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<p>This study investigates the nutritional and secondary metabolite content of three <i>Pleurotus</i> species, namely, <i>P. florida</i>, <i>P. eous</i> APK1, and <i>P. ulmarius</i> CO<sub>2</sub>, grown using nine different agro-industrial substrates (Paddy straw, corn husk, toddy palm, maize straw, rice bran, sugarcane bagasse, corn cob, groundnut shell and sawdust). Proximate fractions (ash, fat, protein, carbohydrate) and secondary metabolites (Total Phenolic Content (TPC), Total Flavonoid Content (TFC), Total Alkaloid Content (TAC), Total Tannin Content (TTC)) were estimated. Maximum ash accumulation was reported with maize straw for <i>P. florida</i> (7.5%) and for <i>P. ulmarius</i> CO<sub>2</sub> (9.0%), whereas maximum ash accumulation in <i>P. eous</i> was observed on groundnut shell (8.0%). Maximum lipid content occurred with rice bran for <i>P. florida</i> (3.66%), whereas sugarcane bagasse and groundnut shell supported lipids for <i>P. eous</i> and for <i>P. ulmarius</i>, respectively. Maximum carbohydrate content occurred with sugarcane bagasse for <i>P. eous</i> (58.70 ± 2.31&#xa0;mg/g), and highest protein content occurred with toddy palm-grown <i>P. ulmarius</i> (51.17 ± 5.38&#xa0;mg/g). Maximum TPC occurred for <i>P. florida</i> on corn husk (63.16 ± 8.13&#xa0;mg/g), whereas for <i>P. eous</i> and for <i>P. ulmarius</i>, maximum TFC occurred with maize straw. Interestingly, maize straw and sugarcane bagasse supported TAC and TTC, too, for certain species. Generally, nutrient and metabolite profiles were affected by composition of substrates. Substrate composition particularly suited for nutritionally supplemented mushroom cultivation is maize straw for <i>P. florida</i>, sugarcane bagasse for <i>P. eous</i> APK1, and groundnut shell for <i>P. ulmarius</i> CO<sub>2</sub>.</p>

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Impact of agro-industrial substrates on the proximate composition and secondary metabolites in Pleurotus florida, Pleurotus eous APK1 and Pleurotus ulmarius CO2

  • 期刊论文

  • 发表日期：

    2026年7月28日

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  • H. Abinaya,
  • D. Leena Lavanya

摘要

This study investigates the nutritional and secondary metabolite content of three Pleurotus species, namely, P. florida, P. eous APK1, and P. ulmarius CO2, grown using nine different agro-industrial substrates (Paddy straw, corn husk, toddy palm, maize straw, rice bran, sugarcane bagasse, corn cob, groundnut shell and sawdust). Proximate fractions (ash, fat, protein, carbohydrate) and secondary metabolites (Total Phenolic Content (TPC), Total Flavonoid Content (TFC), Total Alkaloid Content (TAC), Total Tannin Content (TTC)) were estimated. Maximum ash accumulation was reported with maize straw for P. florida (7.5%) and for P. ulmarius CO2 (9.0%), whereas maximum ash accumulation in P. eous was observed on groundnut shell (8.0%). Maximum lipid content occurred with rice bran for P. florida (3.66%), whereas sugarcane bagasse and groundnut shell supported lipids for P. eous and for P. ulmarius, respectively. Maximum carbohydrate content occurred with sugarcane bagasse for P. eous (58.70 ± 2.31 mg/g), and highest protein content occurred with toddy palm-grown P. ulmarius (51.17 ± 5.38 mg/g). Maximum TPC occurred for P. florida on corn husk (63.16 ± 8.13 mg/g), whereas for P. eous and for P. ulmarius, maximum TFC occurred with maize straw. Interestingly, maize straw and sugarcane bagasse supported TAC and TTC, too, for certain species. Generally, nutrient and metabolite profiles were affected by composition of substrates. Substrate composition particularly suited for nutritionally supplemented mushroom cultivation is maize straw for P. florida, sugarcane bagasse for P. eous APK1, and groundnut shell for P. ulmarius CO2.