Upadhye, A. B. ; Wadia, M. S. ; Mhaskar, V. V. ; Sukh Dev, (1970) Chemistry of lac resin-IV: Pure lac resin-1: Isolation and quantitative determination of constituent acids Tetrahedron, 26 (17). pp. 4177-4187. ISSN 0040-4020
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Official URL: http://www.sciencedirect.com/science/article/pii/S...
Related URL: http://dx.doi.org/10.1016/S0040-4020(01)93059-5
Abstract
From the "hard resin" of Palas seedlac, an essentially pure lac resin fraction (termed, pure lac resin) has been isolated by the solvent precipitation method. Since, some of the constituent acids of lac resin could not be estimated (as Me esters) by GLC, owing to decomposition on GLC columns, a semi-quantitative method for their estimation, involving shor-term hydrolysis, followed by oxidation (CrO3), esterification and GLC estimation of products, has been developed. It is shown that "pure lac resin" molecule is derived from three molecules of aleuritic acid, five molecules of jalaric (shellolic) acid and one molecule of laccijalaric acid.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 53985 |
| Deposited On: | 10 Aug 2011 09:01 |
| Last Modified: | 10 Aug 2011 09:01 |
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