Enhancing mushroom production using physical treatments prior to fruiting body formation
There is an increasing world demand for mushrooms as their culinary uses and nutritional benefits become more widely known. The grey oyster mushroom (Pleurotus sajor-caju) is an edible mushroom commercially cultivated in Malaysia. In this study, the effects of high sound intensity, bright light, l...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Penerbit Universiti Kebangsaan Malaysia
2015
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| Online Access: | http://journalarticle.ukm.my/8710/ http://journalarticle.ukm.my/8710/ http://journalarticle.ukm.my/8710/1/44_1_12.pdf |
| Summary: | There is an increasing world demand for mushrooms as their culinary uses and nutritional benefits become more widely
known. The grey oyster mushroom (Pleurotus sajor-caju) is an edible mushroom commercially cultivated in Malaysia. In
this study, the effects of high sound intensity, bright light, low temperature (5°C) and electrical shock on the growth, yield
and physico-chemical properties of the mushroom was investigated. The results showed that mushroom cultures treated with
bright light, high sound intensity and cold temperature produced spawn more rapidly, requiring a shorter time for the mycelium
to fill up the substrate bag as compared with the control. An electric shock was observed to be the most effective treatment
that promoted the earliest emergence of pinheads and formation of fruiting bodies. Besides, mushroom treated with electrical
shock treatment showed higher yield which was twice more compared to control. For the color of the mushroom, cold
treatment showed the lightest color with the highest yellow intensity (b* value) compared to other treatments, whilst mushroom
without any physical treatment had the highest red intensity (a* value). Different physical treatments applied did not show
any significant effect on texture, moisture, ash, protein and crude fiber contents. In conclusion, among all the physical treatments,
electrical shock was the best treatment as it took a shorter spawning time with the greatest yield of mushroom production. |
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