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gelatin    音標拼音: [dʒ'ɛlətən]
n. 骨膠;植物膠;動物膠

骨膠;植物膠;動物膠

gelatin
n 1: a colorless water-soluble glutinous protein obtained from
animal tissues such as bone and skin [synonym: {gelatin},
{gelatine}]
2: an edible jelly (sweet or pungent) made with gelatin and used
as a dessert or salad base or a coating for foods [synonym:
{gelatin}, {jelly}]
3: a thin translucent membrane used over stage lights for color
effects [synonym: {gelatin}, {gel}]

Gelatin \Gel"a*tin\, Gelatine \Gel"a*tine\, n. [F. g['e]latine,
fr. L. gelare to congeal. See {Geal}.] (Chem.)
Animal jelly; glutinous material obtained from animal tissues
by prolonged boiling. Specifically (Physiol. Chem.), a
nitrogeneous colloid, not existing as such in the animal
body, but formed by the hydrating action of boiling water on
the collagen of various kinds of connective tissue (as
tendons, bones, ligaments, etc.). Its distinguishing
character is that of dissolving in hot water, and forming a
jelly on cooling. It is an important ingredient of
calf's-foot jelly, isinglass, glue, etc. It is used as food,
but its nutritious qualities are of a low order.
[1913 Webster]

Note: Both spellings, gelatin and gelatine, are in good use,
but the tendency of writers on physiological chemistry
favors the form in -in, as in the United States
Dispensatory, the United States Pharmacop[oe]ia,
Fownes' Watts' Chemistry, Brande & Cox's Dictionary.
[1913 Webster]

{Blasting gelatin}, an explosive, containing about
ninety-five parts of nitroglycerin and five of collodion.


{Gelatin process}, a name applied to a number of processes in
the arts, involving the use of gelatin. Especially:
(a) (Photog.) A dry-plate process in which gelatin is used as
a substitute for collodion as the sensitized material.
This is the dry-plate process in general use, and plates
of extreme sensitiveness are produced by it.
(b) (Print.) A method of producing photographic copies of
drawings, engravings, printed pages, etc., and also of
photographic pictures, which can be printed from in a
press with ink, or (in some applications of the process)
which can be used as the molds of stereotype or
electrotype plates.
(c) (Print. or Copying) A method of producing facsimile
copies of an original, written or drawn in aniline ink
upon paper, thence transferred to a cake of gelatin
softened with glycerin, from which impressions are taken
upon ordinary paper.

{Vegetable gelatin}. See {Gliadin}.
[1913 Webster]

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英文字典中文字典相關資料:
  • Gelatin fining a lager, when? - Homebrew Talk
    24 to 48 hours seems to do the trick You can actually see the gelatin doing it's thing in the carboy The beer will start to clear from the top and will gradually drop to the bottom Even if you rack to a keg before the gelatin has completely cleared the beer it will continue to work in the keg, its a pretty hard process to screw up
  • Fining using gelatin | Homebrew Talk - Beer, Wine, Mead, Cider . . .
    I use ratio of 1:2 where 1 gram of gelatin equals 2 oz water per gallon So for a 5 gal batch this would be 5 grams of gelatin to 10 oz water It works best if beer is 40 degrees or colder and allowed to work 2-3 days 1 Dissolve rehydrate by sprinkling gelatin onto water and gently stir - allow to bloom for 30 mins (I cover with sanitized foil
  • Using Gelatin for clearing - Homebrew Talk
    What I do (when adding gelatin to the keg) 1 add 1 cup of water to pyrex measuring cup 2 sprinkle 1 2 pack Knox gelatin evenly over the surface of the water (no clumps) 3 LET THE GELATIN "BLOOM" FOR 20 MINUTES (leave it covered with a paper towel) 4 Put in microwave for 2 minutes or until the water temp reaches 180F (will be clear) 5
  • gelatin finings? | Homebrew Talk - Beer, Wine, Mead, Cider Brewing . . .
    The gelatin you added was probably to cool beer and it just fell straight to the bottom of the keg If you're going to go straight to the keg with gelatin, prepare for a deeper yeast cake I took my dip tubes out and gave them a sharper bend so they were about 1 2 inch off the bottom
  • Gelatin + Priming + Dry Hopping. What order method do you use?
    No, gelatin will not decrease the body of the beer No, gelatin will not prevent the yeast from carbing the beer, although it might slow it down slightly Yes, if you have the ability to dry hop after using gelatin do that, if not no biggie Personally, if I were unable to cold crash the beer, I wouldn't use gelatin Especially, as a new brewer
  • How long for gelatin to work? - Homebrew Talk
    Gelatin works better the colder you can get your beer I put gelatin in a pale ale with US-05 yeast (not the most flocculant ) three days ago After 48 hours in a keg at 33 degrees F, I dumped a pint off and then poured another to check the clarity and found it rather cloudy
  • Gelatin Fining - Cold Versus Warm - Homebrew Talk
    The gelatin “waits” diluted in the warm beer and during chilling, the chill haze forms, gelatin “grabs” on it and clears the beer in the next 48 hours as usual The gelatin settles to the bottom of the warm bottle (taking the haze that is already present) and then, after chilling, the chill haze forms, but does not settle
  • Gelatin That Does Not Stink - Homebrew Talk
    I brew with gelatin (animal collagen) for finings and find it is excellent to providing a very clear beer I have used some gelatin I bought at the brew shop and I have used the Knox gelatin Both smell like a wet goat when rehydrated, but I noticed the Knox was less nauseating than the brew shop gelatin The stuff from the brew shop smells STRONG
  • Using Knox gelatin for the 1st time - Homebrew Talk
    The gelatin should be soaked in cold water, just like it says on the label This is called "blooming" the gelatin, rehydrating the granules and letting it start to dissolve in the water After 10 minutes or so heat the resulting goo to pasteurization temperature, or about 170F Do not boil the gelatin solution Stir the heated mixture to
  • 1 gallon batch, how much gelatin?? - Homebrew Talk
    Mix 1 gram per gallon of finished beer unflavored gelatin (Know brand or LHBS gelatin) in room temperature water (1 fl oz per gallon of finished beer) Rehydrate for at least 10 min Heat to 160F in microwave (5-10s heating intervals), check temperature with sanitized digital thermometer and repeat, do not boil!





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