Talk:Saccharomyces cerevisiae

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Contents 1 Redirects, real and imagined 2 Classical and ancient 3 Merge with yeast 4 Better suggestion: Merge with Yeast (baking) 5 The 'Human disease' section is unclear 6 Temperature

[edit] Redirects, real and imagined

The following pages might redirect to this one:

• Brewer's yeast, Brewer's Yeast
• Brewers yeast, Brewers Yeast
• Brewers' yeast, Brewers' Yeast
• Baker's yeast, Baker's Yeast
• Bakers yeast, Bakers Yeast
• Bakers' yeast, Bakers' Yeast
• Budding yeast, Budding Yeast

You can see which ones exist already (the italicized ones, as I type this). The titles in bold used to be stub articles. Brewer's Yeast was a copyvio that was tagged but apparently never listed on Wikipedia:Copyright problems. I guess that page should be deleted and the redirect recreated? Baker's yeast was a one-liner; see its history if you're really interested. - dcljr 20:17, 31 Jan 2005 (UTC)

[edit] Classical and ancient

I changed "classical times" to "ancient times" again. According to Beer#History, beer is definitely known from about 3500 or 4000 B.C., long before any time called "classical" (maybe 1000 or 500 B.C.) If anyone wants to change it back, please give your reasons, as I have. —JerryFriedman 16:46, 24 October 2005 (UTC)

[edit] Merge with yeast

This is a much more extensive article than the current one on yeast, and there don't appear to be articles on other types of yeast. Saccharomyces cerevisiae is commonly referred to simply as "yeast," and I suspect that most people who type "yeast" in the Go box are trying to find this article. Therefore, I suggest integrating this page's information on the yeast page, and making this page a redirect. --LostLeviathan 19:31, 18 May 2006 (UTC)

• Correction: There are articles on other yeast species (I came across Brettanomyces), but yeast-related articles are very scattered. Why are there separate articles on Saccharomyces cerevisiae and brewer's yeast, for instance? —The preceding unsigned comment was added by LostLeviathan (talk • contribs) .

• "Saccharomyces cerevisiae" should not be merged with Yeast, because there are many different types of yeast. Brewer's yeast and Baker's yeast, however, are simply common names for S. cerevisiae and should probably be merged. —Keenan Pepper 22:45, 18 May 2006 (UTC)

• Well, maybe not Brewer's yeast, but definitely Yeast (baking). —Keenan Pepper 22:46, 18 May 2006 (UTC)

• "Yeast" is a growth form of fungi, and fungi that commonly grow as yeasts (including Candida albicans and Saccharomyces) can under certain conditions grow as filaments instead.--Curtis Clark 04:00, 19 May 2006 (UTC)

• There are over 600 yeast species. Saccharomyces cerevisiae is a yeast species, just like gorilla is a mammalian species. You would not merge gorilla with mammal! I suggest the yeast article be expanded instead. Definately no merge. Please also see Brettanomyces, Candida, Pichia pastoris, Saccharomyces uvarum, Schizosaccharomyces pombe and Zygosaccharomyces for a few of Wikipedia's yeast articles. ◄§ĉҺɑʀκs► 14:42, 19 May 2006 (UTC)
• No merge. --Abdull 10:34, 21 May 2006 (UTC)

[edit] Better suggestion: Merge with Yeast (baking)

Saccharomyces cerevisiae should not be merged with Yeast, because there are many different kinds of yeast. Yeast (baking), however, is unquestionably the same thing. It even says "known as Saccharomyces cerevisiae". Any objections to merging? —Keenan Pepper 16:58, 27 May 2006 (UTC)

I think it would make more sense to remove the non-baking information from Yeast (baking), and link each article from the other. Someone wanting to know about bakers' yeast will get lost in the detail of the Saccharomyces cerevisiae article, and someone interested in Saccharomyces cerevisiae may be more interested in beer or genomics than bread.--Curtis Clark 22:38, 27 May 2006 (UTC)

That's certainly a possibility, but let me point out that in a well-organized article, it should be easy to find a specific aspect of the subject. There would certainly be subsections about yeast's roles in baking and brewing. —Keenan Pepper 23:12, 27 May 2006 (UTC)

There are plenty of counterexamples, usually when (1) a single article would be too long, or (2) there are aspects that are of interest to different audiences. Considering the importance of Saccharomyces cerevisiae to biologists, a single article would need that name. Yeast (baking) could redirect to the subsection about the use of the species in baking. I'd have no objection to this.--Curtis Clark 01:21, 28 May 2006 (UTC)

Agreed. S cerevesiae is a very important topic and needs its own article. The various applications of yeast probably necessitate a separate article. Garrettcobb 00:04, 4 June 2006 (UTC)

[edit] The 'Human disease' section is unclear

Human disease Saccharomyces cerevisiae can cause disease in humans. In particular, it is marketed as a probiotic supplement (Ultralevura®) for the treatment of Clostridium difficile colitis. Unfortunately, its use can cause fungaemia in critically ill patients.[1]

The first two sentences don't make sense together. I presume it's supposed to read 'Saccharomyces cerevisiae can _cure_ disease in humans.', or it just needs to be re-written. —The preceding unsigned comment was added by Danregan (talk • contribs) 17:10, 16 December 2006 (UTC).

Although I agree it does need better wording, they do mean "cause" disease. The probiotic supplement Ultralevura is used for the treatment of Clostridium difficile colitis. Using Ultralevura can cause fungaemia in critically ill patients. I'll try to clean it up.

[edit] Temperature

What is the optimum temperature for the growth of this species? Mrug² 21:16, 11 March 2007 (UTC)

Sorry, I should have rephrased that. I'm doing a chemistry project to do with the production of CO₂ in fermentation of sucrose by yeast. What is the optimum temperature forr this reaction to take place? Mrug² 17:59, 20 March 2007 (UTC)