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Related Experiment Videos

Pru p 3 (LTP) content in peach extracts.

J Carnés1, E Fernández-Caldas, M T Gallego

  • 1C.B.F. LETI, S.A. Research Laboratories, Calle del Sol 5, 28760 Tres Cantos, Madrid, Spain.

Allergy
|October 3, 2002
PubMed
Summary

Peach peel contains significantly higher levels of lipid transfer proteins (LTPs) than pulp. This study purified LTP and developed a method to quantify it, confirming LTP

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Area of Science:

  • Food science and allergy research.
  • Biochemistry of plant proteins.

Background:

  • Lipid transfer proteins (LTPs) are common in fruits.
  • LTP sensitization frequently occurs in patients with fruit allergies.

Purpose of the Study:

  • To purify LTP from peach.
  • To quantify LTP content in peach peel and pulp extracts.
  • To evaluate LTP's role in peach allergy.

Main Methods:

  • LTP purification using column chromatography.
  • Production of polyclonal antibodies against LTP.
  • Quantification of LTP via ELISA inhibition.

Main Results:

  • Purified LTP identified at approximately 9 kDa.
  • LTP concentration in peach peel is ~7x higher than in pulp.

Related Experiment Videos

  • 83.3% of peach-allergic patients showed positive skin test to purified LTP.

    • Conclusions:

    • A reliable method for quantifying LTP in peach extracts was established.
    • Peach peel is a richer source of LTP compared to pulp.
    • Findings support LTP's significance in peach allergy.