Beverage Case Studies

Calcium propionate, the main active ingredient in NaturalGARD cultured dextrose, shares the same effectiveness against bacteria and molds as sorbate, better than benzoate at stopping molds. Although it has little effect on enzymes and weak on bacteria, they are not a big concern because most drinks like sodas, sports drinks, juice drinks, coffee and teas are very acidic, with a pH below 4. Pasteurization also kills enzymes and bacteria, so they can’t grow in such an acidic environment. High purity NaturalGARD cultured dextrose could be the game changer for preserving beverages in a natural way.

Cultured dextrose is a suitable choice for clean label, zero or low-calorie drinks sweetened with stevia or monk fruit, it has been employed to perverse SweetLeaf sugar-free, all-natural stevia syrup or Lakanto simple syrup. Some drinks use calcium lactate as preservative and/or calcium fortifier, cultured dextrose containing calcium propionate is more potent as preservative, label friend, and also serves as calcium fortifier. Therefore, there may not be necessary to add additional sorbate or benzoate, like the popular PRIME energy drink. Simpler is always better.

Clean Label CBD Nanoemulsion Beverage

Clean label CBD (cannabidiol) nanoemulsion beverage containing 25mg CBD per bottle, no other preservative is added, no pasteurization was applied. Without NaturalGARD cultured dextrose, molds were observed in a week. The dosage(<0.1%) had no impact on color and flavor. Picture was taken at week 2 of storage at room temperature.

Only a specific type of cultured dextrose with high propionate content that can be used in small amounts (<0.1%) without affecting the color and taste of beverages works for this purpose. Most of the cultured dextrose or wheat products in the market are not suitable for beverage applications. Why? Please check here for insights.

CBD nanoemulsion and cultured dextrose
CBD nanoemulsion and cultured dextrose
High VC Beverage

Drinks made from commercial high VC orange flavored powder drink mix, which contains no preservatives. No pasteurization was applied. Without NaturalGARD cultured dextrose, spoilage was observed on day 11 stored at room temperature. The dosage (<0.1%) had no impact on color and flavor. Six months later no mold or spoilage was observed in drink preserved by cultured dextrose (~400ppm). The experiment is ongoing.

Be aware that benzoate should NOT be used with vitamin C (ascorbic acid)

High VC beverage
High VC beverage
Lemonade

A clean label lemonade made with all natural ingredients. HTST pasteurization was applied. Without NaturalGARD cultured dextrose, spoilage was observed around day 53 stored at room temperature. The right bottle has no sign of mold or spoilage at month 6, and the experiment is ongoing.

The dosage (~500ppm) had no impact on color and flavor.

lemonade with cultured dextrose
lemonade with cultured dextrose
Basic sugary beverages

Basic beverages made with only sugar and citric acid. one added some sunflower lecithin. No pasteurization was applied. With addition of 0.1% NaturalGARD cultured dextrose, no spoilage was observed after 6 months at room temperature. The dosage had no impact on color and flavor of the acidic sugary drinks. The experiment is ongoing.

Expert panel described 0.1% NaturalGARD cultured dextrose in water as: initially tart and astringent followed by some bitter taste, then pleasant underlying slight sweetness.

basic beverage with cultured dextrose
basic beverage with cultured dextrose