低聚半乳糖Galacto-Oligosaccharides

低聚半乳糖（Galacto‑Oligosaccharides，简称 GOS），是以乳糖为原料，经 β‑半乳糖苷酶酶促转化制得的低聚糖混合物，由 2～8 个糖单元构成。产品分为粉末与糖浆两种形态；粉体为白色至类白色粉末，糖浆为浅黄透明液体，带有淡甜味，可溶于水。

Galacto‑Oligosaccharides (GOS) is a mixture of oligosaccharides manufactured from lactose via enzymatic conversion with β‑galactosidase, consisting of 2 to 8 saccharide units. It is available in powder and syrup forms. The powder is white to off-white; the syrup is pale yellow and clear, with a mild sweet taste and good water solubility.