Investigation of antioxidant and detoxifying capacities of some date cultivars (Phoenix dactylifera L.) irrigated with sewage water

Abstract

The objective of the study was to compare the effect of irrigation by municipal water (MW) and sewage water (SW) on antioxidant and detoxifying capacities of some commercial Saudi date cultivars, Agwa, Anbr and Safawi (Phoenix dactyliferaL.).

Antioxidants in Date Fruits and the Extent of the Variability of the Total Phenolic Content: Review and Analysis

“…In a study of the effect of sewage water irrigation of date palm tree in the antioxidant constituency of three Saudi date cultivars, Abdulaal et al [105] reported higher levels of TP; TF; increased antioxidant activity using ABTS, DPPH, and the formation of phosphor-molybdenum complex test; as well as higher activities of peroxidase, polyphenol oxidase, and glutathione-S-transferase in dates irrigated with sewage water as compared to irrigation with municipal water. The increased level of these parameters was accompanied with higher accumulation of heavy metals (Cr, Cu, Fe, Mn, Pb, and Zn) in the sewage water-irrigated dates.…”

Heavy metals in some date palm fruit cultivars in Saudi Arabia and their health risk assessment

“…[2] Monitoring of HMs in date palm is very crucial as it has ability to grow in diverse climatic conditions and grows easily along the roads, residential zones, rural areas, and industrial zones where they are vulnerable to pick pollutants. [3][4][5] Various elemental analytical instrumental techniques are available now-a-days to assess HMs to safeguard consumers. Among the routine analysis, neutron activation analysis, proton induced X-ray emission, electro thermal atomic absorption, proton induced X-ray emission, and inductively coupled plasma are applied because these methods give good indication of macro and micro minerals from dates.…”

“…Date palms fields are irrigated sometimes by using sewage water, which can be hypothesized to HM toxicity. [4] HMs accumulate in various parts of the food crop that leads to a variety of clinical problems in animals and human all over the world. [5,6] Humans are usually exposed to these metals through ingestion or breathing as involuntary act and when their concentration increases, above the maximum allowable levels (MALs) set by WHO/FAO, on set of various diseases is triggered as HMs are known mutagenic, teratogenic, and carcinogenic materials.…”

“…Therefore, for checking safety status of date palm, HMs should be analyzed and compared with permissible limits in order to avoid health issues. [4] The presence of lead, cadmium, and other metals have been reported in the street dust of Riyadh city and lead (Pb) concentration depends on traffic load and other industrial activities. [9,10] Aldjain et al [11] collected dates from 14 locations of Riyadh and found that dates were contaminated with significant levels of lead and cadmium; however, their values were within acceptable limit set by WHO/FAO.…”

Reorganization of Protein Tyrosine Nitration Pattern Indicates the Relative Tolerance of Brassica napus (L.) over Helianthus annuus (L.) to Combined Heavy Metal Treatment

“…Since the availability of clean freshwater is becoming increasingly limited, more and more places use wastewater for irrigation. In addition to containing valuable macro-and micronutrients, which in optimal concentration might be beneficial for plant growth and development [1], domestic wastewater might also contain a considerable amount of non-biodegradable HMs, which in excess, are able to accumulate in the food chain, potentially causing toxicity symptoms [2,3]. Among the many possible contaminants, cadmium (Cd), chromium (Cr), copper (Cu), lead (Pb), mercury (Hg), nickel (Ni), and zinc (Zn) are the most concerning toxic HMs [3], whose properties and effects on plants are discussed in the Supplementary Materials (Table S1).…”