Natural Preservative & Flavour Enhancer

CapBlock® Cultured Dextrose

CapBlock® Cultured Dextrose Powder is a clean-label natural preservative and mould inhibitor produced through advanced controlled fermentation of dextrose using proprietary, non-GMO organisms. The fermentation generates short-chain organic acids, natural metabolites and peptides — the active compounds that inhibit spoilage organisms and extend the shelf life of food products.

Unlike most natural preservatives, CapBlock® Cultured Dextrose is also a natural flavouring agent: it enhances flavour sensory while it preserves. This dual action makes it ideal for baked goods, processed cheese, sauces, salad dressings and dips, as well as meat and smallgoods and beverages — where both freshness and taste matter. It successfully replaces calcium propionate, potassium sorbate and other synthetic chemical preservatives, declared simply as “Cultured Dextrose” or “Natural Flavour.”

Effective at a low dosage of 0.5%–2.0% of total product weight, CapBlock® Cultured Dextrose is non-GMO, gluten-free, allergen-free, vegan, Halal and Kosher, FSSC 22000 certified, with an 18-month shelf life.

Product Specificiation

Specification Detail
Product Type Natural preservative & flavour enhancer
Source Fermented dextrose (non-GMO organisms)
Form Cream to tan free-flowing powder
Function Mould inhibitor; extends shelf life & enhances flavour
Dosage 0.5% – 2.0% (total product weight)
Moisture / Profile Soluble in water
Label Declaration Cultured Dextrose / Natural Flavour
Country of Origin Australia
Shelf Life 18 months
Storage Cool, dry place; away from heat & light
Certifications FSSC 22000, Non-GMO, Gluten-Free, Halal, Kosher, Vegan

Certifications

Why CapBlock® Cultured Dextrose?

  • Natural preservative: A clean-label preservative that extends shelf life by inhibiting the growth of spoilage organisms.
  • Mould & bacteria inhibitor: Broad-spectrum antimicrobial action against mould and bacteria, helping maintain food safety and freshness.
  • Flavour enhancer: A natural flavouring agent — the fermentation-derived organic acids and metabolites enhance the flavour sensory of the finished product.
  • Calcium propionate replacement: A clean-label natural alternative to calcium propionate, potassium sorbate and other synthetic chemical preservatives.
  • Effective at low dosage: Performs at just 0.5%–2.0% of total product weight.
  • Easy labeling: Declarable as “Cultured Dextrose” or “Natural Flavour” for a clean, recognisable ingredient list.
  • Clean label: All-natural, non-GMO, gluten-free and allergen-free, declared simply as cultured dextrose or natural flavour.
  • Natural origin: Produced through advanced controlled fermentation of dextrose with proprietary non-GMO organisms.
  • Active fermentation compounds: Contains short-chain organic acids, natural metabolites and peptides that deliver its preservative and flavour function.
  • Dual action: Preserves and enhances flavour at the same time — extending shelf life while improving the flavour profile.
  • Broad-spectrum antimicrobial: Inhibits mould and bacteria for enhanced shelf life and food safety.
  • Soluble powder form: A fine, off-white free-flowing powder that incorporates easily into food formulations.
  • Synthetic-preservative replacement: A natural alternative to calcium propionate, potassium sorbate and other chemical preservatives.
  • Bakery & Gluten-Free Baked Goods: Extends shelf life and inhibits mould in breads, rolls, muffins and cakes — without affecting yeast in yeast-raised products.
  • Meat & Poultry: A natural preservative for processed meats and poultry such as sausages, deli meats, ham and bacon, inhibiting bacterial growth and extending shelf life.
  • Cheese & Dairy: Helps prevent spoilage and maintain quality in processed cheese, yoghurt and dairy spreads.
  • Sauces, Dressings & Dips: Extends shelf life and enhances flavour in sauces, salad dressings, condiments and dips.
  • Beverages: Maintains freshness and extends shelf life in beverage applications.
  • Snack Foods: Inhibits microbial growth and maintains freshness in snacks and crackers.

Functions

Gluten Free Solutions
Gluten Free Solutions
Shelf Life Extension
Replace E-numbers
Shelf Life Extension
Shelf Life
Extension
Natural Preservatives
Natural Preservatives

Applications

Health Snack Bars
Gluten Free Baked Goods
Gluten Free Flat Breads/Breads
Smallgoods & Processed Meats
Beverages, Yoghurt & Premixes
Confectionery

Packing Options

Product Name Pack Sizes
CapBlock® Cultured Dextrose Powder 20 kg Bag (~44 lb)

CapBlock® Cultured Dextrose (bulk/B2B supplier)

Availability (bulk/B2B) in the following countries: United States United Kingdom Australia

Specs • Samples • Technical support

Frequently Asked Questions

CapBlock® Cultured Dextrose is created through the controlled fermentation of dextrose with Propionibacterium freudenreichii, producing organic acids — including lactic, propionic and acetic acid — along with natural metabolites and peptides. The mixture is then pasteurised, evaporated and spray-dried into a fine, off-white powder.

CapBlock® Cultured Dextrose has a characteristic cultured dextrose odour and is effective at low concentrations. As well as inhibiting mould and bacteria, it acts as a natural flavouring agent — enhancing the flavour profile of the finished product while it preserves, which makes it distinctive among clean-label preservatives.

The recommended dosage is 0.5% to 2.0% based on flour weight for baked goods. For meat, dairy, sauces, beverages and other products, calculate based on total product weight. Contact the Nexus Ingredient technical team for application-specific guidance.

 

Both are clean-label natural preservatives produced by fermentation. CapBlock® Cultured Dextrose is fermented from dextrose, doubles as a natural flavouring agent, and is well-suited to meat, dairy, sauces and beverages as well as bakery. CapBlock® Cultured Brown Rice is fermented from brown rice, is flavour-neutral, and is preferred where a "cultured brown rice" or "brown rice" declaration is wanted. Contact Nexus Ingredient for guidance on which fits your formulation.

CapBlock® Cultured Dextrose has a characteristic cultured dextrose flavour profile and acts as a natural flavouring agent, enhancing flavour sensory in the finished product. We recommend trialling at your target dosage to confirm the optimal rate for your application.

CapBlock® Cultured Dextrose Powder is available in a 20 kg bag. Custom packaging and larger volumes are available on request.

No. CapBlock® Cultured Dextrose Powder is specifically formulated to inhibit bacteria and moulds while leaving yeast active in yeast-raised baked goods. This makes it ideal for breads, rolls and other fermented bakery products where yeast activity must be preserved.

CapBlock® Cultured Dextrose Powder can be declared as "Cultured Dextrose" or "Natural Flavour." Both options result in a clean, natural and consumer-friendly label.

CapBlock® Cultured Dextrose Powder is FSSC 22000, Halal and Kosher certified, and Gluten-Free certified (third-party lab tested per lot). It is also vegan suitable, non-GMO and allergen-free. Full certificates are available on request.

Yes. CapBlock® Cultured Dextrose Powder is designed as a clean-label replacement for calcium propionate, potassium sorbate and other synthetic mould inhibitors. It provides equivalent or superior antimicrobial performance with a natural, recognisable ingredient declaration.

CapBlock® Cultured Dextrose Powder is suitable for baked goods (breads, rolls, muffins, cakes), dairy (cheese, yoghurt, dairy spreads), meat and poultry products, sauces and dressings, beverages, snack foods, and any application requiring natural mould and bacteria inhibition.

Contact info@nexusingredient.com or visit nexusingredient.com/request-sample. Include your company name, application and target market. Please use a business email address.

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