Current problems involving the use of flax product waste for obtaining products utilized for the production of cosmetics with sunscreen and antioxidant properties were examined. Ethanol lignin was obtained from flax shives as well as from raw materials subjected to alkaline pulping or biochemical modification. The bioprocessing included a stage of enzymatic degradation of the noncellulose polysaccharides to give aldoses and a stage of isothermal aging at 95°C. Chemical transformations in the polymer were studied by Fourier-transform infrared spectroscopy (FTIR) with resolution of the spectral curve into elementary vibrational bands of the main atomic groups. The spectra were analyzed using the C–C-stretching vibrational band of the aromatic ring at 1510 cm^–1 as the internal standard. The enhanced absorption of the hydroxyaryl groups in the spectra of hydrolyzed lignin corresponds to the increase in intensity of the C=C-bond stretching and deformation vibrational bands. The increase in the auxochromic effect of the double bonds adjacent to the aromatic ring is seen in the increase in the absorption in the near-ultraviolet and visible light ranges. The biochemical preparation of the raw material led to disappearance of the IR bands for the double bonds in the carbonyl and alkene groups accompanied by a 1.5–2-fold enhancement of the absorption of alkyl hydroxyl groups and a 3–4-fold enhancement of the absorption of the hydroxyl group in the hydroxyaryl units. These results are consistent with the analytical data obtained upon biomodified preparation by the differential UV spectroscopic method and indicate greater photostabilizing capacity of lignin combined with absolute transparency in the visible range.

目前的问题涉及使用亚麻产品废料来获得用于生产具有防晒和抗氧化性能的化妆品的产品。乙醇木质素是从亚麻碎以及经过碱性制浆或生化改性的原材料中获得的。生物加工包括将非纤维素多糖酶降解为醛糖的阶段和在 95°C 下等温老化的阶段。通过傅里叶变换红外光谱 (FTIR) 研究聚合物中的化学转化，将光谱曲线解析为主要原子团的基本振动带。使用芳环的 C–C 拉伸振动带在 1510 cm ^–1处分析光谱作为内部标准。水解木质素光谱中羟基芳基的吸收增强对应于 C=C 键拉伸和变形振动带强度的增加。在近紫外和可见光范围内的吸收增加中可以看出与芳环相邻的双键的增色效应增加。原料的生化制备导致羰基和烯烃基团中双键的红外波段消失，同时烷基羟基的吸收增加了 1.5-2 倍，而烷基羟基的吸收增加了 3-4 倍。羟基芳基单元中羟基的吸收。