TH26203U - A method for extracting substances from star gooseberry leaves for weed control. - Google Patents

Abstract

The extraction process from star gooseberry leaves for weed control involves the following steps: The leaves are chopped and dried, then finely ground and soaked in water at a ratio of 1:2 by weight to volume (W/). The extracted water is then vaporized using a centrifuge to obtain the star gooseberry leaf extract. A concentration of 50 g/L of this extract effectively inhibits the germination and seedling growth of four weed species (barnyard grass, weed rice, spiny amaranth, and spiny spinach), achieving the highest average inhibition rate (100%).

Claims (1)

------14/03/2568------(OCR) OCR 09WP 1. The method for extracting substances from star gooseberry leaves for weed control involves the following steps: a. Select complete star gooseberry leaves, removing any damaged parts. These leaves are then chopped and dried in an oven at 60°C for 3 days. The dried leaves are then weighed to 1,000 grams. b. The dried leaves from step a are finely ground using a grinder. They are then soaked in pure water at a ratio of 1:2 by weight to volume (W/V), meaning 1,000 grams of dried leaves to 2,000 milliliters of water. This mixture is left for 3 days. Afterward, the soaked leaf extract is filtered twice using cheesecloth to obtain the star gooseberry leaf extract. c. The solvent from the extract obtained in step b is evaporated using a rotary vacuum evaporator.