Comments on: Watch out for moldy sweet potatoes?!? http://www.scienceline.org/2007/12/15/watch-out-for-moldy-sweet-potatoes/ The Shortest Distance Between You and Science Sat, 20 Mar 2010 17:45:26 -0400 http://wordpress.org/?v=2.8.4 hourly 1 By: Mike http://www.scienceline.org/2007/12/15/watch-out-for-moldy-sweet-potatoes/comment-page-1/#comment-2238 Mike Wed, 08 Oct 2008 06:32:33 +0000 http://scienceline.org/2007/12/15/watch-out-for-moldy-sweet-potatoes/#comment-2238 I suggest you check out the link here that tells exactly why you SHOULD eat sweet potatoes skins. http://www.whfoods.com/genpage.php?tname=foodspice&dbid=64. "three times the antioxidant quantities found in the skin than in the flash of the sweet potatoe". I suggest you check out the link here that tells exactly why you SHOULD eat sweet potatoes skins.
http://www.whfoods.com/genpage.php?tname=foodspice&dbid=64.
“three times the antioxidant quantities found in the skin than in the flash of the sweet potatoe”.

]]> By: Louise http://www.scienceline.org/2007/12/15/watch-out-for-moldy-sweet-potatoes/comment-page-1/#comment-1247 Louise Sun, 23 Dec 2007 14:25:14 +0000 http://scienceline.org/2007/12/15/watch-out-for-moldy-sweet-potatoes/#comment-1247 Great article! I was always told as a child to eat the skins, but (rebellious me, I guess!) I didn't like them. And since I've done my own shopping, I have noticed discoloration, and have continued not eating the skins. Fascinating (and a bit frightening) to know what that discoloration can indicate. Many thanks!! Great article! I was always told as a child to eat the skins, but (rebellious me, I guess!) I didn’t like them. And since I’ve done my own shopping, I have noticed discoloration, and have continued not eating the skins. Fascinating (and a bit frightening) to know what that discoloration can indicate. Many thanks!!

]]> By: Victor http://www.scienceline.org/2007/12/15/watch-out-for-moldy-sweet-potatoes/comment-page-1/#comment-1245 Victor Sun, 23 Dec 2007 12:26:00 +0000 http://scienceline.org/2007/12/15/watch-out-for-moldy-sweet-potatoes/#comment-1245 In response to Ralph, the Japanese noted that the potato needed to be damaged in order to find the toxin: "Ipomeamarone 15-hydroxylase activity was not found in fresh tissue of sweet potato roots. However, the activity appeared and increased markedly in response to cut-injury." This comes from a paper titled "Properties of a Mixed Function Oxygenase Catalyzing Ipomeamarone 15-Hydroxylation in Microsomes from Cut-Injured and Ceratocystis fimbriata-Infected Sweet Potato Root Tissues" written by Masayuki Fujita, Kazuko Ôba, and Ikuzo Uritani from the Laboratory of Biochemistry, Faculty of Agriculture, Nagoya University, Chikusa, Nagoya 464, Japan, and published in the journal Plant Physiology. Great observation, Ralph. In response to Ralph, the Japanese noted that the potato needed to be damaged in order to find the toxin:

“Ipomeamarone 15-hydroxylase activity was not found in fresh tissue of sweet potato roots. However, the activity appeared and increased markedly in response to cut-injury.” This comes from a paper titled “Properties of a Mixed Function Oxygenase Catalyzing Ipomeamarone 15-Hydroxylation in Microsomes from Cut-Injured and Ceratocystis fimbriata-Infected Sweet Potato Root Tissues” written by Masayuki Fujita, Kazuko Ôba, and Ikuzo Uritani from the Laboratory of Biochemistry, Faculty of Agriculture, Nagoya University, Chikusa, Nagoya 464, Japan, and published in the journal Plant Physiology.

Great observation, Ralph.

]]> By: Ali http://www.scienceline.org/2007/12/15/watch-out-for-moldy-sweet-potatoes/comment-page-1/#comment-1238 Ali Wed, 19 Dec 2007 20:08:10 +0000 http://scienceline.org/2007/12/15/watch-out-for-moldy-sweet-potatoes/#comment-1238 I've always peeled my sweet potatoes, for reasons unknown to man (primal instinct? mom said to one day and I filed it away?). Strange, as I tend to enjoy normal potato skins in my food, and it would follow that potato skins that are delicious in one way would be good in another way, too...but thanks for saving my LIFE in case I ever was going to binge on sweet potatoes. Bagfuls. I’ve always peeled my sweet potatoes, for reasons unknown to man (primal instinct? mom said to one day and I filed it away?). Strange, as I tend to enjoy normal potato skins in my food, and it would follow that potato skins that are delicious in one way would be good in another way, too…but thanks for saving my LIFE in case I ever was going to binge on sweet potatoes. Bagfuls.

]]> By: Clara http://www.scienceline.org/2007/12/15/watch-out-for-moldy-sweet-potatoes/comment-page-1/#comment-1227 Clara Mon, 17 Dec 2007 17:31:05 +0000 http://scienceline.org/2007/12/15/watch-out-for-moldy-sweet-potatoes/#comment-1227 Interesting, especially since the skins are often served. Interesting, especially since the skins are often served.

]]> By: Susannah F. Locke http://www.scienceline.org/2007/12/15/watch-out-for-moldy-sweet-potatoes/comment-page-1/#comment-1226 Susannah F. Locke Mon, 17 Dec 2007 00:50:32 +0000 http://scienceline.org/2007/12/15/watch-out-for-moldy-sweet-potatoes/#comment-1226 As far as I can tell, it doesn't hold true for yams, which are an entirely different species altogether. Everything I've read has been "sweet potato, sweet potato, sweet potato." "Toxicants Occuring Naturally in Foods" mentions that yams don't make these chemicals when moldy, but they didn't include a citation for it. I don't even think I've ever eaten a true yam, though. As far as I can tell, it doesn’t hold true for yams, which are an entirely different species altogether. Everything I’ve read has been “sweet potato, sweet potato, sweet potato.”

“Toxicants Occuring Naturally in Foods” mentions that yams don’t make these chemicals when moldy, but they didn’t include a citation for it.

I don’t even think I’ve ever eaten a true yam, though.

]]> By: Ralph http://www.scienceline.org/2007/12/15/watch-out-for-moldy-sweet-potatoes/comment-page-1/#comment-1225 Ralph Sun, 16 Dec 2007 23:45:21 +0000 http://scienceline.org/2007/12/15/watch-out-for-moldy-sweet-potatoes/#comment-1225 Fascinating! I have noticed a bluish substance -- like bread mold? -- on broken ends of uncooked sweet potatoes. This confirms my instinct to trim it off. Fascinating! I have noticed a bluish substance — like bread mold? — on broken ends of uncooked sweet potatoes. This confirms my instinct to trim it off.

]]> By: Karina http://www.scienceline.org/2007/12/15/watch-out-for-moldy-sweet-potatoes/comment-page-1/#comment-1222 Karina Sun, 16 Dec 2007 20:03:32 +0000 http://scienceline.org/2007/12/15/watch-out-for-moldy-sweet-potatoes/#comment-1222 Does this hold true for yams too? Does this hold true for yams too?

]]> By: Marti http://www.scienceline.org/2007/12/15/watch-out-for-moldy-sweet-potatoes/comment-page-1/#comment-1221 Marti Sun, 16 Dec 2007 06:34:45 +0000 http://scienceline.org/2007/12/15/watch-out-for-moldy-sweet-potatoes/#comment-1221 Wow great article. I'd always wondered if eating potato skins were safe. Thanks for the amusing blog. Wow great article. I’d always wondered if eating potato skins were safe. Thanks for the amusing blog.

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