In this world
Where you care, a delicate flower will grow
Where you ignore, a lump of white hair will grow
For example, the water cup and kettle of the brother
Brother Dian, ZhiMei's boyfriend (public number: Tencent Medical Code)
Hands-on ability is a bit delayed
A bunch of fungi were cultured
Today, Zhimei will talk to you about this "maomao":
How did mao mao grow into a water cup?
What are their physical hazards?
What to do?
The Buddha-figure of Mao Mao is a "mold", a filamentous fungus that already lives with us in its natural environment.
Their seeds "mold spores" float freely in the air and "settle down" when they encounter a comfortable environment.
Mold grows explosively at temperatures of 20 to 30 degrees Celsius, relative humidity of more than 75 percent, pH between 3 and 6, and nutrient supply.[1]
The office and home are their favorite places, so let's take a look at the water cup:
1. Matching temperature: 20 ~ 30 degrees Celsius;
2. Perfect humidity: the relative humidity of the air around the liquid is 100%[2];
3. Appropriate pH [3]:
Such a comfortable environment, and good drinks, is rooted here.
The perfect growing environment meets a lazy person again, and naturally harvests this lump of white hair.
Mold spores, the seeds of mold, float in the air.
We don't have to worry too much, it will be destroyed after entering the human body and cannot survive.
However, when mold appears, friends who have allergies may appear: sneezing, runny nose, red eyes and rashes (dermatitis) and even asthma.
There are many types of mold, and under certain conditions, some secrete toxins, mycotoxins, which are a clear class of carcinogens [4,5].
The bad thing is that the mold is dark, we are in the light, do not know which one will be encountered, so they are treated as "may be harmful to deal with.".
Of course, putting aside the dose to talk about toxicity is also a hooligan, and there are not many people who often make the cup hairy.
However, health is no small matter, bit by bit, prevention is the most important!
After proper cleaning and disinfection, the cup is still usable:
Here comes the steps
1. Turn the faucet on, you can wash away most of the mold, but there will be fish that slip through the net, and the cleaning is not thorough;
2. Disinfection must be carried out, but it is not enough to use detergent.
The main ingredient of detergent is surfactant, which does not guarantee the complete killing of these toxic substances.
You can:
Method 1: Soak in boiling water for 5 to 10 minutes [1];
Method 2: If the cup can be heated in the microwave, heat on high heat for 5 to 10 minutes [6]. Of course, it is better to have a disinfected cupboard at home and can be cleaned very clean.
Zhimei finally reminds everyone:
Regardless of whether the cup has long hairs, you must wash the cup frequently, there are all kinds of bacteria floating in the air, and if you don't pay attention, you may be caught.
I heard a lawyer friend say that the health problems caused by the unclean cup cannot be identified as a work injury.
Reviewer
Cloud | heartlessly Ph.D. in Food Engineering, Department of Agricultural and Biological Engineering, Purdue University, USA
bibliography
Lan Jianli,Sticky Jingqi,Wang Huimin. Analysis and control of mold in food production environment[J].China Science and Technology Information,2014:175-176.
Li Shouxing. Dialectics of the relationship between water activity and relative humidity[J].Chinese Journal of Microbiology,1998(01):64.
[3] Li Famei, Analytical Chemistry[M], Fifth Edition, Beijing: People's Medical Publishing House, 2003
[4]Тутелъян ВА,Yang Ludi. New progress in mycotoxin metabolism and mechanism of action[J].Foreign Medicine (Hygienics Division), 1982(01):28-33.
Huang X J, Wang X M, Mao Dan, et al. Research progress on toxicity of mycotoxins of Aspergillus[J]. Journal of Food Safety and Quality Inspection, 2017(05):167-175.
Nie Jianhong,Wang Rui,Sun Wei,Zhu Yufeng,Ju Xiaohong. Experimental study on the sterilization effect of household microwave oven on four common pathogenic microorganisms[J].Laboratory Medicine and Clinical,2009(11):92-93.
Content production