Advanced Stevia Extraction: Optimized Glycoside Production

Publication ID: 24-11856972_0006_PTD
Published: October 26, 2025
Category:Direct Improvements & Enhancements

Legal Citation

pr1or.art Inc., “Advanced Stevia Extraction: Optimized Glycoside Production,” Published Technical Disclosure No. 24-11856972_0006_PTD, Published October 26, 2025, available at https://archive.pr1or.art/24-11856972_0006_PTD
This technical disclosure describes improvements that would be readily apparent to a Person Having Ordinary Skill In The Art (PHOSITA) when considered in combination with the foundational architecture disclosed in U.S. Patent No. 11,856,972.

Background and Problem Solved

The original patent (Stevia extracts) disclosed a process for preparing compositions comprising steviol glycosides. However, the existing process has limitations in terms of RebM content, sweetness intensity, and flavor profile. The present invention addresses these limitations by introducing a cultivar selection module, processing module, and real-time monitoring system to optimize stevia extract production and create novel applications.

Novelty and Inventive Step

The present invention provides a novel and non-obvious solution to the limitations of existing stevia extraction processes by introducing a cultivar selection module, processing module, and real-time monitoring system. The invention's novelty lies in the combination of these components, which enables the optimization of stevia extract production, enhancement of sweetness intensity, and creation of novel stevia-based flavor enhancers.

Alternative Embodiments and Variations

Alternative embodiments of the invention include using different types of sensors for real-time monitoring, implementing various blending ratios for stevia-based sweeteners, and utilizing different molecular techniques for generating Stevia rebaudiana cultivars with improved RebM content.

Potential Commercial Applications and Market

The present invention has significant commercial potential in the food and beverage industry, particularly in the development of low-calorie sweeteners and flavor enhancers. The invention's ability to optimize stevia extract production and enhance sweetness intensity makes it an attractive solution for manufacturers seeking to reduce sugar content in their products.

CPC Classifications

SectionClassGroup
A A23 A23L2/60
A A01 A01H4/005
A A01 A01H4/008
A A01 A01H5/12
A A01 A01H6/1488
A A21 A21D2/181
A A21 A21D2/36
A A21 A21D13/062
A A23 A23C9/1307
A A23 A23G3/36
A A23 A23G4/06
A A23 A23L2/52
A A23 A23L2/54
A A23 A23L27/36
A A23 A23L33/105
A A61 A61K8/9789
A A61 A61Q1/00
A A61 A61Q11/00
C C07 C07H1/08
C C07 C07H15/24
C C07 C07H15/256
C C12 C12N15/8282
A A23 A23G3/42
A A23 A23G4/10
A A23 A23V2002/00
A A23 A23V2250/262
A A61 A61K36/00

Field of Art

Agricultural biotechnology and food science, specifically focused on plant breeding, extraction techniques, and high-intensity sweetener production with expertise in Stevia rebaudiana cultivar development and steviol glycoside processing

Person of Ordinary Skill (PHOSITA) Profile

A professional with advanced degree in plant biotechnology or food science, experienced in molecular breeding techniques, extraction methodologies, and analytical characterization of plant-derived sweeteners, familiar with genetic modification and selective breeding strategies

Obviousness Rationale

A PHOSITA would recognize that the PTD represents predictable variations on the source patent's core teachings, utilizing standard techniques in cultivar selection, extraction optimization, and sweetener enhancement that are well-established in the field of stevia glycoside production. The disclosed modifications represent incremental improvements using known methodological approaches that would be apparent to a skilled practitioner seeking to refine stevia extract quality and sweetness intensity.

Obvious Combinations & Variations

Source Patent Element
Stevia rebaudiana leaves obtained from specific cultivars with enhanced glycoside content
PTD Variation
Introducing molecular techniques and selective breeding to further enhance RebM content beyond existing cultivars
Obviousness Reasoning
Predictable extension of existing breeding techniques, using known genetic modification strategies to incrementally improve glycoside concentration
Source Patent Element
Extraction process for steviol glycosides with purification steps
PTD Variation
Adding real-time monitoring system to optimize extract quality during processing
Obviousness Reasoning
Application of standard process control techniques to improve extraction efficiency, representing a known approach to refining biotechnological processes
Source Patent Element
Stevia extract with total steviol glycoside content measurement
PTD Variation
Blending extracted glycosides with other sweeteners to enhance flavor profile and sweetness intensity
Obviousness Reasoning
Routine formulation technique in food science for creating novel sweetener compositions with improved sensory characteristics
Source Patent Element
Selective breeding of Stevia rebaudiana cultivars
PTD Variation
Generating cultivars with specific RebM content targets using combined molecular and traditional breeding techniques
Obviousness Reasoning
Standard plant breeding approach using known genetic selection methods to achieve targeted trait improvements
Source Patent Element
Basic steviol glycoside extraction methodology
PTD Variation
Implementing sensor-based quality control module for detecting and adjusting RebM content during processing
Obviousness Reasoning
Applying well-known process monitoring techniques to biotechnological extraction processes, representing a predictable technological improvement
35 U.S.C. § 103 Summary: Based on the teachings of US Patent 11856972 and the disclosed variations, a person of ordinary skill in the art would find the claimed innovations obvious, as they represent predictable extensions of existing stevia extraction and breeding methodologies. The published technical disclosure demonstrates that the claimed variations would have been obvious to a skilled practitioner through routine application of known biotechnological techniques in cultivar development, extraction optimization, and sweetener formulation.

Original Patent Information

Patent NumberUS 11,856,972
TitleStevia extracts
Assignee(s)THE COCA-COLA COMPANY, PURECIRCLE SDN BHD