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首页> 外文期刊>Journal of Applied Polymer Science >Carotenoids extracts as natural colorants in poly(lactic acid) films
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Carotenoids extracts as natural colorants in poly(lactic acid) films

机译：类胡萝卜素在聚（乳酸）薄膜中作为自然着色剂提取物

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摘要

The use of vivid packaging colors is a strategy to attract consumers' attention and interest. In this context, the awareness of harmful effects caused by the use of synthetic colorants has led to an increasing interest in naturally derived alternatives. The use of carotenoids as colorants for polymeric materials represents an environmentally friendly way of obtaining colored packaging. The incorporation of carotenoids extracts rich in bixin, lycopene, and -carotene into poly(lactic acid) films was evaluated, where the presence of carotenoids (100 g/g) reduced oxygen permeability and presented a lubricant effect, increasing films elasticity up to 50%. No effect on films crystallinity was observed. Carotenoids reduced films transparency and bixin was the most stable carotenoid at dark and light conditions. The color stability of films, evaluated through kinetic parameters of color degradation, presented Chroma half-life times (40 degrees C/light) of 111, 51, and 5 days for bixin, lycopene, and -carotene, respectively. (c) 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46585.
机译：使用生动的包装颜色是吸引消费者关注和兴趣的策略。在这种情况下，通过合成着色剂的使用引起的有害影响的认识导致了对天然衍生的替代方案的兴趣。使用类胡萝卜素作为聚合物材料的着色剂代表了获得着色包装的环保方式。评价富含苄丙酮，番茄红素和-Carotene的类胡萝卜素提取物，其中类胡萝卜素（100g / g）的存在降低了透氧性并提出了润滑剂效果，增加薄膜弹性高达50 ％。观察到对膜结晶度的影响。类胡萝卜素减少薄膜透明度和苄酸是黑暗和光线条件下最稳定的类胡萝卜素。通过显微劣化的动力学参数评价薄膜的颜色稳定性，呈现出基因，番茄红素和-Carotene的111,51和5天的色度半衰期（40摄氏度）。 （c）2018 Wiley期刊，Inc.J.Phill。聚合物。 SCI。 2018,135,46585。

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