Traditional Japanese Black Vinegar Concentrate
What is Kurozu Extract Powder?
Kurozu Extract Powder is made from traditional Japanese brown rice black vinegar, naturally fermented and aged in jars in Fukuyama-cho, Kirishima City, Kagoshima Prefecture. It is concentrated and freeze-dried into a powder for use in supplements, sachets and functional food formulations.
The ingredient contains nearly 12 times the total amino acids found in liquid black vinegar, along with organic acids and acetic acid from fermented black vinegar. It gives brands a Japan-origin ingredient with traditional background, documented nutritional values and formulation flexibility.
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Suitable Product Formats
Concentrated Amino Acid Profile
Contains 8,080 mg total amino acids per 100 g, around 12 times higher than liquid black vinegar.
Traditional Jar Fermentation
Made using brown rice, koji and groundwater, with saccharification, alcoholic fermentation and acetic fermentation occurring naturally in a single jar.
Brown Rice Based Ingredient
Unlike regular rice vinegar made from polished rice, Kurozu uses brown rice, contributing to its amino acid profile
Documentation Available Upon Request
Technical document covering appearance, microbiology, storage, shelf life and packaging details.
Document covering composition, origin, process, GMO status, allergens and pesticide screening.
Nutritional Facts (per 100g)
Energy
357 kcal
Protein
12.6g
Fat
0.3g
Carbs
74.1g
Total Amino Acids
8,080mg
Sodium
28.3mg
Acetic Acid
2.64g
Benefits
Kurozu Extract Powder is made from brown rice black vinegar produced in Fukuyama-cho, Kagoshima, Japan. The vinegar is fermented and aged in traditional jars using brown rice, koji and groundwater, then concentrated and freeze-dried into a powder for easier formulation.
For contract manufacturers, ingredient distributors and brands, it offers a Japan-origin fermented ingredient with amino acids, organic acids and acetic acid. It is suitable for capsules, tablets, sachets, beverages and functional food concepts that need a traditional Japanese ingredient with documented composition.
Metabolic Wellness Support
Human studies have evaluated Kurozu intake for body composition and metabolic health markers.
Stress and Mental Wellness
Clinical data has studied its role in mood-related markers such as tension and fatigue.
Blood Health Support
Research has explored Kurozu for blood flow, blood pressure and circulation-related markers.
Packaging Format
Carton box with double layered polyethylene inner bag
Net Weight
10kg per package
Shelf Life
2 years from date of manufacture, stored unopened in a cool, dark place
Frequently asked questions
Is Kurozu Extract Powder backed by clinical evidence for use in supplement formulations?
Yes. Human clinical trials at 1,000mg per day over 8 weeks confirmed measurable results in visceral fat reduction, waist circumference, stress markers, and blood health with no adverse effects reported, giving your brand a credible, science-backed ingredient story.
How does Kurozu Extract Powder differ from standard black vinegar or rice vinegar ingredients?
The concentration process elevates total amino acids to 8,080mg per 100g, nearly 12 times that of liquid black vinegar and approximately 60 times that of standard rice vinegar, making it significantly more potent and effective for functional formulations.
Is it clean label and free from additives?
Yes. Kurozu Extract Powder contains no added salt, sugar, or additives. It is non-GMO, allergen-free, and screened for 513 agricultural chemicals, making it fully compatible with clean label product requirements in regulated global markets.
What formats can this ingredient be formulated into?
It works directly in capsules, tablets, softgels, sachets, functional beverages, and fortified food products, giving your development team full flexibility across supplement and functional food categories.
What is the minimum order quantity and lead time?
Kurozu Extract Powder is supplied in 10kg carton units. Lead time is approximately 90 days from order confirmation. Contact us directly to discuss volume requirements and availability.
Can we verify the origin and traceability of the raw materials?
Yes. Brown rice is sourced from the Kyushu region, primarily Kagoshima Prefecture, and full raw material documentation including ingredient composition, manufacturing process, GMO status, and pesticide screening is available upon request.