期刊
FOOD HYDROCOLLOIDS
卷 123, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.foodhyd.2021.107179
关键词
Polysaccharides; Edible films; Astaxanthin; Release kinetics; Antioxidant activity
资金
- National Science Centre (Poland) [2019/35/N/NZ9/01795]
This study investigated the effects of different concentrations of AST on the properties, release kinetics, and antioxidant activity of blend films. Regardless of the AST concentration, CMC-based films were more opaque, stronger, and less stretchable than OSA-based films, with an intense red color when supplemented with AST. The presence of AST significantly decreased the puncture strength and oxygen permeability of CMC-based films, while not affecting water vapor barrier properties. AST release kinetics showed quasiFickian behavior, with OSA-based films releasing AST at a slower rate compared to CMC-based films, with a high positive correlation between AST release and antiradical activity.
The effect of increasing concentrations (0, 0.25, 0.5, 1%) of commercial water-soluble AstaSana astaxanthin (AST) on the physicochemical properties, release kinetics and antioxidant activity of binary 75/25 carboxymethyl cellulose/gelatin (CMC75/GEL25) and octenyl succinic anhydride starch/gelatin (OSA75/GEL25) blend films was investigated. The microscopic observations showed that the obtained blends were phase-separated systems. Regardless of the AST concentration, the CMC-based films were more opaque, stronger, and less stretchable than the OSA-based films. The AST-supplemented films exhibited an intensive red color. The starch granules (from the AST formulation) contributed to high roughness and opacity of the films. The presence of AST contributed to a significant decrease of the puncture strength and oxygen permeability of the CMC-based film. The AST-supplemented films did not differ in terms of the water vapour barrier properties. Due to the low quantity of astaxanthin in the systems, the Fourier-transform infrared spectra of the control and ASTsupplemented films were similar. The increase in the AST concentration was accompanied by reduced solubility and increased swelling of the OSA-based films, while an opposite result was observed for the CMC-based films. According to the Korsmeyer-Peppas with time lag model, the AST release kinetics exhibited quasiFickian behaviour. Due to their weaker solubility, the OSA75/GEL25 films offered at least 7 times slower release of AST than the CMC-based carrier. The times required for 25% AST release from the CMC75/GEL25 and OSA75/GEL25 films were 1.20-1.74 and 12.60-20.04 min, respectively. A high positive correlation (R2 = 0.78-0.91) was found between the AST release and antiradical activity of the films.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据