Chemicals and nutritional properties of some edible weeds species as potential foods and future crops

Author : Mohamed Abdelaziz Balah and Ali Mohamed Hozyan

Edible weed species are of great interest in human food demand due to their contributions in the
provision of people’s daily intake or as supplemented nutrition over the world. Therefore, a survey study was
conducted to record wild edible plants in Egypt. Which, about 44 plants species were distributed into 21 genera
belonging to 14 botanical families which have domestic usages. Based on the chemical analysis of elemental
composition (Mg, Ca, Na, K, Mn, and Fe) and dietary nutritive values including ash content, fiber, fat, protein,
and total carbohydrates were ranked. Considerably interested found in Corchorus olitorius which recorded the
highest nutritive values with higher content of nutritional values and amino acids, followed by Portulaca
oleracea in the second order. Australian Weed Risk Assessment protocols revealed that Cichorium intybus,
Sonchus oleraceus and C. olitorius were achieved an accepted risk, while the other species had low risks
scoring. The analysis revealed a positive correlation between oxalate content and risk assessment of edible
weeds. Therefore, these species can be considered as a good and low-cost source for amino acids and minerals
compared with the locally consumed vegetables. Finally, this information can provide the priority species for
future domestications as promising food crops.

Keywords : Wild plants, edible weeds, risk assessments, agroecosystem, human nutrition.,

Received:1/1/0001 12:00:00 AM; Accepted: 1/1/0001 12:00:00 AM