lacto-comb. form

1884 Internat. Health Exhib. Official Catal. 25/1 Graduated Cream Glasses, Lactobutyrometer.

1855 R. G. Mayne Expos. Lexicon Med. Sci. (1860) Lactocele.

1879 A. W. Blyth in Jrnl. Chem. Soc. XXXV. 532 After the liquid from which the galactin has been removed had been freed from the excess of lead by hydrogen sulphide, an alkaloïdal colouring matter, for which I propose the name of ‘lactochrome’, may be separated by the addition of nitrate of mercury solution.

1914 Jrnl. Biol. Chem. 17 261 The facts brought out by this investigation point very clearly to a very close relationship existing between the yellow lactochrome of milk whey and the urochrome of urine.

1936 W. L. Davies Chem. Milk xi. 218 Milk from other species of mammals also contains lactochrome. It is present in human milk.

1953 J. S. Fruton & S. Simmonds Gen. Biochem. xiii. 319 In 1879 Blyth described the isolation from milk of a yellow pigment (named lactochrome) which showed a striking green fluorescence... By 1936 the chemical nature of the yellow pigment of egg yolk and of milk had been established..; it was shown that this pigment, named riboflavin, is identical with vitamin B₂.

1933 Brit. Chem. Abstr. a. 847/2 (heading) Lactoflavin, the pigment of milk.

1938 Encycl. Brit. Bk. of Year 651/1 Recently it has been found that vitamin B₂ consists of three components, lactoflavin, vitamin B₆..and pellagrous preventing or p.p. factor.

1943 J. B. Sumner & G. F. Somers Chem. & Methods of Enzymes xiii. 244 Various flavins were described, e.g., lactoflavin of milk, hepatoflavin of liver... The flavin of these workers was the same substance which is called today ‘riboflavin’, or sometimes, ‘lactoflavin’.

1946 J. F. Fulton Howell's Textbk. Physiol. (ed. 15) liv. 1209 Both the onset and maintenance of lactation require lactogen.

1952 S. J. Folley in A. S. Parkes Marshall's Physiol. Reproduction (ed. 3) II. xx. 558 When first discovered it [sc. an anterior-pituitary protein hormone] was variously named prolactin (Riddle), galactin (Turner) and mammotropin (Lyons). Recent American practice tends to favour the terms lactogen or lactogenic hormone; the name prolactin is adopted in this chapter in accordance with English usage.

1962 Endocrinology LXXI. 218/2 The Raben preparation.., although quite potent as a lactogen in the pseudopregnant rabbit,.. has little activity in the local intradermal pigeon crop assay.

1967 Proc. National Acad. Sci. U.S.A. 58 2307 The recent identification of human placental lactogen (HPL), a polypeptide hormone which shares both biological and immunological properties with pituitary growth hormone (HGH).

1939 Riddle & Bates in E. Allen Sex & Internal Secretions xx. 1089 Lactogenesis is a response to this hormone which excites also—in both sexes—additional responses more ancient phylogenetically and perhaps more significant generally.

1948 New Biol. 4 127 A distinction has..been drawn between lactogenesis—the power of initiating milk secretion—and galactopoiesis—the power of maintaining the flow of milk once it has been started.

1969 S. R. Wellings in Reynolds & Folley Lactogenesis 5 Lactogenesis may be defined as the process by which full lactation is initiated in an already prepared mammary gland.

1933 Proc. Soc. Exper. Biol. & Med. 1933–4 31 300 We have never observed milk secretion in normal or ovariectomized virgin guinea pigs uninjected with the lactogenic hormone.

1946 J. F. Fulton Howell's Textbk. Physiol. (ed. 15) liv. 1209 The lactogenic activity of pituitary extracts was first shown by Stricker and Grüter in 1928.

1969 A. T. Cowie in Reynolds & Folley Lactogenesis 159 I now turn to the rabbit, the species in which the lactogenic role of the anterior pituitary was first discovered.

1969 R. Denamur in Reynolds & Folley Lactogenesis 60 Thus, lactogenically prolactin modifies the polyribosomes by increasing their number in the cell.

1878 A. M. Hamilton Nerv. Dis. 335 The syrup of the lacto~phosphate of lime.

1864 Reader No. 86. 239/2 A new albuminoidal substance found in milk..lacto-proteine.

1858 P. L. Simmonds Dict. Trade Products Lactoscope,..an instrument invented by M. Donne, of Paris, for ascertaining the opacity of milk, and thus estimating the richness of the fluid in cream.

1884 Internat. Health Exhib. Official Catal. 25/1 Milk Thermometers..Lacto-Thermometer.

1907 Practitioner June 845 The lacto-vegetarian diet..lessens auto-intoxication.

1929 Encycl. Brit. VII. 359/1 A lacto-vegetarian diet which permits the free use of milk and eggs.

1951 News Chron. 13 Dec. 3/2 Man was not designed for a purely vegetable diet. There was no objection whatever to lacto-vegetarian diet (this includes milk and eggs).

1940 Nature 7 Dec. 726/2 It..looks as if the Briton's dietary will gradually shift, at least during the war years, towards lactovegetarianism.

1927 Jrnl. Chem. Soc. 546 Barium lactobionate was methylated in a manner similar to that already mentioned.

1964 Chem. Abstr. 61 16697 Ca lactobionate..may be used under the Federal Food, Drug, and Cosmetic Act as a firming agent in dry pudding mixes.

1889 Jrnl. Chem. Soc. 56 485 Lactobionic acid, C₁₂H₂₂O₁₂, is obtained when milk-sugar (1 part) dissolved in water (7 parts) is treated with bromine (1 part).

1889 Jrnl. Chem. Soc. 56 486 Lactobionic acid is decomposed into galactose and gluconic acid when warmed with dilute mineral acids.

1967 Kirk-Othmer Encycl. Chem. Technol. (ed. 2) XIII. 571 The sequestrant and emulsifying properties of lactobionic acid suggest a commercial potential, especially in the food industry, for this product.

1898 Jrnl. Chem. Soc. 74 ii. 509 When silicon tetrachloride is heated with mandelonitrile or lactonitrile, silicic acid and complex tarry products are formed.

1935 Chem. Abstr. 29 814 For prepg. an aliphatic cyanohydrin such as lactonitrile, reaction is effected between HCN and an aliphatic aldehyde or ketone such as acetaldehyde.

1961 Chem. Abstr. 55 8268 The alkyl and aralkyl α-hydroxy nitriles, i.e. lactonitrile, [etc.].., are effective reagents for the extn. of Au and Ag by cyanidation... Crude lactonitrile which is a by~product from the manuf. of acrylonitrile is inexpensive and very efficient.

1896 Jrnl. Royal Microsc. Soc. 481 M. J. Amann recommends the following fluids for preserving and imbedding mosses..(1) Lactophenol.

1929 W. R. Taylor in C. E. McClung Handbk. Microsc. Technique iv. 139 A solution (Lactophenol) composed of lactic acid [etc.]..is very serviceable and may be used for mounting various materials, softening dried material (especially algæ) or decalcifying specimens.

1970 Watsonia 8 140 Pollen grains stained with cotton blue in lactophenol.