| 영문 | lactose | 한글 | 젖당 |
|---|---|---|---|
| 설명 | 포도당 1몰과 갈락토오스 1몰로 이루어지는 이당류의 하나. 분자식 C22H22O11, 분자량 342.29. 유당이라고도 한다. 무색결정으로서 약간의 단맛이 있다. 우유 속에는 약 4.5%, 인유 속에는 약 7% 함유되어 있다. 환원기의 입체배치의 차에 의해 α형과 β형이 있으며, 20℃에서는 약 37.3% 대 62.7%의 비율로 존재한다. 이 상태의 락토오스를 평형락토오스라고 한다. 어린이의 영양제로 쓴다. |
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| CAF | cell adhesion factor; citric acid fermentation |
|---|---|
| MOF | marine oxidation/fermentation; methotrexate, Oncovin, and fluorouracil; multiple organ failure |
| MRFT | modified rapid fermentation test |
| NLF | neonatal lung fibroblast; nonlactose fermentation |
| OF | occipitofrontal; open field [test]; optical fundus; orbitofrontal; osmotic fragility; osteitis fibro... |
| Lac | Lactose |
|---|---|
| SSF | Simultaneous Saccharification and Fermentation |
| SSF | Solid state fermentation |
| oral lactose tolerance test | A test for lactose deficiency; the plasma glucose response to an oral lactose load is measured as in the (oral) glucose tolerance test. (05 Mar 2000) |
|---|---|
| lactose | The major sugar in human and bovine milk. Conversion of lactose to lactic acid by Lactobacilli etc. Is important in the production of yoghurt and cheese. (18 Nov 1997) |
| lactose carrier protein | <protein> The best known example is the product of the lacY gene, coded for in the lactose operon and responsible for the uptake of lactose by E. Coli. (18 Nov 1997) |
| lactose factors | Plasmids which determine the ability of a bacterium to ferment lactose. (12 Dec 1998) |
| lactose intolerance | A disorder characterised by abdominal cramps and diarrhoea after the consumption of food containing lactose (for example milk, ice cream), believed to occur due to a deficiency of intestinal lactase (enzyme that breaks down lactose), may appear first in young adults who have previously tolerated milk well as infants. (27 Sep 1997) |
| lactose-litmus agar | Agar made by adding 2% lactose and litmus to acid-free nutrient agar; formerly used in the identification of Salmonella typhi. (05 Mar 2000) |
| lactose operon | Group of adjacent and coordinately controlled genes concerned with the metabolism of lactose in E. Coli. The lac operon was the first example of a group of genes under the control of an operator region to which a lactose repressor binds. When the bacteria are transferred to lactose containing medium, allolactose (which forms by transglycosylation when lactose is present in the cell) binds to the repressor, inhibits the binding of the repressor to the operator and allows transcription of mRNA for enzymes involved in galactose metabolism and transport across the membrane (_ galactosidase, galactoside permease and thiogalactoside transacetylase). (18 Nov 1997) |
| lactose permease | <chemical> Chemical name: permease, lactose Synonym: lactose carrier protein, lactose permease m protein, lac permease, lactose transport protein, lactose transport system, lac carrier protein, lacs protein, lactose transport system, streptococcus thermophilus, lacy protein (26 Jun 1999) |
| lactose repressor | Protein (tetramer of 37 kD subunits) that normally binds with very high affinity to the operator region of the lactose operon and inhibits transcription of the downstream genes by blocking access of the polymerase to the promoter region. When the lactose repressor binds allolactose, its binding to the operator is reduced and the gene set is derepressed. (18 Nov 1997) |
| lactose synthase | <enzyme> An enzyme of the transferase class that catalyses the transfer of galactose from udpgalactose to glucose, forming lactose. The enzyme is a complex of the enzyme n-acetyllactosamine synthase and alpha-lactalbumin; the latter protein is present in lactating mammary gland cells where it alters the usual specificity of the former to make lactose synthesis the preferred reaction. Chemical name: UDPgalactose:D-glucose 4-beta-D-galactosyltransferase Registry number: EC 2.4.1.22 (12 Dec 1998) |
| acetic fermentation | <biochemistry> A type of fermentation conducted by certain microbes in which organic materials are broken down into acetic acid to generate ATP for energy. (09 Oct 1997) |
| acetone-butanol fermentation | <biochemistry, microbiology> The formation of acetone and butanol through the fermentation of glucose by Clostridium acetobutylicum. However, most industrial plants make acetone and butanol through synthetic processes that use petrochemicals. (06 May 1997) |
| acidogenic fermentation | <biochemistry, microbiology> Any fermentation that produces a weak acid, such as lactic acid. (06 May 1997) |
| adsorption fermentation | <microbiology> (extractive fermentation) A fermentation technique in which products of the fermentation are removed from the broth by adsorption onto materials such as carbon or polymers. Generally, the preferred method of doing this is to circulate the fermenting broth through the adsorbent substrate, because the fermentation products are often toxic to the microbes. (06 May 1997) |
| alcoholic fermentation | The anaerobic formation of ethanol and CO2 from d-glucose. Compare: Gay-Lussac's equation. (05 Mar 2000) |
제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
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제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
|---|