Dictionary » D » Dextrose



(Science: chemistry) a sirupy, or white crystalline, variety of sugar, C6H12O6 (so called from turning the plane of polarization to the right), occurring in many ripe fruits. Dextrose and levulose are obtained by the inversion of cane sugar or sucrose, and hence called invert sugar. Dextrose is chiefly obtained by the action of heat and acids on starch, and hence called also starch sugar. It is also formed from starchy food by the action of the amylolytic ferments of saliva and pancreatic Juice.

The solid products are known to the trade as grape sugar; the sirupy products as glucose, or mixing sirup. These are harmless, but are only about half as sweet as cane or sucrose.

See: dexter.

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Re: incubating streptomyces lydicus

... have maintained it? Anyway, normally for fungal growth and maintenance you need to grow the fungi at 26-28C temparature for incubation on Potato Dextrose Agar (PDA). While you carry out with some experiments with your fungi, you need to grow them on Sabouraud Dextrose Agar (SDA). All the best! ...

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by greatmicrobiologist
Thu Mar 14, 2013 2:48 pm
Forum: Microbiology
Topic: incubating streptomyces lydicus
Replies: 4
Views: 3260

Unknown Organism

... Phenylalanine deaminase is present* 14. SIM Medium Sulfur is not reduced, Tryptophan is not broken down, and organism is motile 15. LIA Ferments dextrose only, no lysine deaminase* 16. TSI Ferments dextrose, lactose and/or sucrose I am 95% positive it is a facultative anaerobe. The ones marked ...

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by CheriPeace
Fri Jun 29, 2012 9:08 pm
Forum: Microbiology
Topic: Unknown Organism
Replies: 5
Views: 6030

Indentifying an Unknown

... anaerobe. The following are the tests I ran and whether or not they had positive (+) or negative (-) results. Thank you. Gelatin Agar: - Dextrose/Glucose: + Lactose: + Mannitol: + Sucrose: + MR: + VP: + Catalase: + Oxidase: + Nitrate: + Starch: - Casein Hydrolysis: - Lipase: + Indole: ...

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by tkdgirl
Wed Apr 04, 2012 8:22 pm
Forum: Microbiology
Topic: Indentifying an Unknown
Replies: 0
Views: 1550

Fungal Contamination on jaggery

I have isolated a fungal contamination from jaggery and streaked on sabouraud dextrose agar plate. It was light chocolate brown in color on the jaggery. I have stained the fungi with Lactophenol cotton blue and observed under 100X of Bright-field microscope. I ...

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by greatmicrobiologist
Thu Feb 02, 2012 12:43 pm
Forum: Microbiology
Topic: Fungal Contamination on jaggery
Replies: 3
Views: 2224

Blood Banks - Storage Media.

http://en.wikipedia.org/wiki/Blood_bank As mentioned, "Routine blood storage is limited to 21 days at 1°- 6°C when treated with acid-citrate-dextrose (ACD), citrate-phosphate-dextrose (CPD) or citrate-phosphate-double dextrose (CP2D) and 35 days when treated with citrate-phosphate-dextrose-adenine ...

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by prashantakerkar
Wed Nov 09, 2011 10:42 am
Forum: Human Biology
Topic: Blood Banks - Storage Media.
Replies: 2
Views: 1532
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