天然产物研究与开发 ›› 2023, Vol. 35 ›› Issue (增刊2): 84-92.

• 开发研究 • 上一篇    下一篇

超声辅助酶法提取漆蜡工艺优化和理化性质研究

丁林玲1,3,胡江苗3,刘洪均3,包   誉3,李晓珏2*,华   燕1*   

  1. 1西南林业大学 西南山地森林资源保育与利用教育部重点实验室,昆明 650224;2云南农业大学马克思主义学院,云南 昆明 650200;3中国科学院昆明植物研究所,昆明 650201
  • 出版日期:2023-12-28 发布日期:2023-12-11
  • 基金资助:
    国家重点研发计划子课题(2017YFD0201402)

Optimization of ultrasound-assisted enzymatic extraction of lacquer wax and its physicochemical property

DING Lin-ling1,3,HU Jiang-miao3, LIU Hong-jun3,BAO Yu3,LI Xiao-jue2*,HUA Yan1*   

  1. 1Key Laboratory for Forest Resources Conservation and Utilisation in the Southwest Mountains of China,Ministry of Education,Southwest Forestry University,Kunming 650224,China;2 College of Marxism,Yunnan Agricultural University,Kunming 650200,China;3Kunming Institute of Botany,Chinese Academy of Sciences,Kunming 650201,China
  • Online:2023-12-28 Published:2023-12-11

摘要:

本实验利用超声辅助联用酶法提取漆树籽中漆蜡并鉴定其中的脂肪酸成分,旨在实现漆树籽资源的综合利用。实验考察了加酶量、超声功率、超声时间、超声温度、酶解时间和pH等因素对漆蜡提取率的影响,进一步以响应面实验设计优化漆蜡的提取工艺参数。利用气相色谱-质谱联用分析漆蜡化学组成及相对含量,并测定其理化性质。结果表明,最佳工艺参数为:加酶量2.5%、酶解时间50 min、超声功率225 W、超声时间25 min、超声温度45 ℃、pH 4.5,在此条件下漆蜡的提取率为33.93%。漆蜡组成成分、理化性质与文献报道的基本一致,主要包括棕榈酸、油酸和硬脂酸等长链脂肪酸。实验证明利用超声辅助酶法提取得到的漆蜡,可为漆树籽的资源综合利用提供参考。

关键词: 漆, 漆蜡, 超声波辅助提取, 酶法, 响应面法, 气相色谱质谱联用

Abstract:

In this experiment,ultrasound-assisted enzyme method was used to extract lacquer wax from lacquer seeds,and the composition of its fatty acid composition was also identified in order to realize comprehensive utilization of lacquer seed resources.Firstly,this experiment has observed the effects of enzyme dosage,ultrasonic power,ultrasonic time,ultrasonic temperature,enzymatic hydrolysis time and pH on the extraction rate of lacquer wax,to further response the extraction technique parameters faced with experiment design optimization lacquer wax.Gas chromatography-mass spectrometer was used to analyze the compositions and relative contents of lacquer wax,and its physicochemical property were determination.The results showed that the optimum extraction parameters were as follows:enzyme dosage was 2.5%,enzymatic hydrolysis time was 50 min,ultrasonic power was 225 W,ultrasonic time was 25 min,ultrasonic temperature was 45 ℃,pH 4.5,enzymatic hydrolysis time was 50 min.Under this condition,the extraction rate of lacquer wax was 33.93%.The composition and physicochemical property of lacquer wax were basically consistent with those reported in literature,and the composition mainly included long chain fatty acids,such as palmitic acid,oleic acid and stearic acid.The experiment has proved that lacquer wax extracted by ultrasound-assisted enzymatic method could provide a reference for the resources comprehensive utilization of lacquer seed.

Key words: Toxicodendron vernicifluum, lacquer wax, ultrasonic-assisted extraction, enzymic method, response surface method, GC-MS

中图分类号:  TQ645.1 S565.9