| Popis: |
Humans living in the 20th century not only are exposed to the natural chemicals that are basic components of the foods they eat, but to a wide variety of synthetic chemicals that find their way into foods, water supplies, and the atmosphere. Included are residues from fertilizers and pesticides and antibiotic residues in foods as well as pollutants from automobiles and industries. Additional chemical additives are incorporated into processed foods to serve such functions as nutrient enrichment; improvement of color, texture, and flavor; as well as enhancement of shelf life. |
