Abstract
The edible milky mushroom is the most widely cultivated mushroom in tropical and sub-tropical regions. Studies were conducted on the cultivation and nutritional analysis of this mushroom. The pure culture of Calocybe indica was carried out in the laboratory. The culture was maintained on potato dextrose agar slant and sub-cultured at a regular monthly interval to sustain their fruiting vigor. The above stock culture was used in studies. Wheat grain spawn of C. indica was prepared in glass bottles. The filled paddy grain spawn of C. indica was used at 6% level to the wet weight of the substrate and the beds were spawned. After harvest, the mushrooms were dried at 40°C under the hot air oven to make it powered for further analysis. The collected fresh mushrooms were dried in shade and coarse powder was analyzed for nutrients namely moisture, crude protein, lipid, ash, crude fiber, and minerals. It shows the dominant compounds of protein, fiber, and carbohydrate and the contents are 14.11%, 8.30% and 5.62% respectively. Lipid, ash, ether extract and pH contents are 4.06%, 7.04%, 3.15% and 5.4% respectively. The carbon and nitrogen contents are 33.60% and 3.56% respectively. In the estimation of saturated fatty acids and unsaturated fatty acids present in C. indica, totally, 17 fatty acids were recorded. In the estimation of essential and non-essential amino acids present in C. indica, totally, 15 amino acids were recorded. In the estimation of minerals composition present in C. indica, it was recorded that the species had a good resource of mineral composition. Totally, 6 macro minerals and 8 micro minerals were recorded. This investigation may provide that the paddy straw substrates can be recommended for the commercial cultivation of C. indica to obtain highly nutritious mushrooms.
Highlights
Mushrooms can be used as food to solve malnutrition problems
The milky mushroom is considered a better proxy for oyster mushroom. The aim of this investigation was to analyze the biochemical composition and nutritional values of this mushroom cultivated on a paddy straw bed, to increase awareness of the beneficial effects of edible mushrooms among the consumers
The mother culture was subcultured on potato dextrose agar and after its full growth, it was transferred to the working spawn bags of C. indica
Summary
Mushrooms can be used as food to solve malnutrition problems. Mushrooms have good nutritional value as a source of protein that can enrich human diets, especially in some developing countries where animal protein may not be available and are expensive (Gopinath et al 2012). In India, it is widely distributed in the genetic plains of West Bengal They are considered to be more popular because of their robust size, attractive color, sustainable yield, delicious taste along with its unique texture. C. indica is more popular due to its robust size, attractive color, sustainable yield, delicious taste, and unique texture It is rich in carbohydrates, protein, lipids, fats, fiber, ash, and essential amino acids (Mary & Sahana 2014). They have become an attractive functional food mainly because of their biochemical composition and antioxidant properties which have been reported to prevent oxidative damage by free radical and reactive oxygen species (ROS) and may prevent the occurrence of diseases like carcinogenesis, aging, physical injury, infection, and cardiovascular disease. The aim of this investigation was to analyze the biochemical composition and nutritional values of this mushroom cultivated on a paddy straw bed, to increase awareness of the beneficial effects of edible mushrooms among the consumers
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