The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Chitooligomers (COS) with degree of polymerization (DP) ranging from 2 to 12 was prepared by acid hydrolysis of chitosan and five fractions were separated from the prepared COS by CM Sephadex C-25 column. The fractions were desalted by activated charcoal extraction. The components of each fraction were analyzed by TLC, HPLC and MALDI-TOFMS. Five fractions mainly contained trimer (95.7%), tetramer...
The preparation of chitooligosaccharides with single degree of polymerization and well-defined degree of acetylation is of significance to identify the components possessing strong biofunction. This study focuses on the preparation of two partially acetylated chitotrioses (N-acetylchitotriose and N,N′-diacetylchitotriose), involving a two-step process: (i) partially N-acetylation of chitotriose and...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.