Isinglass - Wikipedia, the free encyclopedia
Isinglass (pronounced /ˈaɪzɪŋɡlæs, ˈaɪzɪŋɡlɑːs/ ) is a substance obtained from the swimbladders of fish (especially Beluga sturgeon). It is a form of collagen used mainly for the clarification ...
en.wikipedia.org/wiki/Isinglass
Subject: Fining Agents, Isinglass and Structural Balance, and Summary of Fining Agent Use ... Isinglass is a protein fining agent produced from sturgeon collagen. It is available in two forms: a prehydrolyzed form that hydrates in 20 to 30 minutes and a fibrous form of flocced isinglass.
www.fst.vt.edu/extension/enology/EN/43.html
Isinglass Liquid Fining 45ml. Processed from the swim bladders of American and Russian sturgeon species, Isinglass is very effective. ...
www.randbswinesupply.com/servlet/the-34/Isinglass-Liqui... www.randbswinesupply.com/servlet/the-34/Isinglass-Liquid-Fining-45ml/Detail
The data submitted do not allow the Panel to assess the likelihood that isinglass used as fining agent in wine will trigger an adverse reaction in susceptible individuals under the conditions of use stated by the applicant.
www.efsa.europa.eu/EFSA/efsa_locale-1178620753812_11786... www.efsa.europa.eu/EFSA/efsa_locale-1178620753812_1178630797624.htm
VINIFLHOR on fish gelatine or isinglass used as fining agents in wine pursuant to Article 6 paragraph 11 of Directive 2000/13/EC - for permanent exemption from labelling; (Request Nº EFSA-Q-2006-159); (Adopted on 6 July 2007);
www.efsa.europa.eu/EFSA/Scientific_Opinion/nda_op_ej535... www.efsa.europa.eu/EFSA/Scientific_Opinion/nda_op_ej535_isinglass_dwv_viniflhor_en.pdf
Wine may therefore require two rackings following isinglass fining. Filtering should only be done when the wine is well clear of isinglass as the agent will clog filters. Isinglass tends to give results brilliant wines, bright fruit and a smooth/round palate.
www.brsquared.org/wine/Articles/fining.htm www.brsquared.org/wine/Articles/fining.htm
Secondary effects of protein fining can be enhanced clarification and settling of wines, especially with white wines. Viognier is often a very tannic grape variety (as white grapes go, reds are naturally higher, of course) and isinglass fining is relatively common practice in its production.
www.winemakermag.com/stories/techniques/article/indices... www.winemakermag.com/stories/techniques/article/indices/12-clarityfiltration/400-is-it-possible-for-a-plastic-fermenter-to-impact-the-effectiveness-of-isinglass-as-a-fining-agent
fining agents used to make mead (honey wine): bentonite, gelatin, sparkolloïd, casein, kieselsol, silica, isinglass ... Yeast cells are negatively charged, so one adds positively charged particles (Sparkolloïd, gelatin, isinglass). When fining agents are added, mead should become more limpid and all the stuff in...
www.meadmadecomplicated.org/mead_making/chemicals/finin... www.meadmadecomplicated.org/mead_making/chemicals/fining_agents.html
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It is worth noting that for beer fining, Isinglass, a close relative of gelatin derived from fish swim bladder is most effective. This protein has an extremely high molecular weight and a pI of 4.5 to 4.8 (i.e. higher than the pH of beer).
www.gelatin.co.za/fining.htm www.gelatin.co.za/fining.htm
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