食品科学 ›› 2018, Vol. 39 ›› Issue (8): 141-148.doi: 10.7506/spkx1002-6630-201808023

• 成分分析 • 上一篇    下一篇

海南无刺蜂蜂蜜中多酚类物质成分分析及其抗氧化、抗炎活性评价

梁馨文1,李强强1,高景林2,王凯1,吴黎明1,*   

  1. (1.中国农业科学院蜜蜂研究所,北京 100093;2.中国热带农业科学院环境与植物保护研究所,海南?海口 570100)
  • 出版日期:2018-04-25 发布日期:2018-04-17
  • 基金资助:
    中国农业科学院科技创新工程项目(CAAS-ASTIP-2016-IAR);国家现代农业(蜂)产业技术体系建设专项(CARS-45)

Polyphenic Constituents and Antioxidant and Anti-Inflammatory Activities of Stingless Bee Honey from Hainan

LIANG Xinwen1, LI Qiangqiang1, GAO Jinglin2, WANG Kai1, WU Liming1,*   

  1. (1. Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing 100093, China; 2. Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 570100, China)
  • Online:2018-04-25 Published:2018-04-17

摘要: 以海南无刺蜂蜂蜜及其多酚类提取物为研究对象,分别测定分析无刺蜂蜂蜜的理化成分和多酚物质,研究其抗氧化和抗炎活性。通过液相色谱-串联四极杆飞行时间质谱分析多酚类成分,并采用福林-酚法和硝酸铝比色法测定多酚类提取物总酚酸和总黄酮含量。采用1,1-二苯基-2-三硝基苯肼(1,1-diphenyl-2-picrylhydrazyl,DPPH)自由基、2,2’-联氮-双-(3-乙基苯并噻唑啉-6-磺酸)二铵盐自由基(2,2’-azinobis-(3-ethylbenzthiazoline-6-sulphonate) radical,ABTS+·)清除实验和铁离子还原力实验评价多酚类提取物的体外抗氧化活性,并采用细菌脂多糖(lipopolysaccharides,LPS)诱导的RAW 264.7细胞体外炎症模型,探究多酚类提取物的抗炎活性。结果显示,无刺蜂蜂蜜水分质量分数为(26.3±0.1)%,pH 3.7±0.2,蛋白质含量为(628.2±9.0)mg/kg,淀粉酶值为(19.6±0.2)mL/(g·h),总糖质量分数为(46.7±6.0)%,包括果糖(21.0±3.7)%、葡萄糖(24.9±2.2)%、蔗糖(0.8±0.1)%;多酚类提取物的总酚酸和总黄酮含量分别为(96.6±0.4)μg CAE/g和(16.1±0.3)μg QE/g;多酚类提取物的DPPH自由基和ABTS+?清除能力IC50值分别为(435.1±0.4)、(423.0±0.3)μg/mL,铁离子还原力为(0.6±0.02)μmol Trolox/g;在体外抗炎实验中,多酚类提取物能显著抑制由LPS诱导的RAW 264.7细胞NO的释放,并显著抑制促炎症基因iNOS、IL-1β、IL-6和MCP-1的表达,显著增强抗氧化基因HO-1的表达,并呈剂量相关性。综上所述,海南无刺蜂蜂蜜营养成分丰富,富含酚酸和黄酮类物质,且具有很强的抗氧化和抗炎能力,具有良好的开发利用价值。

关键词: 无刺蜂蜂蜜, 成分分析, 抗炎, 抗氧化

Abstract: This study aimed to analyze the physicochemical properties and polyphenolic composition and to evaluate the antioxidant and anti-inflammatory activities of stingless bee honey (SBH) from Hainan, China. The polyphenolic compounds were analyzed by liquid chromatography-quadrupole time-of-flight mass spectrometry (LC-Q-TOF-MS). The contents of total phenolics and total flavonoids in SBH extract were determined by the Folin-Ciocalteu method and AlNO3 colorimetry, respectively. The antioxidant activity of SBH was assayed in vitro by using 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging, 2,2’-azinobis-(3-ethylbenzthiazoline-6-sulphonate radical) (ABTS+·) scavenging and reducing power methods. Its anti-inflammatory effect was investigated using lipopolysaccharide (LPS)-stimulated RAW 264.7 cells. Our results showed that SBH possessed the physicochemical properties: moisture content (26.3 ± 0.1)%, pH 3.7 ± 0.2, protein content (628.2 ± 9.0) mg/kg, amylase activity (19.6 ± 0.2) mL/(g·h), fructose content (21.0 ± 3.7)%, glucose content (24.9 ± 2.2)%, sucrose content (0.8 ± 0.1)%. The contents of total phenolics and total flavonoids in the extract were (96.6 ± 0.4) μg CAE/g and (16.1 ± 0.3) μg QE/g, respectively. The IC50 values of the extract for scavenging of DPPH and ABTS radicals were (435.1 ± 0.4) and (423.0 ± 0.3) μg/mL, respectively, and its ferric reducing power was (0.6 ± 0.02) μmol Trolox/g. SBH exhibited potent concentration-dependent anti-inflammatory effects by inhibiting nitric oxide (NO) release from LPS-stimulated RAW 264.7 cells, markedly decreasing the mRNA expression of iNOS, IL-1β, IL-6 and MCP-1, and significantly increasing the mRNA expression of HO-1. These results suggest that SBH was rich in nutrients, phenolic acids and flavonoids, and had potent antioxidant and anti-inflammatory properties, making it very promising.

Key words: stingless bee honey, food composition analysis, antioxidant, anti-inflammatory

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