Talk:Yeast extract

B12
Yeast extract is not a natural source of vitamin B12 but is recommended as a source of vitamin B12. The primary source of Vitamin B12 are supposedly animal byproducts but the article recommends that vegans consume yeast extract that has been enriched with vitamin B12, although the source for this would be very likely animal byproducts. While this is not logically impossible it doesn't make too much sense to phrase and present it this way. I also doubt the factual accuracy. --Fasten 14:05, 15 December 2005 (UTC)


 * Red Star brand nutritional yeast with B12 is relied on by vegans, and the B12, as I believe is stated by the company, does not come from an animal source, but from bacteria. Similarly, the Pure Advantage B12 (methylcobalamin) spray is made from bacteria, so the company states.  Badagnani 05:42, 22 November 2006 (UTC)

Hydrolyzed yeast
There's no article for hydrolyzed yeast. What's the difference between hydrolyzed yeast and autolyzed yeast? Badagnani 05:38, 22 November 2006 (UTC)


 * Autolysis refers to a cell that lyses itself, hence the word auto. Hyrolysis referes to something that was lysed by water, hence the word hydro.  Hydrolysis is a process that occurs to many complex molecules, such as sugars, being broken down within the body.  Mandalynn 21:13, 26 November 2006 (UTC)

Okay, let's create articles for these things, then. Would you like to participate? I don't know much about the subject but these substances are very widely used as food ingredients and I believe deserve articles. The article at torula, for example, remains a stub (presumably due to nobody being interested to add more) although torula yeast is also used widely in foods. Badagnani 21:16, 26 November 2006 (UTC)


 * There is an article about hydrolysis already. Hydrolyzed yeast is a moot point.  Hydrolysis not necessarily related to autolysis in any way. I think you were just confused by the fact they both have lysis in the word.  Lysis is just refering to breaking apart.  Mandalynn 21:23, 26 November 2006 (UTC)

Hydrolized yeast is a widely used food additive that is little understood (at least much less than monosodium glutamate, which for which the various yeast extracts are used as substitutes), and thus deserving of coverage at Wikipedia. I don't see that there is any significant discussion of this food additive at the article you directed me to. Thus, I don't agree with you that the detailed coverage of either the food ingredient hydrolyzed yeast or autolyzed yeast at Wikipedia is in any way moot. Thanks anyway. Badagnani 21:27, 26 November 2006 (UTC)

Microbial growth media
This article needs expansion to cover the use of YE as an ingredient in microbial growth media. ike9898 (talk) 19:31, 1 April 2008 (UTC)

The difference between brewer's Yeast Extract and baker's Yeast Extract?
Recently I noticed that there are two kinds of yeast extract, brewer's and baker's. Would somebody like to talk about the difference between them? I am likely to use it as culture media. —Preceding unsigned comment added by Edooo (talk • contribs) 04:43, 2 April 2008 (UTC)

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Controversy
MSG nor Glutamate have been confirmed to be toxic. Bunch of crazy tinfoil hat wearing tripe in this entire section and not one citation much less any credible sources of information. Throw in "MAJOR" concern, quotes around 'all natural' (yeast is natural), 'EXPLICIT' labeling, 'SUBVERSIVE' move and other vague fear mongering terms and you've got a bonafide conspiracy theory. The person who wrote this seems to also have a fundamental lack of understanding of biochemistry as well, since glutamate is produce by our body in abundance and we're not dead. — Preceding unsigned comment added by Gluske (talk • contribs) 13:16, 6 November 2012 (UTC)

To add to this, yeast definitely (not possibly) has glutamate/glutamic acid in it, everything does. It's even produced in human cells to create proteins (it's an amino acid). — Preceding unsigned comment added by 128.189.210.237 (talk) 17:14, 10 January 2013 (UTC)


 * I also was surprised to see this section, especially with a link to a site which does not seem to be a realiable source. Probably that a link to a reputed article discussing an existing controversy would be fine, without adding any opinions or conclusions.  This would probably also render the section useless, as it could be included in the main article prose...  76.10.128.192 (talk) 01:59, 20 February 2014 (UTC)


 * I have replaced the controversy section by a short sentence at the end of the lead. 76.10.128.192 (talk) 23:57, 27 March 2014 (UTC)
 * I forgot to mention that what convinced me to be bold and do this was the reading of glutamic acid, monosodium glutamate, Coatrack and Neutral_point_of_view, and that other readers also discussed their disaproval with the section on this talk page. 76.10.128.192 (talk) 00:13, 28 March 2014 (UTC)

Marmite's reference to Liebig

Marmite claims they got the idea to produce a product based on yeast extract on Justus Liebig's research findings. Is there any evidence for their assertion? Did Justus Liebig really develop a product based on yeast extracts? Is there any publication by him or contemporaries as proof? — Preceding unsigned comment added by Rudolf Hans Guthier (talk • contribs) 22:17, 20 January 2018 (UTC)

Vitam-R section
It is really quite inconsistent for this page to include a sub-section on Vitam-R when the other examples of yeast extract spreads have separate pages, (some of which have around the same amount or less information than the Vitam-R section). I propose Vitam-R should have a separate page or some of the other examples, particularly: Aussiemite, Promite and Cenovis, should be included as subsections in this yeast extract page. — Preceding unsigned comment added by Khelderb (talk • contribs) 17:42, 15 January 2019 (UTC)
 * Agreed. I started a Vitam-R page, as it was the only one of the major yeast extracts not to have its own article, but within minutes it was proposed for deletion. Moving the text here was the result of the discussion. I agree, every major yeast product should be listed here, or an article on Vitam-R (and the other names it's known under) should be reconsidered. - Pro hib it O ni o ns (T) 13:22, 30 May 2019 (UTC)

A Commons file used on this page has been nominated for speedy deletion
The following Wikimedia Commons file used on this page has been nominated for speedy deletion: You can see the reason for deletion at the file description page linked above. —Community Tech bot (talk) 18:23, 25 June 2019 (UTC)
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Umami nucleotides
There’s a fairly conspicuous lack of references to nucleotides in this article’s explanation of the flavor of yeast extract. Someone (hopefully me) should fix that. PMID: 36474327 looks promising, but never trust what i type on a phone. Artoria2e5 🌉 09:26, 30 May 2024 (UTC)