Description

Potato Proteinase Inhibitor II-B is a specific serine protease inhibitor derived from potatoes (Solanum tuberosum). This compound is critical for controlling proteolytic activity in research and industrial processes, ensuring experimental integrity and product stability. It is primarily utilized by researchers in biochemistry and molecular biology, as well as by manufacturers in the biopharmaceutical and diagnostic reagent sectors.

Application

• Biochemical Research: Used as a specific inhibitor of trypsin, chymotrypsin, and other serine proteases in enzymatic studies and protein purification protocols.
• Pharmaceutical Development: Employed in bioprocessing to prevent unwanted proteolytic degradation of therapeutic proteins and peptides during production and storage.
• Diagnostic Reagents: Incorporated into assay kits and diagnostic formulations to stabilize sensitive protein components and ensure consistent performance.
• Food Science Research: Applied in studies of plant defense mechanisms and the role of protease inhibitors in nutritional quality and food processing.
• Cell Culture & Tissue Engineering: Used to modulate protease activity in cell culture media, protecting cells and extracellular matrix components from degradation.

Basic Information

Product Name	Potato Proteinase Inhibitor II-B
CAS No.	50812-33-4
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Potato Trypsin Inhibitor II-B; Potato Chymotrypsin Inhibitor; Solanum tuberosum Proteinase Inhibitor II-B; PTI II-B; PCI; Serine Protease Inhibitor from Potato; Trypsin-Chymotrypsin Inhibitor; Kunitz-type protease inhibitor from potato
EINECS	Contact for details

Quality Control

Our Potato Proteinase Inhibitor II-B is produced and tested under strict quality management systems. Each batch undergoes rigorous analytical testing, including activity assays and purity analysis, to ensure it meets the high standards required for research and industrial applications. A comprehensive Certificate of Analysis (COA) detailing purity, activity, and other critical parameters is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store at 2-8°C. This product is hygroscopic (moisture-sensitive) and should be handled in a dry environment to maintain stability and activity.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to reference standard
Assay (Activity)	≥ 95% (by trypsin inhibition assay)
Purity (HPLC)	≥ 90%
Loss on Drying	≤ 5.0%
Solubility	Soluble in water and buffer solutions

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.