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<p>Industrial production of <i>Steamed Panax notoginseng</i> (SPN) faces batch-to-batch variability (RSD &gt; 15%) in rare G-Rk<sub>3</sub>, G-Rh<sub>4</sub>, 20(<i>S</i>) G-Rg<sub>3</sub>, and 20(<i>R</i>) G-Rg<sub>3</sub> and costly quality control due to expensive reference standards (e.g., 20(<i>S</i>) G-Rg<sub>3</sub> ≈ $2,500 per 5&#xa0;mg sample). To address this, we developed an integrated strategy: (1) A “Water Activation–Gradient Temperature Control” process optimized <i>via</i> orthogonal design and Arrhenius kinetics (Ea = 58.3&#xa0;kJ/mol) increased total rare ginsenosides by 78.6% (32.7&#xa0;mg/g, <i>p</i> &lt; 0.01) under the following optimized parameters: particle size of 2–4&#xa0;mm, water impregnation of 100% w/w for 2&#xa0;h, and steaming at 120&#xa0;°C for 5&#xa0;h. This optimization reduced batch variability to an RSD &lt; 5%; (2) An HPLC-QAMS method using accessible 20(<i>R</i>) G-Rg<sub>3</sub> as an internal reference achieved simultaneous quantification of four ginsenosides with validated relative correction factors (G-Rk<sub>3</sub>: 0.7331, G-Rh<sub>4</sub>: 0.5015, 20(<i>S</i>) G-Rg<sub>3</sub>: 1.0777; RSD &lt; 2.0%), demonstrating high accuracy (recovery: 91.95–101.34%, RSD &lt; 1.8%), linearity (R² = 1.000), and robustness across HPLC systems (RSD &lt; 3.5%), reducing reference standard costs by 75%. The Single-Marker Quantification (QAMS) method exhibited superior Analysis of greenness (AGREE) (score: 0.76 vs. 0.63 for ESM) and Blue Applicability Grade Index (BAGI) (score: 77.5 vs. 65.0 for ESM). Analysis of 15 batches confirmed consistency (RE% &lt; 5% vs. ESM), while optimized extraction (60% ethanol, 5 cycles × 1.5&#xa0;h) achieved 85.82% transfer rate for 20(<i>R</i>) G-Rg<sub>3</sub>. This work resolves SPN industrialization bottlenecks by ensuring bioactive consistency and establishing a cost-effective, eco-friendly quality control model transferable to other processed botanicals.</p>

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Steam processing of Panax notoginseng with single-marker quantification: a green industrial standardization strategy

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年3月8日

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  • Yifei Ning,
  • Nan Wang,
  • Shaoqiong Tian,
  • Yinxiong Liang,
  • Ji Ma,
  • Xiuming Cui

摘要

Industrial production of Steamed Panax notoginseng (SPN) faces batch-to-batch variability (RSD > 15%) in rare G-Rk3, G-Rh4, 20(S) G-Rg3, and 20(R) G-Rg3 and costly quality control due to expensive reference standards (e.g., 20(S) G-Rg3 ≈ $2,500 per 5 mg sample). To address this, we developed an integrated strategy: (1) A “Water Activation–Gradient Temperature Control” process optimized via orthogonal design and Arrhenius kinetics (Ea = 58.3 kJ/mol) increased total rare ginsenosides by 78.6% (32.7 mg/g, p < 0.01) under the following optimized parameters: particle size of 2–4 mm, water impregnation of 100% w/w for 2 h, and steaming at 120 °C for 5 h. This optimization reduced batch variability to an RSD < 5%; (2) An HPLC-QAMS method using accessible 20(R) G-Rg3 as an internal reference achieved simultaneous quantification of four ginsenosides with validated relative correction factors (G-Rk3: 0.7331, G-Rh4: 0.5015, 20(S) G-Rg3: 1.0777; RSD < 2.0%), demonstrating high accuracy (recovery: 91.95–101.34%, RSD < 1.8%), linearity (R² = 1.000), and robustness across HPLC systems (RSD < 3.5%), reducing reference standard costs by 75%. The Single-Marker Quantification (QAMS) method exhibited superior Analysis of greenness (AGREE) (score: 0.76 vs. 0.63 for ESM) and Blue Applicability Grade Index (BAGI) (score: 77.5 vs. 65.0 for ESM). Analysis of 15 batches confirmed consistency (RE% < 5% vs. ESM), while optimized extraction (60% ethanol, 5 cycles × 1.5 h) achieved 85.82% transfer rate for 20(R) G-Rg3. This work resolves SPN industrialization bottlenecks by ensuring bioactive consistency and establishing a cost-effective, eco-friendly quality control model transferable to other processed botanicals.