Petfood Industry - July 2018 - 40

40 | www.PetfoodIndustry.com

INGREDIENT ISSUES

Greg Aldrich, PhD

Legume seed oligosaccharides:
How much is just right in dog
and cat diets?
Finding when we cross the line from benefit
to issue is important.

The impact of oligosaccharides
on pet food formulations

Working with legume seeds
has its advantages for pet
food, but the oligosaccharide
concentrations that come
with them must be taken into
consideration. S.Piyaset I istockphoto.com

With the popularity
of grain-free diets, large
concentrations of oligosaccharides are being introduced into dog and cat
foods. The legume seeds such as peas,
lentils, chickpeas and various beans are the
leading sources. These legume seeds bring
great variety to the pet aisle, have more
protein than the cereal grains, and possess
other phytonutrients considered valuable
to overall health. However, they carry with
them significant quantities of fermentable
oligosaccharides. In small amounts, these
may be beneficial to the animal, but at large
concentrations they can become an issue.

Information regarding the impact of
oligosaccharides on dogs and cats is not
easily available. Perhaps this is due in part to
the relative newness of these legume seeds in
pet diets. So, one must extrapolate from the
human and farm animal literature or look to
work with soybeans to get an idea of what
might be occurring. The legume seed oligosaccharides in the raffinose family are 3-5
carbon short chain sugars (raffinose, stachyose and verbascose). They are indigestible by
mammalian enzymes and pass to the colon
where they are fermented by the microflora.
Unfortunately, these oligosaccharides
seem to be generally overlooked by pet
food companies promoting their grainfree options; not so much for the benefit
that they might provide, but for the sheer
magnitude they contribute to soluble fiber
in the colon. This can be especially exaggerated in the limited-ingredient diets in which
legume seeds might comprise upwards of 40
percent of a formula.
The total concentration of oligosaccharides can be 6 percent to 9 percent of the
legume seed mass. At that rate, they could

Dr. Aldrich is president of Pet Food & Ingredient Technology Inc. He is also the author of Petfood Industry magazine's monthly
column, "Ingredient Insights."

July 2018

Industry


http://www.PetfoodIndustry.com http://www.istockphoto.com

Table of Contents for the Digital Edition of Petfood Industry - July 2018

Petfood Industry - July 2018
Contents
High-protein pet food: popular ingredient has challenges
Industry News
New Products
Blue Dog Bakery: mass market premium treat success
New cat food, treat products refl ect pet ownership
The importance of transparency in the pet food industry
Brazil, Mexico lead Latin America in pet food consumption
Experts address Chinese pet food market, new regulations
Human vs. pet food labeling: How do they differ?
Legume seed oligosaccharides: How much is just right in dog and cat diets?
How shifting pet ownership economics impact pet food
Marketplace
Advertiser’s Index
Petfood Industry - July 2018 - CT1
Petfood Industry - July 2018 - CT2
Petfood Industry - July 2018 - Petfood Industry - July 2018
Petfood Industry - July 2018 - Cover1a
Petfood Industry - July 2018 - Cover1b
Petfood Industry - July 2018 - Cover2
Petfood Industry - July 2018 - 1
Petfood Industry - July 2018 - Contents
Petfood Industry - July 2018 - 3
Petfood Industry - July 2018 - High-protein pet food: popular ingredient has challenges
Petfood Industry - July 2018 - 5
Petfood Industry - July 2018 - Industry News
Petfood Industry - July 2018 - 7
Petfood Industry - July 2018 - 8
Petfood Industry - July 2018 - New Products
Petfood Industry - July 2018 - 10
Petfood Industry - July 2018 - 11
Petfood Industry - July 2018 - 12
Petfood Industry - July 2018 - 13
Petfood Industry - July 2018 - 14
Petfood Industry - July 2018 - 15
Petfood Industry - July 2018 - Blue Dog Bakery: mass market premium treat success
Petfood Industry - July 2018 - 17
Petfood Industry - July 2018 - 18
Petfood Industry - July 2018 - 19
Petfood Industry - July 2018 - New cat food, treat products refl ect pet ownership
Petfood Industry - July 2018 - 21
Petfood Industry - July 2018 - 22
Petfood Industry - July 2018 - 23
Petfood Industry - July 2018 - 24
Petfood Industry - July 2018 - 25
Petfood Industry - July 2018 - The importance of transparency in the pet food industry
Petfood Industry - July 2018 - 27
Petfood Industry - July 2018 - 28
Petfood Industry - July 2018 - 29
Petfood Industry - July 2018 - 30
Petfood Industry - July 2018 - 31
Petfood Industry - July 2018 - Brazil, Mexico lead Latin America in pet food consumption
Petfood Industry - July 2018 - 33
Petfood Industry - July 2018 - 34
Petfood Industry - July 2018 - 35
Petfood Industry - July 2018 - Experts address Chinese pet food market, new regulations
Petfood Industry - July 2018 - 37
Petfood Industry - July 2018 - Human vs. pet food labeling: How do they differ?
Petfood Industry - July 2018 - 39
Petfood Industry - July 2018 - Legume seed oligosaccharides: How much is just right in dog and cat diets?
Petfood Industry - July 2018 - 41
Petfood Industry - July 2018 - 42
Petfood Industry - July 2018 - 43
Petfood Industry - July 2018 - How shifting pet ownership economics impact pet food
Petfood Industry - July 2018 - 45
Petfood Industry - July 2018 - 46
Petfood Industry - July 2018 - 47
Petfood Industry - July 2018 - Marketplace
Petfood Industry - July 2018 - 49
Petfood Industry - July 2018 - Advertiser’s Index
Petfood Industry - July 2018 - Cover3
Petfood Industry - July 2018 - Cover4
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