Definition:

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OmniMixer®Oils premix Health Benefits:

OmniMixer®Oils premix is a product made by mixing liquid oils, such as vegetable oils and animal fats, with additives like antioxidants, emulsifiers, and nutritional supplements, all in specific proportions. It is widely used in the feed, food, and pharmaceutical industries. The production process must consider oil stability, uniform mixing, and functional effectiveness.

The raw material control stage is a core component of ensuring the quality of the final OmniMixer®Oils premix. This stage involves rigorously selecting, testing, and pretreating raw materials, such as base oils and additives. The goal is to eliminate substandard materials and reduce the risk of quality issues, such as oxidation, contamination, and component instability.

Raw material control for OmniMixer®Oils premix:

Product Specifications:

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Product quality standards:

● Food grade, Feed grade, Infant formula, In-house

▶ Efficiently supplementing essential fatty acids

OmniMixer®Oils premix Applications:

OmniMixer®Oils premix typically use unsaturated fatty acids, such as omega-3 and omega-6, as their core components. The human body cannot synthesize these "essential fatty acids" on its own and must obtain them from food. These fatty acids serve as important components of cell membranes, maintain cell fluidity and permeability, and ensure basic functions such as nutrient absorption and signal transmission. They also regulate inflammatory responses and participate in immune regulation. Balancing these functions can reduce inflammation-related disease risk and support nervous system development.

■ Supplier onboarding and dynamic management

Richtek verifies supplier qualifications through a digital traceability system. This system includes production licenses, quality system certifications, and quarantine certificates for raw material sources. These measures ensure that raw materials meet food/feed grade standards. Using supplier grading management technology, we classify suppliers into A, B, or C grades based on historical supply quality, such as batch pass rate and test report consistency. We prioritize A-grade suppliers and establish long-term cooperation with them to reduce raw material risks.

OmniMixer®Oils premix is available in the following specification and contents, customized according to requirements:

☑  OmniMixer®Oils premix (Omega-3/Omega-6/Omega-9 ratio)

OmniMixer®Oils premix is an important ingredient in food processing because it enables precise control of fat composition, which enhances the nutritional value and sensory characteristics of products. In baking, adding premixes containing unsaturated fatty acids can replace some of the butter, reduce trans fat content, and improve dough extensibility when emulsifiers are added. This results in softer products with an extended shelf life. In dairy products, premixes that combine medium-chain triglycerides and omega-3s can enhance product functionality and adjust the fat melting point through formulation adjustments that optimize texture. In infant formula, premixes often use the "breast milk fat structure" as a template combined with DHA, ARA, and palmitic acid to promote infant digestion, absorption, and neural development. This makes them one of the core nutritional components of infant formula.Conjugated linoleic acid premix added to weight loss meal replacement products can inhibit fat synthesis, while low GI fats provide a feeling of fullness. In nutritional supplements for middle-aged and elderly people, a premix of Omega-3 and vitamin E is used to prevent cardiovascular disease and improve joint health.

OmniMixer®Oils premix in feed is an important source of energy and essential fatty acids. It can precisely meet the nutritional needs of different animals. Adding short-chain fatty acid premixes to the feed of livestock and poultry can promote intestinal development, reduce diarrhea, and improve survival rates. Using premixes containing vegetable oil during the fattening period of broiler chickens can replace some animal fats, lower feed costs, and boost the amount of unsaturated fatty acids in chicken meat.

■ Raw material receiving inspection

Richtek conducts precise testing of key indicators for base oils and additives to prevent substandard raw materials from entering the production process. Base oil testing technologies include measuring acid value, peroxide value, moisture and impurities, color, odor, and fatty acid composition. Acid value testing uses titration, in which a standard solution of potassium hydroxide is used to titrate free fatty acids in oils to prevent rancidity. The peroxide value is determined using the iodometric method, which reflects the degree of oxidation. Fatty acid composition analysis uses gas chromatography technology to separate and quantify fatty acids (such as palmitic acid, oleic acid, and omega-3) in oils, ensuring consistency with the required ratios in the formulation. The Richtek testing center also uses atomic absorption spectroscopy and inductively coupled plasma mass spectrometry to detect heavy metals and contaminants.

Customized formulation capabilities for OmniMixer®Oils premix:

The design of the formulation of OmniMixer®Oils premix is a core link connecting the characteristics of the raw materials with the functionality of the product. Designing these premixes requires balancing four key objectives: nutritional value, stability, applicability, and cost-effectiveness. The process involves systematically integrating technologies related to raw material characteristics, target requirements, and process compatibility.

Traditional single oils may contain excessive amounts of saturated or trans fatty acids, which can increase the risk of cardiovascular disease when consumed over a long period of time. However, oil premixes are scientifically formulated to lower blood cholesterol and prevent atherosclerosis. For example, they may contain primarily unsaturated fatty acids supplemented by saturated fatty acids. Omega-3 fatty acids lower triglyceride levels and improve lipid profiles, making them ideal for individuals with hyperlipidemia or fatty liver disease as an adjunctive therapeutic component. Since fats have a higher energy density than carbohydrates and proteins, precise premix formulation can provide energy while preventing obesity caused by excessive intake.

▶ Optimize fat structure and reduce metabolic burden

■ Precision regulation technology for nutritional indicators

For core nutritional indicators such as fatty acid composition and energy density, we achieve customisation through raw material ratio calculation and optimisation.

Fatty acid composition ratio technology: This technology uses gas chromatography (GC) to analyze the fatty acid profile of base oils. Then, a linear programming model calculates the optimal ratio of omega-3, omega-6, and omega-9 fatty acids. This ensures balanced and effective intake of different fatty acids. For instance, adding algae oil to premixes targeting cardiovascular health can achieve a DHA concentration of 20 g/L while keeping saturated fatty acids at ≤15%.

Energy density and metabolic rate optimization technology: The energy density design is based on the energy requirements of the target population. It calculates the amount of oil to be added and adjusts the types of raw materials based on digestibility. Metabolic enhancers formulated with bile acids or lipases improve animal digestion and the absorption of long-chain fatty acids. These enhancers are particularly suitable for young animals.

Stabilisation technology for OmniMixer®Oils premix:

Product stabilization is a critical step in ensuring that OmniMixer®Oils premix perform well during storage, transportation, and use. This stage prevents deterioration of performance characteristics such as uniformity, antioxidant properties, and microbial safety. This stage's primary goal is to use technical methods to prevent oil oxidation, stratification, and precipitation; reduce microbial contamination; and maintain the synergistic effects of the various components.

■ Antioxidant control technology

Liquid fats and oils, such as vegetable oils and animal fats, are prone to oxidation and rancidity due to factors like oxygen exposure, temperature, and light. This can lead to off-flavors, such as a rancid taste, increased free fatty acid levels, decreased nutritional value, and the production of harmful substances. Select appropriate antioxidants (natural or synthetic) and enhance their efficiency through formulation. Use rapid detection techniques, such as spectrophotometric measurement of peroxide and acid values and near-infrared spectroscopy analysis, to monitor the degree of oil oxidation in real time. Ensure that oxidation indicators comply with standards throughout the product's shelf life.

■ Physical stability control technology

OmniMixer®Oils premix is commonly used as a dispersion system for functional additives, such as vitamins, minerals, and enzyme preparations, in oil blends. However, it is prone to stratification, precipitation, or flocculation due to density differences and changes in interfacial tension.

To address the incompatibility between oils and water-soluble components, such as certain vitamins and enzyme preparations, emulsifiers are used to reduce interfacial tension. Then, homogenization refines the dispersed phase particles and enhances stability. Depending on the type of oil, emulsifiers can be selected from monoglycerides, sucrose esters, the Span/Tween series, and so on. For example, plant oils are primarily unsaturated fatty acids, so emulsifiers with appropriate HLB values must be used. High-pressure homogenization breaks down oil particles to the micron level, thereby reducing settling rates.

For systems containing solid particles (such as mineral micropowders), thickening agents/colloidal agents are added to increase the viscosity of the system, form a three-dimensional network structure, and prevent particle settling.

Common colloids include xanthan gum, guar gum, and sodium carboxymethyl cellulose (CMC), with typical addition levels ranging from 0.1% to 1%. It is important to balance viscosity and flowability to avoid excessive thickness that could impair pumping or mixing during use.

■ Functional requirements analysis and targeted design technology

The prerequisite for formula design is to accurately match the application scenario (such as food, feed, health products) and target function (such as nutritional fortification, energy supplementation, functional activity enhancement) of the product. It is necessary to use technical means to convert abstract requirements into quantifiable formula indicators.

Targeted demand modelling technology: Richtek can design fatty acid energy ratios or target specific functional components. For example, we can add OPO structured lipids to infant formula to promote calcium absorption. Through animal nutrition models, we calculate the fatty acid requirements of different species and growth stages of animals. We also determine the minimum addition levels of essential fatty acids, such as linoleic and linolenic acids.

Functional indicator quantification technology: This technology converts stability into measurable indicators. For example, a product is stored at 30°C for three months, resulting in a peroxide value increase of ≤2 meq/kg with no separation.

It also converts "easy absorption" into digestibility indicators by using an in vitro digestion simulator to measure the hydrolysis rate of fats under the action of pancreatic enzymes. This technology converts stability into measurable indicators. For example, a product is stored at 30°C for three months, resulting in a peroxide value increase of ≤2 meq/kg with no separation. The technology also converts "easy absorption" into digestibility indicators by using an in vitro digestion simulator to measure the hydrolysis rate of fats under the action of pancreatic lipase with a requirement of ≥90%.

Some high-end oil premixes contain targeted functional ingredients for more precise health interventions. OmniMixer®Oils premix contains medium-chain fatty acids, such as lauric acid found in coconut oil, are easily digestible and absorbable. They provide intestinal cells with rapid energy while inhibiting the growth of harmful bacteria and maintaining the balance of intestinal microbiota. Premixes designed for athletes may contain conjugated linoleic acid (CLA), which helps reduce muscle breakdown after exercise, promote fat metabolism, and enhance endurance and recovery speed.

▶ Functional ingredients enhance specific physiological regulatory effects

■ Storage condition control

Richtek will take the appropriate measures to prevent the deterioration of the quality of the raw materials during storage and pretreatment, such as oxidation and hydrolysis. For oils that are easily oxidized, such as fish oil and flaxseed oil, nitrogen is introduced immediately for sealed storage after acceptance. Alternatively, a small amount of food-grade antioxidants is added during pretreatment to delay oxidation. Low-temperature storage technology reduces the rate of oil oxidation reactions. Additives are stored in moisture-proof packaging (e.g., aluminum foil bags with vacuum sealing) in conjunction with dehumidified warehouses to prevent moisture absorption and caking. Conveyance pipelines for raw materials are made of food-grade stainless steel to prevent metal ions (e.g., iron and copper) from leaching into the oil and catalyzing oxidation.

■ Raw material compatibility optimisation technology

OmniMixer®Oils premix consists of base oils (such as soybean oil and fish oil) and functional additives (antioxidants, emulsifiers, nutritional supplements, etc.). Technical measures must be taken to avoid antagonistic interactions between components and enhance synergistic effects.

Compatibility verification technology: Physical compatibility is verified by observing whether stratification or precipitation occurs through accelerated centrifugal testing. The viscosity of the mixed system is measured using a viscometer. Chemical compatibility is verified by monitoring the degradation rate of active ingredients using high-performance liquid chromatography (HPLC).

Synergistic enhancement technology: Designs a composite antioxidant system leveraging the synergistic effects of primary antioxidants and synergists to achieve performance over 30% better than single antioxidants. Based on the oil's polarity, emulsifiers with different hydrophilic-lipophilic balance (HLB) values are blended. For example, soybean oil with an HLB value of approximately 7 requires a combination of monoglycerides with HLB values of 6–8 and Tween 80 to achieve emulsion particle sizes of ≤1 μm and prevent separation.

■ Microbial inhibition technology

Liquid environments with high moisture content are prone to bacterial, mold, and other microbial growth, which can lead to product spoilage and deterioration, such as accelerated acidification and the production of off-odors. Richtek adds food-grade preservatives to inhibit microbial growth. The appropriate type is selected based on the product's pH value. Liquid oil premixes typically have a pH ranging from neutral to slightly acidic. We perform low-temperature sterilization on raw materials or finished products to eliminate pathogenic and spoilage bacteria while minimizing damage to oils and heat-sensitive additives caused by high temperatures. We use aseptic filling equipment, such as aseptic pipes and tanks, to prevent secondary contamination during the filling process.

High-precision mixing technology for OmniMixer®Oils premix:

The product mixing stage of OmniMixer®Oils premix is critical for uniformly dispersing oils and functional additives, such as vitamins, minerals, enzymes, and antioxidants, through physical or chemical means, forming a stable, uniform system. The objective of this stage is to achieve a uniform distribution of all components at the micro level, thereby avoiding localized high concentrations (e.g., localized oxidation due to insufficient antioxidants) or stratification.

■ Stepwise mixing and pre-treatment technology

Due to the significant differences in compatibility between oils and other components (especially solids and water-soluble substances), direct mixing can easily lead to agglomeration or stratification. Stepwise pre-treatment is required to improve mixing efficiency.

First, water-soluble vitamins (such as B vitamins and vitamin C) and organic acids (such as citric acid) are dissolved in a small amount of water or polar solvents (such as glycerol) to form a solution. This solution is then slowly added to the oil to prevent agglomeration caused by the direct addition of solid particles. For components susceptible to oil damage (e.g., probiotics and certain enzymes), microencapsulation using materials such as arabic gum or modified starch is employed to form "solid particles" dispersed in the oil, which isolates them from direct contact with the oil.

Add ingredients in the following order: oil, liquid additives, and high-viscosity/solid additives. First, thoroughly mix the base oil. Then, add the liquid additives. Finally, slowly add the pretreated solid particles to prevent precipitation caused by localized high concentrations. For components with significant density differences, use the gradient dilution method. First, mix the solid additives with a small amount of oil to form a masterbatch. Then, gradually add the masterbatch to the remaining oil to reduce the risk of settling.

■ Mixing equipment and parameter optimization technology

The selection and operating parameters of mixing equipment directly impact its efficiency and uniformity. Richte designs equipment specifically for each application based on the characteristics of the materials being mixed, such as oil viscosity and additive form. Our specialized mixing equipment includes high-shear emulsifying mixers, static mixers, screw ribbon mixers, and vacuum mixers. Key parameters, such as temperature, mixing time, and speed, are controlled to achieve optimal results.