(1)研究食品的化学组成 Water Inorganic Compositions Natural Compositions Minera Carbohydrates Organic Compositions 食品中的化学成分 Lipids 食品中的基本营养素 Proteins Vitamins Hormone Flavor Compositions Toxic Substances Food Additives Natural Additives Unnatural Compositions Synthetic Additives Contaminant Processing Environmental Pollution(1) 研究食品的化学组成 食 品 中 的 化 学 成 分 Natural Compositions Unnatural Compositions Inorganic Compositions Organic Compositions Food Additives Contaminant Water Mineral Carbohydrates Lipids Proteins Vitamins Hormone Flavor Compositions Toxic Substances Natural Additives Synthetic Additives Processing Environmental Pollution 食 品 中 的 基 本 营 养 素