食品科学 ›› 2017, Vol. 38 ›› Issue (16): 115-121.doi: 10.7506/spkx1002-6630-201716018

• 成分分析 • 上一篇    下一篇

UPLC-DAD/ESI-TOF-MS鉴定黑脉羊肚菌多酚化合物

石芳,廖霞,卢可可,郑少杰,肖星凝,吴素蕊,明建   

  1. (1.西南大学食品科学学院,重庆 400715;2.中华全国供销合作总社昆明食用菌研究所,云南?昆明 650223;3.重庆市特色食品工程技术研究中心,重庆 400715)
  • 出版日期:2017-08-25 发布日期:2017-08-18
  • 基金资助:
    国家自然科学基金面上项目(31471576);中央高校基本科研业务费专项(XDJK2016E113;XDJK2015D035);云南省科技厅科技创新人才计划项目(2008OC008);重庆市特色食品工程技术研究中心能力提升项目(cstc2014pt-gc8001)

Analysis of Phenolic Compounds in Morchella angusticeps Peck by Ultra Performance Liquid Chromatography-Diode Array Detector/Electrospray Ionization-Time of Fight-Mass Spectrometry

SHI Fang, LIAO Xia, LU Keke, ZHENG Shaojie, XIAO Xingning, WU Surui, MING Jian,   

  1. (1. College of Food Science, Southwest University, Chongqing 400715, China;2. Kunming Edible Fungi Institute, All China Federation of Supply and Marketing Cooperatives, Kunming 650223, China;3. Chongqing Engineering Research Center for Special Food, Chongqing 400715, China)
  • Online:2017-08-25 Published:2017-08-18

摘要: 以黑脉羊肚菌为原料,分离提取羊肚菌多酚(游离酚和结合酚),对提取物中酚类物质的含量及抗氧化活 性进行研究,并采用超高效液相色谱-二极管阵列检测器/电喷雾飞行时间质谱对黑脉羊肚菌游离酚和结合酚的组分 进行鉴定。结果表明,黑脉羊肚菌多酚主要为游离酚,且游离酚的DPPH自由基清除率、还原力及氧自由基吸收能 力都显著强于结合酚(P<0.05),而两者清除ABTS+·能力相当。从黑脉羊肚菌多酚中鉴定出15 种组分,分别是 没食子酸、焦性没食子酸、原儿茶酸、对羟基苯甲酸、儿茶素、咖啡酸、绿原酸、荭草素、芦丁、金丝桃苷、白藜 芦醇、木犀草素、槲皮素、肉桂酸、阿魏酸,游离酚提取物有15 种组分,结合酚提取物有14 种组分。

关键词: 黑脉羊肚菌, 多酚, 超高效液相色谱-电喷雾飞行时间质谱, 抗氧化活性

Abstract: Free and bound phenolics from Morchella angusticeps Peck were separately extracted and analyzed by ultra performance liquid chromatography-diode array detector/electrospray ionization-time of fight-mass spectrometry (UPLC-DAD/ESI-TOF-MS). The antioxidant activities of the phenolic extracts were assessed. The results showed that phenolics were present mainly in the free form in Morchella angusticeps Peck. The DPPH (1,1-dipheny1-2-picryl-hydrazyl) scavenging capacity, reducing power and oxygen radical absorption capacity (ORAC) value of free phenolics from Morchella angusticeps Peck were significantly higher than those of bound ones (P < 0.05), but no significant difference in ABTS+· (2,2’-amino-di (3-ethyl-benzothiazoline sulphonic acid-6) ammonium salt) scavenging capacity existed between free and bound phenolics. A total of 15 polyphenols in Morchella angusticeps Peck, including gallic acid, pyrogallic acid, protocatechuic acid, p-hydroxybenzoic acid, catechin, caffeic acid, chlorogenic acid, orientin, rutin, hyperoside, resveratrol, luteolin, quercetin, cinnamic acid and ferulic acid, were identified. We identified 15 and 14 components in the free and bound phenolic extracts, respectively.

Key words: Morchella angusticeps Peck, polyphenol, UPLC-DAD/ESI-TOF-MS, antioxidant activities

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