Science and Engineering Fair with their project on “Organic dish soap from soapberries and litsea glusinosa: A Green Solution for Modern Life”


In response to the growing societal demand for sustainable and eco-friendly products, the project, conducted by Ha Ngoc Diem Quyen and Phan Ngoc Y An, focuses on developing an organic cleaning agent derived from soapberries (Sapindus mukorossi) and Litsea glutinosa.

Recognizing the underutilization of natural resources and the environmental risks posed by industrial chemical cleaners, the project aims to create an effective, safe, and biodegradable alternative, particularly beneficial for families with children and individuals with chemical sensitivities.

The research investigates the cleaning efficiency of the product, especially in removing grease stains, its shelf life, and the potential for reusing raw materials. The methodology involved extracting saponin from soapberries, combining it with Litsea glutinosa mucilage, and enhancing the mixture with essential oils. The foaming ability and grease removal effectiveness were tested on contaminated surfaces, while storage trials evaluated stability over time.

Results showed that the organic soap had strong cleaning power, effective foaming, and maintained performance through three reuse cycles, although the shelf life was limited to two days before mold formation. Overall, the study confirmed the feasibility of creating a practical, eco-friendly cleaner that aligns with sustainable living goals. Future research will focus on identifying natural methods to extend product shelf life and exploring consumer acceptance to enhance real-world applicability.