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. Author manuscript; available in PMC: 2017 May 2.
Published in final edited form as: Macromol Biosci. 2014 Feb 18;14(6):817–830. doi: 10.1002/mabi.201300472

Table 1.

Optical rotation angle after simultaneous physical and chemical gelation (PC gels), and physical gelation following cross-linking (C gels) for chitosan (Cs)/gelatin (Gel) networks at varying enzyme concentration (10 to 40 U/ggelatin), given after 80 min of gelation.

System type mTGase [U/ggelatin] [α]436nmobs[mdegrees]
Cs1.0%/Gel10% Cs2.0%/Gel10%
Physico-co-chemical gel (PC) 10 -361 ± 3 -
20 -347 ± 3 -346 ± 4
30 -344 ± 3 -
40 -346 ± 5 -338 ± 5

Chemical gel (C) 10 -420 ± 10 -
20 -351 ± 3 -360 ± 15
30 N/A N/A
40 N/A N/A

Physical gel at 12°C 0 -540 ± 15 -510 ± 15

Physical gel at 21°C 0 -390 ± 10 -387 ± 10

Solution at 37° 0 -233 ± 15 -226 ± 15