COMPERATIVE STUDY ON THE PROXIMATE COMPOSITION OF REISHI MUSHROOM (Ganoderma lucidum) GROWN ON DIFFERENT SAWDUST SUBSTRATES

Agriculture

The experiment was carried out to find out the effect of different sawdust substrates viz. sawdust of gorjan (Rhizophora apiculata) (T1), sawdust of segun (Tectona grandis) (T2), sawdust of rain tree (Samanea saman) (T3) and sawdust mixture of gorjan, segun and rain tree (T4) on the proximate composition of Ganoderma lucidum. The moisture and protein content ranged from 68.79 to 72.38 % and 25.50 to 27.00 mg/100g respectively. The highest moisture (72.38 %) and protein (27.00 mg/100g) was observed in T3 which were lowest in T2 (68.79 %) and in T1 (25.50 mg/100g) respectively. T1 contained the highest percentage of carbohydrate (15.25 mg/100g) and lipid (2.65 mg/100g) while lowest carbohydrate (10.03 mg/100g) and lowest lipid (2.10 mg/100g) was recorded in T3. The highest amount of crude fiber (56.39 mg/100g) was recorded in T3 and lowest (52.57 mg/100g) was recorded in T1 while highest value of ash (4.48 mg/100g) was found in T4 while it was lowest (3.03 mg/100g) in T2. The highest amount of nitrogen (4.32 %), phosphorus (0.95 %) and potassium (1.49 %) were measured in T1 whereas the lowest nitrogen (4.08 %), phosphorus (0.79 %) were measured in T4 and potassium (1.19 %) was in T3. The highest amount of calcium (27.50 mg/100g), magnesium (89.00 mg/100g), cupper (1.20 mg/100g), iron (53.50 mg/100g), zinc (14.70 mg/100g) and sodium (20.00 mg/100g) was measured in T1 and the lowest amount of calcium (26.83 mg/100g), magnesium (86.27 mg/100g), cupper (0.90 mg/100g), iron (50.50 mg/100g), zinc (11.90 mg/100g) and sodium (17.17 mg/100g) was measured in T4.

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