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A novel optimization of water‐soluble compound polysaccharides from Chinese herbal medicines by quantitative theory and study on its characterization and antioxidant activities
Chemistry & Biodiversity ( IF 2.9 ) Pub Date : 2020-12-23 , DOI: 10.1002/cbdv.202000688
Xu Yang 1, 2 , Hai-Yu Ji 2 , Ying-Ying Feng 2 , Juan Yu 2 , An-Jun Liu 2
Affiliation  

The present study optimized the extraction characterization and antioxidant activities of water‐soluble compound polysaccharides (CPs) from hawthorn, lotus leaf, Fagopyrum tataricum, semen cassiae, Lycium barbarum, and Poria cocos Chinese herbal medicines that have mass ratios of 4 : 2 : 2 : 1.5 : 1 : 1. The CPs yield equation was predicted using quantitative theory, to which a maximum CPs yield of 7.18±0.24 % under the following optimal extraction conditions: a water‐to‐raw material ratio of 30 mL/g, an extraction temperature of 65 °C, an extraction time of 45 min, and extraction mode ultrasonic‐assistant extraction. CPs were consisted of Ara, Gal, Glc, Xyl, Man, GalA and GlcA in a molar ratio of 3.1 : 2.6 : 50.6 : 1.7 : 20.4 : 17.2 : 4.2. The HPGPC profiles and FT‐IR spectra implied that CPs were heterogeneous acidic polysaccharides and possessed the β‐d‐pyranose configuration. Congo red test, CD spectrum and SEM revealed that CPs with three helix conformation showed a flocculent, granulous or sheet‐like appearance. Furthermore, the relationships between antioxidant activity and concentration of CPs displayed significant positive correlation, and the scavenging abilities for DPPH, hydroxyl radical, ABTS, superoxide‐anion radical and reducing power of CPs were 93.56±2.51 %, 84.03±1.69 %, 83.29±1.93 %, 37.49±1.93 % and 0.467±0.006 at a concentration of 4.0 mg/mL. Therefore, CPs could be applied as a potential natural antioxidant in pharmaceutical or functional food fields.

中文翻译:

中草药水溶性复合多糖的定量优化新方法及其表征和抗氧化活性研究

本研究对质量比为4:2:2的山楂、荷叶、苦荞、决明子、枸杞和茯苓中草药水溶性复合多糖(CPs)的提取表征和抗氧化活性进行了优化。 : 1.5 : 1 : 1. 使用定量理论预测了 CPs 产率方程,在以下最佳提取条件下,CPs 的最大产率为 7.18±0.24 %:水与原料的比例为 30 mL/g,提取温度65℃,提取时间45分钟,提取模式超声辅助提取。CP 由摩尔比为 3.1:2.6:50.6:1.7:20.4:17.2:4.2 的 Ara、Gal、Glc、Xyl、Man、GalA 和 GlcA 组成。HPGPC 谱图和 FT-IR 光谱表明 CP 是异质酸性多糖并具有 β-d-吡喃糖构型。刚果红测试、CD 光谱和 SEM 显示具有三个螺旋构象的 CPs 显示出絮状、颗粒状或片状外观。此外,抗氧化活性与CPs浓度呈显着正相关,对DPPH、羟基自由基、ABTS、超氧阴离子自由基的清除能力和CPs的还原能力分别为93.56±2.51%、84.03±1.69%、83.29± 1.93 %、37.49±1.93 % 和 0.467±0.006,浓度为 4.0 mg/mL。因此,CPs 可以作为潜在的天然抗氧化剂应用于药物或功能食品领域。CD 光谱和 SEM 显示具有三个螺旋构象的 CPs 显示出絮状、颗粒状或片状外观。此外,抗氧化活性与CPs浓度呈显着正相关,对DPPH、羟基自由基、ABTS、超氧阴离子自由基的清除能力和CPs的还原能力分别为93.56±2.51%、84.03±1.69%、83.29± 1.93 %、37.49±1.93 % 和 0.467±0.006,浓度为 4.0 mg/mL。因此,CPs 可以作为潜在的天然抗氧化剂应用于药物或功能食品领域。CD 光谱和 SEM 显示具有三个螺旋构象的 CPs 显示出絮状、颗粒状或片状外观。此外,抗氧化活性与CPs浓度呈显着正相关,对DPPH、羟基自由基、ABTS、超氧阴离子自由基的清除能力和CPs的还原能力分别为93.56±2.51%、84.03±1.69%、83.29± 1.93 %、37.49±1.93 % 和 0.467±0.006,浓度为 4.0 mg/mL。因此,CPs 可以作为潜在的天然抗氧化剂应用于药物或功能食品领域。在 4.0 mg/mL 的浓度下,CPs 的超氧阴离子自由基和还原能力分别为 93.56±2.51 %、84.03±1.69 %、83.29±1.93 %、37.49±1.93 % 和 0.467±0.006。因此,CPs 可以作为潜在的天然抗氧化剂应用于药物或功能食品领域。在 4.0 mg/mL 的浓度下,CPs 的超氧阴离子自由基和还原能力分别为 93.56±2.51 %、84.03±1.69 %、83.29±1.93 %、37.49±1.93 % 和 0.467±0.006。因此,CPs 可以作为潜在的天然抗氧化剂应用于药物或功能食品领域。
更新日期:2020-12-23
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