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minerals umesh maskare bacteria classification bacteria flourine iodine iodine in food phosphorus potassium vitamins vitamin c vitamin e vitamin meat-structure meat meat- characteristics meat composition quality of fish fish iso standards : iso 9001 and iso 14001 affinity chromatography ion exchange chromatography thin layer chromatography paper chromatography column chromatography liquid chromatography gas chromatography fplc hplc chromatography fungi morphology fungi structure fungi classification fungi in food spoilage fungi general characteristics culture media classification culture media culture media for microorganisms bacteria morphology bacteria structure