Macro and micro nutrients in Holy basil (Tulsi): A possible supplement for natural medicine
Md. Abdul Mannan, Nasiruddin, Md Saddam Hossain, Nurun Nahar Nipa, Amina Khatun, Md Ruhul Amin, Mukul Kumar Sarkar, Md Kudrat-E-Zahan
This study has been performed to analyze macro and micro-nutrients in different parts such as leaves and stem of Tulsi plant collected from Rajshahi University Campus and one the villages of Natore District, Bangladesh. The heavy metal content in the corresponding soil samples has also been checked in order to clarify the possible accumulation of trace metals to the plant. It was seen from the results that a plenty of the macro-nutrient Ca was present (89.6 to 431.55 ppm) in both leaf and stem of the Tulsi. Similarly, the content of micro-nutrient Fe was also significant (3.34 to 49.53 ppm). Content of the other nutrients such as Zn, Mn, Ni and Cu was found to be within the permissible level suggested by the World Health Organization (WHO) and significant difference observed in the quantity of the trace metal contents from one place to another. Harmful metals content such as Pb, Cd and as was analyzed and was found to be within the permissible limit. Finally, the leaf and stem of the Tulsi is being recommended to be a great source of Ca, Fe deficient patients of the rural as well as the urban people.