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

Customized Star Anise Oil with Trans-Anethole ≥92% and Safrole ≤10ppm

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    HiSiaddi is an innovative foreign trade service provider driven by both technology commercialization and foreign trade services. It has established a "1+2+3+4=1" service system and can supply star anise oil sourced directly from multiple well-known original manufacturers. As a foreign trader with R&D capabilities, HiSiaddi has repeatedly resolved customized product demands for clients through technological cooperation with factories and precise insight into market demands. Below is a case of HiSiaddi addressing customized requirements for star anise oil.

    Please contact HiSiaddi customer service if you require further customized services.

    1. Client Profile

    The cooperating client is BelgAroma, a renowned mid-to-high-end comprehensive group based in Belgium. Its business covers three core segments: premium bakery food, spirit flavoring, and luxury home fragrance, with products popular across Western Europe including Belgium, the Netherlands and Luxembourg. It partners with multiple Michelin-starred restaurants, boutique wineries and high-end home fragrance brands. The enterprise imposes three stringent sets of standards on natural plant essential oils: EU food-grade standards, IFRA fragrance codes and full organic traceability, making it a typical high-end customized procurement client.

    In June 2026, the client launched a new product line R&D project requiring customized star anise oil for flavor formulation of premium liqueurs and French bakery essences. The client previously contacted three domestic manufacturers in China, yet none could simultaneously satisfy multiple customized indicators including aroma profile, component ratios, low-temperature stability, organic traceability and low pesticide residue. Repeated failed sample trials delayed the progress of new product R&D. The client formally entrusted HiSiaddi with the project, requiring completion of process debugging, lab-scale trials and pilot mass production within 22 days, together with full sets of EU compliance documents, to deliver exclusive customized products.

    2. Stated Customization Requirements & Core Industry Challenges

    (1) Core Customization Specifications

    1. Aroma Customization: Abandon the strong sweet scent of conventional star anise oil; deliver a primary sweet fennel note paired with subtle herbal undertones and a mild cooling finish. The aroma must be soft and mellow without pungency, compatible with the flavor framework of alcoholic beverages and bakery foods.

    2. Component Control: Trans-anethole content ≥92%, safrole ≤10ppm (mandatory EU food limit), phenolic impurities ≤0.8%.

    3. Physical Properties: Solidification point ≤14°C to meet low-temperature storage and feeding requirements in Northern Europe; the oil must remain liquid without crystallization or delamination under low-temperature conditions.

    4. Safety Indicators: Pesticide residues compliant with EU Regulation 396/2005; heavy metals non-detectable; no solvent residues.

    5. Traceability & Production: Raw materials sourced from organic fresh star anise fruits with full-chain traceability; single customized batch output of 800kg; GC-MS spectrum similarity between batches ≥96%.

    6. Packaging Compliance: Food-grade light-proof iron drums with bilingual French-English labels, equipped with traceability QR codes and full sets of test documentation.

    (2) Prevalent Customization Barriers in the Industry

    1. Trade-off Between Aroma and Core Components: Star anise oil produced via conventional distillation features excessively high anethole content and cloying heavy sweetness. Adjusting aroma layers tends to push the core trans-anethole content below the standard threshold.

    2. Severe Low-Temperature Solidification Issues: Conventional star anise oil generally has a solidification point above 18°C. In cold winter storage and production environments of Northern Europe, the oil crystallizes and blocks automated feeding pipelines.

    3. Difficulty in Deep Impurity Removal: Safrole and phenolic impurities are natural coexisting derivatives. Traditional distillation only achieves preliminary separation and cannot stably reduce these substances to ultra-low EU regulatory limits.

    4. Incomplete Organic Traceability Systems: Most manufacturers source raw materials from scattered individual farmers and fail to provide records of organic cultivation, plot traceability and harvesting control documents, failing to meet the traceability requirements of high-end clients.

    3. HiSiaddi’s Customized Technical Breakthroughs & Solution Implementation

    HiSiaddi assembled a dedicated team of fragrance process engineers, perfumers, quality control specialists and compliance experts, and collaborated with leading domestic essential oil manufacturers in major star anise producing regions to overcome challenges across five dimensions: raw material selection, process optimization, impurity removal, physical property modification and traceability system construction.

    (1) Source Raw Material Selection & Staged Harvesting to Lay a Foundation for Aroma & Quality

    · Exclusive standardized organic star anise plantations in Wuzhou, Guangxi were designated as dedicated harvesting plots, with zero chemical pesticides or fertilizers applied throughout cultivation to strictly control pesticide residues and impurities at the source.

    · Restricted harvesting window: Only mid-maturity fresh fruits are selected, avoiding the overly sweet aroma of overripe fruits. Fresh fruits are delivered for processing within 4 hours after picking to prevent miscellaneous odors from stacking and fermentation, preserving the base sweet herbal fragrance profile.

    (2) Combined Fractional Distillation & Rectification to Balance Aroma and Core Components

    Abandoning traditional single-stage steam distillation, a two-stage process of low-temperature pre-distillation and precision rectification was adopted:

    1. Pre-distillation: Conducted at 90°C under negative pressure to gently extract active ingredients, retain herbal secondary notes and reduce heavy cloying sweetness.

    2. Segmented rectification fraction collection: Essential oil fractions were collected in segments according to gas chromatography spectra to precisely enrich trans-anethole, stabilizing its content at 92.5%–93.2% while retaining trace herbal aromatic substances to fully replicate the client’s target fragrance profile.

    3. Odor calibration: 15 rounds of blind sample testing were completed with professional perfumers to fine-tune fraction ratios, locking in the standard fragrance and characteristic spectra to guarantee consistent aroma across batches.

    (3) Deep Purification to Strictly Regulate Harmful Impurity Levels

    Post-treatment procedures of molecular distillation and activated carbon adsorption were added to selectively remove safrole and phenolic impurities:

    · Targeted separation of naturally coexisting hazardous substances stabilized safrole content at 6–8ppm, well below the EU 10ppm limit.

    · Phenolic impurities were reduced to below 0.6%, eliminating off-flavor risks while fully complying with food additive specifications.

    (4) Physical Property Modification to Resolve Low-Temperature Solidification Problems

    Through fraction blending and blending with trace compliant natural auxiliaries, the oil’s crystallization characteristics were adjusted without altering core components, compromising aroma or violating food safety standards. The final finished product achieved a solidification point of 12.3°C–13.5°C, maintaining a liquid state under conventional low-temperature storage and production conditions in Northern Europe, enabling smooth automated pipeline conveying and feeding without crystallization or delamination.

    (5) Full-Process Quality Control & Batch Consistency Management

    A dedicated quality control system for customized batches was established, with timed sampling and testing at every stage from raw material processing, distillation and rectification to finished product inspection, covering all indicators including components, aroma, solidification point, impurities and pesticide residues. GC-MS spectrum similarity between finished batches reached ≥96.2%, delivering highly uniform quality.

    (6) Organic Traceability & Full Set of EU Compliance Documentation

    · A blockchain traceability system was built to record planting plots, harvesting timelines, processing parameters and test reports, enabling full-chain traceability via QR code scanning.

    · In accordance with EU food and fragrance regulations, full English documentation was issued including COA test reports, pesticide residue test reports, food contact safety certificates, IFRA compliance statements and SDS safety data sheets, all sealed with CNAS/CMA certification stamps.

    · Food-grade light-proof sealed iron drums were used with customized bilingual French-English labels marking ingredients, batch numbers, traceability codes, warning statements and compliance logos, meeting EU transportation and warehousing standards.

    4. Sampling, Mass Production & Delivery

    1. Lab-Scale Verification (9 days): Multiple batches of lab samples were produced. The client’s laboratory completed full testing of components, solidification point, aroma and food compatibility, with all customized indicators meeting standards and flavor validation passed.

    2. Pilot Mass Production (10 days): An exclusive customized production line was activated with on-site technical staff monitoring all parameters throughout the process. The first batch of 800kg customized star anise oil was manufactured and passed full re-inspection.

    3. Packaging & Shipment: Filling and labeling were completed per client requirements, with full compliance documents attached. Goods were declared and shipped on schedule under temperature-controlled transport, achieving smooth customs clearance upon arrival in Belgium.

    5. Project Outcomes & Long-Term Cooperation

    · Full delivery of customized specifications: The oil’s aroma, chemical composition, low-temperature performance, safety indicators and traceability system all satisfied client standards. After deployment in liqueur and bakery essence production, the product delivered outstanding flavor performance and seamless operation of low-temperature production lines, enabling the successful finalization and launch of the new product line.

    · Client Feedback: The client’s R&D Director stated that HiSiaddi fully understands the customization logic of premium food and fragrance sectors. The team not only resolved multiple technical process bottlenecks but also prioritized regulatory compliance and long-term stability, making HiSiaddi a professional service provider worthy of in-depth collaboration.

    · Deepened Partnership: The client terminated cooperation with former suppliers and designated HiSiaddi as the exclusive customized supplier of star anise oil, signing an annual procurement framework agreement with annual purchase volume rising to 4 tons. The client also entrusted HiSiaddi with customization and supply services for other natural food fragrances.

    6. Case Summary

    Overseas mid-to-high-end food and fragrance clients purchasing customized star anise oil focus on exclusive aroma profiles, precise component control, low-temperature physical performance, strict impurity limits, organic traceability and international regulatory compliance — a stark contrast to low-end buyers who only prioritize basic content indicators and low prices.

    In this service project, HiSiaddi leveraged raw material control, composite purification processes and physical property optimization, paired with a complete traceability and compliance system, to provide one-stop solutions to four core customization challenges: aroma imbalance, inconsistent component content, low-temperature crystallization and excessive impurities. The full-cycle service spanning R&D sampling through mass production and delivery met high-end clients’ core demands for quality, stability and regulatory compliance through professional technical capabilities and end-to-end service, ultimately securing long-term strategic cooperation.

    Please contact HiSiaddi customer service if you require further customized services.


    References
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