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explain the procedure for preparation of bacterial smearstart the exercise by following the steps enumerated herewith1 take properly washed and dried
q what do you understand by canningcanning involves the application of heat that is high enough to destroy all pathogenic microorganisms and their
explain the staphylococcus - characteristics of bacteriastaphylococcus - it is gram positive nonsporulating facultative anaerobic cocci present in
explain the bacillus - characteristics of bacteriabacillus - it is gram positive endospore former obligate aerobic or facultative aerobic rods
explain the pseudomonas - characteristics of bacteriapseudomonas are aerobic gram negative straight or slightly curved rods that are motile by polar
explain the proteus - characteristics of bacteriait is gram negative non-sporulating rod which is characterized by rapid motility peritrichous
explain the klebsiella - characteristics of bacteriait is gram negative non-sporulating non-motile and non-pigmented rod which is commonly found in
explain the escherichia - characteristics of bacteriait belongs to order enterobacteriales it is the best-studied organism present in the colon of
q why we need sulfuringsulfuring is the process which is used to destroy microorganisms and to preserve colour fruits after blanching may be dipped
q what do you mean by dehydrationthe word dehydration usually refers to the use of controlled conditions of heating with the forced circulation of
explain the disadvantages of fixationfixation has following disadvantages also these are highlighted herewithi it distorts the cells appearanceii
q what do you mean by blanchingthe enzymes in the food system can be separated into four groups relating to the changes in flavour colour texture and
define the chemical fixation methodhere chemical fixatives containing ethanol acetic acid and formaldehyde etc penetrates the cell and inactivates
q describe the freezing - techniques of preservationthis is a method of preservation using low temperature the chief preservative effect of freezing
explain the heat fixation methodthis is the usual method here bacteria is fixed by gentle heating of air-dried bacterial film which results in
q show the techniques of preservationthe various methods can be used for preservation of foods some of the common methods employed to preserve
show the principles of preservationvarious methods can be used for preservation of foods like freezing pasteurization sterilization canning
what do we mean by fixationfixation is the process of preserving internal and external structures of microorganisms it leads to the killing of
q define food spoilagefood spoilage is a major concern of all people spoilage by growth of bacteria yeasts and moulds limits the time that the food
define method used for capsular staining - anthony staining methodanother method used for capsular staining is anthony staining method devised by ee
q detect the presence of synthetic food colours in the given samplesobjectives after conducting this activity you will be able tobull describe the
is it more indicated for a geneticist desiring to map the x chromosome of the mother of a given family the researcher does not have access to her dna
why capsulate staining is difficultcapsule staining is difficult because capsular material is soluble in water and may be dislodged or removed during
define capsule staining anthony staining methoda rigid well-organized gelatinous layer called capsule is present outside the cell wall of many
q what do you mean by permissible level to regulate and enforce safety about the use of these synthetic colours and dyes pfa 1954 has covered their