Several major mechanisms of action of vacuum sealing machine
Vacuum sealers are no stranger to us, we often buy some vacuum food or other products. But few people know the mechanism of action, let me lead you to understand them! Vacuum sealing machine picture: best selling: Food vacuum packaging machine [recommended] small vacuum packaging machine [recommended] double chamber vacuum packaging machine [recommended] single room vacuum packaging machine [recommended] external pumping vacuum packaging machine [recommended] Reader Urinalysis Reagent Strip Urine test strips include test parameters for Nitrite, PH, Glucose, Protein, Occult Blood, Ketone, Bilirubin, Urobilinogen, Specific Gravity, Leukocyte, Ascorbic Acid, Ca, Creatinine and Microalbumin.
The test can be read between 60 and 120 seconds after dipping. Routine testing of the urine with multiparameter strips is the first step in the diagnosis of a wide range of diseases.
A wide range of applications, such as fitness, sports,drinking water, food, cooking oil
[Test Result Explanation]
Urobilinogen:This test area will detect urobilinogen in concentrations as low as 3μmol/L (approximately 0.2 Ehrlich) in urine.The normal range with this test is 3-16μmol/L.A result of 33μmol/L represents the transition from normal to abnormal, and the patient and/or urine specimen should be evaluated further. The negative results of this test cannot determine that there is no urobilinogen in samples.
Bilirubin:Normally no bilirubin is detectable in urine by even the most sensitive methods.Even trace amounts of bilirubin are sufficiently abnormal to require further investigation.Metabolites of drugs which give a color at low pH,such as pyridium and lodine etc,will interfere with the test of bilirubin,high concentration of ascorbic acid may cause false negative.
Ketone:The test strip reacts with acetoacetic acid in urine.It does not react with acetone or B-hydroxbutyric acid.Normal urine specimens usually yield negative results with this reagent,false positive results may occur with urine specimens which containing pigment or large amounts of levodopa metabolites.
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First of all, the main function of the vacuum sealing machine is to remove oxygen, which can prevent product deterioration, improve product quality and extend shelf life. The principle is very simple. Some foods contain microorganisms. They mainly rely on oxygen to survive. If vacuum sealing is used, the oxygen inside the product can be adjusted to make the product in a vacuum state, thus inhibiting the growth of microorganisms and allowing the microorganisms to lose their living environment. To ensure the quality of the product.
Secondly, the vacuum sealer does not inhibit all microbial growth. For example, some anaerobic bacteria, vacuum sealers can not inhibit its reproduction and enzymatic changes, causing food deterioration or discoloration, but these can be assisted by other methods. For example: refrigeration, quick freezing, high temperature sterilization, microwave sterilization, salting, etc.
Thirdly, in addition to inhibiting the growth of microorganisms, the vacuum sealer can also resist oxidation, because some oily products contain a large amount of unsaturated fatty acids, which are deteriorated and odorized by oxidation, so oxygen removal can effectively prevent food deterioration. In order to maintain the effect of preservation.
After zui, some products are not suitable for vacuum packaging. They must be vacuum-filled, such as some crunchy and fragile foods, easy-to-crack foods, and foods with sharp edges or high hardness that will pierce the bags. These products must be used. Vacuum inflatable packaging, the inflation pressure inside the packaging bag is stronger than the atmospheric pressure outside the packaging bag, so as to ensure that the product will not deteriorate and taste.
It can be seen from the above that the principle of the vacuum sealing machine is roughly the same, mainly by vacuuming the oxygen, so as to prevent the growth of microorganisms and the oxidation of some fatty acids, both of which rely on the air-filled packaging to keep the product fresh. , the role of quality. 
Urinalysis Test Strips Parameters is a basic diagnostic instrument used to determine pathological changes in the urine of standard urinalysis. urine test strip comprise of up to 12 different chemical pads or reagents which react (change color) when immersed in, and then removed from, a urine sample.
