What is Acrylamide?

Wastewater TreatmentProcessing

Crude Oil Processing Food & Coffee

(Cooked Carbohydrates)

Cigarrete Smoke Paper Production

A WHO Group 2A carcinogen and toxic chemical found in:

In 2002, researchers discovered that acrylamide is a

by-product of heating asparagine, an amino acid naturally found in coffee and

carbohydrate-rich food, including bread, toast, potato

chips, fries, crackers, breakfast cereals, baby food, and breaded meat products.

Once inside the body, acrylamide is converted to glycidamide, a

compound that is more carcinogenic than acrylamide.

Why is Acrylamide in Food?

Acrylamide Threatens Health

Damages DNA and neural and reproductive systems. DNA damage is the main driver of

tumor formation (cancer).

Is associated with risk of developing kidney,

ovarian, and endometrial cancers in

32 scientific publications covering

56K patients.

Reduces baby birth weight and head

circumference, which are key negative

indicators of future health and development

How Much Acrylamide in Food?

Drinking Water

Cosmetics Carbohydrate-rich Food* US Environmental Protection Agency ** European Union

Computer vision based analysis of potato chips. A tool for rapid detection of acrylamide level.

An Approach to Detect

Computer VisionPowerful Rapid Non-contact

Analytical MethodsLaborious Costly Can’t adopt

easily

Surface color correlates withAcrylamide level

It was experimentally observed that the yellowish brown colored potato chips had the highest level of acrylamide.

BRIGHT YELLOWYELLOWIS

H BROWN

DARK BROWN

2 mm

150oC

• 3, 5, 8, 10, 15

170oC

• 3, 5, 8

190oC

• 1, 3

Images were captured with a color digital camera (Hewlett Packard model R507) at its maximum resolution (204861536 pixels).

Saved as JPEGWithout compression

Training Potato Chips

Image Acquisition

Bright Yellow(Region I)

0.820

0.715

0.280

Yellowish Brown(Region II)

0.755

0.465

0.006

Dark Brown(Region III)

0.360

0.130

0.088

Processing Technique

PIXEL SET III

PIXEL SET II

PIXEL SET I

Testing Image

Semi Automatic Segmentation

Vector Quantization

Segmented Image

Mean Representativ

e values

New Image

Vector Quantization

im_seq = imread(‘image_of_interest’);

im_seq = im2double(im_seq);

u=[0.820 0.715 0.280; // bright yellow 0.755 0.465 0.006; // yellowish brown 0.360 0.130 0.088; // dark brown 0.95 0.95 0.95];

Apply median Filter [3 3]

seg_im = VectorQuantize(im_seq,u);

Results and Discussion

Results and Discussion

Results and Discussion

We thank Scientific and Technological Research Council of Turkey (Project no. TOVAG COST 927–2) and Turkish Academy of Sciences (TUBA-GEBIP Study Grant) for financial support, and Ankara Test and Analysis Laboratory for LC-MS analyses.Research ArticleComputer vision based analysis of potato chips – A tool for rapid detection of acrylamide level1.Vural Gökmen, 2.Hamide Z. Senyuva2,3.Berkan Dülek3 and4.Enis Çetin3

Article first published online: 17 AUG 2006DOI: 10.1002/mnfr.200500257