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2012•Journal of Beijing Technology and Business UniversityRequires access

Optimization of Ultrasonic-assisted Extraction of Oligosaccharide from Lotus Seeds Using Response Surface Methodology

Baodong Zheng

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Abstract

Ultrasonic-assisted extraction(UAE) of oligosaccharides from lotus(Nelumbo nucifera Gaertn.) seeds(LSO) was studied in this paper.The three parameters,ultrasonic power(300～500 W),solid to liquid ratio(g/mL) 1∶15～1∶25,and extraction time(30～50 min),were optimized using the Box-Behnkens Design(BBD) with a quadratic regression model built by Response Surface Methodology(RSM).The order of three parameters on the LSO yield was as follows: solid to liquid ratioultrasonic powerextraction time.The highest oil yield,1.13%(w/w),was obtained under optimal conditions for ultrasonic power,solid to liquid ratio,and extraction time at 320 W,1∶25,and 48 min,respectively.The LSO yield extracted by UAE was significantly higher than that by using hot water extraction(HWE: 68.18%) and microwave-assisted extraction(MAE: 29.88%).

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What this paper is about

Ultrasonic-assisted extraction(UAE) of oligosaccharides from lotus(Nelumbo nucifera Gaertn.) seeds(LSO) was studied in this paper.The three parameters,ultrasonic power(300～500 W),solid to liquid ratio(g/mL) 1∶15～1∶25,and extraction time(30～50 min),were optimized using the Box-Behnkens Design(BBD) with a quadratic regression model built by Response Surface Methodology(RSM).The order of three parameters on the LSO yield was as follows: solid to liquid ratioultrasonic powerextraction time.The highest oil yield,1.13%(w/w),was obtained under optimal conditions for ultrasonic power,solid to liquid ratio,and extraction time at 320 W,1∶25,and 48 min,respectively.The LSO yield extracted by UAE was significantly higher than that by using hot water extraction(HWE: 68.18%) and microwave-assisted extraction(MAE: 29.88%).

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Available abstract

Ultrasonic-assisted extraction(UAE) of oligosaccharides from lotus(Nelumbo nucifera Gaertn.) seeds(LSO) was studied in this paper.The three parameters,ultrasonic power(300～500 W),solid to liquid ratio(g/mL) 1∶15～1∶25,and extraction time(30～50 min),were optimized using the Box-Behnkens Design(BBD) with a quadratic regression model built by Response Surface Methodology(RSM).The order of three parameters on the LSO yield was as follows: solid to liquid ratioultrasonic powerextraction time.The highest oil yield,1.13%(w/w),was obtained under optimal conditions for ultrasonic power,solid to liquid ratio,and extraction time at 320 W,1∶25,and 48 min,respectively.The LSO yield extracted by UAE was significantly higher than that by using hot water extraction(HWE: 68.18%) and microwave-assisted extraction(MAE: 29.88%).

Key concepts: Response surface methodology, Extraction (chemistry), Ultrasonic sensor, Yield (engineering), Chromatography, Central composite design, Materials science, Chemistry

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