植物研究 ›› 2025, Vol. 45 ›› Issue (3): 433-446.doi: 10.7525/j.issn.1673-5102.2025.03.013

• 研究论文 • 上一篇    

不同植物来源内生菌提取物抗氧化、抗紫外及抑菌功能评价

邹坤林1,2, 姜厶源1,2, 魏亚静1,2, 张顺1,2, 李鹏3, 尹静1,2()   

  1. 1.东北林业大学东北盐碱植被恢复与重建教育部重点实验室,哈尔滨 150040
    2.东北林业大学生命科学学院,哈尔滨 150040
    3.黑龙江省科学院高技术研究院,哈尔滨 150010
  • 收稿日期:2024-11-06 出版日期:2025-05-20 发布日期:2025-05-23
  • 通讯作者: 尹静 E-mail:yinjing20135@163.com
  • 作者简介:邹坤林(2004—),女,本科生,主要从事植物生物技术与次生代谢调控研究。
  • 基金资助:
    黑龙江省自然科学基金项目(ZD2023C004);东北林业大学本科创新项目(202310225164);黑龙江省省属科研院所基本科研业务费项目(ZNBZ2023GJS06);东北林业大学本科教育教学改革项目(DGYGJ2022-02)

Evaluation of Antioxidant, Anti-ultraviolet Radiation, and Antibacterial Functions of Endophytic Extracts from Different Plant Sources

Kunlin ZOU1,2, Siyuan JIANG1,2, Yajing WEI1,2, Shun ZHANG1,2, Peng LI3, Jing YIN1,2()   

  1. 1.Key Laboratory of Saline-alkali Vegetation Ecology Restoration,Ministry of Education,Northeast Forestry University,Harbin 150040
    2.College of Life Sciences,Northeast Forestry University,Harbin 150040
    3.Institute of High Technology,Heilongjiang Academy of Sciences,Harbin 150010
  • Received:2024-11-06 Online:2025-05-20 Published:2025-05-23
  • Contact: Jing YIN E-mail:yinjing20135@163.com

摘要:

该研究以不同植物来源的20株内生真菌为材料,检测不同菌株发酵提取物抗氧化、抑菌、抗紫外线辐射的活性及次生代谢产物含量,以期评价其在日化产品中的应用潜力。利用酶标仪比色法测定不同菌株发酵液和菌丝提取物中ABTS(2,2'-联氮双(3-乙基苯并噻唑啉-6-磺酸)二铵盐)、DPPH(1,1-二苯基-2-三硝基苯肼)自由基清除率;利用FRAP法(铁离子还原/抗氧化能力法)测定其对铁离子的还原能力;利用牛津杯法检测不同菌株的抑菌特性。结果显示:菌株XY1、YZ6、ZJ29、XG4-2和ZBS49的发酵液提取物表现出强抗氧化力,其中,ZJ29发酵液提取物DPPH自由基清除率最高,为93.62%;XY1发酵液提取物ABTS自由基清除率最高,达到90.47%。ZJ29发酵液提取物ABTS自由基清除率高于50%,且FRAP值最高,为2 974.55 μmolL-1。ZJ29和ZL18-1菌丝提取物酪氨酸酶抑制能力分别为60.62%和98.10%;ZJ29发酵液提取物酪氨酸酶抑制能力最强,为69.78%;ZJ29发酵液提取物对金黄色葡萄球菌(Staphylococcus aureus)的抑制效率最高。YZ6、ZJ29发酵液提取物对UVA及UVB紫外线辐射吸收能力较强,2个菌株对UVB的吸光度均达2.8以上,YZ6、ZJ29发酵液提取物对UVA吸光度分别达到2.0和1.5以上;YZ6菌丝提取物也表现出对UVB、UVA强的抵抗能力,吸光度为1.5~2.5。YH3、XY1菌丝多酚和黄酮含量较高,多酚质量分数分别为18.47、15.36 mgg-1,黄酮质量分数分别为4.35、7.15 mgg-1。ZL23、ZJ29三萜含量较高,分别为16.79、11.20 mgg-1。ZJ29提取物的抑菌、抗紫外线辐射、抗氧化功能均表现良好,综合能力最强,其次为YZ6和XY1。上述功能菌株提取物在日化产品开发中具有重要的应用潜力。

关键词: 内生真菌, 次生代谢产物, 抗氧化, 抗紫外线辐射, 抑菌

Abstract:

This study evaluated the antioxidant, antimicrobial, UV radiation resistance properties, and secondary metabolite content of fermented extracts from 20 endophytic fungi of diverse plant origins to assess their potential in cosmetic applications. ABTS and DPPH radical scavenging rates of fermentation broths and mycelial extracts were measured using microplate reader colorimetry, while ferric ion reduction capacity was determined via FRAP assay. Antimicrobial activity was assessed using the Oxford cup method. The results indicated strong antioxidant activity in fermentation broths of strains XY1, YZ6, ZJ29, XG4-2, and ZBS49. ZJ29 exhibited the highest DPPH radical scavenging rate (93.62%), while XY1 showed the highest ABTS radical scavenging rate (90.47%). ZJ29 fermentation broth also demonstrated an ABTS radical scavenging rate >50% and the highest FRAP value (2 974.55 μmolL-¹). Tyrosinase inhibition by ZJ29 and ZL18-1 mycelial extracts reached 60.62% and 98.10%, respectively, with ZJ29 fermentation broth showing the strongest inhibition(69.78%). ZJ29 fermentation broth exhibited the highest inhibition against Staphylococcus aureus. The UVA and UVB absorbance of YZ6 and ZJ29 was higher than 2.8, and the UVA absorbance of YZ6 and ZJ29 was higher than 2.0 and 1.5, respectively. YZ6 mycelial extract also showed strong resistance to UVB and UVA, with absorbance of 1.5-2.5. YH3 and XY1 mycelial extracts contained the higher polyphenol (18.47 and 15.36 mgg-¹) and flavonoid (4.35 and 7.15 mgg-¹) content, respectively. ZL23 and ZJ29 had the higher triterpene content (16.79 and 11.20 mgg-¹, respectively). In conclusion, ZJ29 mycelial extracts had superior antimicrobial, UV radiation resistance, and antioxidant activities, followed by YZ6 and XY1, highlighting their significant potential for daily chemical products.

Key words: endophytic fungi, secondary metabolites, antioxidation, anti-ultraviolet radiation, bacteriostasis

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