人参属花茶中酚类物质的提取动力学与体外抗氧化活性
人参属花茶中酚类物质的提取动力学与体外抗氧化活性
DOI:
作者单位:
(上海理工大学健康科学与工程学院 上海 200093)
基金项目:
国家重点研发计划项目(2024YFD2100700)
Extraction Kinetics for Phenolic Compositions and in Vitro Antioxidant Activities of Panax Flowers Teas
Author:
QIAO JunruQIAO Junru
School of Health Science and Engineering， University of Shanghai for Science and Technology， Shanghai 200093
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AI Lianzhong
School of Health Science and Engineering， University of Shanghai for Science and Technology， Shanghai 200093
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XIA Yongjun
School of Health Science and Engineering， University of Shanghai for Science and Technology， Shanghai 200093
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LI Peikang
School of Health Science and Engineering， University of Shanghai for Science and Technology， Shanghai 200093
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LAI Phoency
School of Health Science and Engineering， University of Shanghai for Science and Technology， Shanghai 200093
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Affiliation:
(School of Health Science and Engineering， University of Shanghai for Science and Technology， Shanghai 200093)
摘要 | | 访问统计 | 参考文献 [32] | | 引证文献 || 文章评论摘要:
比较人参花和三七花花茶中多酚类物质的提取动力学与粉碎处理效果，解析其体外抗氧化活性的浓度参数，并与槲皮素和常见抗氧化剂(DPPH、ABTS+、OH-)相比较。结果表明:三七花花茶富含总酚和总黄酮，得率分別为7.24，11.01 mg/g，显著高于人参花茶(分别为4.92，0.99 mg/g)。两花茶多酚的溶出过程符合菲克一级扩散动力学模型，三七花多酚的提取速率为人参花的2~3倍。粉碎处理可显著提高三七花茶的总酚含量及提取速率，然而对人参花无显著影响。清除自由基的半数抑制浓度(IC50)越低表示抗氧化能力越高，人参花茶和三七花茶清除DPPH 的IC50值(IC50，DPPH)分别为48.10，40.54 μmol/L(以没食子酸当量计)；两者清除ABTS+的能力相同(IC50，ABTS = 137 μmol/L)；然而人参花茶清除OH-的能力(IC50，OH = 74.92 μmol/L)略高于三七花茶(84.84 μmol/L)。相较于槲皮素(IC50，DPPH、IC50，ABTS及IC50，OH分别为25.67，135.06，146.88 μmol/L)，两花茶清除DPPH自由基的能力约为槲皮素的一半，清除ABTS+的能力与槲皮素相似，而清除OH-的能力约为槲皮素的2倍。两花茶清除DPPH自由基的能力高于维生素C(VC)和叔丁基对苯二酚(TBHQ)，清除ABTS+和OH-的能力明显高于VC、TBHQ和Trolox。综上，人参花茶和三七花茶的体外抗氧化活性相近似，对水相的抗氧化活性(清除ABTS+和OH-)明显高于槲皮素、ABTS+和OH-。研究成果为人参属花茶产品的加工及研发提供了理论支撑。
Abstract:
This study was to compare the extraction kinetics for phenolic compositions and pulverization effects for Panax ginseng flower (PGF) and Panax notoginseng flower (PNF) teas， and to elucidate the concentration parameters of in vitro antioxidant activities of the extracts in reference to quercetin and commonly-used antioxidants. The results of chemical analysis display that PNF extracts enriched with total phenolics (TPC) and total flavonoids contents (TFC)， yielding 7.24， 11.01 mg/g， respectively， significantly greater than those of PGF extracts (4.92， 0.99 mg/g， respectively). The solubilization process of the phenolic compositions for both varieties of teas followed Fick's first-order diffusion kinetic model， where the extraction rate constants for PNF were 2-3 folds of those of PGF. Pulverization treatment improved significantly the TPC and extraction rate for PNF， but insignificantly in the case of PGF. It is known that the lower the half-inhibition concentration (IC50) for scavenging free radicals， the greater was the antioxidant activity. PGF and PNF teas showed an IC50 for scavenging DPPH radicals (IC50， DPPH) of 48.10 μmol/L and 40.54 μmol/L (as gallic acid equivalent)， respectively. Both revealed similar abilities for scavenging ABTS+ radicals (IC50， ABTS = 137 μmol/L). However， PGF tea exhibited a greater ability for scavenging OH- radicals (IC50，OH = 74.92 μmol/L) than that did PNF (84.84 μmol/L). In contrast to quercetin (IC50， DPPH， IC50， ABTS， IC50， OH = 25.67， 135.06， 146.88 μmol/L， respectively)， both teas presented the DPPH-scavenging abilities equivalent to a half of that for quercetin； the ABTS+-scavenging abilities comparable to that for quercetin； and the OH--scavenging abilities excelling that of quercetin. Both teas displayed the DPPH-scavenging abilities greater than those of vitamin C (VC) and TBHQ and the ABTS+ and OH- scavenging abilities higher than those of VC， TBHQ， and Trolox. Conclusively， PGF and PNF teas exhibited comparable in vitro antioxidant activities and were significantly higher those of quercetin and the antioxidants studied for the aqueous antioxidant activities (ABTS+ and OH-). These results provide an important theoretical basis for production process， research and development of Panax tea products.
引用本文乔俊茹,艾连中,夏永军,李沛慷,赖凤羲.人参属花茶中酚类物质的提取动力学与体外抗氧化活性[J].中国食品学报,2025,25(4):8-18
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文章指标 点击次数:65 下载次数: 50 HTML阅读次数: 0 历史 收稿日期:2024-04-21 在线发布日期: 2025-06-03 文章二维码相关知识
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