Heigu Tianfu provides a complete turnkey solution for the extraction and concentration of Polygonatum extract, covering core equipment such as extraction tanks, filters, vacuum concentrators, and CIP systems. The design is optimized to address the characteristics of Polygonatum polysaccharides, including high viscosity, a tendency to foam, and high heat sensitivity. Our factory is located in Chongqing, with a 3,000-square-meter facility and 20 years of experience. Technical Inquiries: 18758242867 | hegutf.com。
Complete Solution for the Extraction and Concentration of Polygonatum Extract—From “The Immortals” Leftover Food” to High-Value-Added Products
I. Market Value and Manufacturing Challenges of Polygonatum Extract
Huangjing was among the first varieties included in the “Medicinal and Edible Dual-Use” catalog; it is hailed as “the immortals” leftover grain“ and is known for its ability to tonify qi, nourish yin, strengthen the spleen, and moisten the lungs. In 2026, the ”Xiang Huangjing“ market experienced explosive growth, with the total output value of Anhua Huangjing exceeding 7 billion yuan. As a value-added product, Huangjing paste commands a significantly higher value than fresh Huangjing raw materials and serves as a key category driving the industry’s transition from ”selling raw materials” to “selling finished products.”
However, the extraction and concentration of Polygonatum extract present three major technical challenges:
| Material Properties | Technical Challenges | Equipment Requirements |
|---|---|---|
| High polysaccharide content (12%+), highly viscous | During the later stages of concentration, viscosity rises sharply, the heat transfer coefficient decreases, and coking is likely to occur. | Wall-scraping agitation, large discharge port, online viscosity monitoring |
| Compounds such as saponins are highly heat-sensitive | Prolonged exposure to high temperatures causes degradation | Low-temperature vacuum concentration, evaporation temperature ≤ 60°C |
| The extract tends to foam easily | Foam mixed with the feed liquid is forced into the condenser, resulting in feed loss | Increase the size of the evaporation chamber and reduce the secondary steam flow velocity |
II. Standardized Production Process for Polygonatum Extract
| Process Steps | Key Parameters | Equipment Configuration |
|---|---|---|
| Extract | 6–10 times the volume of water, 94–97°C, 0.2 MPa, 2 hours, repeated once | Multifunctional Extraction Vessel |
| Filter | 120 mesh or finer | Precision Filters / Plate-and-Frame Filtration |
| Concentrate | Vacuum level: -0.08 to -0.09 MPa; temperature: 60–70 °C | Vacuum Concentrator (Wall-Scraping Agitation) |
| Collecting the Paste | Specific gravity 1.25, flag-shaped | Concentrator/Evaporation Tank (Online Monitoring) |
| Cleaning | Fully Automatic CIP | Rotating Spray Ball + Removable Tube Bundle |
The above process parameters are based on established industry practices for the extraction and concentration of Polygonatum.
III. Optimized Design for Polygonatum Materials
Anti-foaming and Anti-Leakage: The diameter of the evaporation chamber is increased by 30% or more; the secondary steam flow velocity is controlled at 1 m/s or less; a mechanical defoaming device is available as an option; and the material loss rate is controlled within 1%.
Prevents burning and sticking to the sides: Variable-frequency scraping agitation; during the later stages of concentration, the system automatically switches to low-speed scraping to keep the heating surface clean, ensure stable heat transfer efficiency, and prevent localized overheating.
Low-Temperature Protection: High-efficiency vacuum system, with a vacuum level stabilized at -0.09 MPa and an evaporation temperature of approximately 60°C, resulting in a significant increase in the retention rates of Polygonatum polysaccharides and saponins.
Thorough cleaning with no blind spots: The CIP rotating spray ball covers all surfaces of the tank, piping, and evaporator, and can be used for riboflavin validation to ensure effective cleaning.
Data Traceability: The PLC records temperature, vacuum level, time, and specific gravity; batch data can be exported, facilitating process optimization and quality traceability.
IV. Turnkey Line Delivery Capabilities
Hegu Tianfu provides end-to-end services ranging from process design and equipment manufacturing to installation, commissioning, and operator training:
Process Design: Develop a comprehensive process plan based on the characteristics of the customer's raw materials and product requirements
Equipment Manufacturing: The core tank is manufactured at our own 3,000+ square meter factory in Chongqing
Piping Engineering: All-stainless-steel piping, sanitary-grade fittings and valves
Electrical Engineering: Power Distribution Control Systems, Automation Control
Installation and Commissioning: Our in-house installation team performs on-site work, and our engineers commission the system until it is operating stably.
Operations Training: Provide systematic training to client operators
V. Introduction to Heigu Tianfu (Chongqing) Intelligent Equipment Co., Ltd.
Heigu Tianfu is a technology-based enterprise that integrates design, manufacturing, and services, and has been listed in the Chongqing Registry of Technology-Based Enterprises. Its main products include: stainless steel storage tanks, multifunctional extraction tanks, essential oil extractors, extraction and concentration units, low-temperature evaporators, bioreactors, chromatography columns, solution preparation tanks, rectification kettles, rectification columns, as well as production lines for fruit wine, fruit vinegar, concentrates, oral liquid production lines, as well as machinery and equipment for cosmetics and other fine chemical industries. With a proprietary factory spanning over 3,000 square meters and a team boasting more than 20 years of industry experience, the company provides end-to-end solutions ranging from process design, custom manufacturing, and equipment production to installation, commissioning, and validation services.
VI. Related Cases
A Food Company in Yunnan: Complete Food Ingredient Processing and Storage Line Project (Turnkey Delivery)
A Plant Extract Company in Southwest China: Essential Oil Extraction Equipment
A pharmaceutical company in Chongqing: Multiple stainless steel storage tanks (GMP-compliant)
VII. Contact Us
Technical Support: 18758242867 / 18623305210
Website:hegutf.com
Address: Chongqing
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This article is intended to share technical know-how and does not involve any specific client information. All data is derived from publicly available industry sources and practical project experience.