Watercress Extract
Botanical Source: Nasturtium officinale
Appearance:Fine Brownish Yellow powder
Plant Part Used:Whole Herb
Certifications: ISO9001, FSSC22000, KOSHER, HALAL, HACCP, FDA
Test Method: UV
Specification:4:1,Polyphenol 5%
Packing Size: 25kg/drum
Transportation: Courier, Air, Ocean
MOQ: sample and small kgs trial order available, commercial order MOQ 25kg
Delivery: Ready stock, Prompt shipment
- Free Samples
- Quality Assurance
- 24/7 Customer Service
Product Introduction
High-Purity Watercress Extract for Animal Health – Natural Phytonutrient Solution with ≥2.5% Glucosinolates
Watercress Extract from Kingherbs Limited is a rich source of phytonutrients from Nasturtium officinale standardised to ≥2.5% glucosinolates and ≥1.0% phenylethyl isothiocyanate (PEITC) by HPLC. We use only pure water and food grade ethanol in our extraction method, which eliminates hazardous solvents while retaining the biological integrity. A fine brownish-yellow powder with 95% to 80 mesh particle size and 0.40-0.60 g/ml bulk density, for seamless integration in animal feed formulations. With over 25 years of botanical expertise and fully traceable approved planting bases, we regulate every aspect, from soil composition to harvest time, guaranteeing consistent active-ingredient content and avoiding the raw-material variations normally associated with sourcing from aquatic plants.

Watercress Extract COA
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Product Name
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Watercress Extract
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Batch Number
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Botanical Source
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Nasturtium officinale
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Batch Quantity
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300kg
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Plant Part Used
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Whole Herb
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Country of Origin
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China
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Type of Products
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Ratio Extract
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Active Ingredient Markers
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/
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Analysis Items
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Specifications
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Results
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Methods used
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Appearance
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Brownish Yellow Powder
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Conforms
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Visual test
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Odor & Taste
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Characteristic
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Conforms
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Organoleptic test
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Bulk Density
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35-55g/100ml
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Conforms
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ASTM D1895B
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Particle Size
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NLT 98% through 80 mesh
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Conforms
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AOAC 973.03
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Solubility
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Soluble in Water
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Conforms
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Visual
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Extract Ratio
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4:1
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4:1
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/
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Loss on Drying
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NMT 5.0%
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4.28%
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5g /105℃ /2hrs
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Ash Content
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NMT 5.0%
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4.32%
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2g / 525℃ /3hrs
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Extract Solvents
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Water
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Conforms
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/
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Heavy Metals
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NMT 10ppm
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Conforms
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Atomic Absorption
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Arsenic (As)
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NMT 2ppm
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Conforms
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Atomic Absorption
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Lead (Pb)
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NMT 2ppm
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Conforms
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Atomic Absorption
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Cadmium (Cd)
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NMT 1ppm
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Conforms
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Atomic Absorption
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Mercury(Hg)
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NMT 1ppm
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Conforms
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Atomic Absorption
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Sterilization Method
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High temperature & pressure for a short time of 5~10 seconds
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Microbiological Data
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Total Plate Count <10,000cfu/g
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<1000 cfu/g
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GB 4789.2
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Total Yeast & Mold <1,000cfu/g
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<100 cfu/g
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GB 4789.15
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E. Coli to be absent
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Absent
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GB 4789.3
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Staphylococcus to be absent
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Absent
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GB 4789.10
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Salmonella to be absent
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Absent
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GB 4789.4
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Packing and Storage
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Packed in fiber drum, LDPE bag inside. Net weight: 25kgs/drum.
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Keep well sealed, away from moisture, strong heat and sunlight.
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Shelf Life
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2 years if sealed and stored in the recommended conditions.
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Watercress Extract Benefits
Your animals deserve the defence system of nature. This Watercress Extract is a powerful inducer of Phase II detoxification enzymes, especially glutathione S-transferases, which help the liver function in livestock exposed to environmental contaminants. The high ORAC value suggests a good radical scavenging activity that protects cellular integrity during time of oxidative stress such as weaning or transit.
Glucosinolate breakdown products naturally help clean airways to promote respiratory health. Quercetin and lutein improve the health of reproductive tissues and the immune systems of young animals in breeding operations.
Our water-ethanol extraction maintains the plant's natural synergy and deals with the instability problems of raw watercress, without the use of artificial ingredients. You obtain shelf-stable nourishment with no water-borne infections typical to fresh aquatic harvesting.

Watercress Extract Applications
Feed Supplementation: Blend directly into premixes at 0.1–0.5% inclusion rates for poultry, swine, and ruminants. The fine particle size ensures uniform distribution.
Aquaculture Nutrition: Cold-process inclusion in fish and prawn feeds enhances detoxification pathways crucial to high-density farming systems.
Companion Animal Products: Perfect for useful pet treats and supplements targeting senior animal vitality and coat health.
Speciality Formulations: Special encapsulated versions are available for heat sensitive applications needing processing temperatures below 60°C.

Certifications
Kingherbs maintains compliance with international quality standards:
• ISO9001 Quality Management System Certificate
• FSSC22000 Food Safety System Certificate
• HACCP System Certificate
• HALAL Certification
• KOF-K Certification
• FDA Registration
• Part of Hunan Botanical Extract Association (HNBEA)

Packaging and Transportation
Standard packaging is 25kg fibre drums, double lined with food grade PE bags to protect your goods from moisture and light deterioration. We may dispatch samples by courier (3-5 working days), urgent orders by air freight, and bulk amounts by ocean freight. Our skilled logistics team will handle papers for smooth customs clearance. Sample and small trial orders are welcome. MOQ for commercial order is only 25kg.

Why Choose Us?
You are not simply buying an ingredient, you are buying a technical partner. Our application laboratory helps your formulation development with matrix-specific stability tests for animal feed. Bases for planting are strictly managed, soil quality and time of harvest are strictly controlled to prevent buildup of heavy metals which aquatic plants tend to accumulate. Fast solubility and clean colour is indicative of our pure extraction method. Standard specs or custom blends with other botanicals, vitamins or minerals, our one-stop solution covers everything from premix formulation to final soft gel capsules.

FAQ
Q: What is the main active compound and its content?
A: Our standard grade contains ≥2.5% glucosinolates (HPLC) and ≥1.0% phenylethyl isothiocyanate (PEITC). We can customize to your specification.
Q: Is it suitable for vegan and clean-label products?
A: Absolutely. It is 100% plant-based, non-GMO, and contains no artificial additives. Vegan and Kosher certificates are available.
Q: How stable is it during processing?
A: PEITC is heat-sensitive and volatile. We recommend cold-process or low-temperature (<60°C) formulation. For added stability, we offer encapsulated powder or liquid carriers upon request.
Warehouse & Shipping

Our Teams & Exhibitions

Contact Us
Ready to enhance your animal nutrition portfolio with Watercress Extract? Reach out to our team at info@kingherbs.com for technical specifications, samples, or custom formulation support.
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