Miscibility Studies of Agar-Agar/Starch blends using Various ... - ijrpc
Miscibility Studies of Agar-Agar/Starch blends using Various ... - ijrpc
Miscibility Studies of Agar-Agar/Starch blends using Various ... - ijrpc
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
IJRPC 2012, 2(4) Jagadish et al ISSN: 22312781<br />
Table 2: Experimental and Theoretical Tg values <strong>of</strong> starch, <strong>Agar</strong>-<strong>Agar</strong> and their <strong>blends</strong><br />
<strong>Agar</strong>-<strong>Agar</strong>/ starch blend Experimental<br />
Theoritical Tg values (ºC)<br />
compositions<br />
Tg values (ºC) Fox equation Wood’s equation<br />
<strong>Agar</strong>-<strong>Agar</strong> 44.50 - -<br />
70/30 46.50 48.50 49.51<br />
50/50 50.10 51.70 53.35<br />
<strong>Starch</strong> 61.20 - -<br />
Reduced viscosity ( red<br />
)<br />
25<br />
20<br />
15<br />
10<br />
5<br />
agar<br />
90/10<br />
80/20<br />
70/30<br />
60/40<br />
50/50<br />
40/60<br />
30/70<br />
20/80<br />
10/90<br />
starch<br />
0<br />
0.00 0.02 0.04 0.06 0.08 0.10 0.12 0.14 0.16 0.18 0.20 0.22<br />
Concentration (g/dL)<br />
Fig. 1: Huggins’s plot for 0.2% w/v, agar-agar/starch <strong>blends</strong> in water at 30ºC<br />
Reduced viscosity ( red<br />
)<br />
16<br />
14<br />
12<br />
10<br />
8<br />
6<br />
4<br />
agar<br />
90/10<br />
80/20<br />
70/30<br />
60/40<br />
50/50<br />
40/60<br />
30/70<br />
20/80<br />
10/90<br />
starch<br />
2<br />
0<br />
0.00 0.02 0.04 0.06 0.08 0.10 0.12 0.14 0.16 0.18 0.20 0.22<br />
Concentration (g/dL)<br />
Fig. 2: Huggins’s plot for 0.2% w/v, agar-agar/starch <strong>blends</strong> in water at 50ºC<br />
1052
Change language