Re: Here's a pair of shades

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Posted by loans on February 15, 2005 at 15:48:44:

In reply to: Re: Here's a pair of shades posted by Pierre on February 6, 2005 at 20:33:47:

: : Lawsone is a red-orange dye molecule, and its present in henna.
: :
: : Tannins are a large group of molecules that are present in lawsone,
: : cassia obobvata, emblica officinalis, and ...... grapes, tea, wine,
: : chocolate, blackberries, lots of other things too
: :
: : Tannins are plant polyphenols. Their main characteristic is that they
: : bind and precipitate proteins. When they're in your hair gets tannin
: : rich moosh on it, the tannins bind the keratin protein strands and
: : strengthen them!
: :
: : If I understand correctly, lawsone is part of a tannin group.
:
: The chemical characteristic of tannin groups is that they have two or
: more =O or -OH groups next to each other on the phenol ring. Lawsone
: has -OH next to =O; its isomer juglone does not (the -OH is on the
: other phenol ring). So henna by itself dyes hair and stays there; walnut
: doesn't, unless the juglone has something else to keep it in the hair.
:
: Tannins consist of several tannin groups linked together either directly or
: with the aid of a sugar molecule. Do lawsone molecules link together like
: this? Can such a linkage hold a juglone molecule, even though it is not a
: tannin group?
:
: I hope this doesn't blind you even further...
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: : : Lawsone is a red-orange dye molecule, and its present in henna. : : : : : : Tannins are a large group of molecules that are present in lawsone, : : : cassia obobvata, emblica officinalis, and ...... grapes, tea, wine, : : : chocolate, blackberries, lots of other things too : : : : : : Tannins are plant polyphenols. Their main characteristic is that they : : : bind and precipitate proteins. When they're in your hair gets tannin : : : rich moosh on it, the tannins bind the keratin protein strands and : : : strengthen them! : : : : : : If I understand correctly, lawsone is part of a tannin group. : : : : The chemical characteristic of tannin groups is that they have two or : : more =O or -OH groups next to each other on the phenol ring. Lawsone : : has -OH next to =O; its isomer juglone does not (the -OH is on the : : other phenol ring). So henna by itself dyes hair and stays there; walnut : : doesn't, unless the juglone has something else to keep it in the hair. : : : : Tannins consist of several tannin groups linked together either directly or : : with the aid of a sugar molecule. Do lawsone molecules link together like : : this? Can such a linkage hold a juglone molecule, even though it is not a : : tannin group? : : : : I hope this doesn't blind you even further... : mntambernat.com Had a long talk with Leah, last night. http://credit-counseling.tambernat.com/credit-counseling.html credit counseling We commisserated re. money and dissatisfaction http://mortgage.tambernat.com/mortgage.html mortgage with the whole schema of "jobs", in general, http://loan.tambernat.com/loan.html loan online and how, of course, we'd so much rather http://refinance.tambernat.com/refinance.html refinance free be doing art full time, and filling our http://refinancing.tambernat.com/refinancing.html refinancing direct days with something of genuine interest refinancing and of genuine value. For me, I feel myself http://online-loan.tambernat.com/online-loan.html online loan placing more and more importance on TIME, http://refinancing.tambernat.com/refinancing.html refinancing on freedom within that time, as opposed http://debt-consolidation.tambernat.com/debt-consolidation.html debt consolidation tambernat.comnm
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