Publication Cover
High Pressure Research
An International Journal
Volume 19, 2000 - Issue 1-6
28
Views
5
CrossRef citations to date
0
Altmetric
Original Articles

Advances in the combined application of enzymatic and physical treatments for reducing food allergenicity

, , , &
Pages 175-181 | Received 09 Sep 1999, Accepted 06 Jan 2000, Published online: 19 Aug 2006
 

Abstract

Enzymatic hydrolysis of allergenic food proteins (betalactoglobulin, ovalbumin) was carried out during treatment at different combinations of time, pressure and temperature, with the aim of hydrolyzing the protein conformers transiently formed in the course of physical treatment in conditions where no irreversible modification of the target protein occurs. The amount of residual intact betalactoglobulin after 10min at 600 MPa in the presence of trypsin or chymotrypsin was found to decrease markedly with increasing temperature (30–44°C). The temperature sensitivity of the enzymatic hydrolysis of ovalbumin during similar treatments was much less pronounced than that of betalactoglobulin. The effects of temperature on the accessibility of betalactoglobulin conformers to proteases were studied at higher temperatures (55-65°C), and indicated that complete hydrolysis of betalactoglobulin cannot be achieved in a short time in the absence of a pressure treatment. None of the hydrolysis products of either protein was immunoreactive in Western-blot immunoassays.

Reprints and Corporate Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

To request a reprint or corporate permissions for this article, please click on the relevant link below:

Academic Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

Obtain permissions instantly via Rightslink by clicking on the button below:

If you are unable to obtain permissions via Rightslink, please complete and submit this Permissions form. For more information, please visit our Permissions help page.