lynk2510
Posts : 265 Join date : 2011-03-15
| Subject: natural polyisoprene content Sun Jul 10, 2011 2:59 pm | |
| Due to their natural polyisoprene content (1.1–7.7% by dry weight of fruit bodies),[48] L. volemus fruit bodies can also be used to produce rubber.[49] The chemical structure of rubber from the mushroom consists of a high molecular mass homologue of polyprenol, arranged as a dimethylallyl group, two trans isoprene units, a long sequence of cis isoprenes (between 260–300 units), terminated by a hydroxyl or fatty acid ester.[50] Biosynthetically, the creation of the polyisoprene begins with the compound trans,trans-farnesyl pyrophosphate, and is thought to terminate by esterification of polyisoprenyl pyrophosphate.[48] The enzyme isopentenyl-diphosphate delta isomerase has been identified as required for the initiation of rubber synthesis in L. volemus and several other Lactarius species.[51] wedding cake toppersair conditioners repair | |
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