Title :
Optimization of Microwave-Assisted Extraction Technology of Flavonoids from Solid Wastes (Hawthorn Seed)
Author :
Pan, Guangyan ; Qiao, Julin ; Zhu, Chuanhe ; Wang, Fang
Author_Institution :
Coll. of Food Sci. & Eng., Shandong Agric. Univ., Taian, China
Abstract :
The microwave-assisted extraction of total Flavonoids from Solid wastes (Hawthorn seed) was optimized by response surface methodology. Important factors and their ranges were investigated using Plackett-Burman. Steepest ascent path was adopted to approach the optimal region, and then the Box-Behnken design and response surface analysis were used to determine the optimal levels of the main factors. The optimal conditions for extraction was microwave intensity 1886.5MHz, radiation time 10 min, extraction temperature 93.5°C, extraction time 5.7h, solid-liquid ratio of 1:24, 54% ethanol solution. Under this condition, the extraction yield of flavonoids from Hawthorn seed reached 17.57±0.011mg/g. Compared with conventional reflux extraction, the extraction rate increased by 29%.
Keywords :
agricultural products; gradient methods; microwave technology; optimisation; response surface methodology; waste handling; Box-Behnken design; Hawthorn seed; ethanol solution; frequency 1886.5 MHz; microwave-assisted flavonoids extraction technology; response surface methodology; solid wastes; steepest ascent path; temperature 93.5 degC; time 10 min; time 5.7 h; Analysis of variance; Electromagnetic heating; Ethanol; Microwave theory and techniques; Optimization; Production; Response surface methodology; Solid wastes; Total flavonoids; hawthorn seeds;
Conference_Titel :
Computer Distributed Control and Intelligent Environmental Monitoring (CDCIEM), 2011 International Conference on
Conference_Location :
Changsha
Print_ISBN :
978-1-61284-278-3
Electronic_ISBN :
978-0-7695-4350-5
DOI :
10.1109/CDCIEM.2011.172
