In plant operations, quality control is always under pressure to release raw materials within a short timeframe. In reality, trucks carrying corn and soybeans have to wait 6 to 8 hours at the depot just for the results of core nutritional analysis from the laboratory.
This bottleneck stems directly from traditional analytical methods such as manual hydrolysis, which easily clogs membranes, or Soxhlet extraction, which causes chemical loss. Delays in results not only increase storage costs but also risk disrupting the plant’s feed formulation process.
Feed quality control requires comprehensive automation solutions to shorten testing time and optimize operating budgets. This article analyzes a standardized nutritional analysis process meeting TCVN/ISO standards using modern equipment distributed by Duc Duong.

1. Operational Bottlenecks and P&L Pressures

1.1 Hidden Costs from Delayed Test Results

Delays in delivering nutritional test results create a serious bottleneck for the entire factory production line. When trucks carrying raw materials are held at the depot for 6 to 8 hours, the business incurs additional storage costs and risks delays in delivery.

Furthermore, delays in analytical data disrupt the real-time calculation of feed formulation balance. This directly affects the quality consistency of each batch of finished products leaving the factory.

1.2 Monthly Burden of Organic Solvent Costs

Besides time pressure, the lab’s P&L department faces a significant burden from the expensive chemical procurement budget. The classic Soxhlet extraction method results in the complete evaporation and loss of 100% of the organic solvent (Ether, Petroleum ether) into the environment after each test batch.

As a consequence, the laboratory has to constantly reimburse the cost of purchasing new solvents monthly. In addition, the lost chemical vapors pose a risk of toxic exposure to the testers and increase the cost of EHS (Electrolyte Heating) gas treatment.

2. Standardizing the Protein Sample Digestion Process

2.1 Overcoming Sample Burning Issues Using the Smart-20 Sonnen Sample Digestion System

The traditional electric stove-based sample digestion process often encounters problems with uneven heating, causing localized burning of samples and loss of ammonia gas. According to the standard TCVN 4328-1:2007 (ISO 5983-1:2005), unstable temperature directly distorts the total nitrogen index and crude protein content.
To completely address this risk, Duc Duong provides the imported Smart-20 Sonnen Sample Digestion Analyzer, with synchronized technical specifications from the manufacturer Sonnen China.
The device utilizes a uniform cast aluminum heating element reaching 450°C, processing 20 samples simultaneously per batch without degrading or altering their nutritional composition.

2.2 Overcoming the Fear of H2SO4 Gas Corrosion

The decomposition of organic matter using concentrated acid at high temperatures always releases large amounts of toxic H2SO4 gas. If not thoroughly collected, the acid vapor will corrode and rust expensive measuring equipment in the lab.
The Smart-20 sample digestion system integrates a central gas neutralization system, absorbing and completely eliminating the released acid vapor. This feature eliminates the fears of lab managers about the risk of property damage and protects the health of personnel.

3. Optimizing Fiber Extraction Time

3.1 Breakthrough Productivity with a 30 Sample/Batch Filter Bag Fiber Extraction Machine

The traditional method of determining coarse fiber according to TCVN 4326:2001 (ISO 6865:2000) using glass filter funnels takes 4 to 5 hours for a few samples. Glass filter membranes are easily clogged by fine fiber particles, causing soap splatter and ruining the entire test batch.
To overcome this bottleneck, Duc Duong distributes an automatic fiber extraction machine using the Sonnen Filter Bag System, capable of handling 30 samples per batch.

Comparison Criteria	Classical Funnel Filtration Method	Filter Bag Technology
Processing Time	4 – 5 hours / batch (2 – 4 samples)	45 – 60 minutes / batch (30 samples)
Operating Procedure	Manual heating, decanting, and rinsing of each sample	100% automated heating, rinsing, and rinsing
Technical Risks	Glass filter membrane clogging, sample splashing	No membrane clogging, no fluid blockage

Filter Bag technology allows for the simultaneous extraction of 30 samples per batch within 45 to 60 minutes, automating the entire boiling, washing, and rinsing process. As a result, the lab reduces the time required for crude fiber analysis by 80%.

The F22 Sonnen fiber extractor helps shorten animal feed testing time significantly

3.2 Relieving the Fear of Filter Bag Tearing and Sample Damage

QC managers often worry about the risk of sample bags breaking or tearing in boiling acidic and alkaline environments. The specialized filter bags of the Sonnen system are made from heat-resistant 3D synthetic fiber membranes, completely resistant to concentrated H2SO4 and KOH solutions.

The micro-porous membrane structure ensures continuous osmosis of the solution without loss of fine fiber particles. As a result, the test maintains a repeatability error of < 0.5%, meeting the stringent criteria for ISO/IEC 17025 method validation.
To receive a detailed ROI calculation to reduce lab operating costs and to register for actual TACN sample analysis at the Duc Duong Showroom, please click on the Contact Duc Duong Company form to receive in-depth support from our engineering team.

4. Reducing Chemical Costs for Fat Extraction

4.1 Recovering Over 85% of Solvent with the Sonnen G100 Fat Extractor

The process for determining crude fat according to TCVN 4331:2001 (ISO 6492:1999) requires a large amount of extraction solvent. The classic Soxhlet method, involving manual soaking and rinsing, consumes hundreds of millions of VND in chemical costs annually due to the inability to reuse the solvent.
Duc Duong solves this P&L problem with the Sonnen G100 automatic fat extractor solution, connected to the official Sonnen G100 Official data system.

The fully automated machine performs 6 steps: soaking, extraction, washing, solvent recovery, drying, and cooling. The recovery rate of condensed organic solvents exceeds 85%, making the device a key to reducing chemical purchase costs.

4.2 Optimizing P&L and Protecting the Health of Testing Personnel

Recovering over 85% of the solvent directly reduces the cost of purchasing Ethyl ether or Petroleum ether by 80% to 85% each month. The savings optimize the P&L of the QC department.

Simultaneously, the closed condensation system completely prevents solvent vapors from escaping into the cleanroom air. This eliminates the risk of EHS fire and explosion and protects the respiratory health of testing personnel.

5. Solutions to Overcome Hardware Fears

5.1 Eliminating Operational Barriers and the Risk of Component Breakdowns

The biggest fear of Purchasing Managers and Lab Managers when investing in automated machines is that the equipment is too complex or that there are no replacement parts available if it breaks down. The Sonnen series of machines distributed by Duc Duong features an intuitive digital interface, pre-stored with 50+ standard TCVN SOP procedures, making it easy for technicians to operate after just one day of training.
To prevent operational disruptions, Duc Duong maintains a readily available stock of consumables (filter bags, sample digestion tubes, buffer membranes) in Ho Chi Minh City. Our application engineering team is committed to providing on-site technical support within 24 hours of any issues arising.

5.2 Ensuring ISO/IEC 17025 Validation Capability

Another concern for the QA/QC team is that the analysis results from the new machine cannot be validated for ISO/IEC 17025 assessment reporting. All Sonnen equipment supplied by Duc Duong comes with a complete set of method validation documentation.
Experimental data demonstrates that the precision and repeatability are equivalent to 100% compared to the arbitration method. This makes it easier for the lab to defend its data before accreditation assessment teams from the Board of Accreditation (BOA).

6. ROI Analysis and 17025 Assessment Documentation

6.1 Actual ROI for the Lab

From a financial perspective, investing in the Sonnen automation trio yields a superior ROI. The break-even point is calculated based on 85% savings in solvent costs, plus an 80% reduction in operating labor costs.
For QC labs processing an average of 50 to 100 samples per day, the estimated payback period for the complete equipment set is only 12 to 18 months. After this period, the system will generate direct net profit for the factory.

6.2 Establishing a Tracking and Regular Maintenance Record According to ISO Standards

To maintain equipment calibration according to ISO/IEC 17025 standards, the lab needs to establish a digitized operation log. The log tracks the schedule for physical replacement and regular maintenance every 6 to 12 months.
At the same time, the representative sampling process must strictly comply with TCVN 13052:2021. The combination of input standardization and output automation ensures data integrity for all tests.

Conclusion

In summary, addressing the productivity bottleneck in animal feed testing requires a technological shift from classical methods to intensive automation. The integrated solution, including the Smart-20 sample digestion unit, the 30-sample/batch filter bag fiber extraction machine, and the Sonnen G100 fat extraction machine, helps shorten analysis time by 80%, recover over 85% of expensive organic solvents, and completely eliminate the risk of bag tearing and sample damage. The equipment system ensures compliance with ISO/IEC 17025 standards, optimizes P&L, and delivers a break-even ROI in just 12 to 18 months. Duc Duong Company is proud to be a reputable distributor of high-quality animal feed analysis equipment through official channels. For businesses requiring detailed ROI calculations and price quotes for genuine animal feed testing equipment, please contact and register with DUC DUONG SCIENCE AND TECHNOLOGY COMPANY for dedicated support.

 

DUC DUONG SCIENCE AND TECHNOLOGY COMPANY

Address: 1014/67 Tan Ky Tan Quy, Binh Hung Hoa Ward, Binh Tan District, Ho Chi Minh City

Tel: (028) 3762 8042 – 3762 8043 – 3750 8514 – 3750 8793

Fax: 028 37628043

Email: ducduong@ducduongco.com

Website: ducduongco.com

ZALO OA: DUC DUONG SCI

 

FAQ

1. Does the filter bag technology for fiber extraction meet the TCVN 4326:2001 standard?

Filter bag technology fully complies with the acid-alkali hydrolysis principle of TCVN 4326:2001 and ISO 6865:2000. The 3D porous membrane bag structure ensures continuous flow of the extract, completely eliminating deviations due to clogging of the glass filter membrane while maintaining the fiber mass after ash drying.

2. What are the economic benefits of a solvent recovery rate of > 85% on the Sonnen G100 fat extraction machine?

For a lab processing an average of 50 samples/day, recovering 85% of the Petroleum Ether or Ethyl Ether solvent saves hundreds of millions of VND in annual chemical costs, while also reducing the cost of treating toxic EHS emissions.

3. Why does the Sonnen Smart-20 sample digestion system prevent nitrogen loss compared to conventional electric heating plates?

The Smart-20 uses a uniform cast aluminum heating element for all 20 sample positions, precisely controlling the temperature according to the programmed settings. This prevents overheating that can cause localized sample burning – the main cause of nitrogen loss due to evaporation as defined in TCVN 4328-1:2007.

4. What is the return on investment (ROI) for a complete automated animal feed analysis system?

Thanks to an 80% reduction in labor time, an 85% saving in chemicals and solvents, and a 3x faster turnaround time for goods, animal feed factories’ laboratories typically achieve a break-even ROI after only 12 to 18 months of operation.

5. What support does Duc Duong provide to ensure the machine is not left unused after purchase?

Duc Duong provides a complete solution: Transfer of standard ISO/IEC 17025 SOP procedures, on-site technician training, readily available stock of consumables (filter bags, digestion tubes) in Ho Chi Minh City, and a commitment to on-site technical support within 24 hours.