t-,/rrr',r47c

0l
Growth Kinetics
For l}te explan.liotr of trend of g.oMh and cfficiency of subsrrare
ulilialion for the synti€sis of pmlcin by borh thc organisDs, the crc{1h Kinetics
was worked out. Vdjo$s pa.an€tcs w.rc catcularcd for both Aractuiots ipecies
^nd Btivebacteriutu favun, sepaatety. Th€ vatues for Crowlh Kineiics are
presenled in Table E. The rfend ofgrowlh durir8 borh the phases of femenrarion is
tresen&d in Fig-l ed rh. hends ol subsiral€ urilialion, clll mss fomation ed
product (T.P) fomarion arc presented in lig,2.
The Srars of product formarion p€r gram of substrate utitized fo.
Iilrgi is usually repoaed as 0.5 + 0.05 (Ri€che.r at. t966., peireBen. 1975.,
lAwtod et al. t979 al.d Arhar et at. t99j). A $imitar vatue was obtained in lhe
pGent study. Yo8o .r dl (1976) however, showed dir€rent varue b€cause of rhe
E6on that rhe substtnre rhey w.d corraircd t€ss q@rily of cdbon requicd for
Sp@ific 8rcr'lh 6rc (!) obrlined for )trrchniots spcci* (0.035 h-1.)
h rhe p.$cnt srody us in line wift rhe nndings of pmoenr., at. (197E_a) qho
Eported ! as 0.0l2ohr duing slurry srlr€ femcnlation. The specific ercsdr mre
for any fementation p.ocess depcnds lpon $e kind of substrat€ femenred. This
varue is reponed b be hiS}d (Suaki .,,l t97?) in cas. of easity fem€nrabte
subsrmie Gt@'8ht chaiD hydrc.5rbont. Thc sp€cific growth n1e also depends upon
the state of fermentation. Pammcnt er.r1. (1978) r€porred lower values for p (0.01h.
I and 0.0092h') because $ey us€d sotid stale of flenerralion. Tle findinss of
Alhar et al (1995) ,re not in line wilh $e pr€s€nl srudy although they used shske
process of fmentation.
The rate of prcducr fomation (yrJ for bacr..ia is cpo.red 10 be
hisher (0.60 + 0.05). This val!€ for pr$cnt sludy wa! 0.614 ggr. which is close ro
the value reporled by Atha., al (1995). Thc prcdrcr (T.p) c@flidor (y*)