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tyndall effectone of the best ways to distinguish a solution from a colloidal dispersion is to use a strong beam of intense light as the beam passes
what is lyophobicif the affinity of the dispersed phase to go into or to remain in colloidal dispersion is slight the dispersed phase is said to be
explain about lyophilicif the affinity between the dispersed phase and the medium is high the dispersed phase is said to be lyophilic solvent loving
what are the types of colloidal dispersionsdepending upon the relative affinity of the dispersed phase for the dispersion medium colloidal
classification of colloidal systemsthomas graham referred to colloids as the study of sub microscope dispersion according to him it dealt with
explain about colloidal systema colloidal system on the other hand is a heterogeneous system the material that forms the base of the system is
define the word solutea solution is a homogenous mixture of two or more different substances for instance salt in water form a solutionthis means
define the word colloidthe word colloid you may be interested to know is derived from the greek word kolla meaning glue and is defined as a system
explain colloidal state foods contain a high percentage of water in which other nutrients present are dispersed the existence of the colloidal state
describe how enzymes assay is helpful in milk and meatwheat seedsa determination of alpha-amylase content an increase indicates sprouting
define genetic engineering and biotechnologygenetic engineering or recombinant dna technology involves the use of a variety of enzymes such as
how can the enzymes be classified explain giving examples based on structure enzymes can be classified into monomeric enzymes and oligomeric
chlorophyll chlorophyll is the porphyrin most widely used as a natural colourant its widespread occurrence in photosynthetic tissue and its
the feasible methods of stabilization within the constraints of retaining natural statuscomplex formation anthocyanin occurs naturally as complexes
stabilized forms of natural colourantsthe mimicking of the native environment in which a natural colour exists is just one way of producing a
explain red anthocyanin pigmentsred anthocyanin pigments from miracle fruit were isolated and tested in carbonated beverages in combination with the
stability of natural colorants in foodsmany attempts have been made to retain colouration by adding chemicals or modifying processing conditions
determine the parts of plant sourcethe natural food colourants from plant sources are classified into 5 typesa anthocyaninsb betalainesc carotenoidsd
plant sourcesalthough there is a multitude of colours in the plant kingdom their extraction and use in food systems is not an easy task unless the
state the stabilization of haem pigmentsligands suggested for the stabilization of haem pigments are imidazole and its derivatives s-nitrosocysteine
explain animal sources of novel sources of natural colourants the most common animal pigments of use as food colourants are those based on the
explain cultivation of microorganismsit is for the production of food colourants has attractions these must be measured against the financial
explain monascus speciesmost of the reports of food colourants from microbial sources involve monascus species particularly monascus purpureus
novel sources of natural colourantsmicrobial sourcesproduction of materials by microbial cultures has several advantages the rapid growth of microbes
explain about chlorophylls chlorophylls are used as colourants in a range of foodstuffs and both natural chlorophyll containing magnesium as the