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Enhancement of bioconversion efficiency and chemistry of the mushroom, Pleurotus sajor-caju (Berk and Br.) Sacc. produced on spent rice straw substrate, supplemented with oil seed cakes

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http://www.elsevier.com/locate/foodchem
FC-76-27-31-2002
 
Title Enhancement of bioconversion efficiency and chemistry of the
mushroom, Pleurotus sajor-caju (Berk and Br.) Sacc. produced
on spent rice straw substrate, supplemented with oil seed cakes
 
Creator Shashirekha, M. N.
Rajarathnam, S.
Bano, Z.
 
Subject 03 Mushroom
 
Description The effect of supplementing the spent rice straw substrate, selected at two different levels of bioconversion efficiency (BCE), 8 and
12%, of Pleurotus sajor-caju, with extra organic nitrogen (in the form of oil seed cakes) was studied on further production of
mushrooms, their chemistry and the increase in the in vitro dry matter digestibility (IVDMD) of rice straw. The spent rice straw was
supplemented with the oil seed cake powders in amounts equivalent to 0.15–0.60% of nitrogen present in the undegraded rice straw,
that is used for mushroom culturing. The cotton seed powder proved to be better in enhancing the mushroom yields (up to 12 times
those of the unsupplemented spent straw), than the other oil seed cakes such as mustard, niger, soyabean and sunflower.
Chemically, the cottonseed powder supplemented mushrooms showed increased protein, fat and decreased carbohydrate contents.
Also, there was a significant reduction in the spawnrun period, compared to the unsupplemented rice straw. A considerable increase
in the IVDMD of the supplemented spent straw was observed as compared to the IVDMD of the unsupplemented spent straw.
Due to cotton seed cake supplementation, there was about a 27% increase in the IVDMD value of the spent straw that resulted
in 8% BCE. The mushrooms produced on the spent rice straw substrate, with supplementation of cottonseed powder, did not
contain any residues of gossypol, and accordingly, they can be a valuable food or feed.
 
Date 2002
 
Type Article
NonPeerReviewed
 
Format application/pdf
 
Language en
 
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Identifier http://ir.cftri.com/18/1/Food_Chemistry_76_%282002%29_27-31_UL.pdf
Shashirekha, M. N. and Rajarathnam, S. and Bano, Z. (2002) Enhancement of bioconversion efficiency and chemistry of the mushroom, Pleurotus sajor-caju (Berk and Br.) Sacc. produced on spent rice straw substrate, supplemented with oil seed cakes. Food Chemistry, 76. pp. 27-31. ISSN 0308-8146