Year: 2026 | Month: May | Volume: 13 | Issue: 5 | Pages: 379-385
DOI: https://doi.org/10.52403/ijrr.20260533
Improving Liquid Organic Fertilizer Made from Fish Waste by Adding Papaya Leaves
Bayu Satrio Purnomo1, Rita Khairina2, Findya Puspitasari3, Purnomo4
1Master of Fisheries Science, Lambung Mangkurat University, South Kalimantan, Indonesia
2,3,4Fishery Product Technology Study Program, Faculty of Fisheries and Marine Sciences, Lambung Mangkurat University, South Kalimantan, Indonesia
Corresponding Author: Bayu Satrio Purnomo
ABSTRACT
Papaya leaves contain the enzyme papain which can help microorganisms degrade collagen and elastin in fish waste, thus accelerating the hydrolysis of protein into amino acids and free nitrogen. The research aims to analyze the effect of adding papaya leaves with various concentrations and fermentation times on increasing the volume and quality of liquid organic fertilizer made from fish waste. This research was conducted at the Integrated Laboratory of Lambung Mangkurat University in Banjarbaru, Indonesia. This study used a factorial randomized block design with two factors, namely the concentration of papaya leaves (0 g, 30 g, 60 g, and 90 g) and the fermentation time (3, 7, and 14 days). The addition of papaya leaves in the fermentation process of liquid organic fertilizer (LOF) from fish waste had an effect on increasing the volume of LOF the highest was obtained on the 14th day with the addition of 30% papaya leaves, while the highest nitrogen and phosphorus content was achieved in fermentation for seven days with a concentration of 10–20%.
Keywords: Liquid Organic Fertilizer, Fish Waste, Papaya Leaves
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