CAS No.: | 12650-88-3 |
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Formula: | C15h20o4 |
EINECS: | 235-747-3 |
Certification: | ISO, FDA, HACCP |
Packaging Material: | Paper |
Storage Method: | Normal |
Samples: |
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Customization: |
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Suppliers with verified business licenses
Product Name:
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lysozyme
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Other Name:
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Lysozyme hydrochloride
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Extraction source:
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Egg-white
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Main ingredients:
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lysozyme, glucose
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Product specification:
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50-2000 FIP U / Mg (customizable)
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Appearance:
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White to yellowish powder
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Solubility:
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It is easy to dissolve in water. The aqueous solution is clear and transparent liquid, but insoluble in ether and acetone
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Storage method:
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It is recommended to store in a cool and dry environment and keep away from light. Storage temperature: below zero.
If the temperature and humidity are too high, it is necessary to increase the dosage of enzyme.
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Shelf life:
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12 months
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Limits of heavy metals and microbial indicators
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Item
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Standard
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Test method
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Pb (mg/kg)
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5.0
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GB5009.75 or GB5009.12
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As (mg/kg)
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3.0
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GB5009.11
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Total bacterial count
(CFU/g or CFU/ml)
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50000
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GB4789.2
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Coliform (CFU/g or CFU/ml)
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30
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GB4789.3
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Escherichia Coli
(CFU/g or CFU/ml)
or (MPN/g or MPN/ml)
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10
or 3.0
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GB4789.38
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Salmonella( 25g or 25ml)
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Negative
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GB4789 .4
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The product quality is in line with GB1866.174-2016, FCC, USP/NF
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Lysozyme can effectively hydrolyze peptidoglycan in bacterial cell wall, and the hydrolysis site is the β - 1.4 glycosidic bond between the 1-carbon atom of n-acetyl-cell wall acid (NAM) and the 4-carbon atom of N-acetylglucosamine (NAG). Peptidoglycan is the main component of bacterial cell wall. It is composed of Nam, NAG and peptide "tail" (usually four amino acids). Nam and nag are connected by β - 1.4 glycosidic bond, while peptide tail is connected to the third carbon atom of Nam through d-lactacyl carboxyl group. Peptide tails are connected by peptide "bridge" (peptide bond or a few amino acids). Nam, nag, peptide "tail" and peptide "bridge" are composed of them Peptidoglycan is a kind of multi-layer network structure, which is the skeleton of cell wall. Any chemical bond break in the above structure can lead to the damage of bacterial cell wall. For Gram-positive bacteria (G +), such as Micrococcus luteus, Bacillus subtilis or Micrococcus lysozyme, the content of peptidoglycan in cell wall of Gram-positive bacteria (G +) is different from that of Gram-negative bacteria (G -), such as Escherichia coli, proteus, dysentery bacilli and pneumoniae. Almost all the cell walls of G + bacteria are composed of peptidoglycan, while only the inner wall layer of G-bacteria is peptidoglycan+ The cell wall of bacteria is stronger than that of G-bacteria.
Packing
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1kg/bag ,25kg/bag;25kg/drum; according to your requirements
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Transit
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Fedex, TNT,DHL,EMS,and so on.
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Port
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Shanghai/Tianjin/Dalian/Beijing/Xi'an
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Lead Time
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3-5 working days upon received the payment
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For mass orders, it will be delivered by air or sea. Depending on your location, please allow 1-5 business days for your order to arrive. For small order, please expect 3-7 days by UPS DHL EMS. For mass order, please allow 5-8 days by Air, 15-30 days by Sea. |
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