Faith,
What you are saying is quite correct. It's that simple phrase, "are hydrolyzed... another word for msg", that I have a problem with. That's taking way too much liberty with syntax. No matter how you cut it, any form of the word "hydrolyzed", is not interchangeable with the words "monosodium glutamate". While it's true that some processes involving hydrolysis result in a "natural" form of MSG, that is certainly not true for all instances of hydrolyzation. For example, the hydrolysis of sucrose, yields glucose and fructose - no MSG.
I'm not saying that the gist of the concept that she is attempting to describe is wrong, I'm just saying that it's inappropriate, (and inaccurate), for her to claim that the word "hydrolysis", has the same meaning as the term used to identify the compound known as MSG - they do not have the same meaning, and are therefore not interchangeable.
Please don't apologize - what you are saying is quite correct. I totally agree with what you have said. It's your reference's implying that all processes that involve hydrolysis, result in the formation of MSG, that I disagree with. Her making such a claim, serves no purpose, except to confuse the issue, and it's very misleading.
FWIW, I couldn't tolerate any of the things you named either, (corn starch, citric acid, etc.), when I was still healing, but now that I have been in remission for a few years, none of them bother me, including MSG, (whether natural or synthetic).
Please don't allow my ramblings, to affect your writing about your research and your thoughts. I truly enjoy reading your posts, and I learn a lot from them, It's just that I have a problem with some authors misusing language, (and/or science), to make their point, (and I'm not talking about what you wrote - I'm talking about what your reference wrote). That doesn't mean that I disagree with their point - I just have a problem with their methods. Consider it a little idiosyncrasy of mine.
Tex