Welcome to Chinese Journal of Tropical Crops,

Chinese Journal of Tropical Crops ›› 2021, Vol. 42 ›› Issue (7): 2043-2051.DOI: 10.3969/j.issn.1000-2561.2021.07.031

• Post-harvest Treatment & Quality Safety • Previous Articles     Next Articles

Ultrasonic Assisted Extraction and Purification of Total Phenols from Macadamia Green Peel

ZHANG Ming1, MA Feiyue1, DU Liqing1,*(), LI Ya1, HUANG Haolun2, TU Xinghao1, CHEN Mei1   

  1. 1. South Subtropical Crops Research Institute, Chinese Academy of Tropical Agriculture Sciences / Key Laboratory of Tropical Fruit Biology, Ministry of Agriculture & Rural Affairs, Zhanjiang, Guangdong 524091, China
    2. Institute of Scientific and Technical Information, Chinese Academy of Tropical Agriculture Sciences, Haikou, Hainan 571101, China
  • Received:2020-09-27 Revised:2020-11-27 Online:2021-07-25 Published:2021-08-05
  • Contact: DU Liqing

Abstract:

The ultrasonic-assisted extraction of the total phenols from macadamia green peel and the purification with D101 macrospores resin were optimized to promote the utilization of macadamia green peel resources. The optimal extraction parameters to obtain the highest total phenols were ethanol concentration of 30%, solid-liquid ratio of 1 : 50 g/mL, extraction temperature of 70 ℃, extraction time of 24 min, ultrasonic power of 250 W. And the yield of total phenols was (1836.21±32.51)mg/100 g when conducted at the optimal conditions. The results of purification process presented that the adsorption process conditions were as follows: total phenols concentration of sample 2 mg/mL, sample solution flow velocity 2 BV/h, sample volume 11.50 BV, and the desorption process could be gradient eluted by 10%, 20%, 30% ethanol of 6 BV at 3 BV/h, which gave the desorption ratio of 81.41% and purity of 57.64%, 72.97%, 65.54%, respectively. This present study would provide a theoretical reference for the further application of macadamia green peel phenols.

Key words: macadamia green peel, ultrasonic-assisted, total phenols, purification

CLC Number: