Originally, many of the sample types analyzed in the lab were mollusks, but now include bird eggshells, algal remains, synthetic amino acids, and more ... and d13C as a paleovegetation proxy we aim ...

He analyzed them and the results were electrifying: Organic compounds had been formed, most notably some of the "building blocks of life," amino acids. Amino acids are necessary to form proteins ...

It tests an organism's ability to ferment the sugar glucose as ... Bacteria that have the enzyme tryptophanase, can convert the amino acid, tryptophane to indole. Indole reacts with added Kovac’s ...

In a new study of people with long-term vegan diets, most ate an adequate amount of total daily protein, but a significant proportion did not meet required levels of the amino acids lysine and leucine ...