Recycling Sericulture Byproducts: Nutrient Profile and Biofertilizer Potential of Silkworm Frass
Reddi Gowrisankar, J Komal, Surekha Dasari, D. V. Naveen, B Tirupam Reddy, Vishaka G.V, H. Nadaf
Journal of Advances in Biology & Biotechnology · pp. 1860–1866 · Published 24 Oct 2025
10.9734/jabb/2025/v28i103198Abstract
Silkworm frass is used in a novel technology called Seri composting which is a transition towards environmentally friendly alternatives to conventional synthetic fertilizers. In a country like India, Silkworm frass - a byproduct of sericulture, is emerging as a promising organic amendment is not only vital for the environment, but it is also economically necessary. This study evaluates the composition of the nutrient profile of frass in the four silkworm species Mulberry, Tasar, Eri and Muga in comparison with farmyard manure (FYM). Results revealed that silkworm frass is rich in nitrogen (1.78–2.13%), phosphorus (0.30–0.68%), potassium (1.15–1.62%), calcium (0.13–0.24%), magnesium (0.32–0.57%), and sulphur (0.46–0.82%), surpassing FYM in macronutrient content. The favourable C:N ratio supports its application as a biofertilizer. This research integrates the potentiality of silkworm frass as a sustainable input for integrated soil fertility management while reducing environment impact there by achieving circular bioeconomy.
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