Propargyl-PEG5-t-butyl ester has one of the functional groups protected by t-butyl group. The protection can be removed under acidic conditions. The propargyl group forms triazole linkages with azide-bearing compounds or biomolecules via copper catalyzed Click Chemistry. The PEG units help improving the water-solubility of the molecule in aqueous media. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
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Propargyl-PEG5-t-butyl ester has one of the functional groups protected by t-butyl group. The protection can be removed under acidic conditions. The propargyl group forms triazole linkages with azide-bearing compounds or biomolecules via copper catalyzed Click Chemistry. The PEG units help improving the water-solubility of the molecule in aqueous media. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
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Propargyl-PEG8-NHS ester
Product Info
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Product Info
Propargyl-PEG8-NHS ester is an amine reactive compound with an alkyne group. The alkyne group reacts with azide-containing biomolecules in Click Chemistry reactions, copper is needed as a catalyst. The hydrophilic PEG units helps the compound to have better solubility in aqueous environment. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
Document
Propargyl-PEG8-NHS ester is an amine reactive compound with an alkyne group. The alkyne group reacts with azide-containing biomolecules in Click Chemistry reactions, copper is needed as a catalyst. The hydrophilic PEG units helps the compound to have better solubility in aqueous environment. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
Mastitis is the single most costly disease of dairy cattle resulting in the reduction of milk yield and quality. The inflammation of the utter is mainly caused by infection of various bacteria. Streptococcus dysgalactiae, a Lancefield group C α-hemolytic gram-positive bacteria, is a common pathogen in subclinical and clinical mastitis causing substantial economic losses in dairy herds. Streptococcus dysgalactiae has been isolated from infected mammary glands and teat injuries and is transmitted primarily during milking. However, detection of S. dysgalactiae in other cow tissues such as tonsils, mouth and vagina, and occurrence of S. dysgalactiae mastitis during the non-lactating period in herds, suggests that the organism also behaves as an environmental pathogen.
Storage Conditions and Product Stability All kit components can be stored for 2 years after the date of production without showing any reduction in performance.
All kit components should be stored at -20°C upon arrival. Repeated thawing and freezing (> 2 x) of the Master Mix and Positive Control should be avoided, as this may affect the performance of the assay. If the reagents are to be used only intermittently, they should be frozen in aliquots.
Short term stability: 2-8oC, Long term stability: See individual component labels
Stability:
> 2 years under recommended storage conditions
Analyte:
Protein Digestibility
Assay Format:
Spectrophotometer
Detection Method:
Absorbance
Wavelength (nm):
570
Signal Response:
Increase
Total Assay Time:
~ 6 h (over 2 days)
Application examples:
Protein containing foods and feeds.
Method recognition:
Novel Method (Under Patent: U.S. Pat. No. 9,738,920)
The Protein Digestibility Assay Kit (K-PDCAAS) is used for in vitro measurement of the Animal-Safe Accurate Protein Quality Score (ASAP-Quality Score Method) developed under patent by Medallion Labs. This digestibility score, in conjunction with the essential amino acid profile plus protein and moisture content of the sample, is used to calculate the Protein Digestibility Corrected Amino Acid Score (PDCAAS) value.
The Protein Digestibility Assay Kit (K-PDCAAS) is used for in vitro measurement of the Animal-Safe Accurate Protein Quality Score (ASAP-Quality Score Method) developed under patent by Medallion Labs. This digestibility score, in conjunction with the essential amino acid profile plus protein and moisture content of the sample, is used to calculate the Protein Digestibility Corrected Amino Acid Score (PDCAAS) value.