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Articles by Umer Rashid
Total Records ( 3 ) for Umer Rashid
  Maida Aslam , Farooq Anwar , Raziya Nadeem , Umer Rashid , T.G. Kazi and M. Nadeem
  This study presents the mineral composition of leaves and pods of Moringa oleifera from different agro climatic regions of Punjab. Samples of leaves and pods were wet digested and analyzed for various minerals by using Atomic Absorption Spectrophotometer (AAS) and flame photometer. The contents K, Ca, Mg, Na in the leaves and pods of Moringa oleifera was found to be 19732-24397, 1839-2097; 18950-26349, 1292-1837; 98.2-109, 93.9-103.9 and 1635-2721, 1032-2105 mg kg-1 respectively. The concentration of Fe, Cu, Mn and Zn was found to be 205-573, 155.2-435.9; 7.3-11.2, 20.9-32.1; 76.9-112.8, 40.2-72 and 20.9-34.1, 15.3-29 mg kg-1 respectively. The level of P in the samples of leaves and pods was 1180-1450 and 1860-2125 mg kg-1 respectively. The contents of different minerals in the leaves and pods of M. oleifera were significantly varied from region to region. The results of present analysis revealed that pods and leaves of M. oleifera indigenous to different agro-climatic regions of Punjab contained a considerably high amount of Ca, Mg, K, Mn, P, Zn, Na, Cu and Fe and might be used as a viable supplement of dietary minerals.
  Najum Rasheed Ahmad , Muhammad Asif Hanif and Umer Rashid
  Variation in the oil yield and composition of essential oils from fifteen differently Eucalyptus crebra (E. crebra) trees adopted of Faisalabad was presented. Hydro-distilled leaves of Eucalyptus crebra ranged 0.29-1.33 % of essential oil. Extracted oils were resolved and identified by GC/FID (Gas chromatography) on Carbowex-20 M packed glass column. Maximum components (33) were detected in the oil of two different trees (i.e. tree No. 6 and 10). A total of 33 components were detected, out of which 6 amounting to approximately 60% of the oil were identified. In Eucalyptus crebra oils six components (α-pinene, β-pinene, Δ3 carene, α-phallendrine, Limonene and 1, 8-cineole), were positively identified. The principal constituent 1, 8-cineole, found in the fifteen oils of different trees, was ranged (11.87-43.80%). The other major components were ranged: β-pinene (0.20-12.13%), α-pinene (1.68-18.23%), Δ3 carene (1.32-5.63%) and α-phallendrine (0.55-7.98%). Only in the oil of one tree limonene (2.37%) was found. Chemical composition of oils from tree to tree varied significantly which may be due to the differences in their genetic make up (e.g., age, height) and may also be the effect of salinity. Eucalyptus crebra trees oil shown 1, 8-cinole percentage more than 70%, for that reason oils of Eucalyptus crebra trees under study were found suitable for medicinal purposes.
  Muhammad Asif Hanif , Raziya Nadeem , Umer Rashid and Muhammad Nadeem Zafar
  In present study, assessment of the effluents from seven industries including ghee, Ni-Cr plating, battery, tannery: Lower Heat Unit (LHU), tannery: Higher Heat Unit (HHU), textile: Dying Unit (DU) and textile: Finishing Unit (FU) in city zone of Faisalabad, Pakistan showed that some of them were high in some water pollutants while some were high in other types of water pollutants. Environmental pollutants quantitatively analyzed include nickel, zinc, copper, iron, temperature, pH, conductivity, hardness, turbidity, salinity, sulfate, total acidity as CaCO3, total alkalinity as CaCO3, chloride, fluoride, Total Dissolved Solids (TDS), nitrate, nitrite, Dissolved Oxygen (DO), Biological Oxygen Demand (BOD), Chemical Oxygen Demand (COD), phosphorous, sodium, potassium, calcium and magnesium. The results of present study revealed that effluents from all industries causing severe toxic metal pollution. While analysis of physico-chemical parameters showed that although all industries causing some type of physico-chemical pollution but textile industry (FU) effluents were above permissible limits in most of physico-chemical parameters analyzed. These wastewaters are normally discharged into neighboring water bodies. The treatment of any form of waste before disposal into the environment is important and ensures safety of the populace and assessment of pollution caused by effluents is therefore necessary for appropriate selection of treatment plan.
 
 
 
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