Anaerobic conversion of lactic acid to acetic acid and 1,2-propanediol
by Lactobacillus buchneri.
[sup],, The combination of ethylene glycol (EG) plus dimethyl sulphoxide (DMSO) and EG plus 1,2-propanediol
(PROH) are both effective in oocyte vitrification during clinical applications.
10 mL of 1,2-propanediol
was added into a 50 mL threenecked flask at 170[degrees] C for 2 h.
a Reaction conditions: 10 wt% glycerol aqueous solution; H 2 pressure:6 MPa; catalyst weight: 4 g; reaction temperature: 513 K; LHSV: 0.9 h -1 1,2-PD = 1,2-propanediol
; 1-PO = 1-propanol; EG = ethylene glycol; EtOH = ethanol; MeOH = methanol
Glycerol can cover possible conversion into useful products such as 1,3-propanediol, 1,2-propanediol
, dihydroxyacetones, hydrogen, polyglycerols, succinic acid, polyesters, and ethanol.
Vitrified-warmed oocytes are now considered to be a regular source of supply for in vitro fertilization (IVF) technique and therefore present study was undertaken to compare the best of several combinations of dimethyl sulfoxide (DMSO) and 1,2-propanediol
(PROH) for the vitrification of buffalo oocytes.
Human embryo features that influence the success of cryopreservation with the use of 1,2-propanediol
. Fertility and Sterility.
Other names for propylene glycol are: 1,2-dihydroxypropane; 1,2-propanediol
; methyl glycol; and trimethyl glycol.
Of the eight compounds, three (butyric acid; 1,2-propanediol
diacetate; and 2-ethylhexyl acetate) were detected in prerecall, recall, and postrecall cigarettes; the other five compounds were not detected.
In wheat, for example, Li, Wang, Cai, and Pang (2015) detected a high number of heterofermentative microorganisms, contributing with 66.7% of the total lactic acid bacteria; these microorganisms have a distinct fermentation pattern, leading to the formation of different compounds, such as acetic acid and 1,2-propanediol
, which result in higher losses of DM compared to the homolactic pathway, which could justify the greatest losses found (Muck, 2010).
Lathi, "Intensification of enzymatic synthesis of propylene glycol monolaurate from 1,2-propanediol
and lauric acid under microwave irradiation: kinetics of forward and reverse reactions," Enzyme and Microbial Technology, vol.
Accumulation of 1,2-propanediol
and enhancement of aerobic stability in whole crop maize silage inoculated with Lactobacillus buchneri.
Hansen's solubility parameters ([delta]/[MPa.sup.0.5]) Compound Total Dispersion Polar H bond Glycerin (Hansen 2000) 36.1 17.4 12.1 29.3 3 Chloro 1,2 propanediol 28.8 18.3 8.3 20.6 (est) (a) 3 Chloro 1 propanol 23.6 17.5 5.7 14.7 (Hansen 2000) "Lignin" (Hansen and ~29 ~22 ~14 ~14 Bjorkman 1998) "Cellulose" (Hansen and ~29 ~17 ~17 ~16 Bjorkman 1998) (a) est = estimated based on difference between nonchlorinated 1-propanol and 1,2-propanediol