以鼠尾藻为原料,运用超声辅助提取法对鼠尾藻中岩藻黄素的提取工艺进行研究,通过单因素实验法和响应曲面法确定了工艺参数。通过高效液相色谱法(HPLC)和电喷雾质谱法(ESI/MS)对经过硅胶层析柱分离纯化后的岩藻黄素样品进行分析。实验结...以鼠尾藻为原料,运用超声辅助提取法对鼠尾藻中岩藻黄素的提取工艺进行研究,通过单因素实验法和响应曲面法确定了工艺参数。通过高效液相色谱法(HPLC)和电喷雾质谱法(ESI/MS)对经过硅胶层析柱分离纯化后的岩藻黄素样品进行分析。实验结果表明,超声提取的最佳工艺是:乙醇体积分数为80%(v/v),超声时间32 min,超声起始温度52℃,液料比10 m L/g,L-抗坏血酸的添加量0.8%,在此条件下提取2次,岩藻黄素粗品得率为(0.455±0.046)mg/g。经硅胶层析柱纯化后的岩藻黄素纯度约86.88%±1.34%,得率为(0.048±0.002)mg/g。采用该法制备高纯度的岩藻黄素工艺简单,产物得率高,为其今后的综合利用提供了实验基础和技术支持。展开更多
The objective of this study was to isolate fucoxanthin from Sargassum thunbergii and develop microcapsules with palm stearin as the solid lipid core for stability and efficient oral delivery of fucoxanthin. The microc...The objective of this study was to isolate fucoxanthin from Sargassum thunbergii and develop microcapsules with palm stearin as the solid lipid core for stability and efficient oral delivery of fucoxanthin. The microcapsules had smooth surfaces with the volume weighted mean diameter (d4.3) of 19.19 μm. Encapsulation efficiency and loading capacity of microcapsules with fucoxanthin were 98.3% and 0.04%, respectively. Moreover, the fucoxanthin in microcapsules presented higher stability than free fucoxanthin against light, humidity and temperature. Especially, the retention rates of fucoxanthin encapsulated in microcapsules reached 97.20% at 4℃, 92.60% at 25℃, 92.32% with the relative humidity of 33% and 92.60% in the dark. The cumulative amount of fucoxanthin released from microcapsules was 22.92% in simulated gastric fluid (SGF) and 56.55% in simulated intestinal fluid (SIF).展开更多
文摘以鼠尾藻为原料,运用超声辅助提取法对鼠尾藻中岩藻黄素的提取工艺进行研究,通过单因素实验法和响应曲面法确定了工艺参数。通过高效液相色谱法(HPLC)和电喷雾质谱法(ESI/MS)对经过硅胶层析柱分离纯化后的岩藻黄素样品进行分析。实验结果表明,超声提取的最佳工艺是:乙醇体积分数为80%(v/v),超声时间32 min,超声起始温度52℃,液料比10 m L/g,L-抗坏血酸的添加量0.8%,在此条件下提取2次,岩藻黄素粗品得率为(0.455±0.046)mg/g。经硅胶层析柱纯化后的岩藻黄素纯度约86.88%±1.34%,得率为(0.048±0.002)mg/g。采用该法制备高纯度的岩藻黄素工艺简单,产物得率高,为其今后的综合利用提供了实验基础和技术支持。
基金This work was supported by Public Science and Technology Research Funds Projects of Ocean (Grant No. 201505022), the National Natural Science Foundation of China NSFC-Shandong Joint Fund (U1406402-5), the National Natural Science Foundation of China (Grant No. 81671828), and the Taishan Scholar Program of China.
文摘The objective of this study was to isolate fucoxanthin from Sargassum thunbergii and develop microcapsules with palm stearin as the solid lipid core for stability and efficient oral delivery of fucoxanthin. The microcapsules had smooth surfaces with the volume weighted mean diameter (d4.3) of 19.19 μm. Encapsulation efficiency and loading capacity of microcapsules with fucoxanthin were 98.3% and 0.04%, respectively. Moreover, the fucoxanthin in microcapsules presented higher stability than free fucoxanthin against light, humidity and temperature. Especially, the retention rates of fucoxanthin encapsulated in microcapsules reached 97.20% at 4℃, 92.60% at 25℃, 92.32% with the relative humidity of 33% and 92.60% in the dark. The cumulative amount of fucoxanthin released from microcapsules was 22.92% in simulated gastric fluid (SGF) and 56.55% in simulated intestinal fluid (SIF).