Food Chem Toxicol 2009 Nov 01;4711:2830-3. doi: 10.1016/j.fct.2009.08.019.

Influence of calcinated starfish powder on growth, yield, spawn run and primordial germination of king oyster mushroom (Pleurotus eryngii).

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This study was undertaken to assess the calcium absorption efficacy of Pleurotus eryngii (king oyster mushroom) in sawdust medium supplemented with starfish powder and to determine the effect of starfish powder as calcium supplement on growth, yield, spawn run and primordial germination of P. eryngii. Optimum calcination of starfish powder was achieved at the temperature ranging from 560.1 to 649.5 degrees C. A 1% supplementation of starfish powder in sawdust medium did not suppress the growth of P. eryngii. Also the supplementation of 1% calcinated starfish powder to sawdust medium potentially increased the calcium content up to a level of 256.0+/-16.3 in the fruiting body of P. eryngii without extension of spawn run period and the retardation of the days to primordial germination.

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