香蕉皮黄色素稳定性研究

[目的]为天然黄色素的开发和利用及香蕉皮废弃资源的利用提供一定的理论依据。[方法]采用浸提法提取香蕉皮中的黄色素,研究其溶解性、最大吸收波长及稳定性。[结果]香蕉皮黄色素最大吸收波长为440 nm,易溶于乙醚和丙酮,光照、温度、pH值、氧化剂、还原剂、金属离子对其都有一定的影响。[结论]光照对香蕉皮中黄色素的影响较大。黄色素在70℃以下及在中性溶液中都有较好的稳定性;在一定浓度氧化剂和还原剂的条件下,有耐氧化性和耐还原性;Fe3+、Ba2+对黄色素有一定的增色效应。

Study on Stability of Yellow Pigment from Banana Peel

[Objective]In this paper,the aim was to provide the theoretical basis for the development and utilization of artificial pigment and the usage of banana peel.[Method]Extraction was used to extract yellow pigment and to study its solubility,the maximum Absorption wavelength and its stability.[Result] The maximum Absorption wavelength of banana peel yellow pigment was 440 nm.The yellow pigment was soluble easily to ether and acetone.Light,temperature,pH value,oxidant agents,reducing agents and metal ions were influential for the pigment.[Conclusion] The stability of pigment was obviously influenced by light.The pigment was stable below 70 ℃ and in neutral solution.The pigment had relatively antioxidant property and anti-reduction on the certain concentration of oxidant and reducing agents.It was found that Fe3+ and Ba2+ had fortification effects on the tone of pigment.