t-,/rrr',r47c

l6
for xanlhan produclion md fast cell growth. In contr6( fed-balch fementalion with
idrnniLrcnt oddilions of glucose to rh. fcrbentltion medium durine th. srationary
pha3e wss not tavoumble for mlhan prcducrio. b@!se of reladvely low O/YE
rcsultinS in low xutho production rat.andyi.ld.
3. CORNSTEEP LIQUOR (CSL) SUPPLEMENTATION
Com step liquor is . by prcduct of @m itrdurry snd is produccd
durint the com wshing. ll is t rich eurce of orgdic nitrogcn, vitMins md
minedls. lt is d$ rich in sotuble su8$s snd th@f@ @ be sed bo|h as .n.r$/
$ppl.,nerl s well $ source of nilrogen Equicd fo. li. microbial gtoslh. ft ha
been us€d ei$er 3 exclusive growlh m€dium o. 6 a supplement in lh. grost'
mdiuD for enhancedent of microbi.l g.ov"4h. Lit€dture hd becn rcvicwcd on
corn sl€cp liquor s supplement in the 8ro*1h m.diu md k sho{n as follows.
Foda .r al. (1973) u5ed com st..p liquo. conlainins procitr 5.2, tolal solids
I L4 lnd cdbohydotes 0.2% fot sowr|i of Candida utilis. Tney obldted oqimum
microbill yiclds of prcteio ild dry matler a 38 to 55% ed 15 lo 29 8/L,
rcspectivcly ancr p@ipilation of liquor bctw@n PH mg€ of 6.0 lo ?.0- The
femenl.lion ws cMied orl at 30'C for 72 hou6. Shellan (19?5) ptoduced tunsal
bio'na$ by fennedting l0 g/L corn sc.p liquor havins C;N ss 6rl with
n i.hod.nM viri.le td 48 hot6.
Smirh d, a/. (1975) delermined lh€ anino ecid composition and prolein
nutilivc values in rais and p'gs f€ed'nS trials. Six diffd€nt funSal my@lia gro$n
on diff.renl subslEtq wee l6led. Th€ protein qulity of fungal biomas of
Rhizops dthbu M 261 sFtin 8rctn on @m slep liqror rcv€lcd NPU, Prclein
ditestibility, biologi@l value and chemical s@re 3s aa,69,64 and 60 rcspecliv.ly.
lle bio'noss ws repoftd lo b. deficient in sulphcr @ntaioing amino,c'd!. Trte
RNA conrenr oflhe biomN wd 1.2 %.