Laboratorio de Industrias Alimentarias II, Universidad Nacional del Chaco Austral, Comandante Fernández 755, Presidencia Roque Sáenz Peña 3700, Chaco, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina.
Laboratorio de Industrias Alimentarias II, Universidad Nacional del Chaco Austral, Comandante Fernández 755, Presidencia Roque Sáenz Peña 3700, Chaco, Argentina.
Food Chem. 2019 Jul 1;285:369-379. doi: 10.1016/j.foodchem.2019.02.003. Epub 2019 Feb 7.
The objective of this work was to deepen on the study of functional properties of the phytochemicals present in Prosopis alba exudate gum (G), as well as to rule out possible adverse effects of some of its components. Commonly employed purification methods were compared. Filtration prevents further loss of potentially bioactive compounds. The filtrated gum showed a higher concentration of phenolics, flavonoids and tannins than arabic gum, which was correlated with better in vitro antioxidant properties. Particularly, tannins, commonly considered as toxic compounds in exudate gums, were found in lower concentration than in others gums obtained from genus Prosopis and Acacia. The toxicological evaluation performed on rats did not show symptoms of intoxication associated with the administration of the gum. These results provide useful evidence to support the potential use of G as a safe functional food additive with the added benefit of taking advantage of a non-exploited natural resource.
本工作旨在深入研究洋槐渗出胶（G）中植物化学物质的功能特性，并排除其某些成分可能产生的不良影响。比较了常用的纯化方法。过滤可防止潜在生物活性化合物的进一步损失。过滤后的胶比阿拉伯胶含有更高浓度的酚类、类黄酮和单宁，这与其体外抗氧化性能更好相关。特别是单宁，通常被认为是渗出胶中的有毒化合物，其浓度低于从金合欢属和阿拉伯胶属获得的其他胶。对大鼠进行的毒理学评价没有显示出与胶给药相关的中毒症状。这些结果为支持将 G 用作安全的功能性食品添加剂提供了有用的证据，此外还可以利用未开发的自然资源。
