Related Experiment Video

Updated: Jan 21, 2026

Extraction and Analysis of Microbial Phospholipid Fatty Acids in Soils
10:03

Extraction and Analysis of Microbial Phospholipid Fatty Acids in Soils

Published on: August 26, 2016

32.3K

Stable Isotope Probing of Microbial Phospholipid Fatty Acids in Environmental Samples

Andrea Watzinger1, Rebecca Hood-Nowotny2

  • 1Institute of Soil Research, University of Natural Resources and Life Sciences Vienna, Tulln, Austria. andrea.watzinger@boku.ac.at.

Methods in Molecular Biology (Clifton, N.J.)
|August 14, 2019
PubMed

Keywords:
Alkaline methylationEnvironmental samplesFatty acid methyl esterGC-IRMSLipid extractionMicroorganismsPhospholipid fatty acidSeparationSolid-phase extractionStable isotope probing

More Related Videos

DNA Stable-Isotope Probing DNA-SIP14:57

DNA Stable-Isotope Probing DNA-SIP

Published on: August 2, 2010

45.1K
Preparation, Purification, and Use of Fatty Acid-containing Liposomes10:43

Preparation, Purification, and Use of Fatty Acid-containing Liposomes

Published on: February 9, 2018

82.2K

Related Concept Videos

Isotopes01:12

Isotopes

Elements have a set number of protons that determines their atomic number (Z). For example, all atoms with eight protons are oxygen; however, the number of neutrons can vary for atoms of the same element. The sum of the number of protons and the number of neutrons is the mass number (A). Atoms with the same atomic number but different mass numbers are called isotopes. Elements can have multiple isotopes, for example, carbon-12, carbon-13, and carbon-14.
An element's atomic mass, or weight,...
63.3K
Overview of Fatty Acid Metabolism01:28

Overview of Fatty Acid Metabolism

Lipids also are sources of energy that power cellular processes. Like carbohydrates, lipids are composed of carbon, hydrogen, and oxygen, but these atoms are arranged differently. Most lipids are nonpolar and hydrophobic. Major types include fats and oils, waxes, phospholipids, and steroids.
Fatty acids are catabolized in a process called beta-oxidation, which takes place in the matrix of the mitochondria and converts their fatty acid chains into two-carbon units of acetyl groups. The acetyl...
36.7K
Elements: Chemical Symbols and Isotopes02:31

Elements: Chemical Symbols and Isotopes

A chemical symbol is an abbreviation used to indicate an element or an atom of an element. For example, the symbol for mercury is Hg. The same symbol is used to indicate one atom of mercury (microscopic domain) or to label a container of many atoms of the element mercury (macroscopic domain).
Some symbols are derived from the common English name of the element; others are abbreviations of the name in another language — Latin, Greek or German. For example, the symbol for aluminum (common name)...
125.2K
Isotopes and Radioisotopes01:28

Isotopes and Radioisotopes

In the early 1900s, English chemist Frederick Soddy realized that an element could have atoms with different masses that were chemically indistinguishable. These different types are called isotopes — atoms of the same element that differ in mass. Isotopes differ in mass because they have different numbers of neutrons but are chemically identical because they have the same number of protons. Soddy was awarded the Nobel Prize in Chemistry in 1921 for this discovery.
An isotope containing...
11.1K
Mass Spectrometry: Isotope Effect01:13

Mass Spectrometry: Isotope Effect

Most elements exist in nature as a mixture of isotopes. The isotopes differ in weight due to their respective number of neutrons. The molecular weight of a molecule is different depending on the specific isotope of its elements involved. As a result, the mass spectrum of the molecule exhibits peaks from the same fragment at multiple positions. The positions of these mass signals depend on the mass differences between isotopes. Furthermore, the intensity of these signals is dependent on the...
3.9K
Amino acids03:42

Amino acids

Amino acids are the monomers that comprise proteins. Each amino acid has the same fundamental structure, which consists of a central carbon atom, or the alpha (α) carbon, bonded to an amino group (NH2), a carboxyl group (COOH), and to a hydrogen atom. Every amino acid also has another atom or group of atoms bonded to the central atom known as the R group. There are 20 common amino acids present in proteins, each with a different R group. Variation in the amino acid sequence is responsible for...
104.6K