Siliconized Glass Containers for Stable Liquid Plant Extract Storage

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Liquid plant extracts face challenges with physical and chemical instability, including turbidity, precipitation, pH fluctuations, and degradation during prolonged storage, which affect their shelf life and stability.

Innovation Solution

The use of a sealable, siliconized glass container with an inner silicone layer to store liquid plant extracts, which reduces interaction between the packaging material and the extract, thereby enhancing stability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If liquid plant extracts are stored in conventional glass containers, then the packaging is simple and inexpensive, but the extracts exhibit physical and chemical instability including turbidity, precipitation, and degradation during storage

Engineering Contradiction:
Improvestability of liquid plant extractVSAvoidpackaging structure complexity
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

A silicone layer is applied as an intermediary between the glass container wall and the liquid plant extract. This silicone layer acts as a mediator that prevents direct contact between the glass and the extract, thereby reducing harmful interactions while maintaining the simplicity of the overall packaging structure. The silicone layer serves as a protective barrier that stabilizes the extract without requiring complex packaging modifications.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The packaging system becomes a composite structure combining glass, silicone layer, and liquid plant extract. The silicone layer (approximately 15-50 nm thick) creates a composite interface that combines the inertness of glass with the stability-enhancing properties of silicone, resulting in improved extract stability while keeping the packaging design relatively simple.

Inventive Principle:
Principle #40Composite materials

2Stability of the object's composition

If the glass container is made completely inert to prevent any interaction, then extract stability improves, but glass is not completely inert and releases metal ions that catalyze degradation reactions

Engineering Contradiction:
Improvechemical stability of plant extractVSAvoidmetal ion release from glass
Core Design Contradiction:
Stability of the object's compositionVSObject-affected harmful factors

Solution Approach 1:

The silicone layer serves as an intermediary barrier that completely prevents metal ions from the glass container from contacting and catalyzing degradation reactions in the liquid plant extract. By placing the extract in direct contact with silicone rather than glass, the harmful catalytic effect is eliminated while maintaining container integrity.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent converts the potential harm of glass metal ion release into a benefit by using silicone as a protective layer. The silicone layer, which could potentially interact with the extract, actually provides a stabilizing effect that prevents the harmful catalytic degradation that would otherwise occur through glass-metal ion interactions.

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

3Ease of operation

If siliconeization is applied to enable sliding of packaging components, then dispensing function is enabled, but the silicone layer may interact with and degrade the extract over prolonged storage

Engineering Contradiction:
Improvedispensing functionVSAvoidstability of liquid plant extract
Core Design Contradiction:
Ease of operationVSStability of the object's composition

Solution Approach 1:

The siliconeization is applied locally and selectively - sufficient to enable the sliding function for dispensing but not excessive to the point of causing degradation. The controlled thickness (15-50 nm) and distribution of the silicone layer ensure functional performance while minimizing harmful interactions with the extract over prolonged storage periods.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent optimizes the silicone layer parameters (thickness, composition, application method) to achieve the desired balance between dispensing functionality and extract stability. By controlling the silicone layer to be thin (15-50 nm) and uniformly distributed, the system achieves ease of operation while minimizing chemical interactions that could degrade the extract.

Inventive Principle:
Principle #35Parameter changes

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 siliconized glass container significantly reduces turbidity and precipitation, stabilizes pH, and delays chemical degradation, maintaining the efficacy of liquid plant extracts for extended periods.

Implementation Method 1

the inner wall of the glass is siliconized

Methodology Applied
Scientific EffectSiliconization: Coatings

Implementation Method 2

Siliconization is usually required for dispensing devices whose function can be triggered by the movement of parts of the packaging

Methodology Applied
Scientific EffectAdsorption: Adsorption

Implementation Method 3

Their physical and chemical instability, as well as their susceptibility to microbiological changes, is well known. This instability can lead to turbidity, precipitation, color changes, pH fluctuations, and various degradation processes of the components.

Methodology Applied
Scientific EffectChemical stability:

Implementation Method 4

Largely inert rubber and plastic materials with strict specifications regarding leachable components, and glass, are the most commonly used packaging materials.

Methodology Applied
Scientific EffectPhysical containment: Physical Containment

Data Source

PatentEP4373456B1Use of siliconized glass containers for liquid plant extracts
Publication Date: 2025.11.26 BIONORICA AG
  • EP4373456B1 patent drawingFigure 1~2
  • EP4373456B1 patent drawingFigure 2
  • EP4373456B1 patent drawingFigure 3

AI summary

The present invention relates to the use of a closable glass container for storage of liquid plant extracts, the inner glass wall being coated with silicone.