1. Optimization of DHEA Extraction from Sweet Potato Pomace by Ultrasonic-Microwave Synergistic Employing Response Surface Methodology
- Author
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Junjian Ran, Xinhong Liang, Junliang Sun, and Du Hanmei
- Subjects
Materials science ,Surface Properties ,01 natural sciences ,Analytical Chemistry ,Environmental Chemistry ,Response surface methodology ,Ipomoea batatas ,Microwaves ,Pharmacology ,Waste Products ,Chromatography ,010405 organic chemistry ,Plant Extracts ,010401 analytical chemistry ,Extraction (chemistry) ,Microwave power ,Pomace ,Dehydroepiandrosterone ,0104 chemical sciences ,Ultrasonic Waves ,Yield (chemistry) ,Extraction methods ,Ultrasonic sensor ,Agronomy and Crop Science ,Microwave ,Food Science - Abstract
Background: A lot of sweet potato residues (SPR) were discarded and wasted. Objective: To make full use of the SPR. Methods: Ultrasonic microwave synergistic (UMS) extraction method was used to extractdehydroepiandrosterone (DHEA) in SPR. The extraction conditions were optimized by response surface methodology based on single factors. Results: The optimum extraction conditions were 1:25 (solid–liquid ratio), 300 W (microwave power), 30 min (extraction time), and 30°C (extraction temperature). The extraction yield of DHEA from SPR reached 117.25 μg/100 g. Conclusions: The advantage of UMS extractiontechnology is to make full use of the synergistic effect of ultrasound and microwave to improve extraction efficiency. Highlights: The technology provides an effective way to improve the DHEA extraction yield from the SPR in industrial production.
- Published
- 2018