Related Experiment Videos
Isolation of proline and hydroxyproline from fossil bone
Life Sciences
|August 30, 1982
Summary
Researchers developed a fast method to isolate proline and hydroxyproline from fossil bones. This technique aids in precise radiocarbon dating and paleodiet analysis using stable isotopes.
Area of Science:
- Paleoanthropology
- Biogeochemistry
- Analytical Chemistry
Background:
- Accurate paleodietary reconstructions and bone dating rely on precise analysis of bone collagen.
- Imino acids, proline and hydroxyproline, are key components of collagen but their isolation from fossil bone is challenging.
Purpose of the Study:
- To develop a simple, rapid, and effective procedure for isolating proline and hydroxyproline from fossil bone.
- To provide purified imino acids suitable for bone carbon dating and stable carbon isotope ratio analysis.
Main Methods:
- Isolation of gelatin from fossil bone.
- Hydrolysis of gelatin followed by purification using XAD-2 resin.
- Deamination of primary amino acids with aqua regia and separation of imino acids via cation exchange chromatography.
Main Results:
- A streamlined protocol for the isolation of proline and hydroxyproline from fossil bone was successfully established.
- The purified imino acids are suitable for downstream applications in dating and isotopic analysis.
Conclusions:
- This new procedure offers a significant improvement for the analysis of fossil bone.
- It enables more accurate bone carbon dating and stable carbon isotope ratio determinations for paleodietary studies.