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45<br />
Dods ed Kuns (f969) had5ted th. eel]]s of Hr&ognohon8 eutopla<br />
from semi continuous auircphic culrurc and yashed f@ ofsrbsrrate. The ccls w€re<br />
tunlyed fo. ch.mical @nposition ed nuLilionat vstue. Tho @lh wcrc obs€rv.d to<br />
onlain l37o nillogen on dry sotids basis. Thc biotogicat valuc del€min€d tttrough<br />
rar f€edin8 was 77o/o \]ll,ifofllttf for casein md bact.rial prepamtiotrs. Cas.in<br />
nitrogen was 99% dig*tibte, \rhile borh whole boilcd and sonicalty ruprurcd<br />
baclc.ial cclls had 93% digcstibiliry. The nel prclcin uritiarion of bacrerial Drclein<br />
w.r 72% !s cep.red to ?6% of c4ein. The Miro &id compGidoa delted (h.r<br />
sulfer cortaining smino acid ws thc fisrlimiring.<br />
Han et at. (\971) cvaluarcd the sirgle ce protein prodrc.d through<br />
femenbtor of ellutosic aubsrite wi$ C./idoho@ dd ,lbarigw faecalis.<br />
The c€lluld m6s isotated had *solial dnim eid, qc€pr sutphd conraining<br />
dino acid (methiorin€) th. qusnliry ofwhich was towd lJ)an nandrd DroreiD of<br />
milk ed e88, bul wa! at par with thar of FAo referencc prcrein. The w€igh1 8ain,<br />
nel pforein urili?rtion and pror.in digcrribihy of lh€ g.oups fed diers conraininc<br />
micrcbial prorein were markedty tow€r $an 6e co,npa.abte latues ro rtre eroup tcd<br />
r l0% casein protein dier. How€ver the m€thionine supptemenl.tion of micrcbial<br />
prcleitr mhmced irs ncr p.olcin utilization. There ws a nnear relarionship berw€co<br />
fte dieraly oicrobiat t.rct .nd the facc.t nirroilen coni.nr of rh. r.st hrs. Ttey<br />
suSSested thar rhe high fa@t trir.osen was prcbabty d@ lo tne Esisrance of rhe cetl<br />
*all of lricoolgdisms to dig€stion. Howeve. fie cett tysis prior lo t.din&<br />
improved thc eflici.ncy ofprorein untizarion.<br />
Kihlb€rg (1972) Bcd 30% dd 40% of y4t 6 the sot. source of nnrosd<br />
in Oc 6t di€t ed rcporled that . f.cding pdiod dceeding one yee dcvctoD€d scv..<br />
livef l€siors. The lonS lerm feeding foi sev€rat gcnenrions caused stos Srowth,<br />
which was due io deficiency ofslltfer conraining amino acids. ln anorher srudy a
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