Optimization of water-based ultrasonic-microwave assisted extraction (UMAE) of bioactive compounds fromGarcinia mangostanapericarp

Abstract

Objectives Garcinia mangostana (GM) pericarp extract recognizes for relieving skin disorders. It becomes a household fruit juice due to its high concentration of antioxidant compounds, including phenolic and α-mangostin. The purpose of this study was to optimize the conditions of Ultrasonic-Microwave Assisted Extraction (UMAE) of GM pericarp. Methods GM pericarp was extracted by UMAE and conventional decoction extraction. UMAE was created in nine different individuals and combined ultrasonic and microwave power. The amount of phenolic compound, “caffeic acid, ferulic acid”, α-mangostin, and total phenolic content (TPC) were compared. The optimized parameters were particle size of grounded raw material, microwave power, and ultrasonic power during water extraction. Results The optimized UMAE conditions combined 200 W microwave power and 200 W ultrasonic power to extract raw material grounded to 22.6 μm diameter particles (p≤0.05). The synergistic effect of ultrasonic and microwave-assisted extraction significantly (p≤0.05) impacted on the TPC, the yield of caffeic acid, ferulic acid, and α-mangostin. Conclusions Overall, the synergistic effect of ultrasonic and microwave extraction resulted in a significantly higher amount of bioactive compounds when compared to conventional decoction extraction (p≤0.001). These results demonstrated the advantages of UMAE for preparing GM pericarp extract for the food, cosmetic and pharmaceutical industries.

Study on anthocyanins from Lycium ruthenicum Murr via ultrasonic microwave synergistic extraction and its antioxidant properties

“…Thus, a novel, high-efficiency, fail-safe anthocyanin extraction technique would be necessary. Ultrasonic Microwave Synergistic Extraction (UMSE) can have advantages in terms of low energy consumption, excellent extraction efficiency, shortterm, high security, and so on (Chen et al, 2016;Kwansang et al, 2022). The objectives of this work were to optimize the process conditions for the extraction of ALRM by UMSE and to assess its feasibility via a response surface methodology (RSM) employing a Box-Behnken design (BBD) to evaluate the process conditions for the extraction of ALRM using the anthocyanin concentration as an indicator and LRM as a research target.…”