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The systematic review search process identified 162 relevant articles published, with an English abstract, in peer-reviewed journals since 1st January 1958 until 29th February 2008. A total of 3558 comparisons of content of nutrients and other substances in organically and conventionally produced foodstuffs were extracted for analysis. Articles included in the review were assessed for study quality (satisfactory quality studies provided clear statements on material and nutrients analysed, laboratory and statistical methods and a clear definition of organic agricultural practices), and one third of all studies (n=55; 34%) met the pre-defined satisfactory quality criteria. . | Chapter 1 Notes CHEM 2353 Fundamentals of Organic Chemistry Chapter 1 Organic Compounds Alkanes Organic and Biochemistry for Today 4th ed. Spencer L. Seager Michael R. Slabaugh Mr. Kevin A. Boudreaux Angelo State University www.angelo.edu faculty kboudrea 1 Organic chemistry nowadays almost drives me mad. To me it appears like a primeval tropical forest full of the most remarkable things a dreadful endless jungle into which one does not dare enter for there seems to be no way out. Friedrich Wohler 2 Chapter 1 Notes What 4-QfflMC c hemistry 3 What Do We Mean By Organic In everyday usage the word organic can be found in several different contexts - chemicals extracted from plants and animals were originally called organic because they came from living organisms. - organic fertilizers are obtained from living organisms. - organic foods are foods grown without the use of pesticides or synthetic fertilizers. In chemistry the words organic and organic chemistry are defined a little more precisely 4 Chapter 1 Notes What is Organic Chemistry Organic chemistry is concerned with the study of the structure and properties of compounds containing carbon. - All organic compounds contain carbon atoms. - Inorganic compounds contain no carbons. Most inorganic compounds are ionic compounds. Some carbon compounds are not considered to be organic mostly for historical reasons such as CO CO2 diamond graphite and salts of carbon-containing polyatomic ions e.g. CO32- CN- . Inorganic chemistry is the study of the other elements and non-carbon containing compounds. 5 The Periodic Table There are 92 naturally occurring elements and many artificial ones in the in famous Periodic Table Lanthanides Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu Actinides Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr
