| 词汇 | glycerol |
| 释义 | glycerol noun[ U ] chemistry specializeduk /ˈɡlɪs.ə.rɒl/ us /ˈɡlɪs.ə.rɑːl/ a thick, sweet, colourless liquid that has many industrial and medical uses, for example to make food taste sweet and in treatments for the skin: 丙三醇，甘油（同 glycerine） Cough syrups containing glycerol, honey and lemon are safe for children. The process of soap making yields glycerol and the salts of fatty acids (soaps). Synonym glycerine Frozen blood can be stored; the blood is mixed with glycerol, which prevents formation of ice crystals. Glycerine, also known as glycerol and glycerin, is used in some cake icings to improve consistency and is available from chemists and supermarkets. There was no observable advantage to adding glycerol to the formulation, probably because glycerol is transparent to UVC wavelengths. In triglycerides a glycerol molecule (C3H8O3) combines with three fatty acids. Chemicals, chemical compounds & gases acetic acid acetone acrolein acrylamide activated charcoal adenine agglomerate ethyl alcohol H2O HCFC HFC hyaluronic acid hydrochloric acid hydrochlorofluorocarbon laughing gas limescale metho meths oxyacetylene tartaric acid glycerol | American Dictionaryglycerol noun[ U ] us/ˈɡlis·əˌrɔl, -ˌroʊl/ biology a clear, thick liquid found in fats and oils, which is used in making many things, including explosives and medicines Examples of glycerolglycerol Atomic structure of a glycerol channel and implications for substrate permeation in aqua(glycero)porins. The slide was mounted with 50 % glycerol and examined under a fluorescent microscope. Selectivity and conductance among the glycerol and water conducting aquaporin family of channels. For two compounds (glycerol and glyceric acid) abundances were determined on the same order of magnitude as for the amino acid glycine. The authors drew the conclusion that glycerol facilitated, even though not to the same degree of water, the anharmonic transition in proteins. Lipid hydrolysis was also detected by measuring lipase activity with glycerol ester as substrate. When diapause is completed, the concentration of cryoprotectors (for example, glycerol) and tolerance of low temperatures decline significantly, even under constant external temperature conditions. Bioprotectants such as glycerol and trehalose as well as organic solvents have been used in experiments with lyophilized protein powders. Preliminary estimates of the permeability of mouse ova and early embryos to glycerol. The viscous syrup (green) was placed in the outer lock, and the glycerol (red) in the inner lock. It stayed at this level with smaller non-electrolytes down to the size of glycerol. Both of these molecules contain transbilayer pores, permeable to glycerol and to water, respectively, but impermeable to ions. Detection by high pressure infrared spectrometry of hydrogen-bonding between water and triacetyl glycerol. Moreover, the synthetic diacylglycerol analog, 1-oleoyl-2-acetyl-sn-glycerol, also fails to activate the light-sensitive channels. The sections were then covered in a 4:1 solution of glycerol: distilled water and glass coverslips held in place by nail enamel. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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