SHANGHAI HI SILICON TECHNOLOGY CO., LTD.
SHANGHAI HI SILICON TECHNOLOGY CO., LTD.

Formula Optimization Case for DHA Algal Oil Powder Addressing Floating Oil and Oxidation-Driven Fishy Odor Post-Dissolution

Table of Content [Hide]

    HiSiaddi is an innovative foreign trade service provider driven by both technology transformation and cross-border trading. We have established a service framework summed up as "1+2+3+4=1" and can supply DHA algal oil powder sourced directly from multiple well-known original manufacturers. As a foreign trader with independent R&D capabilities, HiSiaddi has repeatedly collaborated with production plants on technology conversion and accurately captured market demands to propose formula optimization and application improvement solutions for DHA algal oil powder products. Below is a consulting case regarding formula optimization for DHA algal oil powder.

    Contact HiSiaddi’s customer service if you require formula optimization consulting services.

    1. Client Profile

    Client: Nordic Nutri Oy, FinlandA mid-to-high-end Finnish functional nutritional food enterprise specializing in premium children’s DHA powder, maternal and lactating nutrition granules and pure sports nutrition raw materials. Its products feature zero fishy odor, high stability, compliance with EU infant food standards and long shelf life, distributed to high-end supermarkets, private medical institutions across Finland and nutrition brands throughout Northern Europe. The client adheres strictly to EU Regulation 1881/2006 on food contaminant limits, cGMP, low oxidation, low impurity and allergen-free systems. It is a technology-focused high-end buyer prioritizing raw material compatibility and mass production stability over pricing.

    The client has long purchased domestically produced 20% microencapsulated Schizochytrium-based DHA algal oil powder for mass manufacturing of single-serve infant DHA stick packs. Post-volume production, four persistent manufacturing and application defects emerged: powder moisture absorption and caking, fishy odor reversion during shelf storage, stratification upon reconstitution and excessive DHA potency decay in finished goods. The client’s R&D team repeatedly adjusted auxiliary ingredient ratios, mixing processes, packaging techniques and workshop temperature/humidity controls yet failed to eliminate the issues entirely, resulting in reduced new product yield, unstable inter-batch quality and halted full-capacity production.

    The client ultimately commissioned HiSiaddi to conduct full-dimensional root-cause analysis covering raw material properties, formula compatibility, manufacturing processes and storage stability, and deliver actionable rectification solutions.

    2. Four Key Manufacturing & Formula Technical Issues Encountered by the Client

    1.

    Powder prone to moisture absorption and poor flowability, causing jamming and excessive weight deviation on high-speed filling linesThe client operates fast automated stick-pack production lines; minor moisture absorption of raw materials leads to uneven feeding, material blockages and unqualified single-serve weight deviation, generating high rework rates during mass production.

    2.

    3.

    Faint fishy odor reversion after 1–2 months of finished product storageFreshly manufactured goods meet sensory standards, yet rapid oxidation during shelf storage generates rancid oil odors that violate sensory requirements for premium Northern European infant food.

    4.

    5.

    Visible stratification upon reconstitution with sediment at the bottom and floating oil on the surfaceReconstitution testing with clean water and simulated gastric fluid dissolution revealed incomplete powder breakdown, microcapsule rupture and oil leakage, resulting in stratification and sediment that compromise product appearance and nutrient absorption efficiency.

    6.

    7.

    Excessive decay of active DHA content in finished goodsAfter 90 days of ambient storage, active ingredient potency declined by over 3.5%, exceeding the client’s permitted deviation cap of ≤2% and failing the 24-month shelf-life standard.

    8.

    3. Professional Root-Cause Diagnosis by HiSiaddi (Core Key Findings)

    Partnering with the chief technical engineer of the algal oil factory, HiSiaddi conducted raw material re-inspection, powder microstructural analysis, formula compatibility review and simulation of the client’s production line conditions to pinpoint the root causes accurately:The defects stem not from substandard raw material purity, but mismatches between raw material surface characteristics, wall material structure, antioxidant systems and the client’s proprietary formulation and production processes.

    1. Excess free oil residue on powder surfaceStandard microencapsulated DHA carries trace free algal oil on its surface, which readily absorbs moisture and oxidizes — the primary driver of caking and odor reversion.

    2. Low wall material tightness and water resistanceConventional single maltodextrin wall materials form loosely sealed microcapsules prone to rupture in water, triggering floating oil and sediment stratification upon reconstitution.

    3. Underperforming basic antioxidant systemOnly single vitamin E was incorporated for antioxidation, insufficient to withstand high humidity and fluctuating temperature storage environments prevalent in Northern Europe, accelerating oxidation and potency decay over long-term storage.

    4. Mismatched auxiliary ingredient ratios in the client’s formulaHigh proportions of acidic fruit and vegetable powder in the client’s formulation reduce acid resistance of microcapsules, accelerating capsule rupture and DHA oxidation, leading to potency decay and odor reversion.

    4. Systematic Three-Pronged Solution by HiSiaddi: Raw Material Upgrades + Formula Fine-Tuning + Production Process Optimization

    HiSiaddi implemented a three-in-one technical solution combining source raw material upgrades, client formula adaptation and refined production process adjustments to fully resolve all application defects.

    (1) Specialized Raw Material Upgrades (Eliminate Oxidation, Odor Reversion and Moisture Absorption at the Source)

    1. Upgrade to double-layer composite microencapsulationReplace conventional single-layer maltodextrin encapsulation with tightly sealed double-layer microcapsules using modified starch and whey protein, drastically improving encapsulation compactness and minimizing surface free oil to fully mitigate moisture absorption, oxidation and odor reversion.

    2. Reinforced composite antioxidant systemA blended antioxidant system of vitamin E and rosemary extract was added, compliant with EU food standards without altering flavor profiles, significantly boosting oil oxidation stability.

    3. Post-processing surface hydrophobic treatment for powder flowabilityA post-production flowability modification step was added to reduce hygroscopicity and enhance powder fluidity, compatible with the client’s high-speed automated production lines.

    4. Controlled residual solvent and micro-impurity levelsA low-temperature optimized spray drying process minimizes thermal damage to heat-sensitive DHA structures and slows long-term potency decay rates.

    (2) Precise Client Formula Fine-Tuning (Zero Impact on Product Efficacy)

    1. Adjust ratios of acidic auxiliary ingredientsBuffer system pH levels moderately to prevent premature rupture of DHA microcapsules in acidic formulations, greatly enhancing storage stability.

    2. Compliant addition of food-grade anti-caking and flow aidsTrace food-grade anti-caking agents were legally incorporated into the overall formulation to boost bulk powder flowability and eliminate filling blockages and weight deviation on high-speed lines.

    3. Optimized ingredient feeding sequenceDHA powder is pre-blended with neutral carriers first before mixing with acidic auxiliary materials to avoid localized acid-base shocks that damage microcapsule structures.

    (3) Client Production Process Optimization for Premium Mass Manufacturing

    1. Strict control of workshop temperature and humiditySpecified production environment parameters: temperature ≤22℃, relative humidity ≤45% to prevent raw material moisture absorption and deterioration.

    2. Optimized mixing speed and durationLow-speed, extended uniform mixing is adopted to avoid microcapsule structural damage from high-speed friction heat generation.

    3. Upgraded finished product packaging processesThe client was advised to adopt high-barrier aluminum foil film packaging with nitrogen flushing to isolate oxygen and moisture and extend shelf-life stability.

    (4) Multi-Round Lab & Pilot Production Validation

    HiSiaddi oversaw three full trial production cycles:

    · Round 1: Resolved caking and uneven feeding issues

    · Round 2: Eliminated oxidation-driven odor reversion and excessive potency decay

    · Round 3: Fixed stratification, floating oil and sediment defects upon reconstitutionFormal mass production was approved only after all trial test data met specifications.

    5. Post-Implementation Performance Improvements

    1. Full elimination of all technical defects

    · Powder flowability drastically improved with zero filling blockages and fully compliant weight deviation on high-speed production lines;

    · No rancid or oxidized odors detected after 3 months of ambient finished product storage;

    · Clear, uniform reconstitution with zero floating oil, sediment or stratification;

    · Only 1.2% DHA potency decay after 90 days of storage, far better than the client’s ≤2% threshold, fully satisfying the 24-month shelf-life requirement.

    1. Sharply increased mass production yieldThe client’s production yield rose from 85% to 99.2%, fully eliminating rework and product scrap and restoring full production capacity.

    The client gained full trust in HiSiaddi’s technical expertise and confirmed that HiSiaddi acts not merely as a trading supplier but a core technical partner for the Northern European market. The client designated HiSiaddi as its exclusive DHA algal oil powder supplier and expanded cooperation to ARA powder, probiotic powder and compound mineral powder across all categories.

    6. Case Summary

    For high-end overseas clients purchasing DHA algal oil powder, terminal application performance — flowability, stability, shelf life, reconstitution effects and formula compatibility — rather than basic technical indicators constitute core pain points.Ordinary foreign trade suppliers only deliver goods without understanding microencapsulation mechanisms, formula compatibility rules or mass production process adaptation, making them unable to resolve practical manufacturing challenges for high-end clients.

    Equipped with deep knowledge of raw material structures, formula adaptation capabilities and mass production process experience, HiSiaddi delivers end-to-end rectification covering raw material property adjustments, client formula optimization and standardized manufacturing protocols, resolving all mass production technical pain points for premium powder formulations in one stop. This establishes us as an irreplaceable Chinese supply chain technical partner for mid-to-high-end overseas clients.

    Contact HiSiaddi’s customer service for further formula optimization consulting services.


    References
    We use cookies to optimise and personalise your experience, but you can choose to opt out of non-essential cookies.
    To find out more, read our Privacy Policy
    Reject All
    Accept All