Please wait, while we are loading the content...
| Content Provider | Royal Society of Chemistry (RSC) |
|---|---|
| Author | Fernandes, Ana Brás, Natércia F. Freitas, Victor de Mateus, Nuno |
| Copyright Year | 2015 |
| Abstract | Research involving the development of anthocyanin-containing food colorants has led to the discovery that acylated anthocyanins exhibit remarkable stability, with this improved stabilization being attributed to intra and inter-molecular association. In this work the self-association behavior (intra- and inter-molecular association) of malvidin-3-O-(6-coumaroylglucoside) (mv3cumglc) and malvidin-3-O-glucoside (mv3glc) in the flavylium form (pH 1.0) was studied using a synergistic combination of NMR and molecular dynamics simulation. NOESY experiments have suggested the occurrence of intra-molecular association on malvidin-3-O-coumaroylglucoside with the coumaric acid residue stacking in the anthocyanidin nucleus. The NMR spectral variations (chemical shifts, δ, and diffusion coefficients, D) resulting from the increase of the anthocyanin concentration were analyzed using an isodesmic model. In D2O–DMSO mixtures and in the concentration range tested, mv3cumglc was found to self-associate with a higher affinity constant (1402 M−1 (δ) and 2203 M−1 (D)) compared to mv3glc (819 M−1 (δ) and 1002 M−1 (D)) revealing that in acylated anthocyanins the combined aggregation phenomenon could be responsible for this higher affinity towards self-association. In D2O–DMSO the critical aggregation concentration (cac) values determined for both anthocyanins were very similar, though this value was lower for mv3cumglc. |
| Starting Page | 2602 |
| Ending Page | 2611 |
| Page Count | 10 |
| File Format | HTM / HTML PDF |
| ISSN | 11440546 |
| Volume Number | 39 |
| Issue Number | 4 |
| Journal | New Journal of Chemistry |
| DOI | 10.1039/c4nj02339k |
| Language | English |
| Publisher | Royal Society of Chemistry |
| Access Restriction | Open |
| Subject Keyword | Anthocyanin Pyrylium salt DMSO Isodesmic reaction PH Molecular dynamics Anthocyanidin Nuclear magnetic resonance Malvidin Diffusion |
| Content Type | Text |
| Resource Type | Article |
| Subject | Chemistry Materials Chemistry Catalysis |
National Digital Library of India (NDLI) is a virtual repository of learning resources which is not just a repository with search/browse facilities but provides a host of services for the learner community. It is sponsored and mentored by Ministry of Education, Government of India, through its National Mission on Education through Information and Communication Technology (NMEICT). Filtered and federated searching is employed to facilitate focused searching so that learners can find the right resource with least effort and in minimum time. NDLI provides user group-specific services such as Examination Preparatory for School and College students and job aspirants. Services for Researchers and general learners are also provided. NDLI is designed to hold content of any language and provides interface support for 10 most widely used Indian languages. It is built to provide support for all academic levels including researchers and life-long learners, all disciplines, all popular forms of access devices and differently-abled learners. It is designed to enable people to learn and prepare from best practices from all over the world and to facilitate researchers to perform inter-linked exploration from multiple sources. It is developed, operated and maintained from Indian Institute of Technology Kharagpur.
Learn more about this project from here.
NDLI is a conglomeration of freely available or institutionally contributed or donated or publisher managed contents. Almost all these contents are hosted and accessed from respective sources. The responsibility for authenticity, relevance, completeness, accuracy, reliability and suitability of these contents rests with the respective organization and NDLI has no responsibility or liability for these. Every effort is made to keep the NDLI portal up and running smoothly unless there are some unavoidable technical issues.
Ministry of Education, through its National Mission on Education through Information and Communication Technology (NMEICT), has sponsored and funded the National Digital Library of India (NDLI) project.
| Sl. | Authority | Responsibilities | Communication Details |
|---|---|---|---|
| 1 | Ministry of Education (GoI), Department of Higher Education |
Sanctioning Authority | https://www.education.gov.in/ict-initiatives |
| 2 | Indian Institute of Technology Kharagpur | Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project | https://www.iitkgp.ac.in |
| 3 | National Digital Library of India Office, Indian Institute of Technology Kharagpur | The administrative and infrastructural headquarters of the project | Dr. B. Sutradhar bsutra@ndl.gov.in |
| 4 | Project PI / Joint PI | Principal Investigator and Joint Principal Investigators of the project |
Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon |
| 5 | Website/Portal (Helpdesk) | Queries regarding NDLI and its services | support@ndl.gov.in |
| 6 | Contents and Copyright Issues | Queries related to content curation and copyright issues | content@ndl.gov.in |
| 7 | National Digital Library of India Club (NDLI Club) | Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach | clubsupport@ndl.gov.in |
| 8 | Digital Preservation Centre (DPC) | Assistance with digitizing and archiving copyright-free printed books | dpc@ndl.gov.in |
| 9 | IDR Setup or Support | Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops | idr@ndl.gov.in |
|
Loading...
|