Glucono-Delta-Lactone (GDL) 90-80-2
Khoom Description
Glucono delta-lactone (GDL) yog ib qho khoom noj khoom haus uas tshwm sim nrog tus lej E E575 siv los ua ib qho sequestrant, acidifier, los yog curing, pickling, los yog leavening agent. Nws yog lactone (cyclic ester) ntawm D-gluconic acid. Pure GDL yog cov hmoov dawb tsis muaj ntxhiab crystalline hmoov.
GDL feem ntau pom muaj nyob rau hauv zib ntab, kua txiv hmab txiv ntoo, kua txiv hmab txiv ntoo, thiab cawv txiv hmab. GDL yog nruab nrab tab sis hydrolyzes hauv dej rau gluconic acid uas yog acidic, ntxiv ib qho tangy saj rau cov khoom noj, txawm hais tias nws muaj kwv yees li ib feem peb ntawm cov kua qaub ntawm citric acid. Nws yog metabolized rau qabzib; ib gram ntawm GDL yields roughly tib tus nqi ntawm metabolic zog li ib gram suab thaj.
Ntxiv rau dej, GDL yog ib feem ntawm hydrolyzed rau gluconic acid, nrog rau qhov sib npaug ntawm daim ntawv lactone thiab cov kua qaub tsim los ua cov tshuaj sib npaug. Tus nqi ntawm hydrolysis ntawm GDL yog nce los ntawm tshav kub thiab siab pH
Specification
| Yam khoom | STANDARD |
| IDENTIFICATION | POSITIVE |
| GDL | 99-100.5% |
| CHARACTERISTIS | DAWB CRYSTALLINE POWDER, yuav luag tsis muaj ntxhiab |
| SOUBILITY | Yooj yim soluble hauv dej, nyuaj soluble hauv Ethanol |
| LUB TSEV | 152 ℃ ± 2 |
| NYIAJ | = <0.5% |
| Txo cov khoom (raws li D-GLUCOSE) | = <0.5% |
| AS | =<1PPM |
| HAIV NEEG | = <10PPM |
| LEAD | = <2 PPM |
| MERCURY | =<0.1PPM |
| CADMIUM | = <2 PPM |
| CALCIUM | = <0.05% |
| CHLORIDE | = <0.05% |
| SULPHATES | =<0.02% |
| LOSS NTAWM DRYING | =<1% |
| PH | 1.5 ~ 1.8 hli |
| AEROBE | 50/G MAX |
| YEES | 10/G MAX |
| POM | 10/G MAX |
| E.COLI | Tsis muaj nyob ntawm 30G |
| SALMONELLA | Tsis muaj nyob ntawm 25G |
