MINERAL ELEMENTS OF WHITE, GREY, YELLOW AND PINK OYSTER MUSHROOMS (HIGHER BASIDIOMYCETES)

Öz

Oyster mushroom has ecological importance in maintaining balance in the environment by recyclingchemical elements between the soil, organisms and the atmosphere by industrial applications to producehighly protein foods when treat and clean up pollutants in same time. Minerals value (C, N, Co, Pb, Fe,Ni, Cu, Zn, Cd and Mn) of fruiting bodies of four oyster mushrooms species; Pleurotus ostreatus (grey),P. ostreatus (white), P. cornucopiae var. citrinopileatus (bright yellow) and P. salmoneostramineus(pink), were investigated on three mixtures; F1 (wheat straw alone 100%), F2 (wheat straw 70%, whitesawdust 20% and Iraqi date palm fiber "fibrillum" 10% mixture) and F3 (wheat straw 50%, white sawdust30% and fibrillum 20% mixture). The kinds of substrates showed significant (P<0.05) differences ofmineral composition of mushroom that due to metal content of each substrate, whereas the mixturewhich composed from one substrate was poorer in mineral value compared with others which composedfrom more one. Generally, Fe, Ni and Cd have been increased in substrates, also increased in fruitingbodies of oyster mushroom. These mineral levels were below the safety limits defined by FAO/WHOfor weekly Required Dietary Intake (RDI)

Anahtar Kelimeler

• Pleurotus spp.
• nutritional value
• wheat straw
• white sawdust
• date palm fiber

BEYAZ, GRİ, SARI VE PEMBE İSTİRİDYE MANTARLARININ(YÜKSEK MANTARLAR) MİNERAL MADDE İÇERİĞİ

Öz

İstiridye mantarları ekonomik öneme sahip olup toprak, organizmalar ve hava arasında kimyasalelementlerin döngüsünü sağlayarak çevresel dengenin korunmasını sağlarlar. Endüstriyel uygulamalarlayüksek proteinli gıdalar elde edilirken aynı zamanda topraktan kirletici kimyasalları temizlerler. Buaraştırmada üç farklı (F1 %100 buğday samanı, F2 %70 buğday samanı + %30 talaş + %20 fibrillum adıverilen Irak hurma ağacı fiberi karışımı) substratta geliştirilmiş dört istiridye mantarının Pleurotus ostreatus(gri), P. ostreatus (beyaz), P. cornucopiae var. citrinopileatus (parlak sarı) ve P. salmoneostramineus(pembe) mineral madde içeriği (C, N, Co, Pb, Fe, Ni, Cu, Zn, Cd ve Mn) belirlenmiştir. Substratlarınmineral içeriğine bağlı olarak mantarların da mineral içeriği önemli derecede (P<0.05) farklı olmuştur.Genel olarak substratların Fe, Ni ve Cd içeriği yüksek bulunurken, bu durum mantarlara da yansımıştır.Mineral içerikleri FAO/WHO tarafından açıklanan haftalık gerek duyulan alım için (weekly RequiredDietary Intake; RDI) güvenlik limitlerinin altındadır

Anahtar Kelimeler

• Pleurotus spp.
• besin değeri
• buğday samanı
• beyaz talaş
• palmiye ağacı fiberi

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