sathish_1707 Posted December 23, 2007 Share Posted December 23, 2007 Hi all.... This is sathish and i am dng my final yr engg in biotechnology. I would like to do project on extraction of polymers from plants, fruits or by some natural means.. So i selected four polymers(LIGNIN,PECTIN,STARCH,POLYLACTICACID). I searched everywhere and i dont find any good protocols/procedure for extraction of above polymers. So anyone can hlp me out to find procedures ffor extraction of above polymers.Any hlp wil b greatful.Thanks in advance Link to comment Share on other sites More sharing options...
thedarkshade Posted December 23, 2007 Share Posted December 23, 2007 Please be more polite and if possible type the complete words Link to comment Share on other sites More sharing options...
sathish_1707 Posted December 23, 2007 Author Share Posted December 23, 2007 Sorry... I am actually new to this forum. So i not aware of these things sir. Please forgive me this time. Link to comment Share on other sites More sharing options...
thedarkshade Posted December 23, 2007 Share Posted December 23, 2007 Sorry... I am actually new to this forum. So i not aware of these things sir. Please forgive me this time. Don't worry man, it's no big deal, just be a little more formal, nothing more! I'm not sure if this is what you're asking, but take a look at this: http://sriconsulting.com/SRIC/Public/NewsEventsArt/ACSBohlmann.pdf Link to comment Share on other sites More sharing options...
sathish_1707 Posted December 24, 2007 Author Share Posted December 24, 2007 Don't worry man, it's no big deal, just be a little more formal, nothing more! I'm not sure if this is what you're asking, but take a look at this: http://sriconsulting.com/SRIC/Public/NewsEventsArt/ACSBohlmann.pdf Actually i am looking for the extraction procedues of strach and some polymers. Anyway thanks for what u did... Link to comment Share on other sites More sharing options...
iNow Posted December 24, 2007 Share Posted December 24, 2007 Hi Sathish - I did not take any offense to your question. I'm not sure why darkshade did, but don't worry much about it. I do not know the answer to your question, but I'm confident that someone here will. Since it's the holidays for many of us, forum participation is down, and it's not as active as it usually is. If you're able to be patient and wait a few days, hopefully someone will respond with more useful information soon. Good luck. Link to comment Share on other sites More sharing options...
thedarkshade Posted December 24, 2007 Share Posted December 24, 2007 Hi Sathish - I did not take any offense to your question. I'm not sure why darkshade did, but don't worry much about it. I didn't man, but I just think that stuffs here just got to be a "little" more formal, that's all! Link to comment Share on other sites More sharing options...
sathish_1707 Posted December 25, 2007 Author Share Posted December 25, 2007 Hi Sathish - I did not take any offense to your question. I'm not sure why darkshade did, but don't worry much about it. I do not know the answer to your question, but I'm confident that someone here will. Since it's the holidays for many of us, forum participation is down, and it's not as active as it usually is. If you're able to be patient and wait a few days, hopefully someone will respond with more useful information soon. Good luck. Thank u for ur kind advice. I am waiting and i hope i will suceed. I am too searching for those things but not getting the exact procedures. Anyway thnx for ur great motivation and i believe i am in a right place for my queries. Link to comment Share on other sites More sharing options...
Ozone Posted December 26, 2007 Share Posted December 26, 2007 If you want the starch, you could: 1. finely divide the material 2. Boil the material in water; this degranulates the starch and renders it soluble. 3. Fractionally precipitate the starch from the water with ethanol (of some other suitable solvent). Alternatively, the liquor can be pressed from the material and re-boiled with s *small* amount of decolorizing carbon (Norit or equivalent) and filtered (buchner funnel over celite) prior to precipitation. There are other ways, but this one is rather inexpensive (particularly when compared to column chromatography over sephadex or analytical GPC). Oh yes, amylopectin (pectin) and amylose are components of "starch". Amylopectin is a highly branched compound whilst amylose is a tighly wound helical molecule. Of interest is that amylopectin is red when complexed with I2 and amylose is emerald green. Merry Christmas, O3 Link to comment Share on other sites More sharing options...
sathish_1707 Posted December 26, 2007 Author Share Posted December 26, 2007 If you want the starch, you could: 1. finely divide the material 2. Boil the material in water; this degranulates the starch and renders it soluble. 3. Fractionally precipitate the starch from the water with ethanol (of some other suitable solvent). Thank u very much. I think that might b useful for my exraction process. I wil try this method for extraction and wil tel u results in two r three days. Once again thank u. Link to comment Share on other sites More sharing options...
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