So under a microscope, today's tuna has visible bits of plastic in the meat. In this video they plop tuna onto a slide. But how would they prepare the slide? I assume they'd press/extrude a tube and then thin slice.
https://www.youtube.com/watch?v=Bwoma6Btu2Y
So how do you prep a tuna slide?
So how do you prep a tuna slide?
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Re: So how do you prep a tuna slide?
Thats a cool channel that one can easily slip into binge watching.
They use a well slide in this section but I suppose if you want to do this properly i.e. quantitatively I'd suggest you hydrolyse the biological material with hydrochloric acid, then centrifuge to collect the plastic bits and stain with Nile red followed by fluorescence microscopy.
They use a well slide in this section but I suppose if you want to do this properly i.e. quantitatively I'd suggest you hydrolyse the biological material with hydrochloric acid, then centrifuge to collect the plastic bits and stain with Nile red followed by fluorescence microscopy.
Zeiss Photomicroscope III BF/DF/Pol/Ph/DIC/FL/Jamin-Lebedeff
Youtube channel
Youtube channel
Re: So how do you prep a tuna slide?
I don't believe plastic can get into the flesh of fish or other animals and show up as filaments. They would need to be digested at a molecular level and you would never see strands of plastic in the flesh. Most likely it may have been in the stomach or other contaminants while processing.
Re: So how do you prep a tuna slide?
Yeah, you're right. I'm assuming this is a packaging issue, or a quality issue as to how the tuna meat is processed meaning part of fish digestive track got into the meat grinding process.Charles wrote: ↑Fri Mar 26, 2021 2:40 pmI don't believe plastic can get into the flesh of fish or other animals and show up as filaments. They would need to be digested at a molecular level and you would never see strands of plastic in the flesh. Most likely it may have been in the stomach or other contaminants while processing.