Proximate analysis of green tea (Camellia sinensis) leaf powder

Abstract

Green tea (Camellia sinensis) is a prosperous source of polyphenols, especially catechins. Green tea extract has antioxidant, antibacterial, antiviral, anticarcinogenic, and antimutagenic effects. The green tea leaves were collected from Kodala Tea Estate, Rangunia Upazilla, Chattogram. Then, the sample was dried, ground, stored in small zipper bags, and analyzed. Chemical analyses of the samples were carried out for moisture, dry matter (DM), crude protein (CP), crude fiber (CF), ether extract (EE) and total ash (TA), and nitrogen-free extract (NFE) determination at the Animal Nutrition Laboratory in the Department of Animal Science and Nutrition, Chattogram Veterinary and Animal Sciences University, Chattogram, Bangladesh. The current study found DM 26.96%, CP 26.76%, EE 1.67%, CF 12.49%, Ash 6.89% and NFE 52.19%. Methanolic extract of the green tea leaves powder contains 95.45mg/Liter of total phenolic components. Therefore, green tea leaves powder can be a potential source of protein and phenolics containing feed additives in the poultry feed industry.