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D‑Talose (CAS 2595‑98‑4) is a rare aldohexose monosaccharide with formula C₆H₁₂O₆, the C‑2 epimer of D‑galactose. It appears as white crystalline powder, soluble in water, barely found in natural sources. This sugar is costly to manufacture at scale and lacks global food‑ingredient regulatory authorization. It is mainly supplied as high‑purity biochemical reagent for laboratory glycomics research, acting as enzyme substrate for studying carbohydrate‑metabolizing enzymes. Preliminary lab tests note mild bio‑inhibitory effects, yet no commercial food or pharmaceutical production applies it currently.
D‑Talose (CAS 2595‑98‑4) is an extremely rare aldohexose monosaccharide found only in trace amounts in a small number of plant tissues, with virtually no natural occurrence in mainstream edible raw materialsPMC. At present, it has no formal regulatory clearance for commercial food use worldwide. It has not obtained GRAS status in the United States, novel‑food authorization in the European Union, or food‑ingredient evaluation from JECFA, so it cannot be legally added into mass‑produced food, beverage, bakery or confectionery goods.
Large‑scale food‑grade manufacturing remains a major bottleneck. D‑Talose relies on complex chemical synthesis or low‑yield enzymatic epimerisation. High‑purity material is expensive and mostly supplied as biochemical reagent rather than bulk food ingredient. Its processing stability under typical food manufacturing conditions, such as heating, acid‑base adjustment and sterilisation, has not been systematically characterised. Industrial formulation data for baking, pasteurisation or shelf‑life simulation is nearly absent.
Existing food‑related research stays strictly within laboratory scope. In‑vitro assays observe mild inhibitory effects against certain carbohydrate‑metabolising enzymes, inspiring theoretical interest for low‑glycaemic functional‑sugar research. Nevertheless, no human clinical feeding trials, complete toxicology datasets, or oral‑digestion‑absorption profiles are publicly available. Any potential physiological benefit cannot be extrapolated to real‑world dietary effects.
Its primary food‑science value acts as a reference analytical standard. Glycoscientists employ D‑Talose to examine enzyme substrate selectivity, sugar‑protein interactions and rare‑sugar metabolic pathways. It helps researchers screen candidate low‑calorie sweeteners, yet it serves only as lab tool instead of formulable component.
In summary, D‑Talose has zero practical commercial food applications today. Strict regulatory barriers, prohibitive production cost, insufficient safety evidence and unclear processing performance block real‑world adoption. Before comprehensive toxicological assessment and official food‑ingredient approval are completed, D‑Talose will remain confined to academic laboratories and cannot be incorporated into commercial food formulations.
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