A few starch grains from a potato

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jimur
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A few starch grains from a potato

#1 Post by jimur » Sun Sep 13, 2020 11:02 am

Poor man's pol
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Last edited by jimur on Sun Sep 13, 2020 11:47 pm, edited 1 time in total.
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mrsonchus
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Re: A few starch cells from a potato

#2 Post by mrsonchus » Sun Sep 13, 2020 6:14 pm

Very nice image - what was the technique?
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jimur
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Re: A few starch grains from a potato

#3 Post by jimur » Mon Sep 14, 2020 1:08 am

Thanks for the kind words mrsonchus. I was actually disapointed with the image but I find them rather attractive for starch grains. :) Producing these is quite simple. Just slice a potato, brush the "juice" from the fresh cut surface onto a slide with a drop of water and you have them. Under normal brightfield the grains are oval like but as the water dries and under pol lighting the lines appear.
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Wes
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Re: A few starch grains from a potato

#4 Post by Wes » Mon Sep 14, 2020 7:05 am

Cool image.

You know you can insert a piece of clear plastic above the polarizer and below the specimen and you will produce some spectacular colors that would enhance the starch grains.
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