is there any definitive information on the risks of soy based inks?
I'm a food packaging manufacturer, and I'm updating my HACCP plan in preparation for my first SQF audit. My ink is not soy based, but my supplier does manufacture soy based ink and I'm trying to better understand the risks of cross contamination.
I know soy is a major allergen, but haven't seen any reliable info stating that soy ink is a risk. I did however find some info stating that is not a risk, but don't want to base my position on a few random sources I found on the web.
In this article it states:
"For those of you with soy allergies who are concerned about handling soy-based inks, you should be glad to know that the manufacturing process strips the soy proteins from the final product. This means that soybean inks are entirely safe and have shown no risk of causing allergic reactions or anaphylaxis."
but no links to a reliable source.
I did find the attached paper posted here on University of Nebraska–Lincoln site:
EXPERT OPINION STATEMENT, FOOD ALLERGY RESEARCH & RESOURCE PROGRAM, UNIVERSITY OF NEBRASKA
Soy Ink October 24, 2013, Prepared by: Steve L. Taylor, Ph.D., Co-Director and, Joe L. Baumert, Ph.D., Co-Director
In our expert opinion, soy ink is not hazardous to soy-allergic consumers. The allergens in soybeans have been identified as naturally occurring proteins present in soybeans. However, soy ink is made from highly refined soybean oil that is obtained from soybeans by hot solvent extraction, bleaching, and deodorizing (so-called RBD or refined, bleached and deodorized soybean oil). Highly refined soybean oil contains negligible levels of residual protein far below any level that can elicit allergic reactions in sensitive individuals in our expert opinion.
Would this paper quality as a reliable source? Can I use this to justify low/no allergen risk?