irrigated agriculture is an important contributor to the expansion of national food supplies and is expected to play a major role in food security of developing countries. such countries face water crisis for securing the food staples. well designed water resource policies potentially can improve the water allocation and use efficiency as well as the food security objectives. this paper present...

Seven-day tests with Ceriodaphnia dubia are commonly used to estimate toxicity of effluents or receiving waters but can sometimes yield no toxicity outcomes even if pollutants are present. We conducted two sets of full life-cycle tests with C. dubia to (1) determine whether tests with longer exposure periods to low concentrations of contaminants in ambient water might reveal evidence of toxicit...

Water is one of the most natural resources for all the living organisms, weather unicellular or multi cellular, since it is required for various domestic purposes irrigation, power generation and industries. In a freshwater system, the zooplankton forms are important group and constitute basic link of the food chain. Planktons are very sensitive to the environment they live in and any alteratio...

background: environmental problems of the plastic materials used in food packaging and the demand for food quality improvements lead to the development of packaging in natural materials. edible films such as calcium alginate extend the shelf life by acting as a selective barrier against moisture and oxygen. the main objective of this study was to explore a calcium alginate based edible film to ...

background: contamination of water by toxic chemicals has become commonly recognized as an environmental concern. based on our clinical observation in mashhad, northeastern iran, many people might be at risk of exposure to high concentrations of toxic heavy metals in water. because wastewater effluents as well as water wells have been commonly used for irrigation over the past decades, there ha...

arsenic in ground water is a very serious environmental hazard of bangladesh and west bengal of india. the presence of high level of arsenic (

1. Concept of food security 1.1. Food supply 1.2.Malnutrition 1.2.1. Under-nourishment 1.2.2. Over-nourishment 1.2.3. Micronutrient deficiencies 2. Our most important nutrients 2.1. Carbohydrates 2.2. Proteins 2.2.1. Cereal proteins 2.2.2. Pulses – a key source of protein 2.3. Fats 2.4. Micronutrients 3. Food quality and safety 4. Home-gardens for household food security 4.1. Main functions and...