湖北农业科学 ›› 2024, Vol. 63 ›› Issue (5): 162-167.doi: 10.14088/j.cnki.issn0439-8114.2024.05.029

• 贮藏·加工 • 上一篇    下一篇

超声波-盐析辅助蒸馏提取黑胡椒精油方法优化及活性分析

谭子祎, 曾佳如, 李萌   

  1. 中南林业科技大学生命科学与技术学院,长沙 410004
  • 收稿日期:2022-08-15 出版日期:2024-05-25 发布日期:2024-06-04
  • 通讯作者: 李 萌(1980-),男,湖北荆门人,副教授,博士,主要从事生物工程研究工作,(电话)13319516033(电子信箱)limeng0422@foxmail.com。
  • 作者简介:谭子祎(1998-),女,湖南邵阳人,硕士,主要从事生物资源转化与利用研究工作,(电话)17369323060(电子信箱)995909067@qq.com;共同第一作者,曾佳如(2000-),女,湖南长沙人,本科,研究方向为生物工程,(电话)18307388377(电子信箱)563838217@qq.com;
  • 基金资助:
    湖南省教育厅重点研究项目(20A521); 湖南省自然科学基金项目(2021JJ31144); 中南林业科技大学校级研究生创新项目(2022CX02068)

Optimization of ultrasonic-assisted salting-out assisted extraction of essential oil from Piper nigrum L. and its activity analysis

TAN Zi-yi, ZENG Jia-ru, LI Meng   

  1. College of Life Science and Technology, Central South University of Forestry and Technology, Changsha 410004, China
  • Received:2022-08-15 Published:2024-05-25 Online:2024-06-04

摘要: 采用超声波-盐析辅助水蒸气蒸馏法提取黑胡椒(Piper nigrum L.)精油,利用响应面法确定了最佳的液料比、超声时间、NaCl浓度等提取参数。结果表明,超声波辅助蒸馏法提取黑胡椒精油的最佳条件参数为液料比17∶1、超声时间13 min、NaCl浓度2.4%。在此条件下黑胡椒精油的得率为1.79%。对使用此方法获得的黑胡椒精油进行了抗氧化和抑菌活性检测,结果表明提取物具有一定的抗氧化能力,且对ABTS的清除能力远强于对DPPH的清除能力。同时,提取物对金黄色葡萄球菌和青枯假单胞菌均具有较强的生长抑制功能。

关键词: 黑胡椒(Piper nigrum L.), 精油, 超声波, 水蒸气蒸馏, 抗氧化, 抑菌

Abstract: The ultrasonic-assisted salting-out assisted steam distillation method was used to extract essential oil from Piper nigrum L.. Response surface methodology was used to determine the optimal extraction parameters such as liquid-solid ratio, ultrasonic time and NaCl concentration. The results showed that the optimal extraction condition of essential oil from Piper nigrum L. by ultrasonic-assisted distillation method was the liquid-solid ratio of 17∶1, ultrasonic time of 13 min, and NaCl concentration of 2.4%. Under this condition, the extraction yield of Piper nigrum L. essential oil was 1.79%. The extracts obtained by this method were tested for antioxidant and antibacterial activities. The results showed that Piper nigrum L. essential oil had a certain antioxidant capacity, and its scavenging ability on ABTS was much stronger than that on DPPH. The extract also showed strong growth inhibition against both Staphylococcus aureus and Pseudomonas solanacearum.

Key words: Piper nigrum L., essential oils, ultrasound, steam distillation, antioxidant, bacteriostatic

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