Kale Powder
Raw material name: Kale
Appearance color: Green powder
Product mesh: 80-100 mesh
Packaging method: 1KG/aluminum foil bag;25KG/cardboard drum
Storage method: Keep cool and ventilated, dry and sealed.
Shelf life: 24 months
Technical Data Sheet (TDS) & Nutrient Standard
| Analytical Parameter | Target Specification Limit | Typical Batch Result | Validated Methodology |
|---|---|---|---|
| Taxonomic Botanical Source | Fresh leaves of Brassica oleracea var. sabellica | Verified | TLC Profile Match |
| Active Glucosinolates | ≥ 1.5% (Naturally occurring) | 1.82% | HPLC Quantification |
| Active Chlorophyll | ≥ 800 mg / 100g (Deep emerald matrix) | 875 mg / 100g | Spectrophotometry |
| Physical Granulometry | D90 ≤ 125 μm (Passed through 120 mesh) | Complies | Laser Particle Sizing |
| Moisture (Loss on Drying) | ≤ 6.0% | 4.2% | Oven Dehydration (105°C, 2 hrs) |
| Insoluble Dietary Fiber | ≥ 25.0% (Natural cellular fiber) | 27.8% | AOAC Method 985.29 |
| Pesticide Residues | Strictly Complies with EU & US MRL Regulation | ND / Complies | GC-MS/MS / LC-MS/MS |
| Heavy Metal Contamination | Pb ≤ 1.0 ppm, As ≤ 0.5 ppm, Cd ≤ 0.5 ppm | Complies | ICP-MS (USP <233>) |
Formulation Edge: Engineering a Superior Superfood Base
For R&D formulators, standard dehydrated green vegetable powders present significant challenges, including dull (yellow-brown) color degradation, intense sulfurous or bitter off-notes, and high microbiological loads.
Xi'an Tihealth addresses these industrial bottlenecks at the engineering level. By utilizing a precision steam-flash blanching step, we instantly deactivate **polyphenol oxidase (PPO)**, preventing enzymatic browning and protecting the highly sensitive chlorophyll and antioxidant structures from conversion into pheophytin. Combined with a low-temperature, dehydration cycle and cryogenic micronization, our powder ensures organoleptic neutrality, a vibrant green appearance, and seamless dissolution in clean-label formulas.
Scientific Evidence: High-Value Phytochemical Properties
As a high-quality cruciferous plant, our kale powder is exceptionally rich in glucosinolates (the bio-precursors to active sulforaphane) and stable polyphenols. These compounds act as powerful indirect antioxidants, upregulating endogenous cellular Phase II detoxification enzymes to neutralize free radicals and protect systemic cell structure from oxidative stress.
Our kale powder provides a highly bioavailable plant-based source of Vitamin K1. This crucial fat-soluble micronutrient serves as an essential cofactor for the carboxylation of osteocalcin-supporting skeletal bone mineralization-while assisting in the regulation of healthy blood coagulation kinetics and vascular elasticity.
Naturally concentrated in the carotenoids Lutein and Zeaxanthin, our whole-food powder acts as an organic building block to support macular pigment optical density (MPOD). Formulators frequently integrate our powder in premium vision-support formulas to help filter blue light and protect phototargeted ocular tissues.
Advanced Processing & Dehydration Pipeline
1. Triple-Bubble Wash & Blanching
Leaves are mechanically harvested and triple-cleansed using industrial bubble washing systems to remove soil. A subsequent steam-flash blanching deactivates browning enzymes (PPO) while preserving raw chlorophyll content.
2. Low-Temperature Dehydration
Using advanced vacuum convection air drying systems (or low-temperature freeze-drying for ultra-premium specs), moisture levels are reduced to ≤6.0% without triggering thermal decomposition of vitamins and glucosinolates.
3. Cryogenic Micronization
The dry leaves are micronized in a temperature-monitored cryogenic grinding mill. This eliminates the frictional heat of standard milling which burns organic powders, yielding a uniform 80-120 mesh particle range.
B2B Packaging, Logistics & Quality Management
Because natural chlorophyll is highly sensitive to UV light and ambient humidity, Xi'an Tihealth utilizes strict, high-barrier packaging systems operating under an ISO9001:2015 Quality Management System to secure standard shelf-life performance and prevent enzymatic browning during cross-border transit.
| Shipping Class | Unit Weight | Opaque Packaging Configuration |
|---|---|---|
| R&D Pilot / Samples | 1kg - 5kg | Heavy-Duty Vacuum-Sealed Opaque Aluminum Foil Bag |
| Commercial Bulk Cargo | 20kg - 25kg | Aseptic Double Opaque PE Inner Liners inside Kraft Cardboard Drum |
Custom Clearance, Shipping & B2B Logistics
Request 2026 Wholesale Quotes & Lab Reports
Formulation & Technical FAQ
Q1: Will your bulk kale powder dissolve completely in clear liquid formulations or ready-to-drink (RTD) beverages?
No. Kale is a whole-food botanical containing ≥ 25.0% insoluble dietary fiber (cellulose and hemicellulose). While our cryogenic micronization (80-120 mesh) reduces particle size to ensure the powder disperses seamlessly and stays in suspension with a silky, grit-free mouthfeel, it will not yield a clear, fully dissolved liquid solution. Formulators should expect a classic, natural green whole-food suspension. If absolute solubility is required, please consult our R&D team for clarified juice extract options.
Q2: Why does generic kale powder sometimes carry an extremely bitter, cabbage-like, or sulfurous aroma?
Cruciferous vegetables naturally possess glucosinolates which, when ruptured in the presence of the endogenous enzyme myrosinase, break down into pungent, bitter isothiocyanates. Our proprietary flash-steam blanching process deactivates the myrosinase enzyme before it can hydrolyze the glucosinolates. This thermodynamic stabilization retains the healthy glucosinolates intact while yielding a sweet, mild green profile that reduces the need for expensive flavor-masking excipients in your solid beverage blends.
Q3: Leafy greens are known hyper-accumulators of environmental toxins. How does Tihealth control heavy metals and pesticide residue?
This is the single most critical audit factor for premium green supplement brands. Because leafy brassicas absorb heavy metals from soil with high affinity, we strictly harvest our crop from pre-screened, ecologically isolated GAP cooperative fields. We perform mandatory batch-level testing using ICP-MS for heavy metals and GC-MS/MS for multi-pesticide screens, guaranteeing absolute compliance with both the ultra-strict European Food Safety Authority (EFSA) Maximum Residue Limits (MRLs) and California Proposition 65.
Q4: Chlorophyll breaks down easily, turning yellow or brown during storage. How do you guarantee the emerald green color remains stable?
The conversion of chlorophyll to pheophytin (the dull yellow-brown byproduct) is catalyzed by moisture, acids, and enzymatic oxidation. We combat this transition in three ways: First, the rapid blanching locks the magnesium atom in the chlorophyll ring; second, we dry the material to an ultra-low moisture limit (≤ 6.0%) via Karl Fischer controls; third, we package our bulk powder strictly under vacuum nitrogen flush in multi-layer opaque aluminum foil bags inside heavy cardboard drums, blocking out photo-oxidation and moisture ingress entirely.
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