-chelating abilities. The concentrations of TP, TET, TFlav, TAN, and TAC in red maple leaves were higher than those in green and yellow maple leaves. In addition, red maple leaves showed a higher antioxidant effect than the leaves of the other two colors. We observed that antioxidant activity was positively correlated with TP, TFlav, and TAN and negatively correlated with Chl a and b. Finally, we analyzed the metabolites of the different colored (i.e., green, yellow, and red) maple leaves using gas chromatography/mass spectrometry (GC/MS) and found that the metabolite profile significantly varied between the different colors. These results suggest that red leaves are a good source of polyphenols and antioxidants and have potential use in the development of functional foods and medicinal applications.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9854952PMC
http://dx.doi.org/10.3390/antiox12010065DOI Listing

Publication Analysis

Top Keywords

maple leaves
24
leaves colors
16
antioxidant activity
12
green yellow
12
red maple
12
leaves
9
source polyphenols
8
yellow red
8
tflav tan
8
leaves higher
8

Similar Publications

Want 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!