Comments on: HPLC analysis of xanthones in mangosteen fruit http://www.justchromatography.com/hplc/hplc-xanthones-mangosteen Everything about Chromatography and Analytical Chemistry Fri, 10 Sep 2010 20:22:59 +0000 http://wordpress.org/?v=2.3 By: cecile cabanag http://www.justchromatography.com/hplc/hplc-xanthones-mangosteen#comment-831 cecile cabanag Tue, 03 Aug 2010 15:30:49 +0000 http://www.justchromatography.com/hplc/hplc-xanthones-mangosteen#comment-831 hi. why do you consider acetone:water (80:20) as the best solvent for mangosteen periicarp extraction? why is it better than ethanol? we are planning to test the pericarp's extract against a certain bacteria, how can we purify further the extract? we dont have plans to use chromatography in this experiment. thank you hi. why do you consider acetone:water (80:20) as the best solvent for mangosteen periicarp extraction? why is it better than ethanol? we are planning to test the pericarp’s extract against a certain bacteria, how can we purify further the extract? we dont have plans to use chromatography in this experiment. thank you

]]> By: randoft http://www.justchromatography.com/hplc/hplc-xanthones-mangosteen#comment-581 randoft Mon, 29 Sep 2008 16:45:09 +0000 http://www.justchromatography.com/hplc/hplc-xanthones-mangosteen#comment-581 My final year project is almost similar with your title here...extraction of xanthone and analyze using GC-MS....not HPLC...i wan to ask u some questions: !) can it be using GC-MS to analyze xanthone? 2) May i know what is the extraction process and crude ectract process? includes the solvents and methods. 3) what is the m/z ratio of xanthone in MS? 4) The extraction method of xanthone for another fruit is it similar to mangosteen? My final year project is almost similar with your title here…extraction of xanthone and analyze using GC-MS….not HPLC…i wan to ask u some questions:
!) can it be using GC-MS to analyze xanthone?
2) May i know what is the extraction process and crude ectract process? includes the solvents and methods.
3) what is the m/z ratio of xanthone in MS?
4) The extraction method of xanthone for another fruit is it similar to mangosteen?

]]> By: Chews4Health Leaders http://www.justchromatography.com/hplc/hplc-xanthones-mangosteen#comment-564 Chews4Health Leaders Sun, 24 Aug 2008 21:33:57 +0000 http://www.justchromatography.com/hplc/hplc-xanthones-mangosteen#comment-564 Fruits and berries offer tremendous health enhancing qualities and contain hundreds of naturally occurring vitamins, minerals, antioxidants, amino acids, enzymes, essential fatty acids, fiber & phytonutrients. The 4 ā??Super Fruitsā? contained in Chews-4-Health are considered by many experts to be the most nutrient rich fruits the world has to offer. Our carefully selected super-fruit complex gives you the power of all 4 in one supplement. Fruits and berries offer tremendous health enhancing qualities and contain hundreds of naturally occurring vitamins, minerals, antioxidants, amino acids, enzymes, essential fatty acids, fiber & phytonutrients. The 4 ā??Super Fruitsā? contained in Chews-4-Health are considered by many experts to be the most nutrient rich fruits the world has to offer. Our carefully selected super-fruit complex gives you the power of all 4 in one supplement.

]]> By: Julie Tan http://www.justchromatography.com/hplc/hplc-xanthones-mangosteen#comment-526 Julie Tan Tue, 08 Apr 2008 08:32:49 +0000 http://www.justchromatography.com/hplc/hplc-xanthones-mangosteen#comment-526 in the absence of HPLC how can i isolate and extract xnathone, even though crude xanthone only. in the absence of HPLC how can i isolate and extract xnathone, even though crude xanthone only.

]]> By: Ice Mah http://www.justchromatography.com/hplc/hplc-xanthones-mangosteen#comment-516 Ice Mah Tue, 15 Jan 2008 02:35:18 +0000 http://www.justchromatography.com/hplc/hplc-xanthones-mangosteen#comment-516 I'm very interested in your HPLC analysis of xanthone in mangosteen. Can I ask you some questions? 1. What is the extraction process and crude ectract process? includes the solvents and methods. 2. what is the purification process? 3. What types of adsorbent you are using? What is the suitable adsorbent for purificanion of phenolic compounds in mangosteen? 4. What is the mobile phase you are using? and the sequence of solvent being used? 5. What is the physical indicator to justify that elution proces is completed? 6. Im your opinion, what is the suitable type of elution solvent commonly used ? 7. normally, eluants are in mass or volume form?\ Hope to hear from you soon. Thank you for you attention. you can directly reply to my e-mail icexxm@hotmail.com. I’m very interested in your HPLC analysis of xanthone in mangosteen. Can I ask you some questions?
1. What is the extraction process and crude ectract process? includes the solvents and methods.
2. what is the purification process?
3. What types of adsorbent you are using?
What is the suitable adsorbent for purificanion of phenolic compounds in mangosteen?
4. What is the mobile phase you are using? and the sequence of solvent being used?
5. What is the physical indicator to justify that elution proces is completed?
6. Im your opinion, what is the suitable type of elution solvent commonly used ?
7. normally, eluants are in mass or volume form?\

Hope to hear from you soon. Thank you for you attention. you can directly reply to my e-mail icexxm@hotmail.com.

]]> By: Zulu http://www.justchromatography.com/hplc/hplc-xanthones-mangosteen#comment-13 Zulu Sat, 28 Apr 2007 23:04:34 +0000 http://www.justchromatography.com/hplc/hplc-xanthones-mangosteen#comment-13 I've seen this fruit in market when I was in Thailand but never got around to try it. Now after your review I might have to next time I go. I’ve seen this fruit in market when I was in Thailand but never got around to try it. Now after your review I might have to next time I go.

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