We will discuss in the second module there's new thank you mom thank you so very much for giving us this productive session on terpenoids and difference we will be meeting again at tomorrow and would be discussing more till then take care goodbye and guess do write to us at info dot CC at an icy Dalton if you have any query or feedback thank you, mom, thank you once again in this lecture Buy Terpenes we are going to discuss the basic terminologies involves intervenes and terpenoids we will see the definitions examples various structures and classification of terpenoids we will also see how this isoprene rule is useful in understanding the complexity of structure software pins and terpenoids terpenes and terpenoids are the natural products and these natural products are mainly synthesized from the plants this terpenes and terpenoids are made up of the isoprene unit, in other words, this isoprene molecule is found to be a repeating unit in the structure softer piece and terpenoids. When these compounds contain carbon and hydrogen it is called a Turkey's it contains carbon hydrogen and oxygen then it is called as that unites, in other words, the oxygen it forms of the Tirpitz is called as terpenoids in the literature more than 23,000 terpenes are known we find various applications of terpenes in our everyday life let us see some of the examples the first example is of my recent molecule my Racine is an acyclic molecule containing 3 double bonds in n content state number of carbon atoms it is a major constituent of belief I believe here and belief is used as a spice for making Indian curries second example is of Alpha philandering alpha villain rain is a mono-cyclic compound containing two double bonds it's a puma and under the time it is a constituent of equipped as oil and equipped as i is having some medicine importance this is a structure of gear on yours. Which is present in rose oil alpha menthol is present menthol is present in the leaves of papermate alpha terminal is present in the states of cardamom these three examples contain oxygen in the form of alcohol functional robits of primary alcohols a secondary code etcetera local and since it contains carbon hydrogen and oxygen they will be called as terpenoids let us take few more examples of terpenoids this is a molecule of carbon it is a alpha beta it is an alpha beta unsaturated ketone it is present in caraway seeds and caraway seeds is a main constituent of spices this is a structure of Jenga billion molecule and Jenga brain contains 15 number of carbon atoms there are three double bond is a woman Willard I'm and this Jenga barium is a main constituents in ginger the presence male of lemon is due to presence of bitter pin Corliss signal signal is an alpha beta and such a lead and hear it again contains ten number of carbon atoms these are the structures of alpha-pinene and the pita pine in both of them are by cyclic structure and this alpha pnina and beta Pilon is having some historical importance in the asian days from african jungle people they are extracting from presence of pine trees and the distillation of this reasons of pine tree leads to a chemical or less turpentine and turpentine contains alpha piney and the beta pine and has major constituents so because of the turpentine oil.