Biodegradable textile fibers with inherent color and properties

A method for generating a biotextile material comprising:

• (a) obtaining a biopolymer composition comprising (i) a purified, recombinantly expressed protein, the recombinantly expressed protein having been expressed from a DNA coding sequence of a source protein selected from the group consisting of a fluorescent protein, elastin, or pelovaterin, and (ii) at least one of a gelatin, cellulose, or polysaccharide;
• (b) exposing the composition to a transglutaminase curing bath maintained at a temperature of 25° C. or lower to enzymatically crosslink the recombinantly expressed protein to at least another unit of the recombinantly expressed protein or the gelatin, cellulose, or polysaccharide of the biopolymer composition;
• and
• (c) generating a biotextile material based on the crosslinked composition, the biotextile material exhibiting a functional characteristic associated with the recombinantly expressed protein.