摘要
用浸提法提取新鲜成熟血橙橙皮中的色素,通过对提取剂、提取时间、固液比及提取温度的试验,确定提取该色素的最佳工艺条件为:选用乙醇为提取剂,在固液比为1:70的情况下,浸提时间5个小时,浸提温度为60℃.所提取的血橙皮色素热稳定性较好,在强酸强碱性环境下,稳定性有所下降,在中性和弱酸碱性环境下,稳定性较好;大多数金属离子如Na+、Mg2+、Ca2+等对该色素影响较小,Zn2+和Cu2+对色素有明显的增色作用;氧化性物质会使血橙皮色素颜色变淡,影响其稳定性,还原性物质对该色素作用不明显.
Immersed extraction is used to extract the pigment from fresh ripe blood orange peel by.The experiments on extraction agents,extracting time,the liquid-solid ratio and extracting temperature show how to determine the optimal extraction process.That is,choosing ethanol as extraction reagent,with its ratio of liquid to solid being 1：70,with 5 hours of extraction,and the temperature of extraction： 60℃.The thermal stability of the blood orange pigment is good;in strong acid and alkaline solutions,the stability is reduced,while in neutral and weakly acid and alkaline solutions,the stability is good.Most metal ions,such as Na＋,Mg2＋,Ca2＋,cannot affect the stability strongly.While Zn2＋ and Cu2＋ can deepen the color of this pigment.Oxidizing substances can make the color of the pigment fade,and affect its stability,while the pigment is not reacted with reducing substances.
出处
《西南民族大学学报（自然科学版）》
CAS
2011年第6期924-930,共7页
Journal of Southwest Minzu University(Natural Science Edition)
关键词
血橙
橙皮色素
浸提法
blood orange
pigment
immersed extraction
extract
stability
