natural-sweeteners
Natural sweeteners are plant-derived compounds that provide sweetness with little to no caloric content, sourced from leaves, fruits, and roots of various plant species through extraction or minimal processing. Understanding the biosynthetic pathways behind these compounds is a key area of plant science research, as it reveals how plants produce and accumulate specialized metabolites. This knowledge enables scientists to improve crop varieties, enhance yield of sweet compounds, and explore the evolutionary and ecological roles these molecules play in plants.
open_in_new WikipediaPubMed · 2026-05-07
Scientists have mapped out how synthetic biology can replace traditional plant farming to produce 12 natural sweeteners — including stevia-type compounds, flavonoids, and sweet proteins — using engineered microbes. This review highlights where the technology works, where it falls short, and what needs to happen for factory-scale production.
12 representative natural sweeteners were systematically reviewed, spanning five chemical classes: sweet proteins, terpenoid glycosides, flavonoids, polyols, and monosaccharides.
Traditional plant extraction faces two hard bottlenecks — slow crop growth cycles and geographic dependence — that microbial cell factories are designed to circumvent.
Both metabolic engineering and enzyme engineering are identified as essential complementary tools, and the review explicitly maps core technical bottlenecks still blocking industrial-scale production.