seebio 尿素/氨快速檢測試劑盒—西寶生物
參考價 | ¥ 18 |
訂貨量 | ≥1 |
- 公司名稱 西寶生物科技(上海)股份有限公司
- 品牌
- 型號 seebio
- 產地 1
- 廠商性質 經銷商
- 更新時間 2016/11/23 11:16:49
- 訪問次數 188
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尿素/氨快速檢測試劑盒—西寶生物
產品品名:尿素/氨[快速]檢測試劑盒
英文品名:Urea/Ammonia (Rapid) Assay Kit
規格型號:100 assays - 50 of each component
For the specific and rapid assay of urea and ammonia in water,beverages, milk and food products.
上海西寶生物專業提供尿素/氨[快速]檢測試劑盒,
:王 :
INTRODUCTION:尿素/氨快速檢測試劑盒—西寶生物
Urea and ammonia are widely occurring natural compounds. As urea is themost abundant organic solute in urine, and ammonia is produced as aconsequence of microbial protein catabolism, these analytes serve asreliable quality indicators for food products such as fruit juice, milk,cheese, meat and seafood. Ammonium carbonate is used as a leaven inbaked goods such as quick breads, cookies and muffins. Unlike some otherkits, this kit benefits from the use of a glutamate dehydrogenase thatis not inhibited by tannins found in, for example, grape juice and wine.In the wine industry, ammonia determination is important in thecalculation of yeast available nitrogen (YAN). YAN is comprised of threehighly variable components, free ammonium ions, primary amino nitrogen(from free amino acids) and the contribution from the sidechain ofL-arginine1. For the most accurate determination of YAN, all threecomponents should be quantified, and this is possible using Megazyme’s L-Arginine/Urea/Ammonia Kit (K-LARGE) and NOPA Kit (K-PANOPA). Urea determination can be important in preventing theformation of the known carcinogen ethyl carbamate (EC) in finished wine.尿素/氨快速檢測試劑盒—西寶生物
KITS:
Kits suitable for performing 50 assays (of each) are available fromMegazyme. The kits contain the full assay method plus:
Bottle 1: Buffer (18 mL, pH 8.0) plus 2-oxoglutarate and sodium azide (0.02% w/v) as a preservative. Stable for > 2 years at 4°C.
Bottle 2: NADPH. Lyophilised powder. Stable for > 5 years at -20°C.
Bottle 3: Glutamate dehydrogenase suspension (1.1 mL). Stable for > 2 years at 4°C.
Bottle 4: Urease solution (2.7 mL). Stable for > 2 years at -20°C.
Bottle 5: Urea control powder (~ 2 g). Stable for > 2 years at room temperature.