Waste Valorization Through Oyster Mushroom Cultivation

Abstract

The world population on the planet earth is increasing day by day and is estimated now at over 7 billion. According to some studies, there will be 9 billion people on the planet by 2050 and by 2100, there may be 20 billion of population. Due to urbanization and population growth, there will be a shortage of food and a decline in human health, along with a corresponding decrease in fertile land. One of the most commercially successful and environmentally friendly biotechnology processes is the conversion of lignocellulosic agricultural and forest leftovers into protein-rich mushrooms, which helps meet the world's food demand, particularly for protein and overall nutrition. Waste management is another pressing global issue, exacerbated by the rapid growth of urban populations and industrial activities. Traditional waste disposal methods, such as landfilling and incineration, pose significant environmental hazards, including greenhouse gas emissions, soil and water contamination and loss of valuable materials. Consequently, innovative and sustainable waste management strategies are essential. Waste valorization, the process of converting waste materials into valuable products, offers a promising solution. One such approach involves the cultivation of oyster mushrooms (Pleurotus spp.), which not only reduces waste but also produces nutritious food and other valuable by-products (Adebayo et al., 2014). Oyster mushrooms are known for their ability to grow on a wide range of organic substrates, including agricultural and industrial wastes such as agricultural crops straw, sawdust, coffee grounds, vegetable wastes (Aditya & Jarial, 2023). This adaptability allows for the efficient conversion of waste materials into a valuable protein source. Addressing waste management challenges, the cultivation of oyster mushrooms has several environmental benefits, including reducing landfill use, lowering greenhouse gas emissions and promoting the recycling of organic matter. Economically, this practice can provide additional income streams for farmers and entrepreneurs, while socially, it can contribute to food security and create employment opportunities. Thus, oyster mushroom cultivation represents a sustainable and multifaceted approach to waste valorization, offering significant advantages for environmental health, economic development and community well-being (Aditya et al., 2024a).