Abstract According to the recent studies of the detrimental effects of organic adsorbents, these materials are widely used in various applications to prevent ultraviolet radiation damage. In this research, UV absorbent film was prepared by grape syrup (GS) in the matrix of polylactic acid (PLA). For this purpose, the casting method of nanoemulsion was used. UV–Vis results showed that these films can absorb UV rays in the range of 250–400 nm. According to FT-IR results, this behavior was related to the presence of compounds containing functional groups including C C, C O, and O–H.

中文翻译：

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使用聚乳酸和葡萄糖浆制备食品包装用紫外线吸收膜

摘要 根据最近对有机吸附剂有害影响的研究，这些材料被广泛用于各种应用，以防止紫外线辐射损伤。本研究以聚乳酸（PLA）为基质，用葡萄糖浆（GS）制备紫外线吸收膜。为此，使用了纳米乳液的浇铸方法。UV-Vis 结果表明，这些薄膜可以吸收 250-400 nm 范围内的紫外线。根据 FT-IR 结果，这种行为与含有 CC、CO 和 O-H 等官能团的化合物的存在有关。