Preparation high quality camellia oil by combining ultrasound pre-treatment and microwave as drying method: Interactive effect on drying kinetics, metabolite profile and antioxidant ability.

ABSTRACT: This study systematically investigates the effects of different drying methods-Hot Air Drying (HAD), Microwave Drying (MWD), and Ultrasound-Microwave Combined Drying (UMWD)-on the drying kinetics, total phenolic content (TPC), antioxidant activity, and metabolome of Camellia oils (COs). UMWD significantly reduced drying time and increased TPC by 102.20 % and 395.94 % compared to MWD and HAD, respectively. The antioxidant capacity, as measured by FRAP, DPPH, and ABTS assays, was enhanced to 8.51, 11.35, and 37.68 µg VC/mL under UMWD conditions, showing marked improvements over MWD and HAD. Metabolomic analysis identified 1,350 metabolites, with 447 differential metabolites specific to UMWD. A total of 47 antioxidant-related metabolites (ACCMs) were identified, most of which exhibited up to

SUBMITTER: Li Q 

PROVIDER: S-EPMC12018082 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature