Cassia Seed (Jue Ming Zi) Cut Grades Wholesale: Importer Sourcing Guide for Raw Mature Seeds, Stir-Baked Roasted Seeds, Tea Bag Cut TBC, and Export Specifications

Target keywords: cassia seed wholesale, jue ming zi supplier, cassia obtusifolia bulk, senna obtusifolia seed, roasted cassia seed tea, cassia seed tea bag cut tbc, chrysophanol aurantio-obtusin hplc, bozhou herbal tea ingredients

Tags: Cassia Seed, Jue Ming Zi, Cassia obtusifolia, Herbal Tea Ingredients, Cut Grades, Tea Bag Cut TBC, B2B Sourcing, Export Specifications

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

Bozhou Herb Source supplies bulk cassia seed wholesale (Cassia obtusifolia L. / Senna obtusifolia and Cassia tora L., Jue Ming Zi, 决明子) across four standardized commercial export physical forms: 1) Raw Mature Whole Seeds (生决明子 / 统货与风选色选精选货, 3–6 mm intact rhomboid-cylindrical glossy greenish-brown to dark brown seeds, gravity destoned and optically sorted for botanical extraction and decoction); 2) Stir-Baked Roasted Whole Seeds (炒决明子 / 熟决明子, precision drum-roasted until the hard seed coat micro-fissures and releases a rich nutty, coffee-like roasted aroma for direct hot-water infusion and RTD grain-herb beverages); 3) Coarse Crushed Granules (决明子粗碎 / 破壁颗粒 1–2.5 mm, uniformly cracked raw or roasted seed grits that rupture the dense waxy testa to accelerate extraction yield); 4) Tea Bag Cut (TBC 0.8–2 mm / 10–40 mesh, precision rotary-cut and air-cyclone dedusted for high-speed pyramid and single-chamber filter-paper tea sachet filling lines). Consolidated in Bozhou from prime autumn harvests in Anhui, Henan, Hubei, and Guangxi, export-grade Jue Ming Zi requires verification of botanical identity (Cassia obtusifolia L.), sulfur-free drying (SO2 < 10 ppm), strict moisture control (<= 11.0%), and HPLC assay of characteristic anthraquinone markers including chrysophanol (>= 0.20%) and aurantio-obtusin (>= 0.080%). 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: Cassia obtusifolia vs. Cassia tora and Macroscopic Verification

In international botanical trade and pharmacopoeial specifications, Jue Ming Zi represents the dried ripe seed of Cassia obtusifolia L. (syn. Senna obtusifolia (L.) H.S.Irwin & Barneby) or Cassia tora L. (family Fabaceae / Leguminosae). Pods are harvested in late autumn when fully mature, sun-dried, and threshed to collect the dense, hard seeds. Macroscopic evaluation distinguishes the two botanical sources and verifies batch authenticity: Cassia obtusifolia seeds are slightly rhomboid-cuboid or short-cylindrical (3–6 mm long, 2–3.5 mm in diameter) with one end obliquely pointed and the other end truncate; the outer testa is greenish-brown or dark brown, smooth and glossy, showing a prominent light brown linear-concave rib (raphe) on each of the two opposite flat sides. Cassia tora (Xiao Jue Ming 小决明) seeds are slightly smaller and more cylindrical (3–5 mm long, 2–2.5 mm wide) with a greenish-brown surface and a broad light yellowish-brown band on both sides. The seed texture is extremely hard and difficult to crush intact; in cross-section, the testa is thin and the endosperm is greyish-white and translucent, enclosing two yellow-to-orange folded S-shaped cotyledons. Raw seeds have a faint odor and a slightly bitter, mucilaginous bean-like taste, whereas roasted seeds emit a pronounced toasted aroma.

Commercial Export Cut Forms: Raw Optical-Sorted Seeds, Stir-Baked Roasted Seeds, Crushed Grits, and Tea Bag Cut TBC

Overseas herbal tea brands, RTD beverage bottlers, and botanical extraction plants specify physical formats matched to their processing machinery: 1) Raw Optical-Sorted Whole Seeds (生决明子色选精选货): Double-winnowed, gravity-destoned, magnetic-screened, and optical-color-sorted intact raw seeds with purity >= 99.0% and moisture <= 11.0%, procured by botanical extractors and manufacturers running in-house roasting ovens; 2) Stir-Baked Roasted Whole Seeds (炒决明子 / 低温慢烘焙熟货): Processed in temperature-controlled rotary drum roasters (160–190°C) until the seeds swell slightly, turn uniform reddish-brown to dark coffee-brown, and develop micro-cracks across the seed coat; roasting caramelizes seed polysaccharides, reduces raw herbaceous astringency, and enables rapid release of golden-amber liquor in whole-seed pyramid tea bags and East Asian barley-cassia bottled teas; 3) Coarse Crushed Granules (生/炒决明子粗碎 1–2.5 mm): Because intact raw cassia seeds have an impermeable waxy cuticle, roller-cracking the seeds into 1–2.5 mm grits increases solvent contact area and percolation efficiency; 4) Tea Bag Cut (TBC 0.8–2 mm / 10–40 Mesh, Dedusted): Precision milled and multi-deck sieved roasted or raw seed granules with fine powder (< 60 mesh) aspirated below 1.5%, ensuring free-flowing volumetric dosing, clean infusion clarity, and zero seal contamination on high-speed tea sachet machines.

Physical Quality Checklist: Destoning Purity, Roasting Uniformity, Moisture Equilibrium and Ash Limits

Because cassia seeds are mechanically threshed from field-grown legume pods, rigorous physical cleaning and thermal process control are essential for export lots: 1) Gravity Destoning & Magnetic Separation: Field lots must pass through air-screen cleaners, specific-gravity destoners, and high-gauss neodymium magnetic traps to eliminate quartz sand, soil clods, pod fragments, and metallic wear particles, maintaining total foreign matter <= 1.0% (<= 0.5% for optical-sorted tea grades); 2) Roasting Degree & Over-Char Control: For stir-baked lots, roasting temperature and residence time must be tightly calibrated against an approved sample reference so seeds achieve full aroma development with carbonized/charred black seeds controlled below 2.0%; 3) Moisture Equilibrium Control: Moisture must be maintained <= 11.0% for raw seeds and <= 8.0–9.0% for roasted seeds and TBC cuts to prevent lipid oxidation, rancid off-notes, or mold growth during ocean transit; 4) Ash Standards: Total ash must not exceed 5.0%, with acid-insoluble ash <= 1.0%.

Laboratory Screening & Compliance: Chrysophanol & Aurantio-Obtusin HPLC Assay, Safety Limits and Regulatory Boundaries

Quality assurance combines macroscopic authentication with accredited laboratory testing: 1) Active Marker HPLC Quantification: High-Performance Liquid Chromatography (HPLC) quantifies characteristic anthraquinone derivatives on a dried basis—specifically chrysophanol (大黄酚, pharmacopoeial baseline >= 0.20% for raw seed and >= 0.12% for roasted seed) and aurantio-obtusin (橙黄决明素, >= 0.080%), alongside emodin, physcion, and obtusifolin; 2) Contaminant & Multi-Residue Screening: Export batches undergo screening for heavy metals (Lead Pb, Cadmium Cd, Arsenic As, Mercury Hg), aflatoxins (B1, B2, G1, G2), sulfur dioxide residue (sulfur-free verification SO2 < 10 ppm), microbial load (crucial for cold-brew or direct-infusion roasted tea cuts), and multi-residue pesticides compliant with EU Regulation (EC) No 396/2005, US FDA botanical guidelines, and Japanese Positive List / Korean MFDS limits; 3) Compliance and Classification Boundaries: Cassia 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, roasted herbal infusion, or dietary supplement), anthraquinone regulatory review, product labeling, and marketing claims remain the importer's responsibility and are subject to local regulations.

Export Packaging, Companion Formulations and B2B Inquiry Checklist

To preserve seed aroma, prevent moisture re-absorption, and protect roasted seed oils from oxidation during sea or air freight: 1) Export Packaging: Whole and TBC cassia seeds are packed in 10 kg, 15 kg, or 20 kg heavy-duty 5-ply corrugated export master cartons lined with double food-grade polyethylene (PE) or aluminum-foil moisture-barrier inner bags (recommended for roasted TBC grades), or in 25 kg multi-wall woven polypropylene / kraft paper bags with PE inner liners for bulk industrial buyers; 2) Companion Botanical Consolidation: Importers frequently consolidate Cassia Seed in mixed trial or container orders alongside Chrysanthemum Flower (Ju Hua), Hawthorn Fruit (Shan Zha), Lotus Leaf (He Ye), Mulberry Leaf (Sang Ye), Tangerine Peel (Chen Pi), Goji Berry, and Barley Malt (Mai Ya); 3) Export Documentation & Inquiry Checklist: Shipments are supported by Phytosanitary Certificate (GACC), Certificate of Origin (CO), Commercial Invoice, Packing List, and lot-specific Certificate of Analysis (COA). When requesting a quotation via WhatsApp (+86 180 5674 8824) or email (xie565699861@gmail.com), please specify preferred processing state and cut grade (raw optical-sorted whole seeds, stir-baked roasted whole seeds, 1–2.5 mm coarse crushed grits, or tea bag cut TBC 0.8–2 mm), target order quantity, destination country, packing and document requirements. MOQ starts from 1 kg for sample evaluation and pilot trials.

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 cassia seed (jue ming zi) cut grades wholesale: importer sourcing guide for raw mature seeds, stir-baked roasted seeds, tea bag cut tbc, 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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