Related Experiment Video

Updated: Apr 10, 2026

A Generalized Method for Determining Free Soluble Phenolic Acid Composition and Antioxidant Capacity of Cereals and Legumes
10:30

A Generalized Method for Determining Free Soluble Phenolic Acid Composition and Antioxidant Capacity of Cereals and Legumes

Published on: June 10, 2022

8.4K

[Anti-complementary phenolic acids from Lonicera japonica]

Fu-yong Ni, Lu Liu, Ya-ling Song

    Zhongguo Zhong Yao Za Zhi = Zhongguo Zhongyao Zazhi = China Journal of Chinese Materia Medica
    |June 18, 2015
    PubMed
    Summary

    Phenolic acids from Lonicera japonica exhibit significant anti-complementary activity. 3,5-di-O-caffeoylquinic acid demonstrates potent inhibition of the classical complement pathway, suggesting its potential as a therapeutic agent.

    More Related Videos

    Semi-Targeted Ultra-High-Performance Chromatography Coupled to Mass Spectrometry Analysis of Phenolic Metabolites in Plasma of Elderly Adults14:39

    Semi-Targeted Ultra-High-Performance Chromatography Coupled to Mass Spectrometry Analysis of Phenolic Metabolites in Plasma of Elderly Adults

    Published on: April 22, 2022

    4.5K
    Extraction and Purification of Polyphenols from Freeze-dried Berry Powder for the Treatment of Vascular Smooth Muscle Cells In Vitro12:00

    Extraction and Purification of Polyphenols from Freeze-dried Berry Powder for the Treatment of Vascular Smooth Muscle Cells In Vitro

    Published on: July 5, 2017

    20.2K

    Related Concept Videos

    Oxidation of Phenols to Quinones01:17

    Oxidation of Phenols to Quinones

    In the presence of oxidizing agents, phenols are oxidized to quinones. Quinones can be easily reduced back to phenols using mild reducing agents. The electron-donating hydroxyl group enhances the reactivity of the aromatic ring, enabling oxidation of the ring even in the absence of an α hydrogen.
    o-hydroxy phenols are oxidized to o-quinones and p-hydroxy phenols to p-quinones. Such redox reactions involve the transfer of two electrons and two protons. The reversible redox...
    5.3K
    Organic Compounds03:02

    Organic Compounds

    All living things are formed mostly of carbon compounds called organic compounds. The category of organic compounds includes both natural and synthetic compounds that contain carbon. Although a single, precise definition has yet to be identified by the chemistry community, most agree that a defining trait of organic molecules is the presence of carbon as the principal element, bonded to hydrogen and other carbon atoms. However, some carbon-containing compounds such as carbonates, cyanides, and...
    59.0K
    Alkylation of β-Diester Enolates: Malonic Ester Synthesis01:14

    Alkylation of β-Diester Enolates: Malonic Ester Synthesis

    Malonic ester synthesis is a method to obtain α substituted carboxylic acids from ꞵ-diesters such as diethyl malonate and alkyl halides.
    4.4K
    Loss of Carboxy Group as CO2: Decarboxylation of Malonic Acid Derivatives01:35

    Loss of Carboxy Group as CO2: Decarboxylation of Malonic Acid Derivatives

    Just like β-keto acids—which upon thermal decarboxylation form ketones—β-dicarboxylic acids undergo decarboxylation to generate monocarboxylic acids with the liberation of carbon dioxide.
    2.9K
    Composition of Polyprotic Acid Solutions as a Function of pH01:19

    Composition of Polyprotic Acid Solutions as a Function of pH

    Polyprotic acids of the type H2M constitute two ionizable protons. As a result, on titration with a base, they exhibit two equivalence points in the titration curve. During titration, the species H2M, HM−, and M2− will be present in the solution at different points. The fractions of H2M, HM−, and M2− present at the various instances of the titration are denoted by α0, α1, and α2, respectively.
    A graph with the alpha values is plotted against the volume of...
    1.1K