PPT-Ketones and Aldehydes as Flavoring Agents

By Yemi Oduwole What are Flavoring Agents Flavoring agents are considered the largest compounds used as FOOD ADDITIVES Food and beverage applications of these additives are not limited to dairy fruit nut seafood spice blends vegetables and . Nucleophilic Addition to the Carbonyl Group Aldehydes replace the e of the parent alkane with al The functional group needs no number Aldehyde bonded to a ring are named using suffix carbaldehyde Benzaldehyde is common short name for benzenecarbalde Dr. Talat R. Al-Ramadhany. Introduction . Aldehydes are compounds of the general formula . RCHO. ;. Ketones are compounds of the general formula . RR´CO. . The groups R and R´ may be aliphatic or aromatic. . Aldehydes and ketones. Carbonyl Compounds. Contain the carbonyl group . C=O. . Aldehydes: . R may be hydrogen, usually a carbon containing group. Ketones: . R contains carbon. Short. forms. Structures of Aldehydes . Lecture 6. CARBONYL COMPOUNDS: . NUCLEOPHILIC ADDITION REACTION. ALDEHYDE. KETON. ESTHER. CARBOXILIC ACID. CARBONYL COMPOUNDS. CARBONYL COMPOUNDS. Formalin . Ibuprofen . Aspirin. Asam cuka. Asam semut. Chemistry of Cooking. Flavours in Food. Many of the flavours in foods are due to the presence of . volatile. molecules. . Many . flavour and aroma molecules belong to the family called . aldehydes. . Learning Objectives:. Know the general formula for alcohols.. Be able to name alcohols.. Describe the shape of alcohols.. Classify primary, secondary, and tertiary alcohols.. Describe the physical properties of alcohols.. 18-1. The pK. a. values of the . -hydrogens of aldehydes and ketones range from 16 to 21, comparable to those of alcohols (15-18).. Strong bases can remove  hydrogens leading to anions called . Before you can learn about aldehydes and ketones, you must first know something about the nomenclature of carboxylic acids since many of the names of aldehydes and ketones are derived from the names of the corresponding carboxylic acids.. 1. Chapter 16. Aldehydes & Ketones:. Nucleophilic Addition. to the Carbonyl Group. Ch. 16 - . 2. About The Authors. . These PowerPoint Lecture Slides were created and prepared by Professor William Tam and his wife, Dr. Phillis Chang. . Fourth Edition. Karen Timberlake. 14.1. Aldehydes and Ketones. Chapter 14. Aldehydes, Ketones, and Chiral Molecules. © 2013 Pearson Education, Inc.. Lectures. Aldehydes and Ketones. A . carbonyl group. 1. CHAPTER 16. Aldehydes & Ketones. General, Organic, & Biological Chemistry. Janice . Gorzynski. . Smith. CHAPTER 16 Aldehydes & Ketones. Smith, Janice Gorzynski. General, Organic, & Biological Chemistry 2nd Ed.. Do Now: Write the molecular formula for the two sugars on the right. Are they isomers?. General formula: R. . C. . H or RCHO. Carbonyl group . just like ketone except . always. . at end of aldehyde . Carbonyl Compounds. Contain the carbonyl group . C=O. . Aldehydes: . R may be hydrogen, usually a carbon containing group. Ketones: . R contains carbon. Short. forms. Structures of Aldehydes . and Ketones. Shatha. I . Alaqeel. 108 . Chem. Learning Objectives. Chapter eight . discusses. . carbonyl . compounds. and . by the end of this chapter the students will:. Know the structural differences between aldehydes and ketones.