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Ecosystems and Human Health - Chapter 8

Phụ gia thực phẩm, dư lượng thuốc và các chất độc thực phẩm khác Thực phẩm đó để anh ta bây giờ là ngon như châu chấu được cho anh ta một thời gian ngắn như cay đắng như coloquintida. "- W. Shakespeare Phụ gia thực phẩm Thực phẩm và thuốc quy định Tất cả các nước phát triển có các quy định về các thành phần và chất phụ gia một cách hợp pháp có thể có mặt trong thực phẩm. Bản chất của các quy định có thể thay đổi từ nước này sang nước khác, nhưng những người của Canada là. | chapter eight Food additives drug residues and other food toxicants The food that to him now is as luscious as locusts shall be to him shortly as bitter as coloquintida. W. Shakespeare Food additives Food and drug regulations All developed countries have regulations governing the ingredients and additives that can legally be present in foodstuffs. The nature of the regulations may vary from country to country but those of Canada are fairly typical. In Canada regulations governing foodstuffs and food additives are part of the Food and Drug Act and are enforced by the Health Protection Branch of Health Canada. The following are some important definitions Food Any substance whether cooked processed or raw that is intended for human consumption including drinks chewing gum and any substance used in the preparation of a food but not including cosmetics tobacco or any substance used as a drug. This definition includes food additives. Food Additives Any substance including any source of radiation the use of which results in or may reasonably be expected to result in it or its by-products becoming a part of or affecting the characteristics of a food. This definition does NOT include Any nutritive material that is commonly recognized or sold as a food Vitamins minerals and amino acids 2001 CRC Press LLC Spices seasonings natural flavorings essential oils oleoresins and natural extracts Accidental contaminants such as pesticides or drugs administered to farm livestock Food packaging materials or components thereof The regulations lay out which food additives are permitted in what foods they can be used and what the maximum allowable amounts are. A food additive must do at least one of the following 1. Improve nutritive value 2. Extend shelf life 3. Prevent spoilage during shipment 4. Enhance appearance or palatability or 5. Assist in the preparation of the food or in the maintenance of its physical form. It has been estimated that about 1 billion pounds of food additives are