Fruits and Vegetables
Chemical composition of fruits and vegetables is highly dependent on photosynthesis and absorption of water and minerals during the period of growth and maturation on the parent plant. However, following harvest, the sources of nutrients and water that supplied the growing entities are no longer available and they become independent units in which respiratory processes now play a proportionately major role, with the uptake of oxygen and loss of carbon dioxide and water. Deterioration accompanies the use of the reserves of reparable materials (mainly carbohydrates) accumulated during photosynthesis that are no longer replenished. Therefore, chemical constituents of fresh fruits and vegetables are decided by these growth, maturation and respiration processes.
- Dellamonica, E. S., & McDowell, P. E. (1965). Comparison of beta-carotene content of dried carrots prepared from three dehydrated processes. Food Technology, 19, 1597–1599.Google Scholar
- Harris, R. S., & Karmas, E. (1975). Nutritional evaluation of food processing (2nd ed.). Westport, CT: AVI Publishing Co..Google Scholar
- Harris, R. S., & von Loesecke, H. (1960). Nutritional Evaluation of Food Processing. Wiley, New YorkGoogle Scholar
- Joshipura, K. J., Hu, F. B., Manson, J. E., et al. (2001). The effect of fruit and vegetable intake on risk for coronary heart disease. Annals of Internal Medicine, 134, 1106–1114.Google Scholar
- Kader, A. A. (2002). Postharvest technology of horticultural crops (3rd ed.). Oakland: University of California. Publication 3311.Google Scholar
- Lee, C. Y., Shallenberger, R. S., & Vittum, M. T. (1970). Free sugars in fruits and vegetables. New York’s Food and Life Sciences Bulletin, 1, 1–12.Google Scholar
- Preston, R. D. (1974). The physical biology of plant cell walls. London: Chapman and Hall.Google Scholar
- Von Elbe, J. H., & Schwartz, S. (1996). Colorants. In Fennema, O.R. Marcel, 3rd Eds.Dekker, Food Chemistry, Inc. New York.Google Scholar
- USDA. (2006). USDA database for the flavonoid content of selected foods (Release 2). Beltsville, MD: USDA Beltsville Human Nutrition Research Center.Google Scholar
- USDA. Agricultural Research Service. (2011). National nutrient database for standard reference 26. Retrieved from www.ars.usda.gov/services/docs.htm?docid=22114.
- Willcox, J. K., Ash, S. L., & Catignani, G. L. (2004). Antioxidants and prevention of chronic disease. Critical Reviews in Food Science and Nutrition, 44, 275–295.Google Scholar
- Wills, R. B. H., McGlasson, W. B., Graham, D., Lee, T. H., & Hall, E. G. (1989). Postharvest: An introduction to the physiology and handling of fruit and vegetables. New York: Van Nostrand Reinhold.Google Scholar