PPT-Fusel Alcohols in Fuel Ethanol Fermentation

Matt Hawkins Lallemand Biofuels amp Distilled Spirits Overview Fusel Alcohols Structures and Formation Fusels in Corn Mash Fermentation Fusels Produced in Fermentation Factors Influencing Fusel Formation. Thiols. , Phenols, . And Ethers. IUG, . Fall . 2013. Dr. . Tarek. . Zaida. 1. 1. Alcohols. Alcohols are derivatives of hydrocarbons in which 1 or more of the hydrogen atoms has been replaced by a hydroxyl (-OH) . Properties & Synthetic Preps. Hydroxyl groups in natural compounds.. Alcohols. Naturally occurring p. henols: a . hydroxyl group directly attached to an aromatic ring.. Phenols. The –OH of an alcohol. 8-4. Methanol is commercially synthesized from . synthesis gas. , a mixture of CO and H. 2. :. A change of catalyst leads to the production of 1,2-ethanediol:. Ethanol can be prepared by the fermentation of sugars or the hydration of ethene:. Linda Bisson. Department of Viticulture and Enology. UCD. Level of Inoculation. Impacts length of fermentation lag. Impacts speed of domination of fermentation. Affects aroma profile. Affects mouth feel. Alcohol . – alkyl chain attached to an –OH. . R-OH. Phenol . - aromatic attached to an –OH. Nomenclature. 1. Name the longest chain of carbons which includes the carbon with the hydroxyl group.. Thiols. , . and ethers. Nomencalture. of alcohols. Use the end . ol. Examples. . Hydrogen bonding in alcohols and phenols. Alcohols and phenols form hydrogen bonds, and hence they have relatively high boiling points. This also makes the lower alcohols miscible with water. As the R group becomes larger, the solubility of alcohols in water decreases dramatically.. [. Bio. ] . Ethanol. Ethanol.  . , . also commonly called . ethyl. . alcohol. , drinking alcohol, . or . s. imply.  . alcohol.  is the principal type . of.  . alcohol. . found in. . alcoholic. 45. -Alcohols . have the general formula R. -. OH and are characterized by the presence of a . hydroxyl group, . -. OH. . -Phenols . have a hydroxyl group attached directly to an aromatic ring. . -Thiols . TM. National Corn-to-Ethanol Research Center. Southern Illinois University. Education and Workforce Development. 400 University Park Drive. Edwardsville, Illinois 62025-3604. Office: (618) 659-6737 ext. 239. Biofuels - 2015. Brazilian technology of fuel ethanol fermentation: new perspectives to improve the technology and diversification. . Dr. Pedro de . Oliva. . Neto. Lab. Industrial . Biotechnology. . , Ethers, Aldehydes, and Ketones. Anesthesia is typically administered by a nurse anesthetist who provides care before, during, and after a medical procedure. A nurse anesthetist gives medications to keep a patient asleep and pain-free while monitoring the patient’s vital signs.. st. 1439 . Learning. . Objectives. By the end of this chapter the student will:. . know the structure of alcohol. Knew the different classes of alcohols.. Knew the nomenclature of Alcohols . Knew the physical Properties. . of grape . juice or other sugar-containing substrates . including honey. , sugarcane, fruit juices, and other plant juices . containing sugars . such as palm tree sap, floral extracts, and . . Agave. Ruminant Nutrition. Phil Myer**, Bryan Reiling*, Nathan Conner*, Taylor Ruth*, Christopher Stripling**. *University of Nebraska-Lincoln, **University . of Tennessee . Funded by a USDA-NIFA-PDAL grant, Award Number 2021-67037-34298, Program A7501..