| Autor: |
ANIMASAUN, David A., AKANDE, Tolu I., OYEDEJI, Stephen, AZEEZ, Musibau A. |
| Předmět: |
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| Zdroj: |
Biharean Biologist; Jun2021, Vol. 15 Issue 1, p59-63, 5p |
| Abstrakt: |
Increase in food and vegetable demand due to growing world population may be linked to health risks from contaminated foods. Basella species are vegetables that grow luxuriantly in locations exposed to domestic wastewater, but there is scanty information on the effect of wastewater-irrigation on their growth and safety. This study assessed the effect of domestic effluent irrigation on growth, nutritional quality and heavy metal accumulation in Basella. Basella alba L. and B. rubra Roxb were irrigated with tap water or domestic effluent wastewater for a period of 12 weeks. Growth parameters data were collected every two weeks to determine the effects of wastewater irrigation on the growth of the vegetables. At 12 weeks, proximate analysis was conducted to determine the nutritional quality of the vegetables and the amount of heavy metals accumulated in the plant tissues were determined by Atomic Absorbance Spectrometry. The data were subjected to analysis of variance and the mean separated. Domestic effluent wastewater adversely affected the growth and yield of the Basella species. There was no difference in nutritional quality between species and type of irrigation sources, however, heavy metal accumulating was higher in plants irrigated with domestic effluent. Zinc, lead, copper, iron and cadmium accumulated in Basella spp. were within the standard permissible levels. Although growth varied between tap and bathroom effluent irrigated plants, there were no significant differences in nutritional content and quality. Heavy metals accumulating in bathroom effluent irrigated plant was within permissible limits which suggest the vegetables were safe for consumption and posed no health risk. [ABSTRACT FROM AUTHOR] |
| Databáze: |
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