High fructose corn syrup production

Nutrition and Health   >   What is high-fructose corn syrup?   >   High fructose corn syrup production

In 1957, HFCS (High-fructose corn syrup) was first introduced by Earl R. Kooi and Richard O. Marshall. However they could not achieve successful viable large scale production.

In 1965-1970, at Agency of Industrial Science and Technology of Ministry of International Trade and Industry of Japan, Dr. Y. Takasaki created the commercial production process for high-fructose corn syrup.

High fructose corn syrup production process

Corn is milled to get cornstarch. Then the cornstarch is treated with enzyme alpha-amylase for production of oligosaccharides ( with short chains of sugar). Oligosaccharides are broken down into glucose by the enzyme glucoamylase produced by the Aspergillus fungus in the fermentation vessel.

Maize kernels
Maize kernels

Another enzyme, xylose isomerase (also called aka glucose isomerase) converts glucose into a mixture of fructose and glucose at 42% and 50% respectively. The enzymes alpha-amylase and glucoamylase are inexpensive and are added to the corn slurry directly during production of syrup of high concentration.

However the enzyme xylose isomerase being expensive is packed in columns and sugar slurry is passed over it for the enzymatic reaction for production of syrup of high concentration. The xylose isomerase is reused repeatedly till its activity is lost.

D-Fructose vs. D-Glucose structural formulae
D-Fructose vs. D-Glucose structural formulae

HFCS 42 produced thus is purified and enriched by liquid chromatography step to obtain HFCS 90 with 90% fructose content. By adding HFCS 42 and HFCS 90 in appropriate ratios High-fructose corn syrup 55 in formulated.

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1.Image source: https://en.wikipedia.org/wiki/File:Ab_food_06.jpg
Image author: Andrew Butko
Image license: https://creativecommons.org/licenses/by-sa/3.0/deed.en
2.Image source: https://en.wikipedia.org/wiki/File:D-Fructose_vs._D-Glucose_Structural_Formulae_V.1.svg
Image author: Jü
Image license: https://creativecommons.org/publicdomain/zero/1.0/deed.en

Current topic in Nutrition, Health & Wellness: High fructose corn syrup production.

5 Replies to “High fructose corn syrup production”

  1. Cesar Westerfeld says:

    Thank you. Useful information on corn syrup production.

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  4. Jordan Poucher says:

    Nice info on corn syrup making

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