Question: Quantifying Phytonutrients using a Spectrometer, Possible?

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zayas asked on December 26, 2017 15:38
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As of 2017 there are several consumer hand held Refractometers/Spectrometers/(Lasers) available working in conjunction with SmartPhones providing basic Brix Data that elude to taste/quality of fruit or vegetables....utilizing similar technology, would it be possible to extrapolate the approximate value of Phytonutrients in Fruit/Vegetables as well?

What reference data would be required to accurately acquire such data from said subject?

Would the initial reference data need to be acquired using standard lab techniques?

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2 Comments

  
mintymac 2 months ago

Im thinking that this could be possible using good reference data and good samples along with machine learning. I could be delusional but it's worth some thought.


  
Ag8n 2 months ago

Well, exactly what approach are you thinking of? Let's see if the already tried can be eliminated and maybe make it easier to make progress.

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2 Answers

Ag8n 7 months ago

Maybe. It depends on the chromophores present, the assay method used, and a bunch of other factors. And that's before you talk about the instrument.

Refractometers are usually used to measure sugar ( often present in the % range). If you nutrients fall in this range, a refractometer is an option.

It's not well known, but blood analyzers were basically single beam spectrometers, but with lots of bells and whistles added. Heck, maybe some still are.

jht001 6 months ago

Here is an article from Ohio State University Extension on using Brix to measure vegetable quality Artice link

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