This test method is a procedure used to determine Acid Detergent Fiber (ADF) content in forages, animal feeds, and fibrous materials. ADF represents the portion of plant material composed mainly of cellulose, lignin, and silica, which are less digestible components affecting the nutritional quality of the feed. The feed or forage sample is dried, ground,… Continue reading ADF
This test method is a widely used technique to accurately quantify these sulfur-containing amino acids in food, feed, and biological samples. Because cysteine and methionine are sensitive to oxidation and do not naturally absorb UV light strongly, they require chemical modification (derivatization) prior to chromatographic analysis. Samples are first oxidized to stabilize these amino acids,… Continue reading Amino Acids [Cysteine/Methionine] Pre-col AQC Der