浙江农业学报 ›› 2024, Vol. 36 ›› Issue (10): 2328-2337.DOI: 10.3969/j.issn.1004-1524.20230906

• 食品科学 • 上一篇    下一篇

菜蓟多酚提取工艺及其减脂功效

谭权钦1,2(), 陶文扬2, 周万怡2, 邢建荣2, 杨颖2,*(), 孙全1,*()   

  1. 1.重庆邮电大学 生命健康信息科学与工程学院,重庆 400065
    2.浙江省农业科学院 食品科学研究所,浙江 杭州 310021
  • 收稿日期:2023-07-27 出版日期:2024-10-25 发布日期:2024-10-30
  • 作者简介:谭权钦(1999—),男,重庆潼南人,硕士研究生,主要从事果蔬加工研究。E-mail:tanqq7013@163.com
  • 通讯作者: *孙全,E-mail:sunquan@cqupt.edu.cn;杨颖,E-mail:ying_yang4535F@sina.com
  • 基金资助:
    浙江省重点研发计划(2020C02034)

Extraction process and lipid reducing effect of artichoke polyphenols

TAN Quanqin1,2(), TAO Wenyang2, ZHOU Wanyi2, XING Jianrong2, YANG Ying2,*(), SUN Quan1,*()   

  1. 1. School of Life Health Information Science and Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
    2. Institute of Food Science, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
  • Received:2023-07-27 Online:2024-10-25 Published:2024-10-30

摘要:

为促进精准营养产品的研发与资源利用,对菜蓟多酚的提取工艺及其减脂功效进行研究与评价。结果表明,干燥方式对菜蓟内苞片、外苞片和茎中多酚、黄酮的提取量及其抗氧化活性具有显著(P<0.05)影响,以冷冻干燥的效果最佳。经单因素试验和正交试验优化,获得的最优提取条件为乙醇体积分数40%、提取温度80 ℃、料液比1∶30。本试验条件下,从内苞片中提取的多酚具有最高的体外脂肪酶抑制活性与胆酸钠结合率,脂肪酶抑制率达37.6%,与阳性对照药物奥利司他接近。高脂小鼠模型明确从菜蓟茎、内苞片、外苞片中提取的多酚具有减脂效果,其中,以从内苞片中提取的多酚效果最佳,有助于减小脂肪细胞体积,降低肝脏脂肪堆积,上述指标及小鼠体重增加量、附睾脂肪系数与对照组均无显著差异。菜蓟多酚具有减脂功效,应用潜力较好。

关键词: 菜蓟, 多酚, 提取, 减脂

Abstract:

In order to advance the research and development of precision nutrition products and resource utilization, the extraction technology of polyphenols from artichoke was investigated, as well as the the assessment of its lipid reduction effect. The results revealed that the drying method significantly (P<0.05) impacted the extraction yield and antioxidant activity of polyphenols and flavonoids from inner bract, outer bract, and stems of artichoke, with freeze-drying demonstrating the most favorable outcome. The optimal extraction conditions were determined as 40% ethanol by volume fraction, an extraction temperature of 80 ℃, and a solid-liquid ratio of 1∶30. Under these experimental conditions, polyphenols extracted from the inner bracts exhibited potent in vitro lipase inhibitory activity as well as sodium cholate binding rate, achieving a lipase inhibitory rate of 37.6%, close to that of the positive control drug orlistat. Furthermore, in a high-fat mouse model, polyphenols extracted from the stem, inner bract, and outer bract of artichoke demonstrated lipid-reducing effects. Among them, those extracted from inner bracts showed superior efficacy in reducing fat cell volume and liver fat accumulation, as there was no significant differences observed in body weight gain or epididymal fat coefficient compared with the control group. In conclusion, the artichoke polyphenols could effectively reduce lipid with promising application potential.

Key words: artichoke, polyphenol, extraction, lipid-lowering

中图分类号: