Final answer:
The sentence is related to chemistry, as it mentions amino acids, sulfur, butterfat, and alkaline.
Step-by-step explanation:
Based on the sentence provided, the sentence is related to chemistry. Chemistry is the branch of science that deals with the composition, structure, properties, and reactions of matter. In this case, the mention of amino acids, sulfur, butterfat, and alkaline indicates a discussion about chemical compounds and their combinations.