2!) 



E.eperitm;nt ]'J. 4iJl) c.c. of jstiuvli-jiastc ciiiitainiiig 11.41) l;'1':viiis ( l' di y 

 stiiicli WLMC inixml with fK) (m>. iif koji extract. The wlmio \\;us all^wi'd to stand 

 at this t'jiiiperatiirf with an (icfasinnal shakini;. and sample.^ won; witli- 

 dnvwu after 4S, 120, 1!I2, ami 240 Ikhus respectively. After making a deduction 

 fur the ;jO CO. of koji siilutinii need, tlie anuiiiiit of .-^oiids in öOO c.c. and the 

 o|)tic!il rotation were foun<i to lie as follow: — 



T.\i;i,i-: x;. .mtidx uf kO.ii kmnaci' ti-on stauci! .\i' -i m^'c. 

 i 1 43 grams starch to 10 grams koji. 



1 





Total .-taroli prrxliicts 



S;iocilirrnliit(ii-y 



1 



I'inio. 



in .'^olutidn 



jiiiwfr of 



; 





(knii •lpi!\lcti-ii ) 



si;inli lirodlici.-i. 



4S 



liO'llS 



11.714 ;;i-.im.~. 



100°. 15 



120 







0.004 



100°. 2 



102 





lo.ar.'.i 



'.ili''.4 



"411 





10.40(1 



so" 1 













Tiic ctu-ve illustrating this scries of e.xperiinents i.-; seen in (ig. I, Plate. III. 

 Tiie action t!])on the starch, as indicated hy the fail in the sj)eciHc rotatorv 

 jiower, is more rajiid at the lii>giiining of the expciiment, hnt afterwards ])roceed< 

 in a regidar and cotitiiiiiotis nmnuer during the remainder of the experiment. 



Tlw second set of experiments wjvs condiU;ted at ilic same temiieratiire. 

 dili'erent projK^-tions of koji andstarch being nseil. 



T.MU.i: Mi. .M'TMK (»K KU.II K.XTIi.U'T ITdX .vT.\l!( II .\r 11. .-r. 

 .O grams of starcli to 20 grams of koji. 



rotjil stnrcli jirodufis 



Spooilii; i-ntaliirv 



ill .'iullliicill 



(kr.ii ,;c;iui-i,.,n 



l:o\V('r 111' 



..l:ir.-!. ,.r,.,li„-l.. 



4.';U8 gnnii:-. 



liH)-\4 



I.Mli .. 



7ö°.8 



l>8 hdiir.'s 



i'-.l .. 



In tills series the sjime s|i('ciHc rotatory p'^wer. hxi 4, is attained in '!S 

 hours, which i! toul; 120 hnui-s in ll'.o foimer stM'ics to arrive at, and tiie reduc- 

 tiiin !.■< greater in llie liist series in 1(14 hours, than in 24» > Imurs of the I'ormer 

 Tlie rea.son ot'tiiis lieK in the larger jiroporlion of koji i;-;e<l in the secoml tiian 

 in the lirst .series of exix-ritneiiis. liiit ulUioiigli four times .is niisch k «ji was used. 

 *h<' rapidity of the action a])pears to he only alionl twice as -jjre.il 



The fliird and fourth series of es-iicriments were made at a leinperature 

 '..irviii" !;eUv ..■■, ih ,! ,1 ^" C . ' n* ntlierwinc thcv were coudiieted a.s lielurc 



