Analysis of Physico-chemicals properties of new source of Antioxidant rich potatoe

Abstract

Bangladesh ranked 7thcountry in the world and 3rdcountry in Asia among all the potato producing countries. This is the third major vegetable consumed by Bangladeshis, which indicate its importance as source of nutrient and potentiality to be source of preventive therapeutic crop. Introduction of new antioxidants, polyphenols, and carotenoids rich varieties could offer the prospect to use this widely used vegetable as a source of therapeutic biomaterials for anticancer or heart disease. In Indian subcontinent, people suffer from mal-nutrition especially in rural area. Sweet potatoes are not as expensive so poor people of rural areas can afford this easily. So, it is important to know the nutritional content of potatoes and sweet potatoes.Sweet potatoes come in many different colors. The skin can be white, yellow, red, purple or brown, and the flesh can be white, yellow, orange or purple. However, in the United States, there are two main varieties of sweet potato: one has a golden skin with creamy white flesh and a crumbly texture.In Bangladesh sweet potatoes grows well because of its climate. It is easy to cultivate and less expensive. So if we grow it more and supply to the poor people then malnutrition problem could be solved.Sweet potatoes are available a range of colors, including those with white, yellow, orange or purple flesh. The purplevarieties contain the foremost antioxidants, and also the white-fleshed varieties contain the smallest amount of those helpful nutrients, in keeping with a study revealed in "Food Chemistry" in 2007. Different flesh of colored potato like yellow, purple, orange are also out there. However, the foremost common kind of sweet potato is that the one with copper-colored skin and soft orange flesh. To address these scientific challenges 14 new varieties of potatoes, including colored species, have been collected and their drying kinetics, total suspended solid content, effect of pH on their extracts have been observed. Irrespective of colors these varieties have higher amount of total suspended solids (TSS), lower drying rates and solid content compared to available varieties in Bangladesh. Concomitantly, the TSS and drying kinetics suggested that, these varieties have the prospect to be the major source of Antioxidants and water insoluble nutrients to confirm their supremacy as food compared to existing species. Physicochemical properties are important to know because Bangladesh is a developing country.