OM0228 Page90of99
February/2014
EnergiesRequiredtoDestroySomeMicroorganismsByUltravioletRadiations(e)
MoldSpores
Microwatt
seconds
percm/2
Protozoa
Microwatt
seconds
percm/2
Penicillumroqueforti 26,400 Paramecium 200,000(a)
Penicilliumexpansum 22,000
Penicilliumdigitiatum 88,000 NematodeEggs 40,000(b)
Aspergillusglaucus 88,000
Aspergillusflavus 99,000 Algae 22,000(c)
Aspergillusniger 330,000
Rhizopusnigricans 220,000 Virus
MucorracemosusA 35,200 Baceriophage(E.Coli) 6,600
MucorracemosusB 35,200 TobaccoMasaic 440,000
Oosporalactis 11,000 Influenze 3,400(d)
Yeasts
Saccharomyces 13,200
ellipsoideus 17,600
Saccharomycescerevisiae
13,200
Brewers'yeast 6,600
Baker'syeast 8,800
Commonyeastcake 13,200
Bacteria
Streptococcuslactis 8,800
Strep.hermolyticus(alphatype) 5,500
Staphylococcusaureus 6,600
Staphylococcusalbus 5,720
Micrococcussphaeroides 15,400
Sarcinalutea 26,400
Pseudomonasfluorescens 7,040
Escherichiacoli 7,040
Proteusvulgaris 7,480
Serratiamarcescens 6,160
Bacillussubtilis 11,000
Bacillussubtilisspores
22,000
Spirillumrubrum 6,160
References:
(a) Luckiesh,Matthew(1946)ApplicationofGermicidal,EthyemalandInfraredEnergy,D.VanNostrando.,NewYork,NewYork,pp253
(b) Hollaender(1942)Aerobiology,A.A.A.S.(for90%inactivation),pp162
(c) Ellis,C.andWells,O.O.(1941)TheChemicalActionofUltravioletRays,ReinholdPublishingCorp.,pp.713‐714
(d) Hollaender
,A.,Oliphant,J.W.(1944)Theinactivationeffectofmonochromaticultraviolet.RadiationonInfluenzeVirus(for90%inactivation)
Jour.ofBact.48,pp.447‐454
(e) Thistable,"EnergiesRequiredtoDestroySomeMicroorganismsbyUltravioletRadiations"comesfromWestinghousebrochureentitled‐"Westinghouse
SterilampGermicidalUltravioletTubes"
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