Page 30 - CS06_Hudz
P. 30

 Purine alkaloids (methyl xanthines):


             caffeine (previously referred to as theine

                 or teine;


            • depending upon the development stage


                 of the leaves, 2.9-4.2%, content


                 declining with age), theobromine (0.15-

                 0.2%), theophylline (0.02-0.04%).


             Volatile oil:


             chief components linalool,


             in fermented tea also 2-methyl-hept-2-


                 en-6-on, α-ionon and β-ionon, more

                 than 300 volatile compounds are                                                                            Fig. Thea
                                                                                                                            sinensis. 1 -
                 involved in tea aroma.                                                                                     Flowering
                                                                                                                            branch; 2 –
                                                                                                                            Leaf; 3 -
                                                                                                                            Flower
   25   26   27   28   29   30   31   32   33   34   35