Quality and Antibacterial Activity of Paper Soap Containing Essential Oil from Wan Sao Long

Main Article Content

Soontaree Thongsom
Kusumarn Noipha
Amonrat Thanonkaew
Vilailak Klompong


This study aimed to develop paper soap infused with essential oil extracted from Wan Sao Long (Amomum biflorum Jack) leaf. The essential oil was extracted using distillation, and its chemical composition was analyzed using Gas Chromatography-Mass Spectrometry (GC-MS). Subsequently, the paper soap was developed, and its physical properties, including general appearance, stability, pH value, foam quantity, foam stability, and sweating, were examined. Additionally, its antibacterial activity against Staphylococcus aureus and Escherichia coli was tested using the agar diffusion method. The results revealed that 4-Hydroxy-2 methylacetophenone was the major chemical component in the essential oil. The developed paper soap exhibited stability with a pH value of 9.69±0.16, a significant foaming volume, and foam stability. The paper soap had a specific fragrance of Wan Sao Long and did not exhibit sweating. The soap demonstrated inhibitory effects against S. aureus and E. coli with average inhibition zone diameters of 12.00±0.50 mm and 8.83±0.29 mm, respectively. However, the antibacterial activity of Wan Sao Long paper soap was less effective than that of antibiotics such as tetracycline and ampicillin. Therefore, paper soap containing Wan Sao Long essential oil possesses antibacterial activity and meets the quality standards.

Article Details

Biological Sciences


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