sentence: Many alkaloids can be  from basic substances by acid-base extraction.
sentences_before: Alkaloids' are chemical compounds that can be made naturally. They contain basic nitrogen atoms. The name comes from the word alkaline and was used to describe any alkaline containing nitrogen.
sentences_after: Many alkaloids are toxic to other organisms. Some alkaloids have a bitter taste.
concept_name: alkaloid
headings: Alkaloid
categories: Chemical compounds