History of Extrusion Cooking and Extruders (1938-2020)
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Music Video As Black Art
IN FOCUS: Modes of Black Liquidity: Music Video as Black Art The Unruly Archives of Black Music Videos by ALESSANDRA RAENGO and LAUREN MCLEOD CRAMER, editors idway through Kahlil Joseph’s short fi lm Music Is My Mis- tress (2017), the cellist and singer Kelsey Lu turns to Ishmael Butler, a rapper and member of the hip-hop duo Shabazz Palaces, to ask a question. The dialogue is inaudible, but an intertitle appears on screen: “HER: Who is your favorite fi lm- Mmaker?” “HIM: Miles Davis.” This moment of Black audiovisual appreciation anticipates a conversation between Black popular cul- ture scholars Uri McMillan and Mark Anthony Neal that inspires the subtitle for this In Focus dossier: “Music Video as Black Art.”1 McMillan and Neal interpret the complexity of contemporary Black music video production as a “return” to its status as “art”— and specifi cally as Black art—that self-consciously uses visual and sonic citations from various realms of Black expressive culture in- cluding the visual and performing arts, fashion, design, and, obvi- ously, the rich history of Black music and Black music production. McMillan and Neal implicitly refer to an earlier, more recogniz- able moment in Black music video history, the mid-1990s and early 2000s, when Hype Williams defi ned music video aesthetics as one of the single most important innovators of the form. Although it is rarely addressed in the literature on music videos, the glare of the prolifi c fi lmmaker’s infl uence extends beyond his signature lumi- nous visual style; Williams distinguished the Black music video as a creative laboratory for a new generation of artists such as Arthur Jafa, Kahlil Joseph, Bradford Young, and Jenn Nkiru. -
Food Extrusion Processing: an Overview
FOOD EXTRUSION PROCESSING: AN OVERVIEW By Bon-Jae Gu, School of Food Science, Washington State University. Ryan J. Kowalski, School of Food Science, Washington State University. Girish M. Ganjyal, School of Food Science, Washington State University FS264E FS264E | Page 1 | extension.wsu.edu WSU EXTENSION | FOOD EXTRUSION PROCESSING: AN OVERVIEW Food Extrusion Processing: An Overview cereals, pellet products, pet foods, and pre-gelatinized flours, Summary among others (Singh et al. 2007). It is a system that encompasses multiple unit operations such as mixing, Extrusion processing is a commonly used processing kneading, cooking, forming, and cutting all into a single piece technology in the food industry with a wide number of of equipment. This results in having a relatively simple process applications. It is a processing system that utilizes a single with high efficiency and low cost compared to other screw or a set of screws to force food materials through a small processing methods (Fellows 2009). opening. While food is being forced through the extruder, foods are cooked by the high pressure, high shear, and high temperature environment created by the screws, encased in the barrel. Upon exiting, materials often puff due to the release of pressure and conversion of water into steam. The entire process is continuous and capable of happening in less than a minute. The most commonly used extruders in the food industry include single-screw and twin-screw systems, with twin-screw systems more widely used because of their flexibility. A brief overview of extrusion processing systems is provided in this publication, including applications of extrusion in the food industry, different parts of the extruder, and the concept of extrusion as a multiple input and multiple output processing system. -
Precooked Bran-Enriched Wheat Flour Using Extrusion
JFS S: Sensory and Food Quality Precooked Bran-Enriched Wheat Flour Using Extrusion: Dietary Fiber Profile and Sensory Characteristics H. GAJULA,S.ALAVI,K.ADHIKARI, AND T. HERALD ABSTRACT: The effect of precooking by extrusion processing on the dietary fiber profile of wheat flour substituted with 0%, 10%, 20%, and 30% wheat bran was evaluated. Depending on the level of bran, total dietary fiber (TDF) and soluble dietary fiber (SDF) in uncooked flours ranged from 4.2% to 17.2% and 1.5% to 2.4%, respectively. Precooking by extrusion significantly increased SDF in flours (by 22% to 73%); although in most cases it also led to a significant decrease in TDF. Cookies and tortillas produced from uncooked and precooked flours with 0% and 20% substituted bran were evaluated for consumer acceptability using a 9-point hedonic scale. With a few exceptions, all cookies had scores ranging from 6 to 7 (“like slightly” to “like moderately”) for each attribute, including overall acceptability, appearance, texture, crumbliness, and flavor. Tortillas were rated for the same attributes except for crumbliness, which was replaced with chewiness. In most cases, tortilla scores ranged from 5 to 7 (“neither like nor dislike” to “like moderately”). Consumer acceptability scores of cookies from uncooked flour did not change significantly with increase in bran substitution from 0% to 20%. However, consumer scores for tortillas did decrease significantly with increase in bran level. Extrusion precooking of the flours did not improve the consumer acceptability of cookies and tortillas; however, it did improve their dietary fiber profile by increasing the SDF significantly. -
A Million Trees Offer Hope to Save the Gorillas' Home
issue 48 summer 2017 the gorilla organization A million trees offer hope to save the gorillas’ home Letter from The Gorilla Organization has helped the Virungas villagers in the Congo to plant more than a million trees to protect gorilla habitats and prevent This year’s 50th devastating floods. anniversary of The initiative was driven by Dian Fossey’s Gorilla Organization programme arrival in Africa manager Henry Cirhuza, reminds us how who brought the World Food far we have come Programme (WFP) on board to in the fight to save continue a tree-planting project gorillas from extinction. protecting the delicate ecosystem In the 1980s there were of Kahuzi-Biega National Park. just 250 mountain gorillas in the world The WFP provided more than and it was a daily fight to protect them. 269,000 tonnes of ‘Food for Work’ Today they are rising back towards a for the project’s beneficiaries who Beneficiaries receive training from Gorilla Organization staff thousand, and we are working with then plant out the saplings to communities across central Africa reforest land at the edge of the network of streams that prevent In 2014, Léontine Muduha to halt the decline of the three other park. flooding during the rainy seasons. witnessed first-hand the unforeseen gorilla subspecies. “This should mean people Over recent years, this delicate consequences of destroying the But there is still a gorilla-sized have less reason to go into or system has come under threat, with forest. When the heavy rains came, mountain to climb! Grauer’s (eastern even destroy the forest, which is forest destroyed for subsistence the River Nyalunkumbo was unable lowland) gorilla numbers have gone excellent news for the gorillas”, farming. -
Extrusion-Cooking of Starch
Chapter 13 Extrusion-Cooking of Starch L. Moscicki, M. Mitrus, A. Wojtowicz, T. Oniszczuk and A. Rejak Additional information is available at the end of the chapter http://dx.doi.org/10.5772/52323 1. Introduction The extrusion technology, well-known in the plastic industry, has recently become widely used in food industry, where it is referred to as extrusion-cooking. It has been employed for the production of so called engineered food and special feed. Generally speaking, extrusion-cooking of vegetable raw materials consists in the extrusion of grinded material at baro-thermal conditions. With the help of shear energy, exerted by the rotating screw, and additional heating by the barrel, the food material is heated to its melting point, than is conveyed under high pressure through a series of dies and the prod‐ uct expands to its final shape. That results in much different physical and chemical proper‐ ties of the extrudates in comparison to raw materials used. Food extruders – processing machines (see fig. 1), belong to the family of HTST (High Tem‐ perature Short Time) equipment, with a capability to perform cooking tasks under high pressure. This aspect may be explained for vulnerable food and feed as an advantageous process since small time span exposures to high temperatures will restrict unwanted dena‐ turation effects on e.g. proteins, amino acids, vitamins, starches and enzymes. Physical tech‐ nological aspects like heat transfer, mass transfer, momentum transfer, residence time and residence time distribution have a strong impact on the food and feed properties during ex‐ trusion-cooking and can drastically influence the final product quality (Mościcki et al., 2009, Moscicki, 2011, Mościcki, 2011). -
Food Extrusion - Karwe M
FOOD ENGINEERING – Vol. III - Food Extrusion - Karwe M. V. FOOD EXTRUSION Karwe M. V. Cook College, Rutgers University, New Jersey, USA Keywords: Extruded products, extrusion equipment, flavor formation, Maillard browning, nutritional changes, physico-chemical changes in starch, protein, and lipids, process modeling, scale-up, single-screw extruder, twin-screw extruder Contents 1. Introduction 2. Extruded Products 2.1. Products for Human Consumption 2.2. Pet Food and Animal Feed Products 3. Extrusion Equipment 3.1. Single-Screw Extruders 3.2. Twin-Screw Extruders 3.3. Extrusion Equipment Size 4. Extrusion Variables and Process Parameters 5. Process Modeling and Scaling 5.1. Process Modeling 6. Scale-Up 7. Physico-Chemical Changes During Extrusion 7.1. Changes in Starches 7.2. Changes in Proteins 7.3. Changes in Lipids 8. Flavor Formation and Loss During Extrusion 9. Effect of Extrusion on Nutritional Quality 10. Other Applications of Extrusion Processing Acknowledgments Glossary Bibliography Biographical Sketch SummaryUNESCO – EOLSS The process of screw extrusion is used in the food and agricultural industries to make a variety of products.SAMPLE The process combines maCHAPTERSny operations as one, is flexible, can be used to make different types of products, and produces few or no effluents. This article gives an overview of the status of food extrusion research and applications. 1. Introduction Extrusion is defined as a process in which material is pushed through an orifice or a die of given shape. The pushing force is applied using a piston or a screw. In food applications, screw extrusion is predominant. ©Encyclopedia of Life Support Systems (EOLSS) FOOD ENGINEERING – Vol. -
Download File
Your Rights, Your World: The Power of Youth in the Age of the Sustainable Development Goals Prepared by: Rhianna Ilube, Natasha Anderson, Jenna Mowat, Ali Goldberg, Tiffany Odeka, Calli Obern, and Danny Tobin Kahane Program at the United Nations Disclaimer: This report was written by a seven member task force comprised of members of Occidental College at the United Nations program. For four months, participating students interned in various agency or permanent missions to the United Nations. As the authors are not official UNICEF staff members, this report in no way reflects UNICEF's views or opinions. Furthermore, this report in no way endorses the views or opinions of Occidental College. 1 TABLE OF CONTENTS: Foreword ……………………………………………………………………………………………….. p.4 Acknowledgements…………………………………………………………………………………….. p. 5 Executive Summary……………………………………………………………………………………… p. 6 Background ……………………………………………………………………………………………. Why this report is needed …………………………………………………………………… p. 6 Defining Key Concepts ……………………………………………………………………… p. 8 Methodology ……….……………………………………………………………………….. p. 9 The Case Studies …………………………………………………………………………………… High-Income: United Kingdom ………………………………………………………….. p. 11 Middle- Income: Colombia ……………………………………………………………….. p. 15 The Role of Youth to Advance Goal 13 on Climate Action for Colombia ……………… p. 16 Low-Income: Uganda ……………………………………………………………………… p. 21 Refugee Children: Education in Emergencies ……………………………………………. p. 26 Youth Voices: Fresh Ideas ………………………………………………………………………… p. 31 Building Awareness: Opportunities and -
2019 Annual Report
Can Do Canines ANNUAL GRATITUDE REPORT 2019 ® Celebrating 30 Years 1989-2019 A Letter From Can Do Canines EXECUTIVE DIRECTOR ALAN PETERS Mission Annual Gratitude Report 2019 Can Do Canines is dedicated to & BOARD CHAIR MITCH PETERSON enhancing the quality of life for 3 A Letter From the Executive Director and Board Chair people with disabilities by creating 4 At a Glance Infographic Dear Friends, mutually beneficial partnerships 5 Client Stories with specially trained dogs. We are pleased to share this report of Can Do Canines’ accomplishments 8 Graduate Teams during 2019. Throughout these pages you’ll see our mission come to life through the stories and words of our graduates. You’ll witness the many 11 The Numbers people who have helped make Can Do Canines possible. And we hope you’ll Celebrating 12 Volunteers be inspired to continue your support. Vision 30 Years We envision a future in which every 16 Contributors We celebrated our 30th anniversary during 2019! Thirty years of service 1989-2019 to the community is a significant accomplishment. An anniversary video person who needs and wants an 25 Legacy Club Alan M. Peters and special logo were created and shared at events and in publications Executive Director assistance dog can have one. 26 Donor Policy throughout the year. Our 30th Anniversary Gala was made extra special by inviting two-time Emmy award winner Louie Anderson to entertain us. And enclosed with this report is the final part of the celebration: our booklet celebrating highlights of those 30 years. Values Those Who Served on the Most importantly, we celebrated our mission through action. -
Lucy Britt Masters
MOURNING AGAIN IN AMERICA: MEMORIAL DAY, MONUMENTS, AND THE POLITICS OF REMEMBRANCE Lucy Britt A thesis submitted to the faculty at the University of North Carolina at Chapel Hill in partial fulfillment of the requirements for the degree of Master of Arts in the Department of Political Science in the Graduate School of Arts and Sciences. Chapel Hill 2017 Approved by: Susan Bickford Michael Lienesch Jeff Spinner-Halev © 2017 Lucy Britt ALL RIGHTS RESERVED ii ABSTRACT Lucy Britt: Mourning Again in America: Memorial Day, Monuments, and the Politics of Remembrance (Under the Direction of Susan Bickford) The subjects and modes of mourning undertaken in public are consequential for past and continuing injustices because they indicate what a society cares about remembering and how. Holidays and monuments, as expressions of civil religion, affect how citizens read their history by rejecting or legitimating state violence and war in the future. Counter-narratives such as those from oppressed groups often emerge to challenge dominant narratives of civil religion. Close readers of civil religious ceremonies and markers such as Memorial Day and Confederate memorials should undertake a critical examination of the symbols’ historical meanings. I propose a politics of mourning that leverages the legal doctrine of government speech to reject impartiality and construct a public sphere in which different narratives of history are acknowledged but not all are endorsed. iii TABLE OF CONTENTS LIST OF FIGURES ....................................................................................................................... -
WILDLIFE CONSERVATION in the Field
WILDLIFE CONSERVATION IN THE FIELD Saving Nature Together MISSION Woodland Park Zoo saves animals and their habitats through conservation leadership and engaging experiences, inspiring people to learn, care and act. VISION Woodland Park Zoo envisions a world where people protect animals and conserve their habitats in order to create a sustainable future. As a leading conservation zoo, we empower people, in our region and around the world, to create this future, in ways big and small. CONTENTS Why Wildlife Conservation? .............4 Partners for Wildlife ............................8 Africa ................................................... 10 Central Asia ...................................... 12 Asia Pacific ......................................... 14 Living Northwest ............................... 22 Wildlife Survival Fund ...................... 36 Call to Action ..................................... 38 FIELD CONSERVatION at • We recognize that wildlife conservation ultimately WHY WILDLIFE CONSERVatION? WOODLAND PARK ZOO is about people, and long-term solutions will for example depend upon education, global health, • We carry out animal-focused projects that engage At Woodland Park Zoo, we believe that animals and habitats have intrinsic value, and that their poverty alleviation, and sustainable living practices. the public’s interest, contribute toward species existence enriches our lives. We also realize that animals and plants are essential for human Therefore, whenever advantageous, we include conservation, and leverage landscape-level -
Conference Program July 26-29, 2021 | Pacific Daylight Time 2021 Asee Virtual Conference President’S Welcome
CONFERENCE PROGRAM JULY 26-29, 2021 | PACIFIC DAYLIGHT TIME 2021 ASEE VIRTUAL CONFERENCE PRESIDENT’S WELCOME SMALL SCREEN, SAME BOLD IDEAS It is my honor, as ASEE President, to welcome you to the 128th ASEE Annual Conference. This will be our second and, almost certainly, final virtual conference. While we know there are limits to a virtual platform, by now we’ve learned to navigate online events to make the most of our experience. Last year’s ASEE Annual Conference was a success by almost any measure, and all of us—ASEE staff, leaders, volunteers, and you, our attendees—contributed to a great meeting. We are confident that this year’s event will be even better. Whether attending in person or on a computer, one thing remains the same, and that’s the tremendous amount of great content that ASEE’s Annual Conference unfailingly delivers. From our fantastic plenary speakers, paper presentations, and technical sessions to our inspiring lineup of Distinguished Lectures and panel discussions, you will have many learning opportunities and take-aways. I hope you enjoy this week’s events and please feel free to “find” me and reach out with any questions or comments! Sincerely, SHERYL SORBY ASEE President 2020-2021 2 Schedule subject to change. Please go to https://2021asee.pathable.co/ for up-to-date information. 2021 ASEE VIRTUAL CONFERENCE TABLE OF CONTENTS 2021 ASEE VIRTUAL CONFERENCE AND EXPOSITION PROGRAM ASEE BOARD OF DIRECTORS ................................................................................4 CONFERENCE-AT-A-GLANCE ................................................................................6 -
Journalism Class Introduces Humans of Jefferson College Senator Claire
Vol. 83 Issue 1 May 5, 2017 [email protected] the harbinger The student newspaper of Jefferson College since 1964 Senator Claire McCaskill Delivers Town Hall Journalism Class Introduces Meeting at Jefferson College Humans of Jefferson College by Nathan Imlay By Adam Riordan Are you familiar with Hu- All you have to do to register On April 12, Senator Claire is to sign a release form, allow us McCaskill held a town hall meet- mans of St. Louis or Humans of New York and wish that sort to take one picture of yourself (or ing at the Fine Arts Theater of send us a selfie of your own), and Jefferson College. More than of program would come to Jef- ferson College? Well, your wish a recording of the conversation 50 people attended to have the you have with the interviewer. Senator answer their questions. has been granted. Now, at Jefferson College in Once it's all done, we can share The vast majority of the crowd your exact details to the entire was friendly towards Senator Mc- Hillsboro, Missouri, the journal- ism course has now created their world by posting it on our Face- Caskill and many of the questions book page. With Humans of Jef- related to how the Democratic op- own unique human program with the Humans of Jefferson College. ferson College, this gives you all position could delay or halt pieces an opportunity to share anything of President Trump's agenda. With this program, this gives us the chances to talk to any student, that you desire to the whole cam- The Senator began with an pus and even the world.