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Optimization of carotenoids extraction from Penaeus semisulcatus shrimp wastes

Journal of Coastal Life Medicine 2013年第2期 95-97页

作者： Gholamreza jahed Khaniki Parisa Sadighara ramin nabizadeh Nodehi Mahmood Alimohammadi Naiema Vakili Saatloo Department of Environmental Health Food Safety DivisionFaculty of Public HealthTehran University of Medical SciencesTehranIran School of Public Health Tehran University of Medical SciencesTehranIran

Objective:To find effective method for carotenoids extraction from shrimp waste which is one of the important sources of natural carotenoids and produced in large quantities in ***:Two methods of carotenoids extraction,enzymatic and alkaline(NaOH 1 normal)treatment,were *** 5 g of gritted shrimp wastes were used at each *** alkaline treatment,sodium hydroxide were added to shrimp *** 48 h,the mixture was filtered and ***:Alcalase extraction produced(234.00±2.00)mg/L carotenoid and NaOH extraction produced(170.00±1.53)mg/L *** on the samples analyzed,alcalase enzyme showed more efficiency than NaOH extraction to achieve carotenoids from shrimp ***:It can be concluded that using alcalase enzyme for carotenoids extraction can produce higher carotenoids concentration than NaOH extraction *** alcalase enzyme method can be used for achieving this kind of antioxidant.

关键词： Shrimp waste Carotenoids Alkaline Alcalase

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Microbiological Quality of Drinking Water and Prevalence of Waterborne Diseases in the Gaza Strip, Palestine: A Narrative Review

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Journal of Geoscience and Environment Protection 2019年第4期7卷 122-138页

作者： Samer Abuzerr Simin Nasseri Masud Yunesian Samir Yassin Mahdi Hadi Amir Hossein Mahvi ramin nabizadeh Mohamed Al Agha Amal Sarsour Maher Darwish Department of Environmental Health Engineering School of Public Health International Campus Tehran University of Medical Sciences Tehran Iran Department of Environmental Health Engineering School of Public Health Tehran University of Medical Sciences Tehran Iran Center for Water Quality Research (CWQR) Institute for Environmental Research (IER) Tehran University of Medical Sciences Tehran Iran Department of Research Methodology and Data Analysis Institute for Environmental Research TUMS Tehran Iran Department of Physics Faculty of Sciences Islamic University of Gaza Gaza Palestine Department of Environment and Earth Science Department The Islamic University of Gaza Gaza Palestine Earth and Human Center for Researches and Studies Gaza Strip Palestine Department of Pharmacy Al-Safwa University College Al-Safwa Iraq

Water quality and occurrence of water-borne diseases in the Gaza strip are vivid examples for most developing societies. In recent years, the quality and quantity of groundwater, the only source of waters in the Gaza strip, have deteriorated markedly. A general rundown of the infrastructure and water distribution networks, in particular, the spread of cesspools, excessive use of pesticides and fertilizers, and improper treatment and disposal of wastewater remain major contributing factors to the continued deterioration in the water status in the Gaza strip. Without a doubt, the (Israeli)-Palestinian conflict had a clear negative impact on the water sector in the Gaza strip. Apparently, there is a dire need to adopt the WHO’s water safety plan in the management of Gaza’s water supply systems from catchment to consumer’s tap in order to maintain the sustainability and quality of water resources and prevent outbreaks of waterborne diseases. Therefore, this review has been prepared to highlight the overall picture of the water dilemma in the Gaza strip in the last years and in addition, to identify the sources, sorts, levels, and health risks of consequence to microbial contamination of water. The impact of political conflicts on the water sector in the Gaza strip also was reviewed. Furthermore, recommendations were formulated in order to assist and guide future researchers, stakeholders, and policymakers to avoid the more exacerbation of water contamination as well as to protect public health.

关键词： Fecal Coliforms Gaza Strip Microbiological Water Contamination Public Health Total Coliforms Waterborne Diseases

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