pH-Stabilized Oral Tobacco Buffer Composition
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Solution Overview
Problem
Oral tobacco products, especially moist ones, experience rapid pH drops over time due to natural chemical and biochemical processes, leading to reduced freshness and shelf life, and existing pH stabilization methods are inadequate in maintaining long-term stability without causing user irritation or prolonging production times.
Innovation Solution
A pH-stabilized oral tobacco composition using a combination of at least two pH stabilizing substances, including potassium carbonate and additional substances like trisodium phosphate, magnesium trisilicate, glycine, and their salts, to maintain a stable pH over 17 weeks at room temperature and 27 weeks at refrigerated temperatures, ensuring improved freshness and shelf life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a single pH stabilizing substance (e.g., magnesium carbonate) is used, then the manufacturing process is simple, but the pH stability over time is insufficient and production time is prolonged due to poor solubility
Solution Approach 1:
The patent applies preliminary action by pre-combining multiple pH stabilizing substances (potassium carbonate and at least one additional substance from the specified group) into a buffer system before adding it to the oral tobacco composition. This pre-prepared buffer ensures immediate and sustained pH stabilization upon contact, eliminating the need for prolonged production time associated with slowly dissolving single substances like magnesium carbonate.
Solution Approach 2:
The patent employs composite materials by creating a buffer comprising at least two different pH stabilizing substances (potassium carbonate combined with substances such as trisodium phosphate, magnesium trisilicate, glycine, or glutamic acid). This composite buffer system leverages the complementary properties of each component to achieve superior and sustained pH stability while maintaining rapid dissolution during manufacturing.
2Stability of the object's composition
If soda is added to increase pH, then pH stability is improved, but user irritation occurs at higher pH values
Solution Approach 1:
The patent applies parameter changes by carefully selecting and combining pH stabilizing substances that maintain the pH within an optimal range (above 7.0 but not excessively high). The buffer system comprising potassium carbonate and additional substances like trisodium phosphate, magnesium trisilicate, glycine, or glutamic acid adjusts and maintains pH parameters to achieve stability without causing irritation, unlike excessive soda addition.
Solution Approach 2:
The patent applies local quality by using different pH stabilizing substances with varying properties to achieve uniform pH distribution throughout the oral tobacco composition. The combination of potassium carbonate with substances having different buffering characteristics ensures localized pH control that prevents both excessive alkalinity (causing irritation) and acidification (reducing stability).
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 composition achieves a total pH drop of less than 0.7 at room temperature and less than 0.7 at refrigerated temperatures, significantly improving pH stability and extending the shelf life while maintaining sensory characteristics and inhibiting microbial growth.
Implementation Method 1
the pH in the oral tobacco product can be maintained with a combination of two or more pH stabilizing substances which both are approved as food additives to oral tobacco products
Data Source
Figure 1(a)~1(b)
Figure 2
AI summary
Disclosed is a pH-stabilized oral tobacco composition comprising a buffer of at least two pH stabilizing substances comprising potassium carbonate and at least one additional pH stabilizing substance that can maintain a low total drop in pH-value over prolonged time at ambient as well as refrigerated temperature, so that the freshness and shelf life of the oral tobacco composition can be improved.