title: Extraction of light filth from oriental sauces containing soy sauce, thickeners, and spices: collaborative study.
abstract: Results are reported for a collaborative study of a method for the extraction of light filth from oriental sauces containing soy sauce, thickeners, and spices. A 100 g test portion is pretreated in a 2% solution of Tergitol Anionic 4 over a steam bath, and oils are removed by wet-sieving on No. 230 sieve. Filth is isolated from 40% isopropanol by using Na4EDTA and mineral oil. Average recoveries by 9 collaborators for 3 spike levels of rat hairs (5, 10, and 15) were 84, 78, and 79%, respectively; for insect fragments (5, 15, and 30), recoveries were 92, 95, and 96%, respectively. The method was adopted first action by AOAC International.
authors.affiliation: U.S. Food and Drug Administration, Division of Microbiology, Washington, DC 20204.
authors.forename: M J
authors.initials: MJ
authors.lastname: Nakashima
mesh_terms: D000433:1-Propanol; D003212:Condiments; D004492:Edetic Acid; D005503:Food Additives; D005504:Food Analysis / Q000379:methods; D005506:Food Contamination; D008899:Mineral Oil; D017365:Spices
chemical_list: D005503:Food Additives; D008899:Mineral Oil; D000433:1-Propanol; D004492:Edetic Acid