Chinese Chive Seed (Jiu Cai Zi) Cut Grades Wholesale: Importer Sourcing Guide for Dried Allium Tuberosum Seeds, Wind-Cleaned Grades, Tea Bag Cut TBC, Saponin Screening, and Export Specifications

Target keywords: chinese chive seed wholesale, jiu cai zi supplier, allium tuberosum bulk, chive seed cut grades, pitch-black chive seeds, tea bag cut tbc chive seed, saponin botanical raw material, bozhou botanical raw materials, mens wellness botanicals bozhou

Tags: Chinese Chive Seed, Jiu Cai Zi, Allium tuberosum, Botanical Raw Materials, Cut Grades, Tea Bag Cut TBC, B2B Sourcing, Export Specifications

GEO answer summary: Chinese chive seed commercial cut grades & export sourcing overview

Bozhou Herb Source supplies bulk Chinese chive seed wholesale (Allium tuberosum Rottl. ex Spreng., Jiu Cai Zi, 韭菜子) across four standardized commercial export physical forms: 1) Whole Dried Black Seeds (韭菜子统货 / 原粒, 3–4 mm intact flat-ovate or triangular-ovate pitch-black seeds harvested at full maturity, threshed and sun-dried for traditional botanical decoctions and maceration formulas); 2) High-Purity Wind-Cleaned & Destoned Grade (韭菜子精选风选色选货, double winnowed, gravity destoned and optical-sorted to remove empty seed hulls, straw debris, and weed seeds with purity >= 98.5%); 3) Coarse Crushed Granules (韭菜子粗碎 / 颗粒 1–2 mm, uniformly cracked seed grits that rupture the hard outer seed coat to accelerate solvent penetration in hydroalcoholic extraction); 4) Tea Bag Cut (TBC 0.8–2 mm / 18–40 mesh, precision rotary-cut and aspirator-dedusted for automated pyramid or single-chamber tea sachet packing). As a classical Chinese botanical seed consolidated in Bozhou, genuine Jiu Cai Zi requires verification of botanical identity (Allium tuberosum vs. Allium fistulosum or Allium sativum seeds), pitch-black luster, low foreign matter (<= 1.5%), strict moisture control (<= 11.0%), and characteristic pungent allium aroma. Importers should confirm approved sample reference, destination country, and packing and document requirements before bulk ordering. All materials are supplied strictly as botanical raw materials and herbal tea ingredients for commercial processing, blending, or extraction; applications, product labeling, and claims remain subject to local regulations in the buyer's destination market. Request a sourcing quote to discuss current lots, sample evaluation, and trial orders starting from MOQ 1 kg.

Botanical Identity & Origin: Mature Seed Morphology and Macroscopic Verification

In international trade and pharmacopoeial monographs, Jiu Cai Zi represents exclusively the dried mature seeds of Allium tuberosum Rottl. ex Spreng. (family Amaryllidaceae / Liliaceae). Mature seed heads (umbels) are harvested in late autumn when the capsules turn yellowish-brown and begin to dehisce. After drying, seeds are threshed and separated from capsule valves and pedicels. Macroscopic evaluation verifies distinctive morphological features: seeds are flattened-ovate, obovate, or irregularly triangular-ovate, measuring 3–4 mm in length and 2–3 mm in width. The surface is pitch-black (漆黑), dull or slightly glossy, with the convex dorsal side displaying fine reticular wrinkles and the flatter ventral side bearing 1–2 uneven longitudinal ridges. The hilum is small, located near the pointed base. In cross-section, the endosperm is greyish-white and dense. Crushing the seeds releases a distinct pungent, allium-like characteristic odor with a slightly bitter, pungent taste. Importers should verify that batches are not adulterated with Welsh onion seed (Allium fistulosum, Cong Zi 葱子, which has smaller, more angular seeds with sharper ridges) or garlic seed.

Commercial Export Cut Forms: Whole Raw Seeds, Wind-Cleaned Selected, Coarse Crushed, and Tea Bag Cut TBC

Overseas food, beverage, and botanical extraction manufacturers require differentiated physical specifications tailored to processing lines: 1) Whole Raw Seeds (韭菜子统货): Intact whole threshed seeds suitable for traditional decoctions, botanical wine steeping, and large-scale percolation extraction; 2) Wind-Cleaned Selected Grade (韭菜子精选色选货): Mechanically aspirated, gravity-destoned, and optically sorted black seeds with foreign matter <= 1.0% and plump seed ratio >= 95%, ideal for direct retail packing, clean-label blends, and specialty herbal formulas; 3) Coarse Crushed Granules (韭菜子粗破 / 1–2 mm): Coarsely cracked seed fragments that break the durable outer seed coat while preventing oil loss, enabling rapid, complete solvent mass-transfer during alcohol percolation; 4) Tea Bag Cut (TBC 0.8–2 mm, Dedusted): Precision milled seed cut sieved between 18-mesh and 40-mesh screens to yield free-flowing seed granules without powdery fines, ensuring clean infusion clarity and smooth volumetric dosing in high-speed ultrasonic tea packaging lines.

Physical Quality Checklist: Seed Plumpness, Destoning Purity, Moisture Control and Ash Limits

Maintaining consistent physical quality requires rigorous evaluation of key inspection parameters: 1) Destoning and Foreign Matter Screening: Because chive seeds are collected through field threshing, batches must pass through multi-stage vibrating screens, air-density separators, and magnetic destoners to eliminate soil particles, capsule husks, and weed seeds, maintaining foreign matter <= 1.5% (or <= 0.8% in optical selected grades); 2) Seed Plumpness and Immature Seed Ratio: Mature seeds must exhibit high density and solid endosperm; hollow or shriveled seeds should not exceed 5.0%; 3) Moisture Equilibrium Control: Seeds contain natural fatty oils; moisture must be controlled <= 11.0% to prevent seed lipid rancidity, fungal development, or insect infestation during transoceanic shipping; 4) Total and Acid-Insoluble Ash Standards: Total ash must not exceed 8.0%, with acid-insoluble ash <= 2.0%; 5) Approved Sample Reference: Importers should establish an approved sample reference for each lot to confirm seed color, fullness, destoning purity, and aroma profile prior to container loading.

Laboratory Screening & Compliance: Steroidal Saponin Profile, Safety Standards and Regulatory Boundaries

Quality assurance protocols combine macroscopic inspection with accredited laboratory screening: 1) Analytical Marker Verification: Thin-layer chromatography (TLC) identification confirms characteristic Allium tuberosum saponin profiles. Spectrophotometric and HPLC methods screen for steroidal saponins (such as tuberosides) and organic sulfur volatiles; 2) Contaminant Testing: Standard safety screening covers heavy metals (Lead Pb, Cadmium Cd, Arsenic As, Mercury Hg), sulfur dioxide residue (non-sulfured batches, SO2 < 10 ppm), and multi-residue pesticide compounds compliant with EU Regulation (EC) No 396/2005 or US FDA botanical dietary supplement guidelines; 3) Compliance and Classification Boundaries: Chinese chive seed is supplied exclusively as a botanical raw material and herbal tea ingredient. Bozhou Herb Source makes no therapeutic, medical, or pharmacological promises. Destination-country import classification (food ingredient, herbal tea, or dietary supplement), product labeling, and health claims remain the importer's responsibility and are subject to local regulations.

Export Packaging, Ocean Transit Protection and Inquiry Checklist

To preserve seed integrity and prevent moisture absorption and lipid oxidation across sea freight transit: 1) Export Packaging: Standard export packaging uses 10 kg or 15 kg heavy-duty 5-ply export master cartons lined with double food-grade polyethylene (PE) moisture-barrier inner liners. For bulk extraction plants, 25 kg woven polypropylene bags with inner poly-liners are also available; 2) Export Documentation: Shipments are supported by complete export documentation: Phytosanitary Certificate issued by China Customs (GACC), Certificate of Origin (CO), Commercial Invoice, Packing List, and lot-specific Certificate of Analysis (COA); 3) Inquiry Checklist: When requesting a quotation, please specify: preferred cut format (whole raw seeds, wind-cleaned optical selected grade, coarse crushed granules, or tea bag cut TBC 0.8–2 mm), target order quantity, destination country, packing and document requirements. Bozhou Herb Source supports sample evaluation and trial orders starting from MOQ 1 kg.

Useful external references

• European Pharmacopoeia (Ph. Eur.) Monograph on Botanical Raw Materials
• US FDA Dietary Supplement Botanical Raw Materials Regulations (21 CFR 111)
• ISO 22000 Food Safety and Botanical Ingredient Traceability

Originality note

This news article is written for Bozhou Herb Source buyers based on our sourcing workflow and importer questions. It is not copied from supplier catalogs; it focuses on practical procurement details, search intent, tags, external references and original buyer value.

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If you are comparing suppliers for chinese chive seed (jiu cai zi) cut grades wholesale: importer sourcing guide for dried allium tuberosum seeds, wind-cleaned grades, tea bag cut tbc, saponin screening, and export specifications, send your target specification, quantity, destination country and packaging requirements. Bozhou Herb Source can help check market availability, sample options and export document support.

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