Tea Preservative Composition for Clean Label Anti-Fungal Protection
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Solution Overview
Problem
There is a need for 'clean label' preservatives that provide anti-fungal activity similar to sorbates, particularly in beverage products, as consumers increasingly seek natural alternatives with reduced synthetic preservatives, and existing natural alternatives often lack sufficient anti-fungal efficacy.
Innovation Solution
A preservative composition comprising hexanal, E-2-hexenal, E-2-hexenol, E-linalool oxide, methanol, and methyl salicylate, with a total concentration of 10 ppm to 10000 ppm, and a linalool concentration ratio of 1:14 to 1:800, effectively inhibits microbial spoilage in tea products without impacting their sensorial properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional preservatives like sorbates and benzoates are used, then anti-fungal activity and shelf life are improved, but flavour quality and consumer acceptance deteriorate
Solution Approach 1:
The patent changes the chemical parameters of the preservative system by using a mixture of volatile aroma compounds (hexanal, E-2-hexenal, E-2-hexenol, E-linalool oxide, methanol, and methyl salicylate) at specific concentrations (total 10-10000 ppm) instead of traditional sorbates or benzoates. This parameter change maintains anti-fungal efficacy while eliminating flavour impairment and synthetic additive concerns.
Solution Approach 2:
The invention employs a composite preservative system combining multiple volatile compounds that work synergistically. The specific combination of hexanal, E-2-hexenal, E-2-hexenol, E-linalool oxide, methanol, and methyl salicylate creates a composite material that provides broad-spectrum anti-fungal activity while maintaining natural flavour profiles, resolving the contradiction between efficacy and flavour quality.
2Duration of action of stationary object
If synthetic preservatives are used to ensure shelf life, then microbial spoilage is prevented, but consumer demand for clean label products is not met
Solution Approach 1:
The patent uses volatile aroma compounds that are naturally occurring and perceived as safe by consumers. These compounds evaporate over time, leaving no residual synthetic preservatives in the final product, thus meeting clean label requirements while maintaining shelf life during the product's consumption period.
Solution Approach 2:
The volatile aroma compounds serve dual functions: they provide preservative activity against microorganisms and simultaneously contribute to the desired aroma and flavour of the beverage. This self-service approach eliminates the need for separate synthetic preservatives, satisfying both shelf life and clean label consumer demands.
3Adaptability or versatility
If natural alternatives to sorbates are used, then consumer acceptance is improved, but anti-fungal activity is insufficient
Solution Approach 1:
The patent merges multiple individual volatile compounds (hexanal, E-2-hexenal, E-2-hexenol, E-linalool oxide, methanol, and methyl salicylate) into a unified preservative system. The synergistic interaction between these compounds produces anti-fungal activity that is sufficient to replace sorbates, while each individual compound remains naturally occurring and consumer-accepted.
Solution Approach 2:
The volatile aroma compound mixture serves multiple functions: it provides anti-fungal protection, maintains flavour quality, contributes to product aroma, and satisfies clean label requirements. This multi-functionality resolves the contradiction by making the preservative system as versatile and effective as traditional sorbates while meeting consumer preferences.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The preservative composition effectively extends the shelf life of tea products by inhibiting fungal and yeast growth, allowing for reduced levels of synthetic preservatives like sorbates and benzoates, while maintaining the quality and flavor of the beverages.
Implementation Method 1
certain volatile aroma compounds are effective at preventing the proliferation of food spoilage microorganisms, particularly fungi such as moulds and yeasts
Data Source
AI summary
The invention relates to a tea product comprising a preservative composition, wherein the tea product is a ready- to-d rink beverage or a beverage concentrate, and the preservative composition comprises: (A) hexanal; (B) E-2-hexenal; (C) E-2-hexenol; (D) E-linalool oxide; (E) methanol; and (F) methyl salicylate, wherein the total concentration of (A) + (B) + (C) + (D) + (E) + (F) in the tea product is 10 ppm to 10000 ppm, and wherein tea product comprises linalool at a concentration such that the ratio of the linalool concentration to the total concentration of (A) + (B) + (C) + (D) + (E) + (F) in the tea product is 1:14 to 1 :800.