Handbook of Hygiene Control in the Food Industry

Temperature Temperatures above40 ÎC are not favourablefor the developmentof most stored product insect pests, while temperatures ...

whilethe competingspeciesmaynot be affected.Thiswill typically favour the speciesthat is adaptedto the changein temperatureand m ...

systems.Control measures can be dividedinto threemajorgroups: preventative measures;chemical control;and physicalmeasures. 26.6. ...

impacton reducing insectactivity;however, without a goodsanitationpro- gramme one will nevereliminatethe source of the infestati ...

takingtemperaturereadingson a continuousbasis.The readingscan be taken using either portable temperature probes or permanent ins ...

Fumigants are volatile chemicals, their vapours entering the insect by inhalation or throughthe bodysurface. Fumigation is usedi ...

the flouris thrownby centrifugal forcebetween two flat steeldiscsor platesthat revolve on a central shaftat veryhighspeed. Small ...

Hermetic storage In hermetic storagethe grain or othercommoditiesare placed in an airtight enclosure. The natural respiratory ac ...

∑ The use of insectgrowth regulators (IGRs). Methoprene is veryeffectiveas residual insecticide.Alsobiopesticide,suchasBacillus ...

27.1 Introduction: limitations in current CIP systems A cleaning-in-place (CIP) system can be only as effective as its design, c ...

cleaningand therefore formation of a biofilm. Assumingthe cleaningdetergent in a processline has a velocityof 2 m/s,a T-section ...

Detergents The effectiveness of detergents is relatedto theirchemical activity, composition, concentration,surface tensionproper ...

make surethereare no traces of the characteristiccomponentsof the previous solutions.The actualcleaning stepsand timesdependon t ...

contactwiththe disinfectant. The strengthof the disinfectantused can be affectedby decompositionof soil, and bacteria that survi ...

Fig. 27.3 State of the art hygiene design compared with standard design. ...

Single-pathCIP system In the single-pathCIP system, a freshly made-upcleaningsolutionis supplied to the plant and thendrained,an ...

Fig. 27.4 In-line dosing requires the use of the right dosing technology. ...

system, whichgivesa measureof concentration.Conductivityprobes indicate that rinsing has beensuccessfuloncethe conductivityof th ...

Fig. 27.5 Conductivities of various cleaning system fluids. ...

Returnwatertank Thistankcollectsthe waterfrom the intermediate and finalrinsingsteps, holdingit readyfor the next pre-rinse.The ...