Find in Library
Search millions of books, articles, and more
Indexed Open Access Databases
Impact of Drying Process on the Phenolic Profile and Antioxidant Capacity of Raw and Boiled Leaves and Inflorescences of <i>Chenopodium berlandieri</i> ssp. <i>berlandieri</i>
oleh: Ángel Félix Vargas-Madriz, Aarón Kuri-García, Ivan Luzardo-Ocampo, Haidel Vargas-Madriz, Iza Fernanda Pérez-Ramírez, Miriam Aracely Anaya-Loyola, Roberto Augusto Ferriz-Martínez, Octavio Roldán-Padrón, Luis Hernández-Sandoval, Salvador Horacio Guzmán-Maldonado, Jorge Luis Chávez-Servín
Format: | Article |
---|---|
Diterbitkan: | MDPI AG 2023-10-01 |
Deskripsi
<i>C. berlandieri</i> ssp. <i>berlandieri</i> (<i>C. berlandieri</i>) is one of the most common members of the group of plants known as quelites, which are dark leafy greens widely consumed in Mexico. This study aimed to evaluate the impact of two drying procedures (oven drying and freeze-drying/lyophilization) on the polyphenolic composition, antioxidant capacity, and proximal chemical analysis of <i>C. berlandieri</i> leaves and inflorescences (raw or boiled). The results indicated that the raw freeze-dried samples had higher amounts (<i>p</i> < 0.05) of total phenolic compounds, total flavonoids, and antioxidant capacity, mainly in the inflorescence. The oven-dried samples showed an increased concentration of polyphenols after boiling, while the lyophilized samples showed a slightly decreased concentration. The drying process was observed to have little impact on the proximal chemical composition. Quantification by UPLC-DAD-ESI-QToF/MS identified up to 23 individual phenolic compounds, with freeze-dried samples showing higher amounts of individual compounds compared with oven-dried. Procyanidin B2 was found exclusively in the inflorescences. The inflorescences have a higher content of phenolic compounds and greater antioxidant capacity than the leaves. Regardless of the drying process, the leaves and inflorescences of <i>C. berlandieri</i> contain an interesting variety of phenolic compounds that may have beneficial effects on health.