Optimization of Ultrasonic Extraction of Polyphenol from Pinus Koraiensis Bark Using Response Surface Methodology

Abstract:

Ultrasonic technology was applied for phenolic compounds extraction from the Pinus koraiensis bark （PKB） and response surface methodology (RSM) was used to optimize the effects of processing parameters on phenolic compounds yields. When ultrasonic power 160W,three independent variables were ultrasonic extraction time (X1 20-40min), ratio of water to raw material (X2 1:20-1:40 g/mL)and ethanol concentration(X3 20％-60％), respectively.The optimal extraction conditions of phenolic compounds were determined as follows: Ultrasonic extraction time 30.61 min, ratio of water to raw material 30.79 mL/g and ethanol concentration 42.2%. Under these conditions, the experimental yield of phenolic compounds was 8.2409 ± 0.0648‰, well matched with the predicted models with the coefficients of determination (R2) of 0.9920, which was agreed closely with the predicted value (8.2963‰).

• Periodical: Advanced Materials Research (Volumes 183-185)
• Pages: 1874-1878
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.183-185.1874
• Online since: January 2011
• Authors: Ji Chang Wang, Zhen Yu Wang, Zi Luan Fan, Li Li Zuo, Shuang Qi Tian, Ke Li Yun
• Keywords: Phenolic Compound, Pinus koraiensis Bark, Response Surface

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