{"id":661,"date":"2021-06-04T10:10:41","date_gmt":"2021-06-04T02:10:41","guid":{"rendered":"http:\/\/tjhecheng.com\/uncategorized\/selection-of-adsorption-separation-process.html"},"modified":"2021-06-04T10:10:45","modified_gmt":"2021-06-04T02:10:45","slug":"selection-of-adsorption-separation-process","status":"publish","type":"post","link":"http:\/\/tjhecheng.com\/en\/application-guide\/selection-of-adsorption-separation-process.html","title":{"rendered":"Selection of adsorption separation process"},"content":{"rendered":"\n<p class=\"has-text-align-right\">Produced by Tianjin Nankai Hecheng, please indicate the source for reprinting<\/p>\n\n<p>The effect of adsorption separation mainly depends on the resin used. The method of using the resin also has a great influence on the separation effect. Therefore, these two aspects need to be considered when carrying out a specific separation.<\/p>\n\n<p>l Selection of adsorption resin<\/p>\n\n<p>From the terminology, adsorption and separation are two concepts, but the purpose of adsorption is mostly for separation.<\/p>\n\n<p>There are two types of adsorption resins: \u25b2 Broad-spectrum adsorption resins \u25b2 Selective adsorption resins<\/p>\n\n<ul><li>The characteristics of broad-spectrum resins are: large attached amount and easy elution, but the purity of the obtained product is low;<\/li><li>The characteristics of selective resins are: high selectivity for adsorption and adsorption of the target, high purity of the product, but sometimes low adsorption capacity.<\/li><\/ul>\n<p>If soy isoflavones are extracted, the adsorption and separation effects of different resins are shown in the figure below:<\/p>\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" width=\"296\" height=\"224\" src=\"http:\/\/tjhecheng.com\/wp-content\/uploads\/2021\/04\/11.png\" alt=\"\" class=\"wp-image-251\"\/><figcaption>In the picture, ADS-21 is a resin with good selectivity for soybean isoflavones, while ADS-8 is a typical broad-spectrum resin<\/figcaption><\/figure><\/div>\n\n<p><\/p>\n\n<p>The extraction of Ginkgo biloba flavonoid glycosides also had similar results, as shown in the following table:<\/p>\n\n<p><\/p>\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" width=\"492\" height=\"153\" src=\"http:\/\/tjhecheng.com\/wp-content\/uploads\/2021\/04\/12.png\" alt=\"\" class=\"wp-image-252\" srcset=\"http:\/\/tjhecheng.com\/wp-content\/uploads\/2021\/04\/12.png 492w, http:\/\/tjhecheng.com\/wp-content\/uploads\/2021\/04\/12-300x93.png 300w\" sizes=\"(max-width: 492px) 100vw, 492px\" \/><\/figure><\/div>\n\n<p><\/p>\n\n<p>The selection principle of the adsorption resin should consider the special effect between a certain group in the target molecule and the functional group of the resin, so as to realize the separation from other substances. Such as:<\/p>\n\n<p>\u2605Metal Al-loaded resin (ADS-11) can complex with flavonoid molecules. Based on this mechanism, ADS-11 can increase the purity of 12% sea buckthorn flavonoids to 55%;<\/p>\n\n<p>\u2605The pore size of ADS-4 is only 1.3nm, which can absorb small molecules of impurities, but the steviol glycosides with a molecular weight above 500 cannot enter, so it can purify stevioside and increase the purity of stevioside from 90% to 95~98%;<\/p>\n\n<p>\u2605The -OH group of ADS-31 can form hydrogen bonds with compounds containing ester and amine groups. This mechanism can be used to separate natural products such as alkaloids and esters.<\/p>\n\n<p>\u2605ADS-7, D280, D301R have strong polar amine groups, which can not only adsorb acidic substances, but also have a strong affinity for natural pigments with conjugated double bonds. They are good for decolorizing natural products. effect.<\/p>\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" width=\"399\" height=\"66\" src=\"http:\/\/tjhecheng.com\/wp-content\/uploads\/2021\/04\/13.png\" alt=\"\" class=\"wp-image-253\" srcset=\"http:\/\/tjhecheng.com\/wp-content\/uploads\/2021\/04\/13.png 399w, http:\/\/tjhecheng.com\/wp-content\/uploads\/2021\/04\/13-300x50.png 300w\" sizes=\"(max-width: 399px) 100vw, 399px\" \/><\/figure><\/div>\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Produced by Tianjin Nankai Hecheng, please indicate the source for reprinting The effect of adsorption separation mainly depends on the resin used. The method of using the resin also has a great influence on the separation effect. Therefore, these two aspects need to be considered when carrying out a specific separation. l Selection of adsorption &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"http:\/\/tjhecheng.com\/en\/application-guide\/selection-of-adsorption-separation-process.html\"> <span class=\"screen-reader-text\">Selection of adsorption separation process<\/span> More \u00bb<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[33],"tags":[],"_links":{"self":[{"href":"http:\/\/tjhecheng.com\/en\/wp-json\/wp\/v2\/posts\/661"}],"collection":[{"href":"http:\/\/tjhecheng.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/tjhecheng.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/tjhecheng.com\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/tjhecheng.com\/en\/wp-json\/wp\/v2\/comments?post=661"}],"version-history":[{"count":1,"href":"http:\/\/tjhecheng.com\/en\/wp-json\/wp\/v2\/posts\/661\/revisions"}],"predecessor-version":[{"id":662,"href":"http:\/\/tjhecheng.com\/en\/wp-json\/wp\/v2\/posts\/661\/revisions\/662"}],"wp:attachment":[{"href":"http:\/\/tjhecheng.com\/en\/wp-json\/wp\/v2\/media?parent=661"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/tjhecheng.com\/en\/wp-json\/wp\/v2\/categories?post=661"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/tjhecheng.com\/en\/wp-json\/wp\/v2\/tags?post=661"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}