You will be astonished to know but yes, a glass of water contains more than 10 million bacteria, claims a new study. However, there isn’t any need to worry since all the bacteria in the glass of fresh water are good for health.
Experts always suggest you to drink at least three to four litres of water every day and this new study has given another good reason to follow the advice. According to study authors, these bacteria act as a catalyst in purifying the water thus, making it healthier.
Study authors first observed the purifying capabilities of bacteria when they examined the pipes in the purification plants and found that bacteria helped in the purification process in some way. It is the first time that any such process has been uncovered and earlier scientists were unaware of existence of any such phenomenon.
While explaining lead study author Catherine Paul from the University of Lund in Sweden said that more than ten million good bacteria were discovered in a glass of water. She further added that these bacteria are present in pipes of water treatment plants and from there they get into the clean water tap installed in our house. We humans use tap water for drinking and this way the bacteria get into the glass of water.
Researchers got the first clue when they observed a thin and sticky coating known as biofilm stuck inside the water pipes. Scientists also found the layer of biofilm over surface of raw water.
Later, researchers concluded that bacteria contribute to the most part of the water purification and majority of water purification is done inside the pipe and not in the purification plant.
“A previously completely unknown ecosystem has revealed itself to us. Formerly, you could hardly see any bacteria at all and now, thanks to techniques such as massive DNA sequencing and flow cytometry, we suddenly see eighty thousand bacteria per milliliter in drinking water,” said Paul.
Paul further added that good bacteria also help in digesting food in the intestine. The study has given a new insight into purification the properties of bacteria and chances are there that bacteria are playing a much larger role than we know. Study on much larger scale is required to explore all the hidden advantages of bacteria.
The findings appeared in the Journal Microbes and Environments.