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Physico chemical changes:- The most important changes during parboiling is the gelatinization of starch and disintegration of protein bodies in the endosperm. The starch and protein expand and fill the internal air spaces. The fissures and cracks present in the endosperm are seen making the green translucent and hard as result of which the breakage during the meaning is minimised. The colour of price changes To yellow to yellowishBrown depending upon the paddy variety soaking time and temperature and drying time and temperature. The loss of protein and starch during the cooking is very less water soluble vitamin B and other water soluble nutrients diffusers into endosperm during parboiling and hence loss of nutrients is less. 2.   On milling characteristics:- Breakage of rice during meaning is most due to inherent cracks and fissures update bro present in the kernel. Parboiling seals the cracks and hardens The Grain the breakage also depend upon milling con...

As a discipline, Food Microbiology does not have a precise beginning.  Events which stretched over several centuries ultimately led to the recognition of the significance and role of microorganisms in foods.  Food borne disease and food spoilage have been part of the human experience since the dawn of our race.  Although the actual cause of these problems would remain a mystery for thousands of years, many early civilizations discovered and applied effective methods to preserve and protect their food: 7000 BC – Evidence that the Babylonians manufactured beer (fermentation).  Wine appeared in about 3500 BC.  In early civilizations (and even today in underdeveloped countries where modern sanitation is lacking), alcoholic beverages like beer and wine were much safer to consume than the local water supply, because the water was often contaminated with intestinal microorganisms that caused cholera, dysentery and other serious disease...

The interactions between microorganisms, plants and animals are natural and constant . The economical role of microorganisms and their importance in all the geochemical cycle in nature is well documented . Since the human supply consist basically of plants and animal or products derived from them, it is understandable that our food supply can contain microorganisms in interactions with foods. in most of the cases microorganisms used for food supply as a source of nutrients for on growth.This, of course, can result in deterioration of the food . By increasing their numbers, utilising nutrients, producing enzymatic changes,and contributing of flavour by mean of breakdown of product or synthesizers new compounds they can spoil the food. This is normal consequence of the action of microorganisms, since one of their function is natural is convert reduced form of carbon ,nitrogen and sulphur in dead plants and animals to oxidize the form required by the plant, which which in turn are c...