NIR spectrometer for fruits and vegetables,with reliable results on

Apple pulp, Onion, Peach, Grape, Tomato, Melon, Banana and Orange

(Others to be tested)

We have designed this simple and inexpensive Near Infrared Spectrometer

mainly for fruits and vegetables maturity testing.

Our instrument provides 2 values in the visible as well : 610 and 680 nm (Which correspond of red edge of Chlorophyll) The values in the Near Infrared are given at 730, 760, 760, 810 and 860 nm : It is the very near infrared, which is suitable for fruits maturity testing. The sensor provides a 20nm of full-width half-max detection, which is a quite good accuracy - Sensor channels curves : - The spectrometry board comes from the USA, and has a very high reliability level (Look at the smooth curves above :))
Instruments for Life

Scientific results (Till now..)

- Tomatoes : The curve that gives the lowest value at 680 nm corresponds to a green tomato (You see that the curve profile is different The 3 other curves correspond to red tomatoes at different maturity stages - You can see that the curves are parallel, and values become higher as maturity increases - Apples pulp (Golden) : The values at 680 nm (Chlorophyll red edge) are exactly correlated to the maturity on golden apple pulp - Kiwi pulp : - External researches : - To 680nm corresponds the red edge of Chlorophyll, which is an essential factor for fruits maturity (Chlorophyll regression). - Dr Delwiche and Al have worked a lot on color and maturity of peaches, they have found a correlation between a factor corresponding to the reflectance at 670nm divided by the reflectance at 800nm and the peach maturity.  On our machine, it corresponds to 680nm and 810nm (As the width of acceptance for each value is 20nm) - The team of Dr Kawano in Japan has found a correlation between onion maturity, and values in infrared around 860nm - As shown on the graph above, the values measured on apple pulp (Golden Reinders and Gala Galaxy) can be correlated to the maturity between 730 nm and 860 nm (With our machine : 730, 760, 810 and 860 nm) - Please note that the tests we made ourselves on Golden apples was made on very mature apples (In february) - That’s the reason why the values between a730 and 860 nm are not significant. But values at 680 nm give very good results in this case - The wavelength of 860 nm has been used with success on Melon flesh by Dr Dull- Dr Dull has obtained very good results on Oranges, using 730, 760 and 860 nm - Study of Dr Guidetti on Grapes (Nebbiolo Type) shows a peak at 860 nm, which can be analyzed. there are peaks at 680 nm and 730 nm as well that can help to differentiate the fruits (Correctly classified samples around 80%) :
NIR spectrophotometer for fruits
- Our Spectrometer works powered by a computer, and comes with a software for Windows Vista, XP, 7, 8, 8.1 and 10 - The software displays curves, and you can export the data to Excel, Word or Xml - You can export the graph as well to a picture format (Bitmap)
Near Infrared curve for tomatoes maturity testing by agrosta Golden apple pulp testing with Agrosta spectrometer

680 € Fedex/DHL Freight included worldwide

Limited quantity available
© Made by Agrosta 2018 lak@agrosta.org
© Made by Agrosta 2018 lak@agrosta.org

NIR spectrometer for fruits and

vegetables,with reliable results on

Apple pulp, Onion, Peach, Grape,

Tomato, Melon, Banana and Orange

(Others to be tested)

We have designed this simple and inexpensive Near Infrared

Spectrometer mainly for fruits and vegetables maturity testing.

Our instrument provides 2 values in the visible as well : 610 and 680 nm (Which correspond of red edge of Chlorophyll) The values in the Near Infrared are given at 730, 760, 760, 810 and 860 nm : It is the very near infrared, which is suitable for fruits maturity testing. The sensor provides a 20nm of full-width half-max detection, which is a quite good accuracy - Sensor channels curves : - The spectrometry board comes from the USA, and has a very high reliability level (Look at the smooth curves above :))

Scientific results

- To 680nm corresponds the red edge of Chlorophyll, which is an essential factor for fruits maturity (Chlorophyll regression). - Dr Delwiche and Al have worked a lot on color and maturity of peaches, they have found a correlation between a factor corresponding to the reflectance at 670nm divided by the reflectance at 800nm and the peach maturity.  On our machine, it corresponds to 680nm and 810nm (As the width of acceptance for each value is 20nm) - The team of Dr Kawano in Japan has found a correlation between onion maturity,  and values in infrared around 860nm - As shown on the graph above, the values measured on apple flesh can be correlated to the maturity between 730 nm and 860 nm (With our machine : 730, 760, 810 and 860 nm) - The wavelength of 860 nm has been used with success on Melon flesh by Dr Dull - Dr Dull has obtained very good results on Oranges, using 730, 760 and 860 nm - Study of Dr Guidetti on Grapes (Nebbiolo Type) shows a peak at 860 nm, which can be analyzed. there are peaks at 680 nm and 730 nm as well that can help to differentiate the fruits (Correctly classified samples around 80%) : - The analyzis in the visible at 680 nm (Chlorophyll) gives good results on tomato maturity measurement :
NIR spectrophotometer for fruits
- Our Spectrometer works powered by a computer, and comes with a software for Windows Vista, XP, 7, 8, 8.1 and 10 - The software displays curves, and you can export the data to Excel, Word or Xml - You can export the graph as well to a picture format (Bitmap)

680 € Fedex/DHL Freight included worldwide

Limited quantity available