S-Adenosyl L-methionine |29908-03-0
Whakaahuatanga Hua:
I kitea tuatahitia te S-adenosylmethionine e nga kaiputaiao (Cantoni) i te tau 1952.
Ka whakahiatohia e te adenosine triphosphate (ATP) me te methionine i roto i nga ruma e te methionine adenosyl transferase (Methionine Adenosyl Transferase), a, ka uru ki te tauhohenga whakawhiti methyl hei coenzyme, ka ngaro te roopu methyl, ka pirau ki te roopu S-adenosyl Histidine. .
Ko nga tohu hangarau o L-Cysteine 99%:
| Tūemi Tātari | Whakatakotoranga |
| Te ahua | Ma ki te paura ma |
| Ihirangi wai (KF) | 3.0% MAX |
| Te pungarehu whanariki | 0.5% MAX. |
| PH (5% TE WHAKAMAHI RIRI) | 1.0 -2.0 |
| S, S-Isomer (HPLC) | 75.0% MIN |
| SAM-e ION (HPLC) | 49.5 - 54.7% |
| P-Toluenesulfonic Acid | 21.0%–24.0% |
| Ihirangi o te Sulfate (SO4) (HPLC) | 23.5%–26.5% |
| Tosylate Disulfate | 95.0%–103% |
Matū e pā ana (HPLC):
| - S-adenosyl-l-homocysteine | 1.0% MAX. |
| - Adenina | 1.0% MAX. |
| - Methylthioadenosine | 1.5% MAX |
| - Adenosine | 1.0% MAX. |
| - Katoa nga poke | 3.5% MAX. |
| Nga konganuku taumaha | Kaua e neke ake i te 10 ppm |
| Arataki | Kaua e neke ake i te 3 ppm |
| Cadmium | Kaua e neke ake i te 1 ppm |
| Mercury | Kaua e neke ake i te 0.1 ppm |
| Arsenic | Kaua e neke ake i te 2 ppm |
Microbiology
| Tatau Aerobic Tapeke | ≤1000cfu/g |
| Te tatau rewena me te pokepokea ai | ≤100cfu/g |
| E. coli | Kei te ngaro/10g |
| S. aureus | Kei te ngaro/10g |
| Haramona | Kei te ngaro/10g |
