Physicochemical and functional properties of chitosans prepared from shells of crabs harvested in three different years
Document Type
Article
Publication Date
8-4-2009
Abstract
Selected physicochemical and functional properties of chitosans prepared from shells (designated S-04, S-05, and S-07, respectively) of crabs harvested in three different years (2004, 2005, and 2007) were evaluated. S-07 contained higher protein (27.39%) and chitin (20.62%) but lower ash (49.47%) contents compared with those from S-04 (22.42%, 17.35%, and 51.07%) and S-05 (24.94%, 18.20%, and 51.67%). Physicochemical characteristics of chitosans somewhat differed depending on the harvest year of crabs. Degree of deacetylation (89.01%) of chitosan from S-04 was higher than that from S-05 (84.11%) and S-07 (82.49%). Chitosan from S-04 had comparable L* (76.41) but lower a* (-0.16) and b* (13.70) values than chitosans from S-05 (76.94, -0.04, and 15.66) and S-07 (74.92, 0.26, and 14.45). The highest water- (555%) and dye-binding (65.5%) capacities and DPPH radical scavenging activity (18.1%) were observed with chitosan from S-04, having the lowest viscosity (200 mPa s) and the highest degree of deacetylation. © 2009 Elsevier Ltd. All rights reserved.
Publication Source (Journal or Book title)
Carbohydrate Polymers
First Page
41
Last Page
45
Recommended Citation
Youn, D., No, H., & Prinyawiwatkul, W. (2009). Physicochemical and functional properties of chitosans prepared from shells of crabs harvested in three different years. Carbohydrate Polymers, 78 (1), 41-45. https://doi.org/10.1016/j.carbpol.2009.03.038