【作者】 韩彬；

【导师】 惠寿年；

【作者基本信息】 新疆师范大学 ， 植物学， 2006， 硕士

【摘要】 本研究以新疆地产黑果枸杞Lycium ruthenicum Murr.果实为实验材料,尝试将其作为一种食用色素产品的提取原材料进行开发利用。采用植物学、植物化学、食品卫生学和卫生毒理学的研究方法,通过单因素实验和正交实验,以提取物中色素含量为考察指标,对影响色素提取效果的各因素进行研究。结果表明,各因素对黑果枸杞色素提取效果的影响程度依次为:酸水pH>温度>固液配比>浸提时间。确定黑果枸杞色素的最佳提取工艺条件为以pH1.5的盐酸水溶液作浸提剂,提取温度为30℃,提取时间0.5 h,固液比1︰45时制取的色素产品色泽鲜丽,外观呈紫红色,品质优良。用732阳离子交换树脂吸附分离黑果枸杞色素的条件与方法进行研究的结果表明,以1 mol/L HCl溶液作洗脱剂,色素回收率达68.86%。对黑果枸杞色素的安全性进行了评价。首先,对其毒理学方面按照国家标准进行了检测,结果发现,此种色素属于无毒级别;其次,对色素中的有害微量元素进行了检测,发现均符合国家标准,因此,可以表明此种色素属于安全性较高的物质,经中试后,可应用于生产实践。更多还原

【Abstract】 This paper, based on fruits of Lycium ruthenicum Murr. of Xinjiang, aims to exploit the utility of this plant as a possible extractive material for the pigment products.By integrating the theories and methods of botany, plant chemistry, food hygiene and toxicology, the extracting technology of pigment from Lycium ruthenicum Murr. is studied by single factor and orthogonal design experiments guided by the pigment contents in the extraction. Results show the successive order of factors affecting extraction is pH(HCl) > solid-liquid ratio >extraction temperature>extraction time. The best extraction condition is 1︰45, pH1.5 HCl, 30℃, 0.5 hours. The pigment produced by this method is purple power.The absorption and disorption of the pigment Lycium ruthenicum Murr. with 001×7 sia are studied.The results show that eluting with 1mol/L HCl from 001×7 ,the pigment can be got 68.86%.According to the nation standards, the safety assessment of this pigment is studied. Its some items of toxicity are examined.The result shows that this pigment is safe, and the harmful element is also examined. We found that all results are correspondent with the nation standards, so this pigment is a safe element and can be used in production and life.更多还原