核农学报2025，Vol.39Issue(5)：972-982,11.DOI:10.11869/j.issn.1000-8551.2025.05.0972
玫瑰花渣活性炭纯化玫瑰花色苷的工艺优化及降解动力学研究
Process Optimization and Degradation Dynamics of Rosette Residue Purified by Activated Carbon
摘要
Abstract
To investigate the adsorption and purification performance of rose pomace activated carbon(RP-AC)on rose pigmentosides,rose anthocyanin from rose flowers was isolated and purified using RP-AC as raw material.The optimal elution parameters of rose anthocyanin was detected by static and dynamic one-way tests.And the antioxidant capacity and degradation kinetics of rose anthocyanin purified were studied.The results showed that the optimal desorption rate of floridoside reached 71.64％under the ethanol concentration of 45％,pH value of 2 and desorption time of 6 h.The desorption rate of floridoside was 77.28％under the dynamic elution flow rate of 1 mL·min-1 and ethanol concentration of 55％.From the 1,1-diphenyl-2-trinitrophenylhydrazine(DPPH)radical scavenging assay,the antioxidant capacity was in the order of post-purification anthocyanoside＞Vc solution＞pre-purification anthocyanoside.The kinetic study of thermal degradation showed that the heating temperature,heating time,and pH value had a significantly effect on the molecular stability of anthocyanin.The values of pH and temperature were 2 and 40 ℃ respectively,showed the lowest degradation rate constant(0.031 8 h-1)and the largest half-life value(21.80 h),while the values of pH and temperature were 6 and 80 ℃ respectively,showed the highest degradation rate constant(0.379 2 h-1)and the smallest half-life value(1.83 h).The thermodynamic study showed that the degradation of rose anthocyanin was a non-spontaneous heat-absorbing reaction.This study can provide theoretical guidance for the isolation,purification,production,processing and preservation of natural anthocyanin.关键词
玫瑰花渣活性炭/纯化/玫瑰花色苷/抗氧化活性/降解动力学Key words
rose residue activated carbon/purification/rosettin/antioxidant activity/degradation kinetics引用本文复制引用
于亚丽,瞿德业,王波,董卫强,徐继雄,雷春妮..玫瑰花渣活性炭纯化玫瑰花色苷的工艺优化及降解动力学研究[J].核农学报,2025,39(5):972-982,11.基金项目
甘肃省重点研发项目(22YF7NK221),西北师范大学青年教师科研能力提升计划(NWNW-LKQN2020-05) （22YF7NK221）
