Determination of Mineral Content and Estimation of Total Flavonoid Content of Brassica oleracea L.var. italica plenck.

Abstract

In this research work, the Brassica oleracea L.var. italica plenck., Myanmar name Pan Gaw Bi Sein, Broccoli, which is one of the most commonly consumed vegetables by the Myanmar population was selected to qualify and quantify the flavonoids present in it. The fresh broccoli was purchased from the local market, Chan Mya Thar Si Township, Mandalay Region, Myanmar. Firstly, the mineral contents of selected sample were measured by EDXRF method. Moreover, the fresh broccolis were crushed to obtain the expressed juice with 95% EtOH which is the liquid product. This extract was checked for qualitative test of flavonoids. In addition, total flavonoid content of B. oleracea L.var. italica plenck. was evaluated by the aluminum chloride (AlCl₃) method using UV spectrophotometer (UV- 1800, SHIMADZU, UV spectrophotometer) at 415 nm. The total flavonoid content of this selected sample was determined as 10.17± 0.16  mg quercetin equivalent (QE) per 100 g  fresh weight.