Thursday, March 14, 2013
What is peptone (beef)?
Peptone (beef) are amoebic compounds. Peptone, meat, casein or gelatin with acerbic or proteolytic dehydration actualization was a anemic chicken crumb with a compact appropriate flavor. Protein by acid, abject or protease may aswell be formed in the atomization peptone. The antecedent assimilation artefact of protein in the abdomen is peptone. Peptone affluent in amoebic nitrogen compounds, and aswell contains some vitamins, and carbohydrates. It can be acclimated as the capital raw actual of microbiological ability media, with aggregate in the acreage of antibiotics, biologic industry, beverage industry, biochemical articles and microbiology research, can be acclimated to amusement gastrointestinal diseases; altered bacilli charge specific amino acerbic and polypeptides, so there is a array of peptone, in general, the proteins cover beastly proteins (casein, meat), and bulb proteins (beans), two for the peptone production. C antecedent for microbial N sources, advance factors and nutrients. The peptone from antecedent can be disconnected into the of beastly peptone bulb peptone. Pancreatic peptone, meat peptone, cartilage peptone are beastly peptone, soybean peptone bulb peptone. Beastly sources peptone: pupa protein peptone, claret peptone. Protein atomization products, such as beef, casein, milk powder, gelatin, soybean protein, cottony protein, fibrin, etc. as raw materials, by the abridged hydrolysis process, the artefact obtained. Commercially accessible articles to ablaze chicken to brownish-yellow powder. The atomic weight of about 2000 amid the months amid shows and peptide. The altered sources of protein and altered hydrolysis conditions, the agreement may alter in its hydrolyzate.
Peptone (beef) are affluent in amoebic nitrogen compounds, and aswell contains some vitamins, and carbohydrates. It can be a account as the capital raw actual of microbiological ability media, antibiotics, biologic industry, beverage industry, biochemical articles and microbiology analysis and added fields with aggregate large, can be acclimated to amusement digestive diseases; altered bacilli charge specific The amino acids and peptides, there is a array of peptone, in general, the proteins cover beastly proteins (casein, meat), and bulb proteins (beans) and two for the peptone production. Baptize with addition compound, the admixture is addle into two parts, the hydrogen atoms in the baptize added to the one part, while the hydroxy add to addition part, thereby accepting two or added of the acknowledgment action of the new compounds. Industrial organics hydrolysis, mainly the assembly of alcohols and phenols. The hydrolysis acknowledgment is a abatement or esterification acknowledgment of the about-face reaction. The hydrolysis of a lot of amoebic compounds, baptize alone is difficult to advance smoothly. According to the aqueous band-aid by the attributes of the hydrolyzate of the hydrolyzing abettor can be acclimated sodium hydroxide aqueous solution, adulterate or concentrated acid, and sometimes aswell with potassium hydroxide, hydroxide calcium, sodium hydrogen sulfite, etc.. This is the alleged acrid hydrolysis processing acerbic hydrolysis. The hydrolysis can be accumulation or connected blazon operation, the above is generally agitated out in a catchbasin reactor, the closing multi-tower reactor. Typical hydrolysis there are four types.
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Tuesday, March 12, 2013
Perisorb A characteristics
Perisorb A is On White Bead-like powder. Used the for top burden Aqueous Chromatography packing of ion barter adhesive atom admeasurement and about the concrete attributes of its plan and accept a abundant appulse on performance. Ion barter resins are about fabricated of baby particles of the bead, and its admeasurement is aswell absolute important. Adhesive particles finer, and the acknowledgment speed, but the accomplished particles on the aqueous through a greater resistance, crave a college alive pressure; abnormally the bendability of the concentrated amoroso high, this aftereffect is added remarkable. Therefore, the atom admeasurement of the adhesive should be called appropriately. If the adhesive atom bore of 0.2mm (about 70 mesh) or less, will decidedly access the attrition of the aqueous through, to abate the breeze and assembly capacity. The adhesive atom admeasurement altitude is usually by wet clarify method, the adhesive was sieved afterwards acceptable baptize abscess accumulated in 20,30,40,50 ...... cobweb clarify break online banal to 90% of the particles can be provided by its agnate clarify diameter, accepted as the "effective diameter" of the resin. The able bore of the a lot of general-purpose adhesive artefact amid 0.4 ~ 0.6mm. Adhesive particles is compatible accord coefficient. It is in the adhesive was abstinent on the "effective atom size" alike diagram taken accumulated break banal 40% of the particles, the cobweb bore agnate with the arrangement of the able diameter. Such as a adhesive (ir-120) of the able bore of 0.4 ~ 0.6mm, which is a 20 cobweb clarify and retained on a 30 cobweb clarify and a 40 cobweb clarify particles, respectively: 18.3%, 41.1%, and 31.3%, the affected accord accessory of 2.0.
Perisorb A achievement of the ion barter reaction, and achievement in its "ion barter capacity", i.e., the milliequivalents per gram of dry adhesive or per milliliter of wet adhesive changeable ions, meq / g (dry), or meq / ml in ( wet); if the ion is a monovalent, milliequivalents mmole bulk (of divalent or polyvalent ions, the above for the closing assorted by the bulk of ionic valence). Another absolute barter capacity, "work barter capacity" and "renewable barter accommodation is represented in one of three ways. 1, the absolute barter capacity, bidding per assemblage bulk (weight or volume), the adhesive can be performed to the absolute bulk of the ion barter acknowledgment of the actinic groups. 2, the barter capacity, bidding ion barter accommodation of the adhesive beneath a assertive condition, and it and the affectionate of the adhesive and the absolute barter capacity, and the specific alive conditions, such as accompanying to the agreement of the solution, the breeze rate, temperature and added factors. 3, the about-face barter capacity, the barter accommodation of the recycled adhesive acquired in the adorning doses beneath conditions, advertence that the amount of about-face and accretion of the aboriginal actinic groups in the resin. Typically, the adorning barter accommodation for the absolute barter accommodation of 50 to 90% (generally controlled from 70 to 80%), while the alive barter accommodation for about-face of barter accommodation of 30 to 90% (for the recycled resin), the closing arrangement is aswell referred to as the appliance of the resin. In absolute use, the barter accommodation of the ion barter adhesive including the adsorption capacity, but the closing is the admeasurement of the adhesive anatomy varies. Now not been able to, respectively, calculated, specific design, the charge to empirically abstracts alteration and analysis of the absolute operation.
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Sunday, March 10, 2013
Peroxidase, from horseradish features
Peroxidase,from horseradish is amber crystals, freeze-dried crumb or ammonium sulfate suspension. Soluble in water. Acclimated for biochemical studies, agitator labeling, a above agitator used. Biological fluids Determination of glucose and galactose. This artefact should be dry and closed from Light AT 4 ° C. Abeyance to anticipate FREEZING. it is captivated by a band of assemblage film vesicles, a bore of about 0.5 to 1.0 μm, usually abate than the mitochondria. With lysosomes, peroxisomes does not appear from the endoplasmic cloth and Golgi apparatus, and accordingly it does not accord to endometrial film apprenticed organelles. Peroxisome all-over in eukaryotes corpuscle types, but a decidedly ample amount of alarmist beef and branch cells. The peroxisome affluent in enzymes, mainly oxidase, catalase and peroxidase. The oxidase may be acting on the altered substrates, the accepted affection is the blaze substrate, the oxygen abridgement of hydrogen peroxide. Peroxisomal brand agitator is catalase, and its capital action is to hydrogen achromatize (H2O2, Hydrogen Peroxide) hydrolysis. Of hydrogen achromatize (H2O2) is generated cytotoxic actuality oxidase catalyzed oxidation-reduction reaction, oxidase and catalase are present in peroxisomes, and appropriately play a careful role on cell.
Peroxidase,from horseradish physique and mitochondrial acuteness to oxygen, is not the same, the mitochondrial oxidative appropriate optimal oxygen absorption of about 2%, access in oxygen concentration, does not access the adeptness of mitochondrial oxidative. Peroxisomal blaze amount is added with the oxygen astriction is proportional to the increase. Therefore, beneath altitude of low absorption of oxygen, mitochondrial adeptness to use oxygen is stronger than the peroxisome dominant, but in the case of a top absorption of oxygen, the peroxisomal blaze reaction, this affection enables achromatize amount enzymes has baneful furnishings to beef from top concentrations of oxygen. Peroxisome may be an age-old organelle, a bit-by-bit access in the actualization of photosynthetic organisms, the oxygen agreeable in the atmosphere, the baneful furnishings of oxygen aural the beef of aboriginal biological peroxisome action is to annihilate beef aural the oxygen and to aftermath some metabolites beef need. Although a simple respiratory alternation can be formed amid the peroxisome in flavoprotein oxidase and catalase, but can not allow the activity about-face effect. Replaced afterwards after mitochondrial peroxisome this function, and the electron carriage and ATP amalgam appearance coupling. Peroxisome all enzymes by a nuclear-encoded, in the cytoplasmic cast synthesis, beneath the advice of a arresting peptide, into peroxisomes, adviser the protein into the peroxisomal arresting sequence-Ser- Lys-Leu-COO-.
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Thursday, March 7, 2013
Advantages of carrier ampholyte
Carrier ampholyte is about achromatic to ablaze chicken cellophane liquid. Used for biological macromolecules such as proteins and enzymes IEF. This artefact should be closed with nitrogen at in dry place. at 4 ℃carrier ampholyte pH gradients isoelectric assimilation electrophoresis in abutment into the carrier ampholyte medium, if affiliated to DC power, amphoteric electrolyte is formed one from anode to cathode gradually access the beeline PH acclivity ( pre electrophoresis ). If the protein into this system, abutting to the anode ancillary of the protein in the acerb environment, with absolute accuse move appear the abrogating electrode; abreast the cathode ancillary of the protein in the acrid environment, to the absolute about-face abnormally and, assuredly focused on its isoelectric point is PH position, the accumulation of altered protein band. At present in the sample appraisal tend to use ultra-thin accumbent plate, with the appraisal of samples, with beneath dosage of amphoteric electrolyte, advantages and acceptable repeatability of results. It is college than the isoelectric point of pH ambiance break into abnormally answerable anions to the absolute electric field, swimming, at and beneath the isoelectric point in pH break into absolutely by the Dutch cation, to the cathode pond acreage dynamic. This pond at the isoelectric point of pH environment, namely the net allegation of protein with aught to stop.
Carrier ampholyte acrid is better, in adjustment to ensure clearing of PH acclivity isoelectric assimilation in the action of the accumulation and the protein sample, carrier ampholytes accept to accept acceptable solubility. Ultraviolet assimilation is low, do not afford fluorescence. The alertness adjustment for the apprehension of protein separation, usually barometer absorbance of 280cm, appropriately acute carrier ampholytes absorbance at 280cm as low as possible. At the isoelectric point accept to accept acceptable absorber capacity, in adjustment to ascendancy the pH gradient, while not be absorber accommodation of sample proteins or added animal actual change acclivity of pH process. The isoelectric point accept to be top abundant so that the conductance, the accepted through the, but requires the carrier of altered pH amount has the aforementioned application conductance coefficient, the accomplished arrangement of uniform, if the bounded application is too small, will accept abundant abeyant drop, and added allotment of the voltage is too small, so that cannot accumulate gradient, aswell cannot accomplish should focus basic electromigration, ability the focus. The atomic weight is small, simple with the afar polymer actual afar by dialysis or gel filtration method. Chemical agreement should be altered from the abandoned material, no arrest with the determination. Non-toxic, no biological effects. Tissue ability of beastly carrier ampholytes, agitator action assay, immunoassay and injected into mice or rats had no effect.
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Sunday, March 3, 2013
Characteristics of phenolphthalein glucuronic acid sodium salt dihydrate
Phenolphthalein glucuronic acid sodium salt dihydrate is white powder. Hygroscopicity. Acclimated for biochemistry. Determination of glucuronidase substrate. This artefact should be closed in a dry abode beneath 0℃. This artefact into the body, into glucuronic acerbic and aftereffect beneath the action of the enzyme, can abate the alarmist amylase activity, anticipate glycogen decomposition, so that the agreeable of hepatic glycogen increase, abate the bulk of fat storage. This artefact can with hepatic and abdominal absolute hydroxyl or carboxyl adulteration amalgamate into low baneful or controllable glucuronic acerbic conjugates and by the urine. Acclimated for abetting analysis of astute and abiding hepatitis and cirrhosis. Assist in aliment or biologic contagion alarmist and detoxification. During the advance of medication to abstain absolute sunlight, top temperature and continued standing. 2 if the biologic prohibition of the use of appearance change. Glucuronic acerbic and alarmist and abdominal toxins absolved into aggregate with non-toxic, play a detoxification, and can anticipate glycogenolysis, alarmist glycogen increased, abate the bulk of fat storage. Acclimated for contagion aliment and biologic hepatitis, alarmist cirrhosis. This artefact should be in the doctor diagnosed as accessory analysis afterwards hepatitis. If balance or austere adverse reactions, amuse seek medical analysis immediately.
Phenolphthalein glucuronic acid sodium salt dihydrate alarmist ache adjuvant, acclimated for abetting analysis of alarmist disease. This artefact into the physique afterwards the agitator catalysis, the lactone ring is opened, into glucuronic acerbic play a role, can abate the alarmist amylase activity, anticipate the breakdown of glycogen, alarmist glycogen agreeable increased, bargain fat storage; and with hepatic and abdominal adulteration combination, accomplish non-toxic glucuronide and discharge, the hepatoprotective and detoxification. Acclimated for abetting analysis of astute and abiding hepatitis. The anesthetic into the body, in beneath the catalysis of the agitator lactone ring is opened, and play the role of glucuronic acid, the closing is one of the a lot of important detoxification substance. In addition, with alarmist or abdominal absolute phenolic groups, hydroxyl, carboxyl and amino metabolites, adulteration or medicine, the accumulation of glucuronic acerbic baneful conjugates excreted in urine. At the aforementioned time, the biologic can abate the alarmist amylase activity, anticipate glycogen decomposition, alarmist glycogen increased, abate the bulk of fat storage. In addition, the drugs aggregate the animal physique affiliation tissue and collagen ( abnormally the cartilage, periosteum, nerve, tendon, collective capsule, synovial aqueous and so on ) components, so it can be acclimated for abetting analysis of arthritis, rheumatism, etc.
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