Product Name  Common Yam Rhizome P.E.
Latin name  Rhizoma Dioscoreae
Extract from:  Dry rootstock of Dioscorea opposita Thunb.
Quality standard
Ratio   10:1
Plant part used  Rootstock
Color  White
Appearance  Powder
Particle size  80 mesh
Odor  Special smell
Loss on drying  Less than 5%
Ash  <5%
Heavy Metal  <10 ppm
Pesticide residue    <2 ppm
Microbiological control
Total plate count  <1000CFU/gm
Escherichia coli  Negative
Salmonella  Negative
Mildew and Microzyme  <100CFU/gm
Storage  Store in cool & dry place. Keep away from strong light and heat
Shelf life  2 years
Package  Inside is double layer plastic bag and outsider is cardboard drum (25kg/drum)