Evaluation of drying methods and green extraction techniques to enhance the recovery of bioactive compounds from hop leaves: A sustainable approach for the valorisation of agricultural by-products.

About the flavan-3-ols, the drying method applied exerted a highly significant influence on their content (p < 0.001), with a reduction of FLC in the OD samples of approximately 93 % compared to that of the FD samples, irrespective of the hop variety and extraction technique under consideration ( Fig. 1 b).

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