1. Biography Nobel Prize Winner: Virtanen, Artturi Ilmari | Chemdex Biography Nobel Prize Winner Virtanen, Artturi Ilmari. (Helsinki University, Helsinki, Finland). Awarded the Nobel prize for chemistry in 1945 for his research and inventions in http://www.chemdex.org/chemistry_link/biography_nobel_prize_winner_virtanen_artt

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2. Biographies Of Artturi Ilmari Virtanen Biographies of Virtanen Artturi Ilmari and more Virtanen Artturi Ilmari biography. http://www.biography-center.com/biographies/3535-Virtanen_Artturi_Ilmari.html

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3. Virtanen, Artturi Ilmari - Hutchinson Encyclopedia Article About Finnish chemist who was awarded the Nobel Prize for Chemistry in 1945 for his discoveries from 1920 in agricultural chemistry. Because green fodder tends to ferment and produce a http://encyclopedia.farlex.com/Virtanen, Artturi Ilmari

4. Science Fair Projects - Artturi Ilmari Virtanen The Ultimate Science Fair Projects Encyclopedia Artturi Ilmari Virtanen http://www.all-science-fair-projects.com/science_fair_projects_encyclopedia/Artt

All Science Fair Projects Science Fair Project Encyclopedia for Schools! Search Browse Forum Coach ... Dictionary Science Fair Project Encyclopedia For information on any area of science that interests you, enter a keyword (eg. scientific method, molecule, cloud, carbohydrate etc.). Or else, you can start by choosing any of the categories below. Science Fair Project Encyclopedia Contents Page Categories 1895 births 1973 deaths ... Nobel Prize in Chemistry winners Artturi Ilmari Virtanen Artturi Ilmari Virtanen January 15 November 11 ) was a Finnish Nobel laureate in chemistry Virtanen was born in Helsinki Finland . He studied the Classical Lyceum at Viipuri , Finland. After he finished school, he studied chemistry, biology, and physics. In 1939 he became Professor of Biochemistry at the Finland Institute of Technology at Helsinki and at the University of Helsinki in 1939. His research included partially synthetic cattle feeds, nitrogen-fixing bacteria in the root nodules and improved methods of butter preservation. In 1945 Virtanen became Nobel Prize Laureate in Chemistry, for his research in agricultural and nutrition chemistry, especially for his fodder preservation method (AIV Fodder). The method – which he had published 1943 - improved the storage of green fodder that is important during long winters. Process includes adding dilute hydrochloric or sulfuric acid to newly stored grain. Increased acidity stops harmful fermentation and has no adverse effect on the nutritive value of the fodder or animals that eat it.

5. Artturi Virtanen - Biography Nobelprize.org, The Official Web Site of the Nobel Prize http://nobelprize.org/nobel_prizes/chemistry/laureates/1945/virtanen-bio.html

Home FAQ Press Contact Us ... Nobel Prize in Chemistry Artturi Virtanen - Biography About the Nobel Prizes Facts and Lists Nobel Prize in Physics Nobel Prize in Chemistry ... Nobel Prize Award Ceremonies Sort and list Nobel Prizes and Nobel Laureates Create a List All Nobel Prizes Nobel Prize Awarded Organizations Women Nobel Laureates Nobel Laureates and Universities Prize category: Physics Chemistry Medicine Literature Peace Economics The Nobel Prize in Chemistry 1945 Artturi Virtanen The Nobel Prize in Chemistry 1945 Summary Presentation Speech Artturi Virtanen ... Documentary Biography Artturi Ilmari Virtanen was born in Helsinki on the 15th of January, 1895, as the son of Kaarlo Virtanen and Serafiina Isotalo. He was educated at the Classical Lyceum at Viipuri, Finland. After finishing school, he studied chemistry, biology, and physics at the University of Helsinki, where he took his M.Sc. in 1916 and obtained his D.Sc. in 1919. Subsequently he studied physical chemistry in Zurich in 1920 under G. Wiegner, bacteriology in Stockholm in 1921 under Chr. Barthel, and enzymology in Stockholm during 1923-1924 under H. von Euler

6. Artturi Ilmari Virtanen: Facts, Discussion Forum, And Encyclopedia Article Finland , officially the Republic of Finland, is a Nordic country situated in the Fennoscandian region of Northern Europe http://www.absoluteastronomy.com/topics/Artturi_Ilmari_Virtanen

Home Discussion Topics Dictionary ... Login Artturi Ilmari Virtanen Artturi Ilmari Virtanen Topic Home Discussion Discussion Ask a question about ' Artturi Ilmari Virtanen Start a new discussion about ' Artturi Ilmari Virtanen Answer questions from other users Full Discussion Forum Encyclopedia Artturi Ilmari Virtanen Finnish Finland Finland , officially the Republic of Finland, is a Nordic country situated in the Fennoscandian region of Northern Europe... chemist and recipient of the 1945 Nobel Prize in Chemistry Nobel Prize in Chemistry The Nobel Prize in Chemistry is awarded annually by the Royal Swedish Academy of Sciences to scientists in the various fields of chemistry. It is one of the five Nobel Prizes established by the will of Alfred Nobel in 1895, awarded for outstanding contributions in chemistry, physics, literature,... Early life Virtanen was born in Helsinki Helsinki Helsinki is the capital and largest city in Finland. It is in the southern part of Finland, on the shore of the Gulf of Finland, by the Baltic Sea. The population of the city of Helsinki is , making it the most populous municipality in Finland by a wide margin. Helsinki is located some east of... Finland Finland Finland , officially the Republic of Finland, is a Nordic country situated in the Fennoscandian region of Northern Europe...

7. Virtanen, Artturi Ilmari | Definition Of Virtanen, Artturi Ilmari | HighBeam.com Find out what Virtanen, Artturi Ilmari means A Dictionary of Scientists has the definition of Virtanen, Artturi Ilmari. Research related newspaper, magazine, and journal articles http://www.highbeam.com/doc/1O84-VirtanenArtturiIlmari.html

8. Virtu - Definition Of Virtu By The Free Online Dictionary, Thesaurus And Encyclo Virtanen, Artturi Ilmari Virtanen, Jalmari Virtanen, Jalmari Erikovich Virtex Virtex4 Virtex-5 Virtex4 Virtigo Virtigo Virtigo VIRTIS Virton Virtools Player File http://www.thefreedictionary.com/virtu

9. Virtanen, Artturi Ilmari Virtanen, Artturi Ilmari (b. Jan. 15, 1895, Helsinkid. Nov. 11, 1973, Helsinki), Finnish biochemist whose investigations directed toward improving the production and storage of http://www.uv.es/EBRIT/micro/micro_624_86.html

Britannica CD Index Articles Dictionary Help Virtanen, Artturi Ilmari (b. Jan. 15, 1895, Helsinkid. Nov. 11, 1973, Helsinki), Finnish biochemist whose investigations directed toward improving the production and storage of protein-rich green fodder, vitally important to regions characterized by long, severe winters, brought him the Nobel Prize for Chemistry in 1945. As a chemistry instructor at the University of Helsinki (1924-39), where he became professor of biochemistry (1939-48), Virtanen studied the fermentation processes that spoil stores of silage . Knowing that the fermentation product, lactic acid, increases the acidity of the silage to a point at which destructive fermentation ceases, he developed a procedure (known by his initials, AIV) for adding dilute hydrochloric or sulfuric acid to newly stored silage, thereby increasing the acidity of the fodder beyond that point. In a series of experiments (1928-29), he showed that acid treatment has no adverse effect on the nutritive value and edibility of the fodder and of products derived from animals fed the fodder. A professor of biochemistry at the Helsinki University of Technology (1931-39), and director of Finland's Biochemical Research Institute, Helsinki, from 1931, Virtanen also conducted valuable research on the nitrogen-fixing bacteria found in the root nodules of leguminous plants, on improved methods of butter preservation, and on economical, partially synthetic cattle feeds. His

10. Artturi Ilmari Virtanen - Biography Of Artturi Ilmari Virtanen Artturi Ilmari Virtanen was a Finnish biochemist and Nobel laureate. http://chemistry.about.com/od/famouschemists/p/artturi-ilmari-virtanen-bio.htm

zWASL=1;zGRH=1 zGCID=this.zGCID?zGCID+" test11":" test11" zJs=10 zJs=11 zJs=12 zJs=13 zc(5,'jsc',zJs,9999999,'') zDO=0 Home Education Chemistry Chemistry Search Chemistry Chem 101 Science Projects Science Fair ... Share w(x2+zWl+'?p=1" zT="18/1[N" rel="nofollow">Print') Free Chemistry Newsletter! Sign Up Discuss in my Forum From Todd Helmenstine See More About: virtanen famous chemists famous scientists biographies zSB(3,3) Artturi Ilmari Virtanen: Artturi Ilmari Virtanen was a Finnish biochemist and Nobel laureate. Birth: January 15, 1895 in Helsinki, Finland Death: November 11 , 1973 in Helsinki, Finland Claim to Fame: Virtanen was a Finnish biochemist who was awarded the 1945 Nobel Prize for his work and inventions in agricultural and nutrition chemistry. He developed a method to preserve grain silage by increasing the acidity of stored grains. The AIV (named after his initials) fodder technique is an additive that is sprayed on stored grains to raise the acidity of the grain to stop the fermentation that spoils the grain while in storage without destroying the nutritive value. Related Articles November 11 Science History - Science History for November 11 January 15 Science History - Science History for January 15 The Five Nutrition Mistakes Nearly Every Tween Makes Gluten Free Diet - Gluten-Free Grains for a Celiac Disease Diet ... Nutrition Basics - All of the Nutrition Basics You Need to Know Guide since 2001 Anne Marie Helmenstine, Ph.D.

11. Artturi Ilmari Virtanen Winner Of The 1945 Nobel Prize In Chemistry Nobel Virtanen Artturi Ilmari (submitted by Davis) Awards won by Artturi Ilmari Virtanen (submitted by Jackson) Artturi Virtanen Biography (submitted by Tina) http://www.almaz.com/nobel/chemistry/1945a.html

A RTTURI I LMARI V IRTANEN 1945 Nobel Laureate in Chemistry for his research and inventions in agricultural and nutrition chemistry, especially for his fodder preservation method. Background Residence: Finland Affiliation: Helsinki University Featured Internet Links Search WWW Search The Nobel Prize Internet Archive Links added by Nobel Internet Archive visitors Artturi Ilmari Virtanen Biography (submitted by Toni Saarelainen AIV institute (submitted by Toni Saarelainen Artturi Ilmari Virtanen – Nobel Lecture (submitted by Chinnappan Baskar The A.I.Virtanen Institute (submitted by Thomas Nobel: Virtanen Artturi Ilmari (submitted by Davis) Awards won by Artturi Ilmari Virtanen (submitted by Jackson) Artturi Virtanen Biography (submitted by Tina) Atturi Ilmari Virtanen Biography from Encyclopedia Britannica (submitted by www.britannica.com) Back to The Nobel Prize Internet Archive Literature Peace Chemistry ... Medicine We always welcome your feedback and comments

12. HowStuffWorks "Artturi Ilmari Virtanen" Virtanen, Artturi Ilmari (18951973) was a Finnish biochemist whose study of plant decay led to the discovery of a method of preserving cattle feed. http://science.howstuffworks.com/dictionary/famous-scientists/chemists/artturi-i

HSW.sm.loadPageInfo(527675); OAS_AD('TopBanner'); HowStuffWorks Search HowStuffWorks and the web Video Podcasts Blogs Quizzes Games RSS Adventure Animals Auto Culture ... Chemists Artturi Ilmari Virtanen Print Cite Feedback E-mail This ... Recommend Cite This! Close Please copy/paste the following text to properly cite this HowStuffWorks article: Virtanen, Artturi Ilmari (1895-1973) was a Finnish biochemist whose study of plant decay led to the discovery of a method of preserving cattle feed. Virtanen also discovered many nutritionally important components of plants. He was awarded the 1945 Nobel Prize in chemistry for his work. Virtanen was born in Helsinki, Finland, in 1895. He studied biology, chemistry, and physics at the University of Helsinki, where he received a master's degree in 1916 and a doctorate (D.Sc.) in 1919. He did postgraduate work in physical chemistry in Zurich, Switzerland, in 1920. He studied bacteriology in Stockholm, Sweden, in 1921 and enzymology in 1923. From 1921 to 1931, he served as laboratory director of the Finnish Cooperative Dairies Association in Valio. In 1931, he was appointed director of the Biochemical Research Institute in Helsinki and also became a professor of biochemistry at the Finland Institute of Technology. In 1939, he was appointed professor of biochemistry at the University of Helsinki. Virtanen's early research on the fermentation of some biologically important acids showed that enzymes were necessary for bacterial fermentation. Virtanen investigated the relation between the protein content and the enzymatic activity of cells. He discovered that after fodder was cut and stored, bacterial decay caused the loss of up to one-half of its nutrients. He found that a solution of dilute hydrochloric and sulfuric acids, sprayed on the fodder, slowed decay and preserved nutrients without harming test cattle or their milk. His AIV method was first used in Finland in 1929, and the improved feed resulted in better-quality milk production year-round.

13. AccessScience | Biography | Virtanen, Artturi Ilmari The content above is only an excerpt. Please log in for full access. http://www.accessscience.com/content.aspx?id=M0026336

14. Online Encyclopedia And Dictionary - Artturi Ilmari Virtanen Artturi Ilmari Virtanen (January 15, 1895 November 11, 1973) was a Finnish Nobel laureate in chemistry. Virtanen was born in Helsinki, Finland. http://www.fact-archive.com/encyclopedia/Artturi_Ilmari_Virtanen

Search The Online Encyclopedia and Dictionary Encyclopedia Dictionary Quotes Categories ... Nobel Prize in Chemistry winners Artturi Ilmari Virtanen Artturi Ilmari Virtanen January 15 November 11 ) was a Finnish Nobel laureate in chemistry Virtanen was born in Helsinki Finland . He studied the Classical Lyceum at Viipuri , Finland. After he finished school, he studied chemistry, biology, and physics. In 1939 he became Professor of Biochemistry at the Finland Institute of Technology at Helsinki and at the University of Helsinki in 1939. His research included partially synthetic cattle feeds, nitrogen-fixing bacteria in the root nodules and improved methods of butter preservation. In 1945 Virtanen became Nobel Prize Laureate in Chemistry, for his research in agricultural and nutrition chemistry, especially for his fodder preservation method (AIV Fodder). The method – which he had published 1943 - improved the storage of green fodder that is important during long winters. Process includes adding dilute hydrochloric or sulfuric acid to newly stored grain. Increased acidity stops harmful fermentation and has no adverse effect on the nutritive value of the fodder or animals that eat it. Categories 1895 births 1973 deaths Finnish scientists ... Nobel Prize in Chemistry winners The contents of this article are licensed from Wikipedia.org

15. Artturi Ilmari Virtanen - Significado De Artturi Ilmari Virtanen Diccionario Virtanen, Artturi Ilmari . Encyclopedia of Life Sciences. doi 10.1038/npg.els.0002936. Jorma K. Miettinen (1975). Artturi Ilmari Virtanen . Plant and Soil 43 (13) 229–234. http://es.thefreedictionary.com/Artturi Ilmari Virtanen

16. Virtanen, Artturi Ilmari Virtanen was educated at the university in his native city of Helsinki, where he obtained his PhD in 1919, and at the universities of Zurich and Stockholm. http://www.cartage.org.lb/en/themes/Biographies/MainBiographies/V/Virtanen/1.htm

Virtanen, Artturi Ilmari Virtanen was educated at the university in his native city of Helsinki, where he obtained his PhD in 1919, and at the universities of Zurich and Stockholm. He worked from 1921 to 1931 as director of the Finnish Cooperative Dairies Association Laboratory and from 1924 at the University of Helsinki where, in 1931, he became director of the Biochemical Institute. In 1945 Virtanen was awarded the Nobel Prize for chemistry for his method of fodder preservation. This AIV method, as it became known, named for his initials, was designed to stop the loss of nitrogenous material in storage. By storing green fodder in an acid medium he hoped to prevent spoilage and still retain nutritious fodder. After much experimentation he finally found that a mixture of hydrochloric and sulfuric acid was adequate as long as its strength was kept within certain precise limits. Specifically, this demanded a pH of about four. In 1929 Virtanen found that cows fed on silage produced by his method gave milk indistinguishable in taste from that of cows fed on normal fodder. Further, it was just as rich in both vitamin A and C.

17. Propaedia Related articles Dry Ice; food preservation; protein concentrate; rancidity; tinfoil; Virtanen, Artturi Ilmari http://www.uv.es/EBRIT/pro/pro_070301_G000000000.html

Britannica CD Index Articles Dictionary Help Propaedia Technology Major Fields of Technology ... Agriculture and Food Production Food preservation Methods of preservation Food storage and packaging Related articles: Dry Ice food preservation protein concentrate rancidity ... Virtanen, Artturi Ilmari

18. METABOLIC PATHWAYS OF GLYCEROL DISSIMILATION A Virtanen Artturi Ilmari, Nordlund Manne. An improved method for the preparation of dihydroxyacetone. Biochem J. 1933; 27 (2)442–444. PMC free article Virtanen AI, Nordlund M. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC317442/

window.name="mainwindow"; initRedirectClicks('/pmc/extredirect/') Journal List J Bacteriol v.66(5); Nov 1953 Formats: Summary Page Browse PDF (1.2M) J Bacteriol. 1953 November; PMCID: METABOLIC PATHWAYS OF GLYCEROL DISSIMILATION A Comparative Study of Two Strains of Aerobacter aerogenes Boris Magasanik, Marcus S. Brooke, and Doris Karibian a Department of Bacteriology and Immunology, Harvard Medical School, Boston, Massachusetts This work has been supported by the William F. Milton Fund, by the Eugene Higgins trust, and by a grant from the United States Public Health Service. A preliminary report was presented before the Society of American Bacteriologists, Boston, May, 1952. This article has been cited by other articles in PMC. Full text Full text is available as a scanned copy of the original print version. Get a printable copy (PDF file) of the complete article (1.2M), or click on a page image below to browse page by page. Links to PubMed are also available for Selected References Selected References These references are in PubMed. This may not be the complete list of references from this article. BROOKE MS. Biochemical investigations on certain urinary strains of enterobacteriaceae: (1) B. cloacae, (2) "Providence".

19. Artturi Ilmari Virtanen (Finnish Biochemist) -- Britannica Online Encyclopedia Artturi Ilmari Virtanen (Finnish biochemist), Jan. 15, 1895Helsinki, Russian Finland Nov. 11, 1973Helsinki, Fin.Finnish biochemist whose investigations directed toward improving http://www.britannica.com/EBchecked/topic/630159/Artturi-Ilmari-Virtanen

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20. The Nobel Prize In Chemistry 1945 Nobelprize.org, The Official Web Site of the Nobel Prize http://nobelprize.org/nobel_prizes/chemistry/laureates/1945/

Home FAQ Press Contact Us ... Nobel Prize in Chemistry The Nobel Prize in Chemistry 1945 About the Nobel Prizes Facts and Lists Nobel Prize in Physics Nobel Prize in Chemistry ... Nobel Prize Award Ceremonies Sort and list Nobel Prizes and Nobel Laureates Create a List All Nobel Prizes Nobel Prize Awarded Organizations Women Nobel Laureates Nobel Laureates and Universities Prize category: Physics Chemistry Medicine Literature Peace Economics The Nobel Prize in Chemistry 1945 Artturi Virtanen The Nobel Prize in Chemistry 1945 Summary Presentation Speech Artturi Virtanen ... Documentary Artturi Ilmari Virtanen The Nobel Prize in Chemistry 1945 was awarded to Artturi Virtanen "for his research and inventions in agricultural and nutrition chemistry, especially for his fodder preservation method" TO CITE THIS PAGE: MLA style: "The Nobel Prize in Chemistry 1945". Nobelprize.org. 1 Nov 2010 http://nobelprize.org/nobel_prizes/chemistry/laureates/1945/ About Nobelprize.org Technical Support Home FAQ ... Contact Us

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