Mogroside-based natural sweetener blends with enhanced solubility and stability in low ph systems

Overview

This research proposes a natural sweetener solution based on mogrosides extracted from Luo-han-guo (Siraitia grosvenorii), a fruit native to Guangxi, China. Mogrosides are triterpenoid glycoside compounds approximately 300 times sweeter than sucrose, recognized as safe by the FDA and already used as sucrose alternatives in markets including the United States. The technology specifically targets the long-standing challenge of sweetener performance in low pH systems, where many natural sweeteners experience solubility and stability issues. Preliminary laboratory results indicate that mogrosides and their blends demonstrate excellent solubility and stability at pH 2, outperforming steviol glycosides under similar conditions. Additionally, blended formulations appear to deliver greater sweetness potency than single-component samples, suggesting formulation advantages for product developers.

Technical specifications

Key features:

• Mogroside V as the primary sweet component, supplemented by mogrosides I–V with controlled relative percentages
• Glycosidic linkage structure providing chemical stability, no off-flavors, and minimal color impact
• Validated solubility and stability performance in low pH (pH 2) aqueous systems
• Blend formulations demonstrating enhanced sweetness potency compared to single-component sweeteners
• Positioned as a direct substitute for steviol glycosides in acidic formulations, targeting replacement of 5–10% stevia or equivalent sweetness levels
• Optimization of extraction processes from ripe Luo-han-guo fruit to reduce production costs

Technology readiness level

The technology is currently at an early-to-mid stage of development. Initial laboratory assessments of commercial mogrosides and mogroside blends have confirmed favorable solubility and stability properties in low pH conditions. Planned future validation includes optimizing extraction methods and standardizing mogroside I–V molecular compositions for cost-effective production, conducting six-month physical-chemical property experiments in low pH systems, and evaluating shelf stability for at least 12 months without degradation or sedimentation. Further partnership and development support is needed to advance toward commercial-scale readiness.