Nutritional quality and safety aspects of wild vegetables consume in Bangladesh
Authors: Miah Mohammed Abdus Satter, Mohammed Murtaza Reza Linkon Khan, Syeda Absha Jabin, Nusrat Abedin, Mohammed Faridul Islam, Badhan Shaha
Number of views: 314
Objective: To evaluate the nutritional composition, including major minerals, essential
trace elements and toxic heavy metals of five different wild vegetables Dhekishak
(Dryopteris filix-mas), Helencha (Enhydra fluctuans), Kalmishak (Ipomoea aquatica),
Patshak (Corchorus capsularis) and Shapla stem (Nymphaea stellata) and their safety
Methods: Proximate parameters moisture, ash, fat, fiber, protein, carbohydrate and energy; major minerals Na, K, Ca and Mg; trace elements Fe, Zn and Cu; and toxic heavy
metals Pb, Cd, Cr, Ni and Hg were evaluated in the selected wild vegetables using the
standard food analysis techniques.
Results: The results from nutritional analysis showed that all the wild vegetables used in
this study had a low content of crude fat and high content of moisture, ash, crude protein,
crude fiber, carbohydrate and energy having the recommended dietary allowances. The
vegetables were also rich in major minerals Na, K, Ca and Mg, sufficient in essential trace
elements Fe, Cu and Zn while the heavy metals Pb, Cr and Ni were detected higher in
amount in all the vegetables except Patshak than the limits recommended by Food and
Agriculture Organization/World Health Organization. The heavy metals Cd and Hg were
not detected in any vegetable.
Conclusions: The outcome of this study suggests that the wild vegetables have very
good nutritional potential to meet the recommended dietary allowances, but special
awareness should be taken for public health concern about the high level of Pb, Cr and Ni
which exceed the Food and Agriculture Organization/World Health Organization recommended limits for the metals in vegetables.