赛洛拉克聚糖来源于 Courbaril 树胶种子，作为 l-抗坏血酸的包封剂。
Xyloglucan from Hymenaea courbaril var. courbaril seeds as encapsulating agent of l-ascorbic acid.
机构信息
Biochemistry Department/Laboratory of Immunopathology Keizo Asami (LIKA), Universidade Federal de Pernambuco-UFPE, Av. Prof. Moraes Rego s/n, CEP 50.670-420, Recife, PE, Brazil; Eixo de Produção Alimentícia, Instituto Federal de Educação do Ceará- IFCE, Av. Dr. Guarani, 317, Derby Clube, CEP: 62.042-030, Sobral, CE, Brazil.
Biochemistry Department/Laboratory of Immunopathology Keizo Asami (LIKA), Universidade Federal de Pernambuco-UFPE, Av. Prof. Moraes Rego s/n, CEP 50.670-420, Recife, PE, Brazil.
出版信息
Int J Biol Macromol. 2018 Feb;107(Pt B):1559-1566. doi: 10.1016/j.ijbiomac.2017.10.016. Epub 2017 Oct 5.
This study evaluated the l-ascorbic acid (AA) encapsulation in microparticles of xyloglucan (XAA) extracted from Hymenaea courbaril seeds by spray drying (SD) and its application in tilapia fish burgers. The encapsulation efficiency was 96.34±1.6% and the retention of the antioxidant activity was of 89.48±0.88% after 60days at 25°C. SEM images showed microspheres with diameters ranging from 4.4 to 34.0μm. FTIR spectrum confirmed the presence of AA in xyloglucan microparticles, which was corroborated by DSC and TGA. The release of ascorbic acid was found to be pH-dependent. The application of XAA in tilapia fish burger did not change the pH after heating and the ascorbic acid retention was greater compared to its free form. The results indicate that xyloglucan can be used to encapsulate AA by SD and suggest that XAA was able to reduce undesirable organoleptic changes in fish burgers.
本研究通过喷雾干燥（SD）评估了从 Hymenaea courbaril 种子中提取的木葡聚糖（XAA）微球对 l-抗坏血酸（AA）的包封及其在罗非鱼鱼饼中的应用。包封效率为 96.34±1.6%，在 25°C 下放置 60 天后，抗氧化活性保留率为 89.48±0.88%。SEM 图像显示微球的直径范围为 4.4 至 34.0μm。傅里叶变换红外（FTIR）光谱证实了 AA 存在于木葡聚糖微球中，这得到了差示扫描量热法（DSC）和热重分析（TGA）的证实。AA 的释放呈 pH 依赖性。XAA 在罗非鱼鱼饼中的应用在加热后不会改变 pH 值，并且与游离形式相比，其保留的抗坏血酸更多。结果表明，木葡聚糖可以通过 SD 来包封 AA，并表明 XAA 能够减少鱼饼中不良的感官变化。
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