Effect of Temperature Difference on the Effectiveness of Lactobacillus bacteria in the Decomposition of Organic Waste and the Possibility of Using the Product as Agricultural Fertilizers

Abstract

This experimental study was conducted to compare the effect of temperature on the effectiveness of Lactobacillus bacteria in decomposing organic waste and its potential use as a useful fertilizer for soil. Lactobacillus bacteria were isolated from the mouth of a donor and identified. Then, a number of organic wastes (cucumber peels and banana peels) were collected after washing, cleaning, drying and cutting. Lactobacillus bacteria were placed in a normal saline solution with a concentration of 0.90 ml and 15 ml of it was taken with a concentration of 5 McF and placed on organic waste weighing 100 grams and placed in containers, then covered and left. This waste was divided into two parts and prepared at a temperature of 37°C and another part at a temperature of 20°C to prove the effect of temperature differences on the effectiveness of Lactobacillus in decomposing waste. After the decomposition that lasted (1-1.5) months, this waste was taken, dried, ground, then mixed with soil and radish seeds were planted in the soil. After five days, the soil containing decomposed banana peels at 37°C showed the beginning of growth. On the seventh day, the normal soil showed growth. No growth was shown in the fields containing decomposed cucumber peels at 37-20°C and decomposed banana peels at 20°C during the first week. The plants withered without fertilizer after nine days of growth, while the plants in the fields containing decomposed banana peels at 37°C remained upright and healthy, highlighting their potential as a useful fertilizer.