title: Priority PAHs in orthodox black tea during manufacturing process.
abstract: Orthodox black tea is obtained from fresh leaves followed by withering, rolling, fermentation and drying. The presence of 16 priority polycyclic aromatic hydrocarbons (PAHs) was studied in fresh leaves and at various stages of manufacturing. Benzo(a)pyrene (2A: probable human carcinogen) was found in dried tea leaves only whereas, naphthalene (2B: probable human carcinogen) was present during all the stages of manufacturing. Dry tea leaves showed higher content of total 16 PAHs (∑PAHs) about 3 and 211 times than present in withered and dried leaves, respectively. Chrysene, benzo[g,h,i]perylene, indendo[1,2,3-c,d]pyrene, dibenzo[a,h]pyrene and benzo[a]antracene were not found during manufacturing stages of tea.
authors.affiliation: School of Chemistry and Biochemistry, Thapar University Patiala, 147004, Punjab, India.
authors.forename: Inderpreet Singh
authors.initials: IS
authors.lastname: Grover
authors.forename: Satnam
authors.initials: S
authors.lastname: Singh
authors.forename: Bonamali
authors.initials: B
authors.lastname: Pal
mesh_terms: D004785:Environmental Pollutants / Q000032:analysis*; D005506:Food Contamination / Q000706:statistics & numerical data*; D005511:Food Handling; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis*; D013662:Tea / Q000737:chemistry*
chemical_list: D004785:Environmental Pollutants; D011084:Polycyclic Aromatic Hydrocarbons; D013662:Tea