September 17, 2020

Extrusion systems for aqua feed and pet food: Single- or twin-screw?

by Diego Clivio, Clivio Solutions, Argentina

The extrusion process is a thermo-mechanical process that consists of forcing a product to pass through one or more holes of a specific size under pressure and temperature thanks to the Archimedes screw concept (also known as "endless screw").


The extrusion processes in the processing of extruded pet food and aquaculture aim to cook a mixture of raw materials and ingredients, giving it the form of croquette (pellet/kibble) that facilitates its subsequent handling.
 
The most important processes that take place inside an extruder is the gelatinisation of starches and texturisation of proteins. Both processes help aid in greater digestibility, as well as to form a structure and texture that hosts other ingredients, minerals and fats in a stable and uniform way.

For a good gelatinisation of starches and texturisation of proteins, moisture is needed (which is added in the form of liquid water and steam in pre-conditioning and/or extrusion). Suitable temperatures are also needed, which can be provided through the addition of steam, as well as being produced by the mechanical work and friction produced by the screws. Mechanical energy is also needed, granted by the shearing action of the screws.

Today, there are two technological forms of extrusion, single-screw (SSE) and twin-screw (TSE). In this article we will talk about the features, advantages and disadvantages of each of these technologies.

Single-screw extruders

In single-screw extruders we observe as a characteristic that the screw moves the materials through the channel by developing a “drag flow”, the speed of which is directly proportional to the speed of the screw. Due to the constraint of the die in the discharge of the extruder, there is a "backpressure flow”, which goes in the opposite direction to the drag flow. Therefore, the flowrate in single-screw extruders is equivalent to the drag flow rate minus the backpressure flow rate.

The flow dynamics in the screw channel shows us that the fluid particles travel at different speeds and that they do not interact in their entirety, resulting in a dispersion of dwell times and an uneven mixture.


Read more HERE.
 

The Global Miller
This blog is maintained by The Global Miller staff and is supported by the magazine Milling and Grain
which is published by Perendale Publishers Limited.


For additional daily news from milling around the world: global-milling.com

Nutreco announces Feed and Food Tech Challenge 2020 finalists

Nutreco has announced the top three finalists for its Feed and Food Tech Challenge 2020 (NFTC2020). The challenge acknowledges the best breakthrough innovations within livestock farming, aquaculture and NFTC2020's new category, alternative food proteins. This week 15 startups pitched their breakthrough innovations during a three-day virtual event to a jury and Nutreco audience in their respective category.

Nutreco's Director of Venturing and NFTC2020 head juror Joost Matthijssen commented, 'This week, we were introduced to breakthrough innovations from 15 startups, selected from over 110 submissions. The ideas were diverse, yet all placed a large focus on finding novel and sustainable ways to address key industry challenges. The jury was very impressed by these breakthrough innovations and the teams that developed them. And although it was difficult, we were able to select one ground breaking idea per category.'
 


NFTC2020 Aquaculture finalist
Finland-based biotech startup, eniferBio, has been crowned the winner of the aquaculture category for NFTC2020. eniferBio's idea to reinvent the Pekilo process to use it to provide a sustainable new feed ingredient to the aquaculture industry impressed the jury.

NFTC2020 Livestock finalist
In the livestock category for the NFTC2020, the jury was wowed by the data management and analytics platform showcased byIsraeli startup, Poultrix. The platform aims to make livestock production more efficient, sustainable and responsible through remote and real-time monitoring for immediate control.

NFTC2020 Alternative Proteins finalist
The jury chose Colorado-based pet food company Bond Pet Foods to be the winner of the new NFTC2020 category alternative proteins. This startup produces high-quality cultured animal proteins through fermentation and harvests them to better meet the nutritional requirements of companion animals.

The top three start-ups now have five days to work with their mentors and prepare for the final stage of the competition. On September 22, eniferBio, Poultrix and Bond Pet Foods will each give a one-hour PhD-defense-style presentation and Q&A, after which the NFTC2020 winner will be chosen. The NFTC2020 winner will receive the opportunity to carry out a validation trial with Nutreco.

For more information visit the Nutreco website, HERE.
 

The Global Miller
This blog is maintained by The Global Miller staff and is supported by the magazine Milling and Grain
which is published by Perendale Publishers Limited.


For additional daily news from milling around the world: global-milling.com

Değirmen Makina company profile





Makineleri Sanayi ve Ticaret Kollektif Şirketi was founded in 1961, having renamed itself as Değirmen Makina Sanayi ve Ticaret Limited Şirketi in 2006, the company gathered its subsidiary industrial companies under the same roof to increase its production capacity. 

It has since become an integrated facility, and has moved its production activities to its new premises built at Gaziantep 4th Organised Industrial Zone on a total area of 34,000m2 including 14,000m2 of indoor area.

The foundation of ASG Group was laid by Mehmet Enver ATASEVEN in 1953. Değirmen Makina, the powerhouse of ASG Group, is a leading company of Turkey engaged in machinery production, planning, projects and diagrams. Değirmen Makina carries out the engineering and manufacture of necessary installations and equipment to provide products and services through companies under its roof. 

Today, ASG Group companies are operating in more than 10 sectors. Değirmen Makina has been the solution partner of several firms engaged in food production, including notably, flour, semolina, pulses, cereals, sesame and coffee, both globally and in Turkey.

The Değirmen Makina produces and offers low-cost, high quality food machines in compliance with the European norms, environmental and human health laws.

Visit the Değirmen Makina website, HERE.
 

The Global Miller
This blog is maintained by The Global Miller staff and is supported by the magazine Milling and Grain 
which is published by Perendale Publishers Limited.


For additional daily news from milling around the world: global-milling.com

September 16, 2020

Current status of rice consumption in China and outlook of rice cooking industry

by Motonobu Kawano, PhD, Deputy Representative, China Operations, Technical Division, Satake Corporation

Changing needs for rice consumption

In 2019, China produced 210 million tonnes of paddy (accounting for 28.9% of global production) and consumed 194 million tonnes (81.6% of which is for staple food). For about a thousand years, China has been eating rice as a staple food, and today, about two-thirds of the entire population (1.4 billion) are eating rice as staple food. As the standard of living improves in line with social and economic development, the need for rice consumption has shifted from an emphasis on quantity to taste, convenience, and health benefits. Particularly in urban areas, traditional home-cooked rice and home-made lunchbox practices have been gradually decreasing. Instead, the use of ready-made rice dishes or lunch at workplace are increasing.
 


Current status and challenges of the rice-cooking industry

From the end of the 1990s to the beginning of the 21st century, the Chinese rice cooking industry entered a period of growth along with the rapid increase of the fast food and school lunch industries. In recent years, factory-cooked rice usage spread to various industries and even a production line for an astonishing 100,000 meals a day has been built. Commercial factory-cooked rice is now used in company cafeterias, lunches at hospitals and schools, catering services, bento boxes at convenience stores, and Chinese fast food dishes. The economic scale of the factory-cooked rice is said to reach approximately 300 million yuan a year.


Read more HERE.
 

The Global Miller
This blog is maintained by The Global Miller staff and is supported by the magazine Milling and Grain
which is published by Perendale Publishers Limited.


For additional daily news from milling around the world: global-milling.com

Lambton Conveyor company profile



Family owned since 1965, 
Lambton Conveyor Limited is a multinational manufacturer of grain, storage, material handling, drying and feed equipment. They provide an ever-expanding line of innovative and practical products. 

Products include: bucket elevators, chain conveyors, tube conveyors, screw conveyors, flow system accessories, grain bins, bin unloads, bin dryers, gravity screen cleaners, pellet mills, hammer mills, mixers, coolers, crumblers and custom fabrications. 

Almost all of the equipment produced by Lambton Conveyor is fabricated using galvanised steel. The galvanised coating ensures a long service life and a low maintenance finish. 

Most products are also available in stainless steel and painted mild steel upon request or depending on the application.

Lambton equipment can be seen around the world in varying environments and applications. 

The modular design of our equipment provides our customers with flexibility and assembly efficiencies. 

From the local farmer to the commercial processor they have a reputation for providing high quality and cost effective equipment.
 

Visit the website HERE.

The Global Miller
This blog is maintained by The Global Miller staff and is supported by the magazine Milling and Grain 
which is published by Perendale Publishers Limited.


For additional daily news from milling around the world: global-milling.com

September 15, 2020

Scales: The heart of the next generation mill

by Bühler, Switzerland

A family-owned mill in eastern Germany thrives on its expertise and passion for milling as well as state-of-the-art technology. The introduction of Bühler’s Tubex Pro marks an important step towards the mill of the future.


In the eastern-most region of Thuringia, in Germany, the town of Wünschendorf marks the furthest reach of the ice shield that once covered the region nearly 500,000 years ago. It is an old country and the 1000-year-old St. Veits church stands testimony to its rich heritage. Here on the confluence of the rivers White Elster and Weida, waterpower has provided the driving force for mills for centuries.
 

To this day, the Otto Crienitz mill puts the water flow to good use for its own energy requirements and even feeds electricity into the national power grid. The family-owned and managed mill is deeply rooted in the region’s history.

Built in 1900, the mill has undergone many changes. Technical innovation has altered production processes in 25-year cycles. During the formation of the German Democratic Republic (GDR), the family was dispossessed but regained control over the mill after the fall of the Berlin Wall.

Since then they have developed the business and successfully adapted to new market requirements, focusing increasingly on deploying innovative technology to achieve the highest standards in quality, productivity, hygiene, and environmentally friendly production processes. The business has grown fast and extended its customer base, two thirds of which are larger industrial customers and one third smaller artisan bakeries.

Scales make the difference

Quality, price and automation are the main ingredients for a successful milling operation. Managing the flow of produce accurately plays an important part in operating the mill efficiently, maintaining high quality standards and reducing cost.

Detecting changes, understanding yields, and identifying and rectifying problems quickly is essential.

“This is where precise and reliable weighing comes in,” says Scharf. “Improving the accuracy of our scales is one of the main levers we have in the mill to increase profitability.”

The Scharf family has always embraced technology. The introduction of Bühler’s Tubex Pro scales marks an important step towards the digitisation of production processes. The data provided by the system is extremely accurate, allowing for precise control over the production process and optimised profitability.


Read more HERE.
 

The Global Miller
This blog is maintained by The Global Miller staff and is supported by the magazine Milling and Grain
which is published by Perendale Publishers Limited.


For additional daily news from milling around the world: global-milling.com

AFIA launches new digital dialogues series

The American Feed Industry Association (AFIA) is bringing a new, online program to the animal food industry, offering industry leaders the opportunity to learn about current market fluctuations taking place and their impact on future business. The new AFIA Digital Dialogues will specifically focus on the current issues affecting the liquid supplement, feed, ingredient and equipment manufacturing sectors.
 


'If your animal food business is affected by changing weather patterns or volatile markets, then the American Feed Industry Association's new webinar series will be very helpful to you,' said Veronica Rovelli, AFIA's senior director of meetings and events. 'Given ongoing company travel restrictions due to the coronavirus pandemic, the AFIA continues to look for ways to make educational content accessible for our members so they can stay competitive in an ever-changing world.'

The three-part webinar series will take place October 13-15 for one hour each day, starting at 3 p.m. ET. The webinar series agenda includes:
• A weather outlook by Art Douglas, Ph.D., of Creighton University
• A global market outlook by Don Close of Rabo AgriFinance
• A cattle outlook by Randy Blach of CattleFax

Individuals are encouraged to register by Tuesday, September 29th, to receive the discounted early-bird rate of $90 for AFIA members and $180 for non-members.

For more information visit the AFIA website, HERE.
 

The Global Miller
This blog is maintained by The Global Miller staff and is supported by the magazine Milling and Grain
which is published by Perendale Publishers Limited.


For additional daily news from milling around the world: global-milling.com



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