The present study is aimed to screen the selected grasses of South India for qualitative and quantitative mineral content. The results revealed that the grass species accumulate the major and minor elements at various concentrations. The concentration of macroelements were found to be 9503, 51360, 4650 and 3473 (ppm) of Ca, K, Mg and P respectively; and microelements were 40, 219, 2698, 261, 68 and 108 for B, Cu, Fe, Mn, Mo and Zn (ppm) respectively. 17% of ash content and 3826 cal/g of calorific value were found as the selected species. The levels of macro and micro elements of the grasses were determined by using ICP –OES. Elemental analysis studies of the grass species revealed that large amounts of major and minor elements were found rich in Fimbristylis cymosa and Scleria lithosperma, which may be suggested for livestock feeding.
Vitamin C is an antioxidant and free radical scavenger for human body. Consumption of Vita C as a nutrient in diet is recommended. Thermal process, environmental factors and pH can cause a negative impact on vitamin content in multivitamin formulation and juices due to physical and chemical instability. Vita C content varies with the age of lemon fruit from unripe to stale. The present paper aims towards content variability and stability studies under various storage conditions like temperature air and pH. Classical methodology like Iodatometric titration is an easy way to trace out the vitamin content in any source using potassium iodate with starch as external indicator. Fresh ripened lemon juice contained 36.5 mg/100ml Vita C, whereas unripened contains 74.6 mg/100ml. Thermal shock of higher degree can decrease the content but for preservation lower temperature was found less deteriorative and deleterious. Percent loss of vitamin were found higher, 56.52 at 80°C and 39.12, 34.8 and 26.3 at 60°C, 40°C and room temperature respectively. Lower temperature shows good retention of vitamin content in the juice so as the percent loss were found 21.9, 13.01 and 8.68 at 12°C , 0°C and -12°C respectively. Air treatments and pH attacks were found harmful for Vita C storage. Storage of it in open bottle in environment the amount was decrease up to with time of min. manipulation of ph using acids and bases also found to decrease the content.