Effect of microwave and infrared drying over polyphenol content in Vaccinium meridionale (Swartz) dry leaves

• DOI: 10.1111/jfpe.12939
• Publication Date: 2018-12-03T10:05:12Z
• Authors: Victor H. Borda‐Y...; Farid Chejne; Laura V. Daza‐Oli...; Andres F. Alzate‐...; Benjamin A. Rojano; Vijaya G. S. Ragh...
• Keywords: Nutraceutical; Vaccinium

Abstract In the present work drying of blueberry (mortiño) leaves ( Vaccinium meridionale‐Swartz ) was done using a hybrid equipment with infrared and normal microwave drying. During tests there record moisture content versus time; samples were taken during time to analyze total phenol (PT) content, FRAP assay catechin measures by HPLC‐DAD. The PT analysis shows that its in dry blueberries, increased 12 times more than infrarred While blueberries antioxidant capacity nine process comparison process. catechins HPLC‐DAD better result for concentration found Similar occurred (−) epicatechin. Finally, (+) concentrations compared commercial materials such as tea mate leaves. Practical applications consumption nutraceutical products rich polyphenols has become important last decades. this research, effect on meridionale , Swartz) studied because it previous studies contain potential can be used develop beverages similar drinks.