agar

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agar

agar , product obtained from several species of red algae, or seaweed , chiefly from the Ceylon, or Jaffna, moss ( Gracilaria lichenoides ) and species of Gelidium, harvested in eastern Asia and California. Chemically, agar is a polymer made up of subunits of the sugar galactose; it is a component of the algae's cell walls. Dissolved in boiling water and cooled, agar becomes gelatinous; its chief uses are as a culture medium (particularly for bacteria) and as a laxative, but it serves also as a thickening for soups and sauces, in jellies and ice cream, in cosmetics, for clarifying beverages, and for sizing fabrics. See also Rhodophyta .

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agar

A Dictionary of Nursing | 2008 | Â© A Dictionary of Nursing 2008, originally published by Oxford University Press 2008. (Hide copyright information) Copyright

agar (ay-ger) n. an extract of certain seaweeds that forms a gel suitable for the solidification of liquid bacteriological culture media. Agar may also be used as a laxative.

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agar

A Dictionary of Biology | 2004 | Â© A Dictionary of Biology 2004, originally published by Oxford University Press 2004. (Hide copyright information) Copyright

agar An extract of certain species of red seaweeds that is used as a gelling agent in microbiological culture media, foodstuffs, medicines, and cosmetic creams and jellies. Nutrient agar consists of a broth made from beef extract or blood that is gelled with agar and used for the cultivation of bacteria, fungi, and some algae.

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	Cultivo in vitro de patrones de citricos tolerantes al virus de la tristeza, empleando sustratos inertes alternativos al agar.(REPORTS/COMUNICACIONES/COMUNICACOES) Magazine article from: Interciencia; 8/1/2006
	Agar Corporation Introduces a New Solution that Detects Foaming Before Upsets and Compressor Damage Occurs. Business Wire; 4/28/2008
	H&R Block Appoints Agar Chief Information Officer. Business Wire; 6/22/2007

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