摘要
以板栗壳为原料提取棕色素,研究了不同的溶剂浓度、料液比、提取时间、提取温度对提取效果的影响,以及粗提棕色素的稳定性,结果表明:棕色素最佳提取条件为:75℃,条件下,用1%的N a O H提取2h,料液比为1:10,在此条件下提取率可达16.8%。棕色素稳定性试验表明该色素在碱性条件下有较好的稳定性,在100℃范围内稳定性好,对氧化剂和还原剂有较好的耐受性。
Brown pigment is extracted from Chestnut shell as raw material. The paper studies the effects on different solvent concentration, solid-liquid ratio, extraction time, extraction temperature and stability of the coarse brown pigment. The results showed that brown element： the best condition ;under the condition 75 ℃, 2 h were extracted with 1% NaOH, and solid-liquid ratio of 1：10, under the condition the extraction rate can reach 16.8%.Brown pigment stability test showed that the pigment in alkaline conditions has good stability, good stability, within the range of 100 ℃ of oxidant and reducing agent has good tolerance.
出处
《武汉职业技术学院学报》
2014年第5期93-95,共3页
Journal of Wuhan Polytechnic
关键词
天然色素
板栗壳棕色素
色素提取
化学稳定性
natural pigment
chestnut shell brown pigment
pigment extraction
chemical stability
