STUDY ON THE PROCESS OF TEA BAGS CAO BANG PROVINCE

Abstract

Boehmeria nivea (L.) Gaud is an interesting herb. The leaves have been using as a type of traditional medicine which showed benefit effects such as: Diuretics, fever reducer, antioxidant, anti inflammatory, liver protection. However, researches about Boehmeria nivea (L.) Gaud  and applications still be  limited. Therefore, tea bags production from this type of herb is necessary activity. The study showed that the moisture in leaves of Boehmeria nivea is 80.69%, ash is 3.3%, the total dry mass is 19.3ºBx, polyphenol is around 13.35%. In experiments with E. coli, S. aureus, B. subtilis, tea solution created antimicrobial clear zones as 4, 7, 9 mm. Production includes many phases with specific parameters, such as: Drying temperature of leaves is 60ºC, drying time of 210 minutes, the size of material after grinding is about 0.5 < d ≤ 1 mm. Stevia and licorice are added with ratio 12% and 8% to create good sensory quality for products. The result is the beginning  for tea bag production in Cao Bang province which is useful for customers.