What's the difference between dulcite and lactose?
Dulcite
Definition:
(n.) A white, sugarlike substance, C6H8.(OH)2, occurring naturally in a manna from Madagascar, and in certain plants, and produced artificially by the reduction of galactose and lactose or milk sugar.
Example Sentences:
(1) Among the escherichia 0151:K--there was revealed the presence of 5 biotypes by the capacity to gas-formation in glucose, arabinose, sorbit, dulcit fermentation, and decarboxylation of lysin and ornithin; three biotypes are described for the first time.
(2) A scheme for determining fermentovars of Klebsiella is suggested which includes the tests--fermentation of adonite, dulcite, d-tartrate, glutamic acid; color reaction with 5-ASA.
(3) Suggested is the employment of the tests for motility, dulcit, maltosa, ramnosa, sorbit, and ornithine for the rapid differentiation of Salmonella gallinarum from the closely related Salmonella species of D serologic group.
(4) The authors present the results of studies of etiology of acute group intestinal diseases in neonates from whom escherichia of serological group 0128ac:K67 possessing the following characteristics were isolated: of the same (with the H12 antigen) serological and enzymatic type (nonfermenting sucrose and raffinose, fermenting dulcit and sorbit the first 24 hours, and slowly fermenting ramnose).
(5) The paper deals with the results of analysis of 219 strains of Klebsiella using 12 tests--fermentation of adonite, asparaginic acid, sodium citrate, dulcite, d-tartrate, glutamic acid, inosite, L-proline, sodium malonate; reactions with methyl red, Foges-Proscauer, with 5-ASA.
Lactose
Definition:
(n.) Sugar of milk or milk sugar; a crystalline sugar present in milk, and separable from the whey by evaporation and crystallization. It has a slightly sweet taste, is dextrorotary, and is much less soluble in water than either cane sugar or glucose. Formerly called lactin.
(n.) See Galactose.
Example Sentences:
(1) Peptide:N-glycosidase F removed both the asparagine-linked oligosaccharide chains of ricin B-chain in the absence of lactose.
(2) A relative net reduction of 47% in lactose malabsorption was produced by adding food, and the peak-rise in breath H2 was delayed by 2 hours.
(3) These swine were compared to four groups fed the medicated diet to determine the effect of duration of treatment and degree of animal isolation on the persistence of resistance in lactose-fermenting enteric organisms.
(4) Preliminary results in humans indicate that 3H-I was absorbed to a much greater extent following oral administration of the drug in sesame oil than when admixed with lactose.
(5) Measurements of the lactose repressor over a tenfold range of cell growth rates were made on protein extracts from Escherichia coli cultures grown in media with various carbon energy sources.
(6) A role of lactose synthetase as the rate-limiting enzyme for lactose biosynthesis and the possible significance of the hydrolytic activities are discussed with respect to lactogenesis.
(7) The site I Mn2+, site II Ca2+-activated enzyme has a maximum velocity similar to that of the Mn2+-activated enzyme, and is the enzyme form that must act in lactose synthesis in vivo.
(8) The ABH(+)Le(a-b-) group had higher lactose contents than the other groups (p less than 0.01).
(9) Within that region there were two sequences, 74 and 100 bp long, that showed 46% and 50% identity, respectively, to sequences in the first 600 bp of lacY, the structural gene for the lactose permease.
(10) To determine the validity of breath H2 measurements in detecting lactase deficiency, capillary blood glucose and breath H2 were measured after ingestion of 50 g lactose in 34 patients with abdominal symptoms or diarrhea.
(11) Stationary-phase cells of Escherichia coli were enumerated by the pour plate method on Trypticase soy agar containing 0.3% yeast extract (TSYA), violet red-bile agar, and desoxycholate-lactose agar, and by the most-probable-number method in Brilliant Green-bile broth and lauryl sulfate broth.
(12) Satisfactory calibrations for lactose were obtained with the 2 Milko-scan 203 models with standard errors of estimate of 0.034 and 0.033%.
(13) In trial 1, part 2, supplementation with 4.8% fish meal increased concentration of milk protein and yields of milk, protein, lactose, and SNF.
(14) However, all of the lectins competed for the same binding sites on rabbit erythrocytes, and could be inhibited by the same saccharide haptens (notably lactose and thiodigalactoside).
(15) Hydrogen breath tests were performed in Gabon (Central Africa) after a loading dose of lactose in 67 well-nourished African children (50 with intestinal parasites and 17 unparasitized) and in 18 unparasitized young adults.
(16) Starting from peracetylated chloro- or bromo-glycosyl donors of N-acetylneuraminic acid, N-acetylglucosamine, glucose and lactose, the corresponding p-formylphenyl glycosides were synthesized stereospecifically under phase transfer catalysed conditions at room temperature in yields of 38-67%.
(17) Lactose H2 breath test seems less reliable for our purposes because of the possible presence of children with lactase deficiences, hardly comparable with the mucosal damage.
(18) While the hemagglutination activity of each of the previously described lactose-binding snake venom lectins is inhibited by reducing agent, the activities of BML and JML are not affected by reducing agent.
(19) Since the latter may lead to avoidance of calcium sources and may exacerbate the bone disease in populations at risk, we studied lactose tolerance and histomorphometrically analyzed undecalcified transiliac bone biopsies in a consecutive group of postmenopausal women with the osteoporotic spinal compression fracture syndrome.
(20) A comparison has been made between the physiology and amino acid sequence of the lactose carriers of Klebsiella pneumoniae M5a1 and Escherichia coli K-12.