Yerba mate (Ilex paraguariensis) traditionally grown in South America. Its extract contains bioactive compounds which are associated with pharmacological activities. Freeze-concentration (cryoconcentration) process allows the removal of water preserving the bioactive compounds in extracts. Furthermore, yerba mate extract incorporation into starches is promising for food and pharmaceutical uses. This process can be evaluated using simultaneous Thermogravimetry and differential thermal analysis (TG–DTA). The aim of this study was to obtain corn starch incorporated with freeze-concentrated yerba mate extract. The evaluation of freeze-concentration was carried by extracts analyses of density, total dry matter and ash. The evaluation of yerba mate extract incorporation into corn starch was performed using simultaneous TG–DTA system. Density results revealed extracts different composition and dry matter indicated that compounds were concentrated at 0.576% ratio after freeze-concentration stage. Nevertheless, incorporated starches showed exothermic peaks in DTA curves at temperatures between 287 and 514 °C, which increased in intensity in agreement with freeze-concentration stages advance. Thus, yerba mate oxygenated compounds were incorporated into starches. Nutraceutical products can be obtained using the incorporation of yerba mate extract into starches; however, further studies are necessary to extend these applications.

Yerba mate（冬青）），传统上在南美种植。其提取物含有与药理活性有关的生物活性化合物。冷冻浓缩（冷冻浓缩）工艺可以去除水中的水分，从而保留提取物中的生物活性化合物。此外，将yerba mate提取物掺入淀粉中有望用于食品和药物用途。可以使用同时热重分析和差热分析（​​TG-DTA）评估该过程。这项研究的目的是获得掺有冷冻浓缩的yerba mate提取物的玉米淀粉。通过对密度，总干物质和灰分的提取物分析进行冷冻浓缩的评估。使用同时TG-DTA系统进行了将yerba mate提取物掺入玉米淀粉的评估。密度结果表明，提取物的组成和干物质不同，表明冷冻浓缩后化合物以0.576％的比例浓缩。然而，掺入的淀粉在287至514°C的温度下在DTA曲线中显示出放热峰，其强度随着冷冻浓缩阶段的进展而增加。因此，将yerba mate含氧化合物掺入淀粉中。通过将马黛茶提取物掺入淀粉中可以得到营养产品。但是，需要进一步的研究来扩展这些应用。其强度随着冷冻浓缩阶段的增加而增加。因此，将yerba mate含氧化合物掺入淀粉中。通过将马黛茶提取物掺入淀粉中可以得到营养产品。但是，需要进一步的研究来扩展这些应用。其强度随着冷冻浓缩阶段的增加而增加。因此，将yerba mate含氧化合物掺入淀粉中。通过将马黛茶提取物掺入淀粉中可以得到营养产品。但是，需要进一步的研究来扩展这些应用。