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Position: Home > Articles > Orthogonal Array Design Tests for Optimizing Ultrasound-assisted Extraction of Black Rice Pigment FOOD SCIENCE 2010,31 (4) 39-41

正交试验法优化黑米黑色素的超声辅助提取工艺

作  者:
张吉祥;赵文静;白晓杰;欧米良
单  位:
廊坊师范学院化学与材料科学学院;南开大学分子生物学研究所
关键词:
黑米;黑色素;正交试验法;超声提取
摘  要:
以黑米为原料,优化黑色素的最佳超声辅助提取工艺。采用正交试验法,研究超声波功率、浸提时间、浸提剂体积分数及料液比(黑米︰乙醇溶液,m/V)对黑米色素提取率的影响。结果表明:在所考察的因素中,黑米黑色素的最佳提取工艺为A3B1C3D3。浸提黑色素宜选体积分数80%的乙醇溶液作为提取剂,超声波作用时间50min,料液比1:32,超声功率250W,该优化方法的提取率为4.5%,比传统的索式提取法的提取率提高了近3倍。
译  名:
Orthogonal Array Design Tests for Optimizing Ultrasound-assisted Extraction of Black Rice Pigment
作  者:
ZHANG Ji-xiang1,ZHAO Wen-jing1,BAI Xia-jie1,OU Lai-liang2,(1.Faculty of Chemistry and Material Science,Langfang Teachers College,Langfang 065000,China;2.Key Laboratory of Bioactive Materials,Ministry of Education,Institute of Molecular Biology,Nankai University,Tianjin 300071,China)
关键词:
black rice;pigment;orthogonal array design;ultrasound-assisted extraction,
摘  要:
Ethanol was used for extracting black rice pigment under ultrasound assistance.To maximize the extraction of black rice pigment,orthogonal array design was employed for investigating the effects of ethanol concentration,solid-to-liquid ratio,ultrasound power,extraction time on black rice pigment yield (represented by the absorbance at 543 nm wavelength of extract solution).Results showed that the use of 80% ethanol for extracting black rice grains at 1:32 solid-to-liquid ratio (m/V) with the assistance of 50 min ultrasound treatment at 250 W gave an optimal pigment extraction and the resulting pigment yield reached up to 4.5%,with a near 3-fold increase in comparison with the conventional Soxhlet extraction.

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