title: Differential response of oyster shell powder on enzyme profile and nutritional value of oyster mushroom Pleurotus florida PF05.
abstract: Oyster mushroom Pleurotus florida was cultivated on different combinations of wheat straw (WS) as basal substrate and oyster shell powder (OSP) supplement. The OSP supplementation considerably responded to different cultivation phases. The mycelium grew fast and showed rapid growth rate (8.91 mmd(-1)) in WS + OSP (97 + 3) combination while WS + OSP (92 + 8) showed maximum laccase (3.133 U/g) and Mn peroxidase (MnP) activities (0.091 U/g). The climax level of laccase (5.433 U/g) and MnP (0.097 U/g) was recorded during fruit body initiation in WS + OSP (97 + 3) and WS + OSP (98 + 2) combinations, respectively. The WS + OSP (97 + 3) combination represented the best condition for mushroom cultivation and produced the highest biological efficiency (147%). In addition, protein and lipid contents in fruit bodies were slightly improved in response to OSP. The carbohydrate was significantly increased by raising concentration of OSP. The highest values of protein, carbohydrate, and lipid noted were 31.3 μg/g, 0.0639 (g/g), and 0.373 (g/g) correspondingly. Conclusively it was evident that lower concentrations of OSP acted positively and relatively to higher concentrations and improved nutritional content which may suitably be used to enhance both yield and nutritional values of mushroom.
authors: Department of Biotechnology, Mushroom Training and Research Centre, Faculty of Science, Veer Bahadur Singh Purvanchal University, Jaunpur, Uttar Pradesh 222003, India.
authors: Ram
authors: R
authors: Naraian
authors: Department of Biochemistry, Faculty of Science, Veer Bahadur Singh Purvanchal University, Jaunpur, Uttar Pradesh 222003, India.
authors: Om Prakash
authors: OP
authors: Narayan
authors: Department of Applied Science, Faculty of Environmental Science, Himalayan Institute of Technology and Management, BKT, NH-24, Lucknow, Uttar Pradesh 227005, India.
authors: Jatin
authors: J
authors: Srivastava
mesh_terms: D000363:Agaricales / Q000737:chemistry / Q000201:enzymology; D060105:Animal Shells / Q000737:chemistry*; D000818:Animals; D002241:Carbohydrates / Q000737:chemistry; D004305:Dose-Response Relationship, Drug; D005656:Fungal Proteins / Q000737:chemistry; D042845:Laccase / Q000378:metabolism*; D008055:Lipids / Q000737:chemistry; D009753:Nutritive Value; D010125:Ostreidae; D020076:Pleurotus / Q000737:chemistry* / Q000201:enzymology*; D014908:Triticum
chemical_list: D002241:Carbohydrates; D005656:Fungal Proteins; D008055:Lipids; D042845:Laccase