title: Rapid determination of tryptophan in beans (Phaseolus vulgaris) by the acid ninhydrin method.
mesh_terms: D000418:Albumins / Q000032:analysis; D005916:Globulins / Q000032:analysis; D009555:Ninhydrin; D010940:Plant Proteins / Q000032:analysis; D012639:Seeds / Q000032:analysis; D013045:Species Specificity; D014908:Triticum / Q000032:analysis; D014364:Tryptophan / Q000032:analysis*; D014675:Vegetables / Q000032:analysis*; D003313:Zea mays / Q000032:analysis
chemical_list: D000418:Albumins; D005916:Globulins; D010940:Plant Proteins; D014364:Tryptophan; D009555:Ninhydrin