Mosquito repellent bathing milk of two Central Highlands students

At the national science and technology competition for high school students in 2015-2016, the two children Dieu Linh and Voong Thi Hong Hanh were in grade 11 of Dak R'Lap ethnic boarding school, Dak Nong province. Awarded encouragement with lemon balm bath product can treat skin diseases.

The teacher is satisfied

Linh and Hanh took me to see the large garden about 40m ² behind the cafeteria, planting lemongrass trees , the plants selected for the study of producing shower gels, dishwashing liquid, floor cleaner, external treatment da . "The lemongrass present in the Central Highlands is very rare. I know that this kind of tree is only available in Dak Nong. We want to expand the area, to have enough raw materials to distill the oil, to make a lot. 100% natural products, cheap prices " - Linh shared.

Remember when I first entered the school, the whole class was frustrated because the school was full of mosquitoes."Mosquitoes attacked us every night, and when we ate and at school, we came up with the idea of ​​making a drug that repels mosquitoes. No experience is difficult to do, most in the area. This sucker area, everything is lacking, so it is even more difficult "- Hanh said. Luckily, this idea of ​​the students was favored by the Vice Principal Vo Nhu Son, who guided me sincerely. With a seniority in education for over 30 years, specializing in Chemistry, he always supports hard-working students, has bold ideas, so all 3 teachers and students work on research. .

"It took 4 months of persistent experiment, 3 teachers and students found the formula to manufacture the product. In Kien Duc town, citronella only grows in Dak Blao carbon. Lemon lemongrass is different from normal lemongrass, not edible. The scent of lemongrass has the function of chasing mosquitoes, preventing skin diseases such as fungi, scabies . I'm just a guide, and they actively do it. Linh and Hanh are two good students who are very quick, "said Mr. Son happily.

Dieu Linh and Hong Hanh next to mosquito repellent bath products made by them.

Quality tested

Laboratories of teachers and students in high schools Dak R'Luong ethnic boarding school is only invested quite simply with test tubes, distillation equipment used by boilers. In 2015, Mr. Le Van Thi, Chairman of Dak R'Long District People's Committee donated VND 10 million to "Hanh and Linh research team" to help 2 children buy chemical materials for research. The laboratory is also a hallway of a multi-function sports hall less than 10m ² .

Immediately after the "spirit child" was born, Mr. Son brought the test sample to the Center for Analysis and Quality Certification (Lam Dong Department of Science and Technology). Once completed, the product is packed into used filter bottles and "thanks to" Kien Duc water plant. "Lemongrass shower gel is very eye-catching green color, pleasant scent . suitable for all subjects. We have not mass produced, because we have not registered a business license. Therefore, the current product Only for school and family members, " Linh said.

Thi Ven - a girl of the same class as Linh said, lemon balm bath products have limited the situation of students being "tortured" by mosquitoes every night. "This product does not cause allergy to the skin, a long, pleasant fragrance. We are using it for free, seeing a lot of good uses!" - Ven shared.

Along with the joy of Ven, Mr. Dieu Chien (23 years old - Linh's brother) is currently in Krong No district, saying that since his brother has made lemongrass soap, his family has used the product. This product is for daily living. Mr. Chien said: "Seeing my wife bring me a plate to praise the scent, as well as to clean the skin and remove greasy. I also tried it, I saw where the mosquitoes were gone!".

According to Master Son, lemon citronella trees in the Central Highlands region are very rare, it is different from the common lemongrass, only used as medicine, cannot be eaten. In 1987, the 1st Youth Volunteer Team in Ho Chi Minh City came to Dak R'Lap area to explore and build a new economy. Their main task is to grow lemongrass for sale to a company that makes soap and shampoo. By the time they do business, they have to return to Saigon to do other jobs.

The land of lemongrass is gradually sunk into oblivion. Later, the government advocated planting pine trees, dozens of hectares of lemongrass were burned by the people, so the remaining amount was very small. 4 years ago, Mr. Dieu N'Se (49 years old - Linh's father) worked as a hired laborer, looking after the master's family. Listening to Linh's father telling stories, lemongrass trees in Dak B'Lao carbon still exist, Mr. Son hired Mr. Dieu N'Se into the forest to bring back this precious citronella.