Views: 148 Author: LOONG FILTRATION Publish Time: 2025-12-27 Origin: Site
A. Preserving the "Bio-Active" Blueprint
The Technical Question: Can depth filtration (stack modules) achieve high-efficiency impurity removal without stripping away these bio-active compounds or negatively altering the oil's chemical equilibrium?
B. The Granular Trade-off: Selective Micron Precision
20-30μm: Optimized for maximum visual clarity and brilliance.
50-60μm: Optimized for higher water absorption and fiber retention.
C. Stability Without Compromise: Moisture Management
| Sensory quality protection | The core value of extra virgin olive oil lies in its sensory characteristics (bitterness, spiciness, and aroma). The filtration system must possess excellent biocompatibility to ensure that while removing impurities, it does not lose crucial polyphenolic antioxidants due to excessive shearing or adsorption. |
| Precise water removal and turbidity control | Since residual vegetable water in olive oil is the main cause of oxidative rancidity, the system needs to provide targeted filtration precision options. It should be able to flexibly switch between "ultra-clear (20-30μm)" and "deep dehydration (50-60μm)" depending on the quality of the feed oil, ensuring that the oil is transparent and free of free water before bottling. |
| Full-process hygiene standards | From the pipeline connection to the filter media, all components that come into contact with the oil must meet FDA or EU food-grade standards to ensure that there is no risk of plasticizer or heavy metal migration throughout the entire production process. |
System Configuration: Composite Depth Lenticular Filter.
Stage 1: Centrifugal Pre-Filtration: Preliminary purification removing 95% - 98% of large-diameter solid impurities.
Stage 2: Clarification & Polishing (Lenticular Module): Precision interception and moisture adsorption using depth-media to achieve a crystal-clear finish.
| Filtering stage | Recommended accuracy | Function | Core benefits |
| High Clarity Mode | 20-30μm | It intercepts tiny fruit pulp fibers and colloidal impurities. | It gives olive oil a crystal-clear visual texture, enhancing its high-end brand image. |
| Deep water removal mode | 50-60μm | The membrane stack utilizes its deep structure to physically absorb free water. | To prevent turbidity and oil-water separation after filling, and to inhibit the increase in acid value caused by hydrolysis. |
LOONG Filtration’s Relevant Products by Filtration Process
Lenticular FilterCore Advantages
| Feature | Performance & Benefit |
| Filtration Technology | Dual-media synergy of Diatomaceous Earth & Cellulose |
| Turbidity Removal | Exceptional efficiency with a ≥ 99.9% success rate |
| Service Life | 1x longer lifespan due to ultra-high dirt-holding capacity |
| Material Purity | Zero-leaching natural materials for high-cleanliness needs |
Precision Safeguarding of Sensory Quality: By utilizing high bio-compatibility materials and steady pressure-control technology, the system ensures zero loss of flavor compounds such as polyphenols and terpenes. This preserves the authentic aroma, bitterness, and pungency of the EVOO.
Stability of Acid Value & Physico-chemical Indicators: The 50–60 μm depth dehydration technology physically absorbs residual vegetation water. This effectively inhibits hydrolytic rancidity, ensuring that the oil’s physico-chemical indicators remain compliant throughout its shelf life.
Enhanced Visual Brilliance & Clarity: The 20–30 μm precision solution thoroughly removes minute pulp fibers and colloids that cause dullness. This gives the finished oil a crystal-clear, premium texture that enhances brand prestige.
Full-process Food Safety Compliance: All liquid-contact components and filter media comply with FDA and EU EC 1935/2004 standards, eliminating migration risks at the source and ensuring every drop is pure and safe.
Customized Filtration Logic: We provide more than just filter media; we offer deep selection services based on product characteristics. By categorizing applications into 20–30 μm (high clarity) and 50–60 μm (high water absorption), we solve the specific pain points of different production batches.
Verified Absolute Precision: We take responsibility for the filtration outcome. Through a rigorous quality management system, we ensure the modules achieve absolute interception without bypass or breakthrough caused by pressure fluctuations or material failure.
End-to-End Technical Support: We provide full technical coverage from solution validation to after-sales maintenance based on existing process parameters, ensuring the system operates at peak efficiency.
Strict Compliance & Traceability: We execute rigorous quality traceability for every batch. All media are certified for food contact safety under international regulations.
A1: In fact, this approach is not recommended. The filtration principle of a lenticular filter involves the liquid passing through the interior of the stacked discs simultaneously. Stacking different precisions together would lead to uneven flow distribution and inconsistent filtration results.
A2: No. LOONG Filtration’s composite depth modules feature excellent bio-compatibility. The 20–30 μm precision is specifically tuned to intercept physical pulp fibers and colloidal impurities that cause turbidity, without relying on high shear forces or aggressive chemical adsorption. Therefore, flavor-defining polyphenols and squalene are perfectly retained.
A3: Oxidation is often triggered by "vegetation water" (residual moisture). The 50–60 μm specification utilizes a specialized depth structure designed to physically adsorb free water. By removing water without heat or chemicals, we effectively inhibit the hydrolysis reactions that lead to increased Acid Value.
A4: Yes. Our dual-media technology (Diatomaceous Earth and Cellulose) is designed for high-viscosity food oils. The depth structure provides a massive dirt-holding capacity and stable flow channels, ensuring efficient flow even in low-temperature environments without requiring excessive pressure (which could damage volatile aromas).
A5: It depends on the raw material. If the oil is freshly pressed and has a high moisture content, prioritize the 50–60 μm "Dehydration Mode" for stability. If the moisture content is already within spec but the oil looks dull due to micro-particles, use the 20–30 μm "High Clarity Mode" to enhance visual quality.
A6: Absolutely not. All components and media are strictly compliant with FDA and EU EC 1935/2004 standards. We use zero-leaching natural materials to ensure the purity and food safety of every drop of EVOO.
A7: Thanks to depth filtration technology, our modules have a much higher dirt-holding capacity. Under identical conditions, their lifespan is typically about double that of traditional filter paper. Furthermore, the enclosed housing reduces oil loss and prevents secondary environmental contamination.
A8: It does both. While its core function is "Deep Dehydration," the depth matrix also intercepts larger suspended particles and plant debris. However, for the "crystal-clear" visual brilliance required by high-end retail, 20–30 μm remains the best choice for removing ultra-fine sediments.
A9: No. Our physical filtration logic focuses on clarity and moisture control rather than decolorization. Since this configuration does not contain active carbon or bleaching earth, the chlorophyll and carotenoids that give EVOO its iconic color are fully preserved.
Q10: What kind of technical support does LOONG Filtration provide for first-time installations?
A10: We provide full-process coverage, including selection advice based on your flow rate requirements, pressure-control guidance to prevent flavor damage, and maintenance services to ensure your physico-chemical indicators always meet the standard.
