USD $1.00-10.00 / Kilogram
USD $2,000.00-2,000.00 / Metric Ton
USD $1.00-10.00 / Kilogram
specification sheet |
|||
product name: |
dihydromyricetin |
origin: |
zhang jiajie(800m-1500m) hunan,china |
specification: |
98% dihydromyricetin |
plant part used: |
leaf(dried,100% natural) |
latin name: |
ampelopsis grossedentata |
active ingredients: |
dihydromyricetin |
analysis items |
specifications |
test methods |
description |
|
|
identification |
positive |
tlc |
appearance&color |
white powder |
visual |
odor&taste |
characteristic |
organoleptic |
mesh size |
nlt 90% through 80 mesh |
80 mesh screen |
solubility |
good solubility in hydro-alcoholic solution |
visual |
extract solvent |
grain alcohol and water |
/ |
excipient |
none |
/ |
assay |
nlt 98% dihydromyricetin |
hplc-uv |
physical |
|
|
loss on drying |
nmt 2% |
gb/t5009.3-2003 |
ash |
nmt 1% |
gb/t5009.4-2003 |
chemical |
|
|
heavy metals |
nmt 20ppm |
cp2005 |
arsenic(as) |
nmt 2ppm |
gb/t5009.11-2003 |
lead(pb) |
nmt 2ppm |
gb/t5009.12-2003 |
bhc |
nmt 0.1ppm |
gb/t5009.146-2003 |
ddt |
nmt 0.1ppm |
gb/t5009.146-2003 |
sterilization method |
high temperature&high pressure for short time(5’’-10’’) |
|
microbiol |
|
|
total plate count |
nmt 1,000 cfu/g |
gb/t4789.2-2003 |
total yeast&mold |
nmt 100 cfu/g |
gb/t4789.15-2003 |
e.coli |
negative |
gb/t4789.3-2003 |
salmonella |
negative |
gb/t4789.4-2003 |
packing&storage |
pack in paper-drums and two plastic-bags inside.net weight 25kg/drum. store in a well-closed container away from moisture. |
|
shelf life |
2 years if sealed and store away from direct sun light. |