Gunathilaka, D.M.N.M.; Warnasooriya, W.M.R.S.K.
(Faculty of Applied Science, 2021-09-15)
Adulteration of tea is becoming a severe issue in the Sri Lankan tea industry. Black tea is adulterated with sugar, glucose, sodium bicarbonate and ferrous sulphate to improve its colour and sand, iron fillings and leather ...