Multi-Frequency Ultrasonic Extraction of Anthocyanins from Blueberry Pomace and Evaluation of Its Antioxidant Activity.

Background: A large amount of blueberry pomace is discarded and wasted.

Objective: To make full use of blueberry pomace and extract anthocyanins.

Method: Multi-frequency ultrasound was used to extract anthocyanins from blueberry pomace.

[The change and significance of the cardiopulmonary exercise test parameters in patients with obstructive sleep apnea-hypopnea syndrome].

Objective: To investigate the change of exercise cardiopulmonary function in patients with obstructive sleep apnea-hypopnea syndrome (OSAHS).

Methods: Thirty OSAHS patients and 18 normal healthy adults (control group) were studied by cardiopulmonary exercise test (CPET). The results including maximal oxygen uptake percent predicted (Vo(2)max% predicted), oxygen uptake to work rate (Vo(2)/WR), oxygen pulse percent predicted (Vo(2)/HRmax% predicted), anaerobic threshold to maximal oxygen uptake (AT/Vo(2)max), breathing reserve (V(E)max/MVV) and ventilatory equivalents for carbon dioxide (V(E)/V(CO2)) were compared between two groups.