Instant Granules of Enzymatically Hydrolyzed Protein Peptides

Jun 15, 2026

Instant Granules of Enzymatically Hydrolyzed Protein Peptides are granular products manufactured by breaking down proteins into small molecular peptides and amino acids via enzymatic hydrolysis, followed by a series of processing procedures.

Compared with intact proteins, these small molecular peptides and amino acids are easier for the human body to absorb and utilize, and can deliver nutritional effects in a shorter time.This product contains a variety of essential amino acids. As the basic building blocks of human proteins, these amino acids participate in many physiological processes such as muscle repair. It also includes biologically active peptide fragments with functions like antioxidation, which exert specific effects in the human body.In the pharmaceutical industry, thanks to its excellent solubility and biocompatibility, the product can serve as a drug carrier to encapsulate drug molecules, so as to enhance drug stability and bioavailability.

As people's health awareness continues to rise, the demand for nutritional supplements and health foods keeps growing. As an easily absorbable protein source, instant granules of enzymatically hydrolyzed protein peptides can meet demands for sports nutrition, daily health care and other scenarios, driving a steady expansion of market demand in food, beverage and health product sectors.

The promising market prospects will attract more enterprises to enter this track, leading to increasingly fierce competition. Traditional food and health product manufacturers, as well as emerging biotech companies, will ramp up investment in R&D, production and marketing of this product to compete for market share.

Amid intense market competition, improving product quality has become the core of corporate competition. Jiangsu Longxin has independently developed a multi-stage fluidized granulation spray dryer. This equipment enables more precise control over physical properties including particle size distribution, bulk density and flowability of the granules, making the products better suited for diverse application scenarios.

It also optimizes the drying process and equipment structure, reducing denaturation and degradation of enzymatically hydrolyzed protein peptides during drying, and enhancing product stability and biological activity. This is critical to preserving the nutritional value and functional properties of the peptides, especially in pharmaceutical and health product industries that impose stringent quality standards.

Process Flow of Multi-stage Fluidized Granulation Spray Dryer for Instant Granules of Enzymatically Hydrolyzed Protein Peptides

(1) Raw Material Pretreatment

The enzymatically hydrolyzed protein peptide solution is filtered, concentrated and otherwise pretreated to meet the concentration, viscosity and other requirements for spray drying. The treated material is then delivered via pipelines to the feeding system of the dryer.

(2) Hot Air Generation

Ambient air is heated by heaters to form hot air at a set temperature. The hot air is fed into the top of the drying tower and the bottom of the fluidized bed, passing through distribution plates to come into contact with materials and fluidize them. It provides sufficient heat and airflow conditions for subsequent drying and granulation.

(3) Slurry Atomization

The liquid material in the feeding system is pumped into the drying tower through nozzles at a preset pressure by diaphragm pumps and other devices. Pressure energy is converted into kinetic energy, ejecting the slurry upward from the nozzles to form a high-speed liquid film, which is instantly broken into fine droplets. The size of atomized droplets is inversely proportional to the operating pressure, while the output capacity of the nozzle is proportional to the square of the pressure.

(4) Drying and Spheroidization of Droplets

Atomized droplets interact with hot air in a mixed flow inside the drying tower. Hot air enters the tower through the top air distributor to form a downward laminar airflow, while droplets are sprayed upward into the hot air stream. Thanks to the large specific surface area of droplets, moisture evaporates rapidly under the effect of hot air. Driven by surface tension, droplets turn spherical and eventually shrink into dry spherical particulate materials. The finished spherical particles settle gradually in the tower and separate from hot air.

(5) Fluidized Granulation

Fine powder lifted upward by hot airflow in the fluidized bed collides with falling wet fine particles in the atomization and granulation zone. Particles grow gradually through coating and adhesion. Mother liquor or binder can also be delivered to atomizing nozzles by pressure pumps. After atomization, the liquid coats the surface of fluidized particles or bonds particles together. Through continuous fluidization, coating and drying, particles keep growing until reaching the target particle size.

(6) Discharge and Collection of Particles

Particles meeting the required particle size are discharged from the outlet of the fluidized bed and transferred to the finished product collection unit. Fine particles, together with drying air, are extracted by exhaust fans connected to the funnel-shaped upper section and sent to the dust removal system.

(7) Dust Removal and Exhaust Gas Treatment

The dust removal system consists of high-efficiency cyclone separators, centrifugal fans and other components. The exhaust fan delivers air mixed with fine particles into the cyclone separator for separation. Collected fine particles fall to the bottom of the separator and are returned to the atomization zone of the tower via rotary valves to serve as seed crystals. The residual exhaust gas containing trace ultrafine particles is further treated by a water film dust collector for harmless disposal, and finally discharged through the chimney.

(8) System Monitoring and Control

The electrical system, including the electric control cabinet and on-site temperature sensors installed at air inlets and material outlets, monitors and controls all key operating links of the dryer. It regulates parameters such as temperature, pressure, air velocity and material flow rate to ensure stable equipment operation and consistent product quality.

Performance Advantages of Multi-stage Fluidized Granulation Spray Dryer for Instant Granules of Enzymatically Hydrolyzed Protein Peptides

(1) Superior Product Quality

Excellent particle properties
It produces granules with uniform particle size, featuring outstanding flowability, solubility and dispersibility. During processing and application of enzymatically hydrolyzed protein peptides, the granules blend and dissolve readily to deliver optimal efficacy and user experience.
High product purity
Moisture in materials evaporates instantly thanks to rapid drying. The entire process is conducted at low temperatures, preventing thermal deterioration of raw materials. The finished products therefore maintain high purity, stable quality and fully meet the high-standard requirements for enzymatically hydrolyzed protein peptides.
Effective retention of active ingredients
The fast drying process minimizes the exposure time of heat-sensitive substances such as enzymatically hydrolyzed protein peptides to heat. This greatly inhibits deterioration and decomposition, well preserving active substances and nutrients, which is essential for maintaining the product’s functional and nutritional values.

(2) High Production Efficiency

Fast drying speed
The feed liquid is atomized into numerous fine droplets with vastly enlarged specific surface area. Moisture evaporates rapidly upon contact with hot air, and the drying process is completed within merely ten to dozens of seconds. It is well suited for large-scale industrial production.
Continuous production
The equipment runs stably and supports automated operation for continuous mass production. Relevant parameters can be adjusted to precisely control production and product quality, ensuring consistent finished products. It cuts labor costs and workload, and improves overall productivity and economic benefits.

(3) Streamlined Production Process

One-step granulation
Drying and granulation are integrated into a single process, which directly converts liquid materials into granular products. Subsequent procedures like crushing and sieving are eliminated. This simplifies the production workflow, reduces floor space and equipment investment. Meanwhile, it avoids dust pollution and material loss caused by crushing and screening, improving production safety and environmental performance.

(4) High Energy Efficiency & Environmental Friendliness

High energy utilization rate
The process operates with low exhaust air temperature. Compared with other drying technologies, it effectively reduces heat loss, boosts energy efficiency and lowers energy consumption and production costs.
Low dust emission in exhaust gas
Equipped with efficient dust removal systems including cyclone separators and bag filters, the device thoroughly captures dust from exhaust gas. The dust content of discharged gas complies with emission standards, mitigating environmental pollution and realizing clean production.

(5) Easy Operation & Maintenance

User-friendly operation
The equipment is easy to operate and master. It adopts a large color LCD touch screen, supporting combined automatic and manual control for flexible parameter adjustment according to production demands. Operating status can be monitored and adjusted in real time via gauges to guarantee stable production.
Convenient maintenance
With a rational structural design, key components are easy to disassemble and clean for routine upkeep. It reduces maintenance costs and downtime, and extends the service life of the equipment.
Technical Upgrades of Multi-stage Fluidized Granulation Spray Dryer for Instant Granules of Enzymatically Hydrolyzed Protein Peptides

(1) Upgrades to Atomization System
- Optimized nozzle design
  New-type atomizing nozzles such as two-fluid nozzles and pressure nozzles are adopted. They atomize feed liquid into fine droplets more evenly and expand the contact area with hot air to boost drying efficiency. Adjustments to nozzle angle, aperture and shape further improve atomization and mitigate wall sticking. The optimized nozzle structure for centrifugal spray dryers nearly eliminates this issue completely.
- Precise feed rate control
  High-precision metering pumps and flow control systems are installed to accurately regulate the feeding speed and flow rate in line with process requirements. This maintains stable atomization and prevents uneven drying and inconsistent product quality caused by excessive or insufficient feed volume.
(2) Upgrades to Drying System
- Improved hot air distribution uniformity
  The structure and design of the hot air distributor are optimized to deliver evenly distributed hot air inside the drying chamber. Every droplet can make full contact with hot air, enhancing drying uniformity and efficiency. It also avoids quality defects including irregular particle shape and uneven moisture content resulting from local overheating or underheating.
- Application of multi-stage drying technology
  Additional multi-stage drying processes are integrated into the original workflow. For instance, an integrated fluidized bed at the tower bottom performs secondary low-temperature fluidized drying and cooling. This further reduces residual moisture, improves product stability and solubility, and regulates particle size distribution and morphology to produce uniform and well-shaped granules.
(3) Upgrades to Granulation System
- Enhanced agglomeration granulation performance
  Optimized airflow and temperature fields inside the drying chamber facilitate the agglomeration and fusion of droplets to form larger and more uniform particles. Fine powder collected by the cyclone separator is conveyed back via air delivery for re-agglomeration with droplets. This increases particle size and strength, reduces fine powder generation and raises product yield.
- Controlled particle size distribution
  Advanced particle size analyzers and control systems are deployed to monitor and feedback particle size distribution in real time. The system automatically adjusts operating parameters such as feed rate, atomization pressure and hot air temperature according to preset target ranges. It realizes precise control over particle size distribution and produces qualified instant granules for diverse application scenarios.
(4) Upgrades to Control System
- Intelligent control
  Advanced automatic control systems including PLC and touch screen interfaces are applied to achieve precise control and real-time monitoring of all operational sections. Based on preset process parameters and control programs, the equipment automatically adjusts feed rate, atomizer speed, hot air temperature and air volume, ensuring stable drying processes and consistent product quality.
- Remote monitoring and diagnosis
  Supported by Internet of Things (IoT) technology, the dryer is connected to a remote monitoring center. Operators can check real-time operational data such as temperature, pressure, flow rate and rotational speed, as well as fault alerts anytime via mobile phones, computers and other terminals. Remote fault diagnosis and maintenance guidance are also available. Technical staff can quickly identify faults based on transmitted data and provide targeted solutions for on-site maintenance, improving maintenance efficiency and equipment operational reliability.
(5) Energy-saving and Environmental Protection Upgrades
- High-efficiency heat recovery system
  Heat recovery units are added to recycle heat from exhaust gas. The recovered heat is used to preheat incoming cold air or feed liquid, which improves energy utilization, cuts energy consumption and production costs, and reduces thermal pollution.
- Optimized exhaust gas treatment
  The exhaust gas treatment system is upgraded with high-efficiency cyclone separators, bag filters and other new dust removal devices to enhance dust collection capacity. The dust content of exhaust gas is further lowered to meet stricter environmental emission standards. Harmful gases in exhaust are also treated to reduce atmospheric pollution.