diastase


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diastase

 [di´ah-stās]
a combination of enzymes produced during germination of seeds, and contained in malt; it converts starch into maltose and then into glucose.

di·a·stase

(dī'a-stās),
A mixture, obtained from malt and containing amylolytic enzymes (principally α- and β-amylases), that converts starch into dextrin and maltose; used to make soluble starches, to aid in digestion of starches in certain types of dyspepsia, and to digest glycogen in histologic sections.
[Fr., fr. G. diastasis, separation, fr. dia, apart + histēmi, to make to stand]

diastase

/di·a·stase/ (-stās) a mixture of starch-hydrolyzing enzymes from malt; used to convert starch into simple sugars.

diastase

(dī′ə-stās′, -stāz′)
n.
An amylase or a mixture of amylases that is found in milk and that converts starch to dextrin and maltose.

di′a·sta′sic (-stā′sĭk, -zĭk) adj.

di·a·stase

(dī'a-stǎs)
A mixture, obtained from malt and containing amylolytic enzymes (principally α- and β-amylases), which converts starch into dextrin and maltose; used to make soluble starches, to aid in digestion of starches in certain types of dyspepsia, and to digest glycogen in histologic sections.
[Fr., fr. G. diastasis, separation, fr. dia, apart + histēmi, to make to stand]

diastase

An ENZYME capable of breaking down starch. An amylase.

diastase

an enzyme mixture common in seeds such as barley, that is responsible for starch hydrolysis. The mixture contains amylases for conversion of starch to MALTOSE (sometimes via DEXTRIN) and MALTASE for conversion of maltose to glucose.

diastase

a combination of enzymes produced during germination of seeds, and contained in malt; it converts starch into maltose and then into dextrose.
References in periodicals archive ?
The T6 sample obtained from an agricultural zone (Drean) contains a diastase activity lower than the standard [13-16, 18, 22-25] with a rate of HMF in the codex interval.
Matching preparations were pretreated with diastase or held in distilled water during the acid hydrolysis to serve as negative controls.
Histochemical stains showed negative staining for PAS with diastase predigestion (dPAS), and in a few epithelial cases, mucicarmine stained focal areas.
The negative control, diastase treatment was used over all treatments and all had less intense staining, indicating stained material was glycogen (Figs.
One case was subjected to epithelial membrane antigen and CD10 immunohistochemical stains and histochemical staining for periodic acid-Schiff with and without diastase digestion.
Histochemical stains including Periodic acid-Schiff with diastase pretreatment and Alcian Blue confirmed intracytoplasmic and extracellular mucin in the tumour.
In all cases, special stains, including tissue Gram (Brown-Hopps), periodic acid-Schiff with diastase digestion, Grocott methenamine silver, acid-fast bacilli, and Fite, yielded negative findings for bacterial, fungal, and mycobacterial organisms.
Each liver specimen was fixed in formalin, and paraffin-embedded sections were routinely stained with hematoxylin-eosin, periodic acid-Schiff with and without previous digestion of glycogen by diastase, van Gieson, Perls iron stain, and Gordon-Sweet stain.
Stains of the neoplastic cells were positive for both acid and neutral mucin, and periodic acid-Schiff (PAS) was positive after diastase reaction.
Group atrophy is highlighted on either paraffin or frozen sections with a periodic acid-Schiff plus diastase stain.
Specimens obtained from transjugular liver biopsy (1-mm length) and from native liver were cut into 3- to 5-[micro]m-thick sections and stained with Hematoxylin-eosin, Masson trichrome, Oil red O, Prussian blue, and PAS after diastase digestion.
The staining currently automated are: Massons~s trichrome (or Gomori~s trichrome), Grocott~s Methenamine Silver (or Gomori~s Methenamine Silver), Giemsa, Gordon and Sweet (or Gomori and Snook), Congo Red, Jones Methenamine Silver (with H&E contrast colour), Gram, PAS + diastase (2 kit), Perls Prussian Blue, Alcian Blue (pH 2,5), Ziehl-Neelsen, Elastin (Modified Weigert~s Resorcin Fuchsin, Verhoeff~s elastic tissue).