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形狀
solid
品質等級
儲存期限
limited shelf life, expiry date on the label
包裝
pkg of 100 g
pkg of 5 kg
pH值
6.5-7.0 (20 °C, 100 g/L in H2O)
mp
158-160 °C
應用
microbiology
pharmaceutical
儲存溫度
15-25°C
適合性
Citrobacter spp.
Enterobacter spp.
Escherichia coli
Klebsiella spp.
Salmonella spp.
Streptococcus spp.
InChI
1S/C5H10O5/c6-1-3(8)5(10)4(9)2-7/h1,3-5,7-10H,2H2
InChI 密鑰
PYMYPHUHKUWMLA-UHFFFAOYSA-N
一般說明
L(+)-Arabinose, an aldopentose monosaccharide, is an isomer of D-galactose, commonly used as a substrate in bacterial growth media for the growth of arabinose-utilizing bacteria. It enters the bacterial cell through the phosphoenolpyruvate-dependent phosphotransferase system.
Microorganisms can only ferment specific carbohydrates, depending on the enzymes they possess to break down carbohydrates. Fermentation can be detected by gas production (CO2) in liquid media and/or color change of pH caused by acid production. L(+)-Arabinose is added to any sugar-free basal media to test the ability of the organism to hydrolyze arabinose as the sole source of carbon and energy during fermentation. Arabinose is typically fermented under acid and gas production by many Enterobacter and coliform bacteria.
Microorganisms can only ferment specific carbohydrates, depending on the enzymes they possess to break down carbohydrates. Fermentation can be detected by gas production (CO2) in liquid media and/or color change of pH caused by acid production. L(+)-Arabinose is added to any sugar-free basal media to test the ability of the organism to hydrolyze arabinose as the sole source of carbon and energy during fermentation. Arabinose is typically fermented under acid and gas production by many Enterobacter and coliform bacteria.
應用
L(+)-Arabinose is recommended to detect arabinose fermenting bacteria in food and environmental samples. They find their application in various sectors such as the food and dairy industry, water industry, pharmaceutical laboratory testing, cosmetic industry, environmental and sanitary testing, clinical diagnostic, etc.
分析報告
Identity (IR-spectrum): conforms
Spec. rotation [α²0/D (100 g/l, water): +103.0 - +105.0 °
Heavy metals (as Pb): ≤ 0.001 %
TLC-Test: conforms
Water: ≤ 0.5 %
Suitability for microbiology: conforms
Total aerobic microbial count (TAMC): ≤ 1000 CFU/g
Total combined yeasts/moulds count (TYMC): ≤ 100 CFU/g
Spec. rotation [α²0/D (100 g/l, water): +103.0 - +105.0 °
Heavy metals (as Pb): ≤ 0.001 %
TLC-Test: conforms
Water: ≤ 0.5 %
Suitability for microbiology: conforms
Total aerobic microbial count (TAMC): ≤ 1000 CFU/g
Total combined yeasts/moulds count (TYMC): ≤ 100 CFU/g
儲存類別代碼
11 - Combustible Solids
水污染物質分類（WGK）
WGK 3
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