Horticultural produce are stored at lower temperature because of their highly perishable nature. There are many methods to cool the environment. Hence, preserving these types of foods in their fresh form demands that the chemical, bio-chemical and physiological changes are restricted to a minimum by close control of space temperature and humidity. The high cost involved in developing cold storage or controlled atmosphere storage is a pressing problem in several developing countries. Evaporative cooling is a well-known system to be an efficient and economical means for reducing the temperature and increasing the relative humidity in an enclosure and this effect has been extensively tried for increasing the shelf life of horticultural produce in some tropical and subtropical countries. In this review paper, basic concept and principle, methods of evaporative cooling and their application for the preservation of fruits and vegetables and economy are also reported. Thus, the evaporative cooler has prospect for use for short term preservation of vegetables and fruits soon after harvest. Zero energy cooling system could be used effectively for short-duration storage of fruits and vegetables even in hilly region. It not only reduces the storage temperature but also increases the relative humidity of the storage which is essential for maintaining the freshness of the commodities.
<p>The flax seeds are very important in regular diet for humans especially for females. They increase nutrient absorption, help in weight loss, gluten free, rich in antioxidants and omega 3 fatty acids. Owing to these health benefits, dietitians and doctors advise to take flax seeds every day. However, most people especially youngsters may not show interest to take raw flax seeds. Chutney powder made with flax seeds is a best alternative way of consumption highly palatable and nutritious to incorporate in regular diet. Chutney powder of different formulations is made with flax seed, peanuts or black gram, red chilies and spices. Sensory analysis was conducted among the trained and untrained panelists on various sensory attributes and proximate analysis was carried out to assess the nutritional value of bestaccepted chutney powder. From the sensory analysis, it could be concluded that most of the consumers liked the flax seed-groundnut chutney powder made with 20% groundnut and 15% black gram. The chutney powder has good considerable amounts of protein content from 19 to 21%. The study mainly intended to make a healthy palatable product with flax seed, which can be consumed by all groups of people and easy to consume than raw flax seed. The value added flax seed product can be incorporated in daily diet. The product is thus important for changing lifestyle and for consumers heading towards a healthy lifestyle.</p>
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