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Date Posted: 20:50:45 01/27/06 Fri
Author: Nnadi Helen Oluchi
Subject: Re Methods for plant extaction ,any common known plant
In reply to: Nguyen 's message, "Methods for Plant extraction" on 01:13:43 10/31/03 Fri

>Hi,
i was given a project on the extraction of dyes from a common known plant, eg cudbearr.Now i dont know how to go about it.as in method of extaction,fermentetion,chemicals towork with,and most inportantly,the local name with which to identify the plant.
Any body out there to help?
thanks
>
>Hi!
>
>I am quite new in plant field, I am going to extract
>medicine plants as following steps:
>Partition procedures
>
>1. Plant medicine
>2. Dry completely
>3. Grinding
>4. Methanol extraction
>5. Filtration using Watmann No. 5 filter paper
>5. Concentration with rotary evaporator
>6. Suspend in distilled water
>7. Partitioning
> 1) partition with hexane
> 2) partition with n-butanol
> 3) then remain water extract
>
>I have a problem with butanol-partition. After
>partitioned with hexane, extracts (without evaporated)
>are added with butanol, but there is no 2 layer
>between butanol and water layer.
>
>Could you give me a hint? and give me a link to learn
>basic method in Plant Extraction?
>
>Thanks

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