Scientists in Singapore have found a way to purify the protein of cotton flour obtained after the extraction of cottonseed oil from gossypol, an inhibitor of a number of dehydrogenase enzymes.
Analysis of the amino acid composition of cotton flour protein showed a high content of BCAAs (branched chain amino acids). The allergenicity of the isolate showed low values.
Source: MDPI
Interestingly, gossypol has antiviral, antimicrobial, antiprotozoal, antioxidant properties, and antitumor activity. However, its use can lead to irreversible infertility.