采用超临界二氧化碳萃取技术对有机溶剂萃取的辣椒红粗提物进行提纯、精制，制备高色价、高质量的辣椒红色素产品。
The red chilli colour product with high color value and high quality was prepared through refining capsicum oleoresin by supercritical carbon dioxide extraction method.
结果表明：D3520、D140树脂的精制效果较好，适合制备高色价的栀子黄色素。
The results showed that D3520 and D140 macroporous resins were suitable to prepare gardenia yellow of high color value.
本发明还在公开上述柴油加氢精制加氢催化剂的基础上进一步公开了上述催化剂的制备方法。
The invention further discloses a preparation method of the catalyst on the basis of disclosing the hydrofining catalyst of diesel oil.
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