CHAPTER II- THEORITICAL AND CONCEPTUAL FRAMEWORKS REVIEW OF RELATED LITERATURE STUDUIES
This Chapter presents the relevant literature and studies in local and foreign settings which were essential in the development of the research model study from where the hypothesis
A. Related Literature
a. Historical Background of the study
The center of origin and domestication of Kamote tops is thought to be either in Central America or South America. In Central America, Kamote tops were domesticated at least 5,000 years ago. Sweet potatoes are native to Central America and are one of the oldest vegetables known to man. They have been consumed since prehistoric times as evidenced by sweet potato relics dating back 10,000 years that have been discovered in Peruvian caves. Christopher Columbus brought sweet potatoes to Europe after his first voyage to the New World in 1492. By the 16th century, they were brought to the Philippines by Spanish explorers and to Africa, India, Indonesia and southern Asia by the Portuguese. Around this same time, sweet potatoes began to be cultivated in the southern United States, where they still remain a staple food in the traditional cuisine. In the mid-20th century, the orange-fleshed sweet potato was introduced to the United States and given the name "yam" to distinguish it from other sweet potatoes. Sweet potatoes are a featured food in many Asian and Latin American cultures. Today, the main commercial producers of sweet potatoes include China, Indonesia, Vietnam, Japan, India and Uganda.
b. Importance of the study
A Kamote top is a dicotyledonous plant that belongs to the family Convolvulaceae. Its large, starchy, sweet-tasting, tuberous roots are a root vegetable. The young leaves and shoots are sometimes eaten as greens.
c. Different definitions of the study
Camote tops (Ipomoea batatas Linn). The leaves are a good source of vitamins A, B, C, protein, dietary fiber, lipid, and essential minerals and nutrients such as...
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