You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
Chapter- 2<br />
REVIEW OF LITERATURE<br />
Recycling of w6t€ hal.rials ud indarlial bypiodlcis noi only h.lps<br />
in educing the pollution but also l.ads io th. p.oduction ofmby useful prcducts.<br />
The recycled wasle materials @ usefully conve.r.ble io edibl€ prcducrs like mitk.<br />
and €ggs lhiouSh livestocl atrd poljtry. This pmces has lso fold advantag.,<br />
'neal<br />
it meets the nutrienrs .equiremenls for livestocupoullry on one hdd and hetps in<br />
bridSing th€ prct€in shonaSe gap for humans on the orher hand. A 8@d deal of<br />
ro.k ba bem done on th. bioconv€rsion of rice polishings into high gradc nutrienr<br />
ihrolgh tenenhrion by diffcrcnr kin& ofmicroorganisds. The avaitabte lh.nturc<br />
otr dirqenl dpels of femstltion as wcll s bioloSidl aatuation of diff.rcnl<br />
f.nnctrtalion products hd ben @iewed in rhc following pdgEphs<br />
A. FERMENTATION<br />
I. SUBSTRATE TREATMf,NTS<br />
lJ D€frtting<br />
Kimi er o/. (1989) wo*ed on protein e.richnent of defated rice<br />
polishings rhrough its fement^rion virh Candi.la Uilij. They found thal yeasl coutd<br />
synllt€size 22.125% lru€ polein whei 9yo sljbsl.al€ was fermenr€d uder oDrinlrn<br />
conditions for a pe.iod of?2 hon$. ]'hc biomass pfot€in was, howevd, d€ficienlin<br />
aDirto acid, valine. Kho (1990) convedcd dcfarlcd ri@ potishings to prorein<br />
conc.nlrale dd biolosi@lly evalnared il in broile. chicks. The fementrrjon ws<br />
.atied onr nith Ttichodema hanihuh. He s$c...d.n h inoeasing the infterenr<br />
prot.h of ri@ ralishings ftom 14 to 24.80%. n. ftngat bioms was f.d ro b.oil.r<br />
chicks by rcplacinS veg€rnbl€ protcin sour.es at ldcls of25 and 50yo of thc Etion.
Change language