Zinc Gluconate

Zinc gluconate is the most common used organic zinc source in food supplements, functional foods and beverages.

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CAS Registry Number
[4468-02-4]
Chemical Formula
C₆H₈O₇ Cₙ(H₂O)ₙ

Introduction

Zinc gluconate is produced by complete neutralisation of gluconic acid with a high purity zinc source and subsequent spray-drying.

Zinc gluconate is mainly used as a mineral source in functional food, beverages and food supplement preparations. Its excellent solubility properties makes it perfect for liquid and powdered applications. As an organic mineral source it is preferred in many applications over inorganic sources because of its superior bioavailability, physiological compatibility and nearly neutral taste compared to other zinc salts. Due to its skin-conditioning and antimicrobial properties, it is widely used in skincare products.

Zinc gluconate is supplied as a white to almost white, granular or crystalline powder. It shows a good solubility and fast dissolution speed in water and is practically insoluble in alcohol.

Functions

This ingredient offers you the following excellent functions.

  • Bioavailability/improved mineral absorption​
  • Direct compression​
  • Mineral fortification​

Specifications

Jungbunzlauer zinc gluconate is supplied in accordance with the requirements of the US Pharmacopeia (USP) and the Food Chemicals Codex (FCC) always in their latest versions.

The following granulation types are available:

  • Powder
  • Granular

Properties

  • White crystalline powder
  • Practically odourless
  • Nearly neutral taste profile
  • Mineral content of 12.5 – 14.6%
  • Excellent solubility, fast dissolution
  • Highly bioavailable
  • Allergen free

Legal aspects

In Europe, zinc gluconate is on the positive list of the EU Regulation (EC) No. 1925/2006 on food fortification. It is also listed in Directive 2002/46/EC of the European Parliament and the Council relating to food supplements as vitamins and mineral substances, which may be used in the manufacture of food supplements.

Furthermore, it is listed as mineral salt in the EU Regulation (EC) No. 609/2013 on food intended for infants and young children, food for special medical purposes, and total diet replacement for weight control.

The US Food and Drug Administration (FDA) affirmed zinc gluconate as Generally Recognized as Safe (GRAS) when used in accordance with good manufacturing or feeding practice (21CFR §582.5988).

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