Inline instruments can supplement lab analysis to provide real-time measurements for quality control in food plants. This reduces production downtime, manual sampling time, and off-spec product. Inline analyzers exist for common measurements like pH, viscosity, conductivity, and can detect issues like entrained air. Food plants that have installed inline analyzers have seen benefits like reduced costs from better process control and elimination of manual sampling labor. The first steps are evaluating which lab measurements can be replaced by inline instruments and identifying which processes would benefit from real-time measurements.
Supplementing lab analysis with inline quality measurements in food Industryola wesstrom
White paper describing various ideas how instrumentation can be used to supplement traditional lab measuerments to improve production yield, reduce re-work and to improve productivity of lab personnel in food industry
Learn about the benefits of including inline instrumentation in your food plant or related business. This high quality white paper describes what you need to know to get the most out of utilizing inline analyzers including how they can provide:
Improved Reliability
Seamless Integration
Simplified Calibration
As well as, how to get started in getting your business prepared for inline instrumentation.
Supplementing lab analysis with inline quality measurements in food Industryola wesstrom
White paper describing various ideas how instrumentation can be used to supplement traditional lab measuerments to improve production yield, reduce re-work and to improve productivity of lab personnel in food industry
Learn about the benefits of including inline instrumentation in your food plant or related business. This high quality white paper describes what you need to know to get the most out of utilizing inline analyzers including how they can provide:
Improved Reliability
Seamless Integration
Simplified Calibration
As well as, how to get started in getting your business prepared for inline instrumentation.
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Watch webinar here: http://www.designworldonline.com/clean-in-place-h…nt-effectiveness/
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Clean-in-place: how to ensure food safety while maintaining equipment effecti...Design World
Negative PR from food safety violations has never been more prevalent than in today’s interconnected world. Manufacturers are in a constant battle to provide maximum food safety while maintaining throughput.
This webinar will focus on ways to ease these seemingly conflicting goals and introduce Baumer’s broad portfolio to aid with Clean-in-place solutions.
Watch webinar here: http://www.designworldonline.com/clean-in-place-h…nt-effectiveness/
Neologic Engineers, Clean-in-place (CIP) is an automated method of cleaning the interior surfaces of pipes, tanks, lines, process equipment.(CIP) Systems Reduce Cleaning Time and Costs. CIP Controls of all important parameters like time, temperature, flow, concentration.
CIP vs COP - Hygienic Pumps and Meeting Government Regulations - Carotek Proc...Carotek
Learn about the recent trends and legislation that impacts COP vs CIP in the food & beverage processing and pharmaceutical markets. Learn what to look for in equipment selection to maximize process efficiency and flexibility, while meeting hygienic requirements.
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Food, Pharma and several other manufacturing industries need compressed air with precise control on oil-in-air, dust particles and moisture levels. Instruments and standards of compressed air quality are described by Imtiaz Rastgar, Chairman Rastgar Group and Ex CEO of Engineering Development Board, Ministry of Industries, Government of Pakistan, Islamabad.
White paper - Continued process verification methods in cleaning validationFedegari Group
An increasing interest in continued process verification has brought to the spread of on-line assay methods in cleaning processes. This paper deals with two different on-line applications: conductivity sampling and the Total Organic Carbon analysis for washing machines.
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The students will get a glimpse of industrial bioprocess from this presentation. Additionally, it will help students make the transition from academia to industry.
In this presentation from CPhi 2014, Elise Gallais outlines the guidelines for cleaning validation: and focuses on analytical methods and their validation.
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The development and manufacture of biopharmaceuticals is a dynamic and rapidly growing industry. By the nature of their production, biopharmaceuticals are highly complex heterogeneous mixtures that require many analytical techniques for characterization and routine testing. As a result, many manufacturers incorporate life cycle management into their respective workflows to take advantage of newer technologies and methodologies to ensure efficacy and patient safety.
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Learn:
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- Which parameters influence method transfer from one LC platform to another.
- How workflows can benefit from features such as Multi-flow path technology and Gradient SmartStart when transitioning methods.
Interested in more detail? Watch the related on-demand webinar: http://view6.workcast.net/register?pak=3479247014905635
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2. Heatmap utilization for testing
3. Optimization of testing processes
4. Demo
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Orchestrator execution result
Defect reporting
SAP heatmap example with demo
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https://alandix.com/academic/papers/synergy2024-epistemic/
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Supplementing lab analysis with inline quality measurements in food manufacturing
1. Supplementing Lab Analysis with
Inline Measurements
Reduce production down time, off-spec product and time-consuming
manual grab sampling in food plants with inline instrumentation
By Ola Wesstrom, Food & Beverage Industry Manager – Endress+Hauser
Food plant managers are faced with many challenges today, not the least of which is ensuring product quality. Depending on
the product being made, they may have to meet the requirements of the Food & Drug Administration (FDA), European Union
(EU), and an alphabet soup of other agencies and regulations, including cGMP, GFSI, ISO, HACCP, SQF, SID, etc. These
regulations specify proper ingredients, chemical and biological hazards, procedures and sanitary conditions.
Food plant managers also have to meet the expectations of consumers for proper taste and texture. For example, the pH of
certain products is critical, because it can affect taste as well as food safety. When adding citric acid to jams, beverages and
other products for acidification, pH must be carefully controlled.
On top of the obvious food safety and product quality challenges, a
plant manager also needs to address operational issues and goals
such as:
• Product loss reductions
• Variable in raw materials
• Resource conservation such as energy and water reductions
• Loss of qualified operators and maintenance people
• Need to reduce operating and maintenance budgets
• Prepare and manage documentation for internal and external audits
Historically, food plants have relied on laboratory analysis (Figure 1) of
samples collected manually to ensure product quality at various points
in a process. Lab technicians would periodically take a grab sample,
hurry back to the lab for a quick analysis, and communicate the result
to plant personnel. Operators and maintenance personnel would then
make adjustments and corrections to improve control of the process, or
to make repairs when required.
The problem with relying on lab analyses is that it’s not done in real
time, it’s time-consuming, it’s labor intensive and it has possibility for
manual errors. If it takes 30 minutes to grab a sample and analyze it,
then the result represents where the process was 30 minutes ago — not
now. The result could be a spoiled batch. If the measurement had been
done inline, a sudden deviation would be detected, allowing for instant
corrective action that could save the batch.
Figure 1: Taking samples from the process for analysis in the
plant’s lab is the tried-and-true method for ensuring quality
control. It’s also expensive and not a real-time measurement.
2. In this article, we’ll show examples how readily available instrumentation can be used for online quality control to replace or
supplement laboratory testing, speed up measurements, enable immediate corrective actions, automate the entire quality
control system, and deal with many of the other problems facing food plant managers.
Inline Analyzers
Inline analyzers are not available for every type of measurement in the food industry, but are available for many of the common
measurements now being performed in labs. Table 1 is a list of typical measurements available with inline instruments.
Table 1: Inline Analytical Measurements
• Mass flow for accurate recipe management
• Density, Brix, Plato, Baumé,˚SAL, rate of fermentation
• % concentration (solids, alcohol, etc.)
• pH (using non glass pH sensors)
• Viscosity
• Conductivity
• Dissolved oxygen
• Chlorine
• Turbidity
• Color
• Specific gravity
Using inline analyzers helps management deal with many issues. For example, the amount of disinfectant used on a hydro
cooker (Figure 2) for canned food needs to be closely controlled to ensure food safety, as overdosing can cause corrosion and
waste of chemicals, while too little can compromise food safety. One plant previously monitored disinfectant by taking grab
samples to a lab for analysis twice an hour.
Inline analyzers were installed to measure free chlorine, pH, and conductivity of the disinfectant. Real-time measurement saved
$13,000 annually in disinfectant costs by eliminating overdosing. These measurements also allowed the automation system to
add makeup water based on measured values, saving on heat energy and water usage, and producing less wastewater. The
inline analyzers also eliminated the need to send a lab worker to the hydro cooker two times an hour to take grab samples. The
bottom line was a payback period of just seven months.
In a similar example of how inline analyzers can cut
expenses, a cheese plant performed five clean-in-place (CIP)
operations per day. The chemicals cost $1,771 for a
30-gallon drum, and the plant used three to four drums per
month.
The plant installed an Endress+Hauser OUSAF11 optical
phase separation sensor. Using visible and near-infrared
wavelengths of light, the OUSAF11 can be used for product
loss detection, interface detection, and suspended solids and
turbidity measurements.
By measuring phase separation between whey, water and
CIP detergent in the line, operators were able to determine
when the pre-rinse and CIP was complete, instead of relying
on lab measurements and timing. Each CIP cycle was
reduced by 15 minutes and the plant used 32% less CIP
chemicals. The cost savings were $5,300 in the first three
Figure 2: Inline analyzers were installed on this hydro cooker to supplement
months on chemicals alone, plus savings from reduced
lab analyzers. The real-time measurement saved $13,000 annually in
disinfectant costs by eliminating overdosing.
energy and water use. The plant also increased equipment
availability for processing by more than one hour per day
Inline analyzers are nothing new, of course. Many of these measurements have been available for several years and used for
traditional process control. What’s new today is increased reliability, along with new features and capabilities:
Improved Reliability: Experiences in the industry with analyzers have been mixed. Trying to apply equipment designed for use
in the lab directly in a process usually led to disappointments. Washdown, high temperatures, aggressive cleaning chemicals
and other environmental factors often resulted in equipment failures and maintenance nightmares. These problems have been
rectified by designing analyzers and other inline instrumentation from the ground up for use on the plant floor and in the field.
2
3. Seamless Integration: Traditionally, instruments were analog devices with a single 4-20mA output. Today, the availability of
digital outputs such as EtherNet/IP™, Profibus®, Foundation™ Fieldbus and Hart® is making integration of information into
automation and information systems very easy, and also allowing multiple parameters to be obtained from a single device. For
example, a Coriolis flowmeter can provide mass flow, volume flow, multiple totalizer values, density, viscosity and temperature
measurements along with diagnostic information over one set of wires (or wireless). These digital protocols also help improve
accuracy by eliminating A/D conversions and loss in resolution of signal transmission in an analog 4-20mA signal.
Simplified Calibration: With the expansion of digital sensor technology, the lab can now take responsibility for calibration of
quality-related measurements. For example, to calibrate a pH sensor in the past, calibration equipment had to be brought into
the plant. Today, this calibration can be done in the lab in a controlled environment, and the pre-calibrated sensors can be
easily placed in operation. Endress+Hauser Memosens® and other similar technologies make this possible for pH, DO,
conductivity, turbidity, chlorine and many other parameters.
Hygienic design: One of the limiting factors for inline quality monitoring has been the lack of instruments meeting hygienic
design requirements and resistant to thermal processing and CIP chemicals. Today, most instruments meet with EHEDG or 3-A
sanitary standards and are designed for use in the food industry. An example is pH measurement, which most people associate
with glass sensors—a big problem in food processing as glass sensors can break and end up as foreign objects in the final
product. Now there are reliable non-glass pH sensors that meet food processing requirements.
Coriolis Flowmeter Provide Multiple Measurements
A single Coriolis flowmeter can measure a number of
parameters simultaneously, often eliminating the need for
multiple instruments, and their highly accurate measurement
of mass flow and density (up to 0.05% on mass flow and
0.0005g/cm3 for density) makes Coriolis ideal for many
process control applications.
Often overlooked by many instrument and process engineers
is the ability of Coriolis flowmeter s to be used for quality
control. For example, the flowmeter ’s density function can be
used to measure Brix and Plato values to ensure quality of
ingredients being used. The viscosity option provides
continuous measurement to minimize off-spec product
between lab measurements.
One food plant (Figure 3) installed a Coriolis flowmeter in a
continuous bypass line of a batter mixing tank. The batter,
consisting of flour, water and additives, is mixed until the
correct viscosity is reached, and then pumped to the
production tank for processing. The resulting savings in
ingredients and the improvement in product quality paid for
the installation in less than six months.
Figure 3: A Coriolis flowmeter (center) installed in a bypass line measures
viscosity of batter as it’s being mixed.
Instrument Diagnostics Detect Problems
Diagnostics enhance measurements by alerting operators to
abnormal process conditions or upsets. For example, entrained
air in the line can cause process problems. An operator needs
to know if external air is being drawn in through a leaking seal,
a cavitating pump or an empty balance tank, because air in the
process can affect product quality.
A Coriolis flowmeter does not operate properly with large
amounts of entrained air, so it has diagnostics to detect this
condition. In an Endress+Hauser Coriolis meter, a diagnostic
value shows that tube oscillation is in a good range, indicating
no entrained air. If air appears in the line, the diagnostic value
will change (Figure 4), setting off an alarm to the operator.
The same function can be used to improve accuracy when
starting from an empty line. The automation system can use
Figure 4: Diagnostics in a Coriolis flowmeter can determine if
entrained air is present (purple trace in the figure). This data can be
used as an operator alarm and to help during setup.
3
4. the diagnostic information in combination with a downstream control valve to automatically increase back pressure during
start up, and then gradually decrease back pressure once the air is gone from the system.
Getting Started
The first step is to evaluate all the lab measurements and determine what can be replaced or supplemented with inline
instrumentation. The goal is to help the lab focus on the final and critical food safety and quality measurements, while the
instrumentation is used for real-time operations. Considerations here include:
• How much time is being spent taking manual grab samples?
• How much time is being spent running lab analyses?
• How many workers are needed for these tasks?
• How quickly does manual sampling detect process changes?
• How much does the delay in obtaining manual results affect product costs?
The hydro cooker application discussed above is a good example of a plant that saved worker’s time by eliminating two
grab samples per hour, and then saved on disinfectant chemical costs with timelier inline analysis.
The next step is asking: Which of the inline measurements would benefit a particular process?
For example, dissolved oxygen measurements in brewing, wine and juice production minimize oxidation of the product.
Measuring the Brix of tomato paste can help control the amount of paste to be added during cutting. Viscosity
measurements can improve the product consistency of batter coating for beans, onions, meat, poultry and other products.
Inline process analyzers cannot replace all the functions of a modern lab in a food plant, as certain measurements can’t yet
be reliably made by inline analyzers and instruments. However, modern inline process analyzers and instruments can
reliably replace or supplement many of the measurements traditionally made in a lab.
Moving from offline to inline measurements cuts labor costs by eliminating manual sampling and analysis, and it adds
consistency by automating the measurement process. Inline measurement delivers results in real-time, allowing
automation systems to continually adjust process parameters to optimize quality and increase throughput.
Endress+Hauser, Inc.
2350 Endress Place
Greenwood, IN 46143
Tel: 317-535-7138
Sales: 888-ENDRESS (888-363-7377)
Service: 800-642-8737
Fax: 317-535-8498
inquiry@us.endress.com
www.us.endress.com
WPXXXXXB/24/EN/04.13
Ola Wesstrom began his career with Endress+Hauser in 1992 at the Singapore facility, serving as the Product Manager for Level and Pressure. He
currently works as the Senior Industry Manager for the Food and Beverage Industry. With a degree in Process Measurement and Automation
from Sweden’s National Pulp and Paper Institute, Ola started his professional career with a process signal conditioning manufacturer in Sweden.