John, Fredrick A study of variation of concentration of naringenin chalcone in tomato peels and its correlation to the shelf life of tomato fruits - Dar es Salaam. : University of Dar es Salaam. 2020. - xiii,70p. : ill. ; 30cm. Includes bibliographical references Subjects--Topical Terms: FlavonoidsTomatoes Fruits LC Class. No.: THS EAF QK898.F5J646