However, [heat] does not 'destroy' the protein, it simply causes it to unfold. The amino acids remain intact and are still available.. I think the confusion of where heat can cause a problem is with enzymes.
TOEFL stands for Test Of English as a Foreign Language (Educational Testing Service) Suggest new definition. This definition appears very frequently and is found in the following Acronym Finder categories: Organizations, NGOs, schools, universities, etc.
1 TESL (Teaching English as a Second Language) - Commonly used abbreviation referring to teachers of ESL or ESOL classes.  TEFL (Teaching English as a Foreign Language) - Used when referring to teachers of English working in countries where it is not the primary language.