Organic Acid Detection

Organic acid detection is the identification and measurement of acids containing carbon, such as lactic, acetic, citric, and fatty acids, in biological samples and systems. Depending on the target and required sensitivity, detection may rely on changes in pH or color, selective enzymatic reactions, chromatographic separation, or biosensors that convert chemical interactions into measurable signals. In biology, these methods help assess cellular metabolism, fermentation, microbial activity, food and environmental samples, and disease-related changes in body fluids. Reliable detection and quantification can reveal metabolic pathways, monitor physiological conditions, and support research into how organisms produce, use, and regulate organic acids.

Organic Acid Detection - Related Videos

Education

JoVE Core - Microbiology

Production of Organic Acids

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2026

Lactic acid, an important organic acid extensively applied in food, pharmaceutical, and biodegradable polymer industries, is primarily produced via microbial fermentation. This method is favored over chemical synthesis due to its environmental sustainability and capacity for enantiomerically pure product formation. Among various microbial processes, the fermentation of starch-based substrates stands out due to the abundance and renewability of raw materials like corn and potatoes.Hydrolysis of...

Research

JoVE Journal - Biochemistry

Personalized Peptide Arrays for Detection of HLA Alloantibodies in Organ Transplantation

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Cited by 2 •

2017

Mismatches in human leukocyte antigen (HLA) sequences between organ donor and recipient pairs are the major cause of antibody-mediated rejection in organ transplantation. Here we present the use of custom antigen arrays that are based on individual donors' HLA sequences to probe anti-donor HLA alloantibodies in organ recipients.

Using Capillary Electrophoresis to Quantify Organic Acids from Plant Tissue: A Test Case Examining Coffea arabica Seeds

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Cited by 2 •

2016

This article presents a method for the detection and quantification of organic acids from plant material using free zonal capillary electrophoresis. An example of the potential application of this method, determining the effects of a secondary fermentation on organic acid levels in coffee seeds, is provided.

Research

JoVE Journal - Biology
Free Sample

One-step Metabolomics: Carbohydrates, Organic and Amino Acids Quantified in a Single Procedure

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Cited by 12 •

2010

The urease method of sample preparation for GC/MS analysis of intermediary metabolites is presented by its inventor. The method allows one-step follow-up of newborn screening for inborn errors by tandem mass spectrometry by quantifying carbohydrates, organic and amino acids all in a single process.

Staining of Proteins in Gels with Coomassie G-250 without Organic Solvent and Acetic Acid

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Cited by 94 •

2009

A short protocol for protein staining with Coomassie Brilliant Blue (CBB) G-250 in polyacrylamide gels is described without using organic solvents or acetic acid as in the classical staining procedures with CBB.

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