Pancreatin Viral Load Separation via Multistage Centrifugation
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Solution Overview
Problem
Current methods lack a reliable way to separate and quantify viral contaminants in pancreatin samples due to incompatibility of enzymatically active constituents with cell lines used for virus multiplication, making it difficult to determine the virus titer.
Innovation Solution
A multistage centrifugation process is employed to separate the viral load from pancreatin samples, involving low-speed centrifugation to remove disruptive constituents and ultracentrifugation in a discontinuous sucrose gradient to isolate and quantify the viral load, using suitable cell culture media and antibiotics to maintain viral integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional virus multiplication methods are used in pancreatin samples, then viral load can be determined, but the enzymatically active constituents of pancreatin are incompatible with the cell lines used for multiplying viruses
Solution Approach 1:
The patent extracts and removes the disruptive enzymatically active constituents of pancreatin before subjecting the sample to virus multiplication assays. This separation allows the cell lines to function properly without being inhibited by the enzymes, thereby enabling accurate viral load determination while resolving the compatibility issue.
Solution Approach 2:
The patent segments the pancreatin sample into separate components, isolating the viral load from the enzymatically active constituents. By dividing the sample and treating different components separately, the method enables virus multiplication in a cell line-compatible environment while preserving the ability to quantify viruses in the original pancreatin context.
2Ease of operation
If pancreatin samples are directly used for virus multiplication, then the process is simple, but the enzymatically active constituents interfere with cell line function and virus multiplication
Solution Approach 1:
The patent applies preliminary treatment to the pancreatin sample by removing or neutralizing the enzymatically active constituents before the virus multiplication step. This preparatory action prevents enzyme-cell line incompatibility from interfering with subsequent measurements, making the overall process more reliable despite the additional initial step.
3Stability of the object's composition
If viral load is not separated from pancreatin sample, then sample integrity is maintained, but accurate quantification of viral titers cannot be achieved due to harmful effects on cell lines
Solution Approach 1:
The patent introduces an intermediary treatment step that removes or deactivates the enzymatically active constituents, which act as harmful factors to the cell lines. This intermediary action allows the viral load to be quantified accurately without compromising the fundamental integrity and composition of the original pancreatin sample.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This method effectively separates and quantifies viral loads in pancreatin samples, reducing harmful effects on cell lines and allowing for accurate determination of viral titers, enhancing the safety and quality of pharmaceutical products.
Implementation Method 1
separating the viral load from a pancreatin test sample subjected to a multistage centrifugation process
Implementation Method 2
ultracentrifugation in a discontinuous sucrose gradient to isolate and quantify the viral load
Implementation Method 3
transfer of the viral load from the pancreatin test sample supernatant into a target fraction of the discontinuous gradient medium is substantially complete
Data Source
AI summary
Processes for separating an infectious viral load from a pancreatin sample and for quantitatively determining the viral load in a pancreatin sample are described herein.