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8 Year Exporter Roche Holdings - DL-Phenylalanine CAS:150-30-1 99% White powder – XD BIOCHEM

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8 Year Exporter Roche Holdings - DL-Phenylalanine CAS:150-30-1 99% White powder – XD BIOCHEM Detail:

Catalog Number XD90318
Product Name DL-Phenylalanine
CAS 150-30-1
Molecular Formula C9H11NO2
Molecular Weight 165.19
Storage Details Ambient
Harmonized Tariff Code 29224985

 

Product Specification

Appearance White crystals or crystalline powder
Assay 99%
Conclusion FCC V Grade
Lead ≤5mg/kg
Identification Meets the requirements
Loss on Drying ≤0.2%
Residue on Ignition ≤0.3%
Arsenic (As2O3) ≤2ppm
Heavy Metal (as Pb) ≤0.002%

 

Y. enterocolitica and Y. pseudotuberculosis are important food borne pathogens. However, the presence of competitive microbiota makes the isolation of Y. enterocolitica and Y. pseudotuberculosis from naturally contaminated foods difficult. We attempted to evaluate the performance of a modified Cefsulodin-Irgasan-Novobiocin (CIN) agar in the differentiation of Y. enterocolitica from non-Yersinia species, particularly the natural intestinal microbiota. The modified CIN enabled the growth of Y. enterocolitica colonies with the same efficiency as CIN and Luria-Bertani agar. The detection limits of the modified CIN for Y. enterocolitica in culture medium (10 cfu/ml) and in artificially contaminated pork (10(4) cfu/ml) were also comparable to those of CIN. However, the modified CIN provided a better discrimination of Yersinia colonies from other bacteria exhibiting Yersinia-like colonies on CIN (H2S-producing Citrobacter freundii, C. braakii, Enterobacter cloacae, Aeromonas hydrophila, Provi dencia rettgeri, and Morganella morganii). The modified CIN exhibited a higher recovery rate of Y. enterocolitica from artificially prepared bacterial cultures and naturally contaminated samples compared with CIN. Our results thus demonstrated that the use of modified CIN may be a valuable means to increase the recovery rate of food borne Yersinia from natural samples, which are usually contaminated by multiple types of bacteria.


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Reliable quality and good credit standing are our principles, which will help us at a top-ranking position. Adhering to the tenet of "quality first, customer supreme" for 8 Year Exporter Roche Holdings - DL-Phenylalanine CAS:150-30-1 99% White powder – XD BIOCHEM , The product will supply to all over the world, such as: Liverpool, Montreal, Hyderabad, Certainly, competitive price, suitable package and timely delivery will be assured as per customers' demands. We sincerely hope to build business relationship with you on the basis of mutual benefit and profit in the very near future. Warmly welcome to contact us and become our direct cooperators.
  • As a veteran of this industry, we can say that the company can be a leader in the industry, select them is right.
    5 Stars By Cornelia from Rwanda - 2017.07.07 13:00
    The goods we received and the sample sales staff display to us have the same quality, it is really a creditable manufacturer.
    5 Stars By EliecerJimenez from New Delhi - 2017.08.18 18:38
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    8 Year Exporter Roche Holdings - DL-Phenylalanine CAS:150-30-1 99% White powder – XD BIOCHEM