FOOD SCIENCE ›› 2019, Vol. 40 ›› Issue (4): 286-291.doi: 10.7506/spkx1002-6630-20180125-320

• Processing Technology • Previous Articles     Next Articles

Extraction Optimization by Response Surface Methodology and HPLC Analysis of Organic Acids from Pixian Broad Bean Paste

YU Xiaoyu1, FANG Jiaxing1, XIANG Qin1, CHE Zhenming1, LIU Ping1, LIN Hongbin1,2,*   

  1. (1. College of Food and Bio-engineering, Xihua University, Chengdu 610039, China;2. College of Light Industry and Food Engineering, Sichuan University, Chengdu 610065, China)
  • Online:2019-02-25 Published:2019-03-05

Abstract: The extraction of organic acid from Pixian broad bean paste was optimized by one-factor-at-a-time method and response surface methodology based on central composite design. The optimum extraction conditions were obtained as follows: ethanol concentration 72%, solid-to-solvent ratio 1:21 (g/mL), and ultrasound irradiation for 37 min. The organic acids in six different samples were qualitatively and quantitatively analyzed by high performance liquid chromatography (HPLC). Citric acid was found to be the most abundant organic acid in Pixian broad bean paste, in the range of 4.0–6.5 mg/g, followed by malic acid (2.1–3.6 mg/g) and lactic acid (1.7–2.4 mg/g).

Key words: response surface methodology, high performance liquid chromatography, organic acid, Pixian broad bean paste

CLC Number: