黑甜玉米色素的提取及其稳定性的研究  

Study on Pigment Extraction and Stability of Black Sweet Corn

作　　者：刘敬兰[1] 

机构地区：[1]河北师范大学实验中心,石家庄050016

出　　处：《北京教育学院学报（自然科学版）》2009年第4期1-5,共5页Journal of Beijing Institute of Education

摘　　要：对黑甜玉米色素的提取试验结果表明,该色素提取的较优条件为:浸提剂为0.1mol/LHCl溶液,配料比为1:10,提取温度为70℃,提取时间为12h。水溶性色素,在酸性条件下稳定,最大吸收波长为445nm。该色素pH<5时,热稳定、光稳定性较好。蔗糖、葡萄糖、抗坏血酸等对色素没有影响。除了Fe3+,其他金属离子对色素无影响。In this paper, the pigment extraction and stability of black sweet corn have been studied. The optimums extraction are that solvent is 0.1 mol/L HCl, solvent volume to sample weight ratio is 1：10, extraction temperature is 70℃, and extraction time is 12h. The pigment is water-solubility with high stabilization under acor condition and wavelength of maximum absorption is 445nm. The thermo stabilization and light stability of this pigment is better for pH〈5. Sucrose, glucose, and Vitamin C etc. have no effect on the pigment, so do the metal ions except Fe^3＋.

关 键 词：黑甜玉米 天然色素 稳定性 光谱特性 

分 类 号：Q94-33[生物学—植物学]