Department of Perfume and Aroma Technology, Shanghai Institute of Technology, No. 100 Haiquan Road, Shanghai 201418, China.
Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China.
Molecules. 2022 Aug 6;27(15):5015. doi: 10.3390/molecules27155015.
Porous carbohydrate materials such as tobacco shreds readily absorb moisture and become damp during processing, storage, and consumption (smoking). Traditional humectants have the ability of moisture retention but moisture-proofing is poor. Hua polysaccharide (PCP 85-1-1) was separated by fractional precipitation and was purified by anion exchange and gel permeation chromatography. The average molecular weight (Mw) of PCP 85-1-1 was 2.88 × 10 Da. The monosaccharide composition implied that PCP 85-1-1 consisted of fucose, glucose, and fructose, and the molar ratio was 22.73:33.63:43.65. When 2% PCP 85-1-1 was added to tobacco shreds, the ability of moisture retention and moisture-proofing were significantly enhanced. The moisture retention index (MRI) and moisture-proofing index (MPI) increased from 1.95 and 1.67 to 2.11 and 2.14, respectively. Additionally, the effects of PCP 85-1-1 on the aroma and taste of tobacco shreds were evaluated by electronic tongue and gas chromatography-mass spectrometry (GC-MS). These results indicated that PCP 85-1-1 had the characteristics of preventing water absorption under high relative humidity and moisturizing under dry conditions. The problem that traditional humectants are poorly moisture-proof was solved. PCP 85-1-1 can be utilized as a natural humectant on porous carbohydrates, which provides a reference for its development and utilization.
多孔碳水化合物材料，如烟丝，在加工、储存和使用（吸烟）过程中很容易吸收水分而变得潮湿。传统的保湿剂具有保湿能力，但防潮性差。华多糖（PCP85-1-1）通过分步沉淀分离，并通过阴离子交换和凝胶渗透色谱纯化。PCP85-1-1 的平均分子量（Mw）为 2.88×10 Da。单糖组成表明 PCP85-1-1 由岩藻糖、葡萄糖和果糖组成，摩尔比为 22.73:33.63:43.65。当向烟丝中添加 2%的 PCP85-1-1 时，保湿和防潮能力显著增强。保水指数（MRI）和防潮指数（MPI）分别从 1.95 和 1.67 增加到 2.11 和 2.14。此外，通过电子舌和气相色谱-质谱联用（GC-MS）评估了 PCP85-1-1 对烟丝香气和口感的影响。结果表明，PCP85-1-1 具有在高相对湿度下防止水分吸收和在干燥条件下保湿的特点。解决了传统保湿剂防潮性差的问题。PCP85-1-1 可作为多孔碳水化合物的天然保湿剂，为其开发利用提供了参考。
