抄録
The relation between the concentration, T/θ, Tc and Θc are observed on the two kinds of agar samples, A (market sold, ordinary low graded product) and B (specially processed high grade product), using the Sheppard's torsion dynamometer, where T/θ expresses the modulus of elasticity, Tc the breaking loap, and Θc the twisted angle of the sampled gel.
Results of the observations are shown in the Table 1, Fig. 2, where we computed that the economical value of the sample A, is estimated about 66-75% of the sample B, based on the values of T/θ and Tc. Other kinds of agars of which these values known can be compared on the same way.
The data of the agar gels (2%) derived from the several species of red alage are shown in the Table 2 and 3.
In Table 2 the processes of manufacturing agar from red algae are shown, and Table 3 showns respective T/θ Tc anc Θc in 2% gels.
