Evaluation of Bacterial Contamination in Thanaka Products Distributed in Republic of the Union of Myanmar

Abstract

Until now, many plants have been used in disease therapy and skin care purposes. For example, Thanaka stem bark have been used to skin care by Burmese for more than thousands years as a. Nowadays, Thanaka have been transformed into many type of products such as loosed powder, compressed powder and lotion. The popularity and increase of Thanaka products distributed in Republic of the Union of Myanmar and Thailand border, therefore the concerned about microbial safety of products for the consumer. In this study, evaluation of contaminated of bacteria in 7 samples of Thanaka products distributed in Myanmar were
assayed. The result of this study demonstrated the contaminated with total heterotrophic bacteria in all of samples (S1-S7) of Thanaka products. The value of total aerobic bacteria ranged from (3.30±0.40)×106 to (1.09±0.09)×108
CFU/g, which these value exceeded the standard
of microbial quality (<103
CFU/g) for cosmetic product in Thailand (Notification of the Ministry of
Public Health No.40 A.D. 2005). The isolated bacteria from Thanaka products were identified in
genus Bacillus, including Bacillus thuringiensis, Bacillus laterosporus, Bacillus pasteurii, Bacillus
coagulans, Bacillus mycoides and Bacillus circulans. The most contaminated bacteria found in
all samples were B. thuringiensis and B. circulans. Consequently, prevention of bacterial
contamination into Thanaka products is necessary to control in all steps of production process.