I am looking for ideas/thoughts on the following problem:

I am working with food ingredient data such as: *milk, sugar, eggs, flour, may contain nuts*

From such piece of text I want to be able to identify and extract phrases like *may contain nuts*, to preprocess them separately

These kinds of phrases can change quite a lot in terms of length and content. I thought of using NER taggers, but I don't know if they will do the job correctly as they are mainly used for identifying single-word entities...

Any ideas on what to use as a phrase-entity-recognition system? Also which package would you use? Cheers