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中国农学通报 ›› 2025, Vol. 41 ›› Issue (8): 133-139.doi: 10.11924/j.issn.1000-6850.casb2024-0534

• 食品·营养·检测·安全 • 上一篇    下一篇

台湾香檬叶总黄酮提取工艺及抗氧化活性筛选

王杰1(), 余晓夏2, 何建章1(), 陈建土1, 吴美芳1   

  1. 1 福建省亚热带植物研究所/福建省亚热带植物生理生化重点实验室,福建厦门 361006
    2 福建中医药大学,福州 350122
  • 收稿日期:2024-08-15 修回日期:2024-11-27 出版日期:2025-03-15 发布日期:2025-03-14
  • 通讯作者:
    何建章,男,1985年出生,福建漳州人,助理研究员,硕士,研究方向:植物经济作物研发。通信地址:361006 福建省厦门市湖里区嘉禾路800号中试基地二楼 福建省亚热带植物研究所,E-mail:
  • 作者简介:

    王杰,男,1986年出生,河南南阳人,助理研究员,硕士,研究方向:植物经济作物研发。通信地址:361006 福建省厦门市湖里区嘉禾路800号中试基地二楼 福建省亚热带植物研究所,E-mail:

  • 基金资助:
    厦门市重大科技计划项目“活性筛选及药效物质基础研究”(3502Z2021005)

Extraction Process and Antioxidant Activities Screening of Total Flavonoids from Citrus depressa Hayat Leaves

WANG Jie1(), YU Xiaoxia2, HE Jianzhang1(), CHEN Jiantu1, WU Meifang1   

  1. 1 Fujian Institute of Subtropical Botany, Fujian Key Laboratory of Physiology and Biochemistry for Subtropical Plant, Xiamen Fujian 361006
    2 Fujian University of Traditional Chinese Medicine, Fuzhou 350122
  • Received:2024-08-15 Revised:2024-11-27 Published:2025-03-15 Online:2025-03-14

摘要: 为了优化台湾香檬叶总黄酮的提取工艺,并研究其抗氧化活性。本研究以总黄酮提取率为评价指标,单因素试验考察提取溶媒、料液比、提取时间及提取次数对台湾香檬叶总黄酮提取率的影响,通过正交试验进一步优化提取条件;并测定所得提取物对DPPH自由基、ABTS自由基和羟自由基的清除能力及其还原能力。结果表明:台湾香檬叶总黄酮最佳提取工艺为提取溶媒水、料液比1:25 g/mL、回流提取2次、每次提取1 h,得到的台湾香檬叶总黄酮得率为(32.60±2.16) mg/g。台湾香檬叶提取物对DPPH、羟自由基和ABTS的IC50分别为12.03、105.79、1.10 μg/mL,还原能力较强。该提取工艺稳定、可靠,适用于台湾香檬叶总黄酮的提取,所得提取物可作为一种新型的天然抗氧化剂,应用于功能性食品领域。

关键词: 台湾香檬叶, 总黄酮, 提取工艺, 正交试验, 抗氧化

Abstract:

This study aimed to optimize the extraction process of total flavonoids from Citrus depressa Hayat leaves (CDHL), and investigate their antioxidant activities. Total flavonoids yield was used as evaluation index, the effects of extraction solvent, solid-liquid ratio, extraction time, and extraction frequency on the total flavonoids yield from CDHL were investigated by single-factor experiments. The extraction condition was optimized by orthogonal experiment. The antioxidant activity of total flavonoids was studied by measuring the removal capacity of DPPH, ABTS, hydroxyl radicals and the reducing capacity were investigated in vitro. The best extraction process conditions for total flavonoids from CDHL were distilled water reflux for 1 h and 2 times, with liquid ratio of 1:25 (g/mL). The mean extraction of total flavonoids under this condition was (32.60±2.16) mg/g. The IC50 of DPPH, ABTS and hydroxyl radicals were 12.03, 105.79 and 1.10 μg/mL respectively, and its reducing ability was strong. This extraction process was stable and reliable for extracting total flavonoids from CDHL. The total flavonoids from CDHL can be used as a novel natural antioxidant in functional foods.

Key words: Citrus depressa Hayat leaves, total flavonoids, extraction technology, orthogonal test, antioxidation