ABSTRACT
This study evaluated the effect of water temperature (65 °C, 75 °C, 85 °C, 95 °C) on the concentration of caffeic acid, 5-caffeoylquinic acid, 3,4-dicaffeoylquinic acid, 3,5-dicaffeoylquinic acid, 4,5-dicaffeoylquinc acid and rutin in chimarrão aqueous extracts prepared from two commercial types of yerba mate: traditional and coarse ground. The chimarrão preparation simulated the homemade process. Regardless of the temperature, aqueous extracts from the coarse ground had 60% more phenolic compounds than the traditional ones. In the extracts of coarse ground yerba mate the temperature of 95 °C favored the extraction of the compounds in relation to the other temperatures. For the traditional yerba mate extracts there was no difference regarding the temperature. The chlorogenic acids content in the chimarrão extracts is significantly higher than in other foods and beverages and represent an excellent contribution for chlorogenic acids intake.
Keywords: chlorogenic acids; Ilex paraguariensis; infusion; yerba mate
… used. Water was purified using a Milli-Q® (Millipore) system. The phenolic compound standards (caffeic acid, 5-CQA, 3,4-DQA, 3,5-DQA, 4,5-DQA, and rutin) were obtained from Biopurify Phytochemicals Ltd. (Chengdu, China) …
