2009
DOI: 10.1590/s0104-14282009000200010
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Abstract: Chitosan/gelatin microparticles were prepared by complex coacervation. Three chitosan (CH) samples, with different acetylation degrees and intrinsic viscosities, were used together with commercial gelatin (G) samples. Microparticles formation was investigated at various CH/G ratios, within the pH range of 3.5 to 6.0. Reactions were carried out at 40 and 60 ºC, for 2, 4, and 6 hours. Turbidity measurements performed at 633 nm were used to monitor the process. The resulting curves revealed maximum values, which … Show more

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Cited by 11 publications
(4 citation statements)
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“…The intensity of C = O peaks increased with the decline ratio of gelatin in composite sponge from 1 : 3 to 3 : 1 (chitosan/gelatin). These results can be attributed to the interaction of −NH 3+ of chitosan and the COO − of gelatin in three composites [18,19]. Figure 3 shows the cross-section morphology of chitosan/gelatin composite sponges.…”
Section: Resultsmentioning
confidence: 90%
“…The intensity of C = O peaks increased with the decline ratio of gelatin in composite sponge from 1 : 3 to 3 : 1 (chitosan/gelatin). These results can be attributed to the interaction of −NH 3+ of chitosan and the COO − of gelatin in three composites [18,19]. Figure 3 shows the cross-section morphology of chitosan/gelatin composite sponges.…”
Section: Resultsmentioning
confidence: 90%
“…Under constant magnetic stirring, the 7S solution was added dropwise into the CS solution with a syringe, and the mixture was kept stirring for 30 min. Through the variation of the 7S‐to‐CS mass ratio and the total concentration of 7S and CS and the adjustment of the pH of the mixture with 2 mol/L HCl or NaOH solution, the effects of the mass ratio, total concentration, and pH on the self‐assembly of the nanoparticles were investigated according to the turbidity method described in the literature …”
Section: Methodsmentioning
confidence: 99%
“…The turbidity was measured according to the literature but with some modifications. Briefly, after the mixture was left for 10 min, the mixture was gently poured into a 1‐cm cuvette, and the turbidity was then rapidly determined at 600 nm in a ultraviolet–visible (UV–vis) spectrophotometer (UVmini‐1240, Shimadzu, Japan).…”
Section: Methodsmentioning
confidence: 99%
“…Coacervate complexes can be obtained from numerous polyelectrolytes, mainly biopolymers such as proteins and polysaccharides, as they are biocompatible, biodegradable and non-toxic (Silva & Andrade, 2009). Whey is an excellent source of protein, although it is part of the scenario of biofunctional products and of high nutritional value, it has still been discarded by some dairy industries (Ganju & Gogate, 2017).…”
Section: Introductionmentioning
confidence: 99%