---
title: Air Classification for Milling Oats and Preserving β-Glucans
description: Commercial-quality fine grinders, air classifying mills, rotormills, air classifiers ideal for oat milling to preserve and concentrate β-glucan components
image: https://blog.praterindustries.com/hubfs/lukasz-rawa-HB_MVtHVMLc-unsplash-scaled.jpg
---

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# Processing Oats to Preserve Nutrient Dense β-Glucans

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 Posted on 10/6/21 4:30 AM

## **Oats: A Nutrient-Dense Food**

Oats (Avena sativa) are very healthy and nutritious food. Most people know that oats are an excellent source of soluble fiber, they are vegan, and because they naturally do not contain gluten, oats are easier to digest (as long as oats are not cross-contaminated with wheat). For these reasons and more, oats can be found in various foods within the grocery aisles.

### Regulate Blood Sugar, Stabilize Energy, and Lower Cholesterol

One of the components of oats that contributes to their healthful qualities is β-glucan, a form of soluble fiber strongly linked to improvement in human blood-lipid profiles when consumed regularly. Indeed, the U.S. Food and Drug Administration (FDA) has approved a heart-healthy label for foods such as oats with high amounts of β-glucan, based on scientific evidence. β-glucan can help regulate blood sugar levels and is known to stimulate the human immune system.

### Are Oats a Sustainable Crop?

Oats are a low-input crop, requiring fewer resources to produce than other grains, making them a sustainability powerhouse. As[ Tamara Haspel writes for the Washington Post](https://www.washingtonpost.com/lifestyle/food/why-your-humble-bowl-of-oatmeal-could-help-feed-a-growing-planet/2017/05/18/47c460ee-3a72-11e7-9e48-c4f199710b69_story.html):

“Seems to me that, to be a superfood, a food’s got to deliver more than nutrients. It has to be cheap, versatile, good-tasting, not too onerous to prepare, and not so perishable that you end up tossing it. It also has to perform on the environmental front. It has to be able to play in the kind of responsible, productive agricultural system we’re going to need if we expect to feed almost 10 billion people by 2050. That’s a long list and a tall order. And it is met by one of the most prosaic of foods: oats.”

## **Oat Processing: Preserving the Natural Goodness**

The milling of oats is somewhat different than that of other grains. This is because the oat hull is not connected to the endosperm, and they have higher fat and soluble-fiber content than many other grains.

Proper oat milling and processing techniques must be utilized to concentrate and preserve the β-glucan content. The β-glucan is largely found in the oat groat's outer and inner layers, internal to the grain's hull.

Oat processing involves cleaning, grading, dehulling, and drying the grain. Afterward, oats may be steel-cut, rolled, flaked, rendered into flour, or processed for their bran content to produce the various foods we find in our grocery stores.

Several techniques can be used to process oats into high-β-glucan fractions specifically. These include:

- Dry milling, rolling, and grinding, followed by air classification to separate oat starch from oat bran
- Solubilizing the β-glucan with water, then sieving or centrifuging the slurry to concentrate the high-β-glucan fraction

## **Prater Sizing and Separation Equipment: The Perfect Solution for Oat Processing**

Prater Industries carries several commercial-quality [fine grinders](https://www.praterindustries.com/products/fine-grinders/), [air classifying mills](https://www.praterindustries.com/products/classifier-mills/), rotormills, and [air classifiers ](https://www.praterindustries.com/products/air-classifiers/)that are ideal for oat processing in a way that preserves and concentrates the β-glucan components.

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