PJB-2021-744
Influence of lead, cadmium, and zinc on phenols, flavonoids and antioxidant activity in cauliflower (Brassica oleracea. var. Botyris)
Zeeshan Rehman, Sheza Ayaz Khilji, Zahoor Ahmad Sajid and Muhammad Asrar Javed
Abstract
This study was conducted to assess the impact of toxic heavy metals (lead, cadmium, and zinc) present in polluted waste-water on some phytochemical attributes (phenolic, flavoniods and antioxidant activity) in cauliflower plant. For this purpose, fresh and waste-water irrigating cauliflower samples were collected from different industrial sites of districts Narowal, Lahore and Kasur, Punjab, Pakistan. These samples were used for the estimation of Pb2+, Cd2+ and Zn2+, phenols, flavonoids and antioxidant activities, to find out their accumulation and effects on cauliflower plants. The average concentration of Zn in sewage-irrigated samples was the highest (164.53 mgkg−1), followed by Cd2+ (81.91 mgkg−1) and Pb (72.81 mgkg−1). Fresh-water Irrigated Cauliflower Samples (FICS) showed overall maximum (337.33 mgg-1) total Phenolic Contents (TPC) from Narowal followed by Kasur region. In the current study, heavy metals generally reduced the TPC in WICS compared to FICS. The maximum flavonoid contents (179.33 mgg-1) were observed in wastewater irrigated Cauliflower samples from Narowal followed by Lahore. It was observed that antioxidant activity was decreased in WICS or in heavy metal stress samples, while an increase in flavonoids was recorded in the plant that were irrigated with wastewater
To Cite this article:
Rehman, R., S.A. Khilji, Z.A. Sajid and M.A. Javed. 2023. Influence of lead, cadmium, and zinc on phenols, flavonoids and antioxidant activity in cauliflower (Brassica oleracea. var. Botyris). Pak. J. Bot., 55(3): DOI: http://dx.doi.org/10.30848/PJB2023-3(35)
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