5 Trung KG, Thanh HN (2013) The influence of source material to the basic chemical composition of tea varieties midland. J Sci Development 11: 373-9.
6 Nguyen T, Thanh T (2014) Preparations application enzyme pectinase solution extraction ambarella fruit rich in antioxidant compounds. Master's thesis Encyclopedic University.
9 TCVN (ISO 14502-1:2005) (2013) Tea-Determination of substances characteristic of green tea and black tea part 1: the total Polyphenol Content In Tea-Color Measurement Method Using Reagents Folin-Ciocalteu. Chief author 9745-1.
11 Son Vu Hong, Tu Ha Duyen (2009) The research of extracting polyphenols from green tea. Part1: the factors affecting the process of quoting li polyphenols. J Sci Technol 47: 81-6.
5 Trung KG, Thanh HN (2013) The influence of source material to the basic chemical composition of tea varieties midland. J Sci Development 11: 373-9.
6 Nguyen T, Thanh T (2014) Preparations application enzyme pectinase solution extraction ambarella fruit rich in antioxidant compounds. Master's thesis Encyclopedic University.
9 TCVN (ISO 14502-1:2005) (2013) Tea-Determination of substances characteristic of green tea and black tea part 1: the total Polyphenol Content In Tea-Color Measurement Method Using Reagents Folin-Ciocalteu. Chief author 9745-1.
11 Son Vu Hong, Tu Ha Duyen (2009) The research of extracting polyphenols from green tea. Part1: the factors affecting the process of quoting li polyphenols. J Sci Technol 47: 81-6.