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explain whipping foam methodwhipping is the most common method used as it forms bubbles by cutting the surface and introducing air into
what are the methods of foamsthere are two basic methods in the formation of foams iea whipping andb
how the foams are formedformation of a foam is dependent on a foaming agent in the continuous phase prior to dispersion of gas the foaming
define the uses of foamsthe foams frequently used in cookery are whipped cream ice cream cake bread meringues milk froth and gelatin food foams
explain briefly about foams consider the following example take some liquid in a glass and agitate or shake it vigorously what do you observe
explain about suspensionssol is a colloidal system in which solid particles are dispersed in a liquid when the particles of a solid are separated
what are the properties og gelspolysaccharides proteins or colloidal complex particles such as caseinate micelles form gels at levels of 10 or
what is gelssol is free flowing liquid at room temperature when it becomes relatively firm it is called a gel there are a number of factors that
what are the major factors of colloidal dispersionthe adsorption of ions by colloidal particles is a major factor in stabilizing a colloidal
illustrate the aqueous phase in sol processingin a sol possessing a continuous aqueous phase the colloidal particles have an electrically charged
explain brownian movementwhen you view a sol through an ultra microscope you will observe that colloidal particles appear to be in a state of rapid
properties of sols sol is a solid liquid dispersion with solid or semi-solid particles dispersed in a continuous liquid phase for eg starch in
he recombinant plasmid extracted from the surviving colonies contains a gene called suc2 that codes for convertase an enzyme needed to metabolize
explain sol -gel transformationduring sol -gel transformation a three dimensional network is formed by the interlocking of dispersed particles the
what are the physical propertie of solsols resemble liquids in their main physical properties - that is they flow and they do not show rigidity of
what are sols a colloidal system in which solid particles are dispersed in a liquid is referred to as a sol to distinguish it from a true
specific gravitythe density of a substance is defined as mass per unit volume the density of a substance is a characteristic property and has
viscosityviscosity as you may already know is associated with fluid flow it is the internal friction which tends to bring to rest portions of the
explain osmotic pressureosmosis as you may already know refers to the flow of solvent into a solution or from a more dilute solution to a more
freezing point - properties of solutionsthe freezing point of a material is the temperature at which it changes from a liquid to a solid a liquid
boiling pointthere are certain properties of solutions which are directly connected with vapour pressure and one of it is boiling point you
determine number of sucrose molecules in the solutionwhen a solid is dissolved in a volatile solvent the vapour pressure of the solution is less than
vapour pressurethe intermolecular forces in a liquid prevent most molecules from escaping from the surface however due to molecular collisions some
define the properties of solutionsseveral properties of solutions are particularly important in food preparations amongst these are colligative
explain the concentration of a solution the concentration of a solution is the amount of solute dissolved in a specified amount of solvent or