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Article
Physicochemical and Spectroscopic Elemental Analysis of Ground Water in Thickly Populated and Industrial Area of Quetta Valley Pakistan

Authors: Abdul Baqi Achakzai --- Irshad Ali --- Naqeebullah Khan --- Samiullah Khan --- et al.
Journal: Al-Nahrain Journal of Science مجلة النهرين للعلوم ISSN: (print)26635453,(online)26635461 Year: 2019 Volume: 22 Issue: 3 Pages: 18-25
Publisher: Al-Nahrain University جامعة النهرين

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Abstract

Quetta valley the capital of Balochistan Province, has faced twice the rush of immigrants i.e; Afghan refugees after Saur Revolution and people from interior Balochistan due to drought in Balochishan from the last two decades. Additionally a number of industries at various areas has been established. This abrupt increase in the population and discharge from the industries have affected the drinking water quality in the valley. To assess these affects, nine ground water samples taken from densely populated and industrial areas were analyzed for their physicochemical (taste, order, color, temperature, conductivity, turbidity, alkalinity, pH, total hardness and total dissolved salts) and concentrations of cations (Na, K, Fe, Mn, Co, Ni, Cu, Cd and Pb) by Flame Photometer and Atomic Absorption Spectrometer. The results obtained were compared with both Pakistan National Standards (PNS) for drinking water Quality (2010) and World Health Organization (WHO), standards for drinking water. All the results were in the limits of the standards except cobalt (0.095 – 0.12 mg/L) and cadmium (0.0348 – 0.041 mg/L) which were found to be in high concentrations that are attributed to the anthropogenic activates.


Article
Determination of Antioxidants and Antimicrobial Activities of Platytaenia multicaule

Authors: Najeebullah Kakar --- Samiullah --- Naqeebullah Khan --- Attiq-ur-Rehman Kakar --- et al.
Journal: Al-Nahrain Journal of Science مجلة النهرين للعلوم ISSN: (print)26635453,(online)26635461 Year: 2019 Volume: 22 Issue: 4 Pages: 19-29
Publisher: Al-Nahrain University جامعة النهرين

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Abstract

Determination of antioxidants and antibacterial activities of an important medicinal plant like Platytaenia multicaule has been accomplished for the first time in this contest. Regarding antioxidants and antibacterial activities, the plant was analyzed chemically by means of four well known methods as well as by UV/VIS spectroscopic techniques. The crude extract was obtained from the plant by the utilization of methanol (MeOH) and the antioxidants activities of the crude extract tested. Furthermore, using spectrophotometer the antioxidants capacities were examined via 2,2-Diphenyl-1-Picrylhydrazyl (DPPH) Assay, Total Antioxidant Capacity (TAC), Ferric Reducing Antioxidant Power (FRAP) Assay and Reducing Power (RP) Assays. The capacity of DPPH Assay of P. multicaule was 190 mg/g of ascorbic acid concentration. Additionally, for the TAC and FRAP the values of extracts were 10.85 mg and 40 mg of ascorbic acid/g of P. multicaule extract respectively. In addition, the RP shows 3.29 mg/g of ascorbic acid concentration. The P. multicaule have shown the high antioxidant activity. On the other hand, the antibacterial activity of this plant was investigated by the agar well diffusion method. In this, the plant extracts were examined against two bacteria namely Escherichia coli and Staphylococcus aureus which exhibited 14 mm and 16 mm zones of inhibition respectively. Hence, this test proved that the P. multicaule contains high antibacterial agents.

Keywords

Antioxidant activity --- DPPH --- TAC --- FRAP --- RP --- Antibacterial activity --- Agar.

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