Comments on: The Taste of Science [Science Tattoo] http://blogs.discovermagazine.com/loom/2010/06/12/the-taste-of-science-science-tattoo/ A blog about life, past and future. Written by DISCOVER contributing editor and columnist Carl Zimmer. Sat, 26 May 2012 01:25:59 +0000 hourly 1 http://wordpress.org/?v=3.2.1 By: Hey, Is That Umami On Your Sleeve, Or Are You Just Glad To See Me? « Shut Up Foodies Coming Soon! http://blogs.discovermagazine.com/loom/2010/06/12/the-taste-of-science-science-tattoo/comment-page-1/#comment-33531 Hey, Is That Umami On Your Sleeve, Or Are You Just Glad To See Me? « Shut Up Foodies Coming Soon! Tue, 15 Jun 2010 19:34:51 +0000 http://blogs.discovermagazine.com/loom/?p=2742#comment-33531 [...] the arm of “Ariel,” who wrote in to Discovery magazine’s Science Tattoo Emporium: “This is the molecular representation [...] [...] the arm of “Ariel,” who wrote in to Discovery magazine’s Science Tattoo Emporium: “This is the molecular representation [...]

]]> By: wgc http://blogs.discovermagazine.com/loom/2010/06/12/the-taste-of-science-science-tattoo/comment-page-1/#comment-33448 wgc Mon, 14 Jun 2010 23:55:50 +0000 http://blogs.discovermagazine.com/loom/?p=2742#comment-33448 Ouch. This compound does not exist! At physiological pH the NH2 group should be NH3+ and both of the COOH groups should be COO-. In order to get the carboxyl groups to the structure drawn you need to get the pH to below about 2. And, then there will still be a NH3+ on the molecule. Likewise, to get to the NH2 form by raising the pH to 10 or above will leave the molecule withe two COO- groups. Ouch.

This compound does not exist!

At physiological pH the NH2 group should be NH3+ and both of the COOH groups should be COO-. In order to get the carboxyl groups to the structure drawn you need to get the pH to below about 2. And, then there will still be a NH3+ on the molecule.

Likewise, to get to the NH2 form by raising the pH to 10 or above will leave the molecule withe two COO- groups.

]]> By: Kris http://blogs.discovermagazine.com/loom/2010/06/12/the-taste-of-science-science-tattoo/comment-page-1/#comment-33326 Kris Sun, 13 Jun 2010 16:53:04 +0000 http://blogs.discovermagazine.com/loom/?p=2742#comment-33326 Also the reason Mono-Sodium Glutamate (MSG) makes things taste stronger. I've always wondered if ingesting large amounts of MSG has neurological effects as the glutamate is more readily absorbed as opposed to the body having to do the chore of ripping apart the covalent bonds in meat peptides. I'm sure there have been studies done but never a clear explanation of the effects of the G in MSG as it is one of the most ubiquitous neurotransmitters. Also the reason Mono-Sodium Glutamate (MSG) makes things taste stronger. I’ve always wondered if ingesting large amounts of MSG has neurological effects as the glutamate is more readily absorbed as opposed to the body having to do the chore of ripping apart the covalent bonds in meat peptides. I’m sure there have been studies done but never a clear explanation of the effects of the G in MSG as it is one of the most ubiquitous neurotransmitters.

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