There’s a surprising amount of science in a bag of potato chips.
Researchers have spent a long time growing potatoes for chip makers that may develop in all types of climates, keep away from illnesses and pests, sit in storage for months and nonetheless ship a satisfying crunch. They’ve additionally saved a watch on consumer trends; a shift to snack-size parts has elevated the demand for smaller chipping potatoes, for instance.
“The potato business is dynamic,” mentioned David Douches, a Michigan State College professor who leads the college’s Potato Breeding and Genetics Program. “The wants change, the prices, the pressures that they’ve, and the markets change. So now we have to adapt to that with our varieties.”
Douches has developed 5 new potato varieties for chips within the the final 15 years. His newest breakthrough is a bioengineered potato that may preserve a correct sugar stability when saved at colder temperatures, which might help preserve potatoes from rotting. He’s presently rising seeds for industrial testing of the potato, which isn’t but in the marketplace.
Douches’ work helps struggle world starvation; he has developed disease-resistant varieties for farmers in Nigeria, Kenya, Rwanda and Bangladesh. However he’s additionally serving to U.S. chip makers, grateful snackers and Michigan’s $2.5 billion potato business. Whereas Idaho leads the U.S. in potato manufacturing, Michigan is the highest producer of potatoes for chips.
There are round 50 distinctive potato varieties grown for chips within the U.S. proper now, in line with the Nationwide Chip Program, a cooperative that brings collectively Michigan State and 11 different college breeding applications with growers, corporations that make chips, and the U.S. Division of Agriculture.
Efforts to enhance these varieties are fixed. The Nationwide Chip Program evaluates round 225 new potato varieties annually and selects 100 for additional trials, mentioned Tim Rendall, the director of manufacturing analysis at Potatoes USA, a commerce group that oversees the chip program.
The shut partnership between researchers, farmers and potato chip corporations is uncommon within the meals business, mentioned Phil Gusmano, the vp of buying at Higher Made Snack Meals, which has produced potato chips in Detroit since 1930. Higher Made labored intently with Douches when he was growing two of the varieties the corporate makes use of now, Gusmano mentioned.
“We had been ready speak about dimension profile and completely different wants that make a very good chip,” Gusmano mentioned. “And the good factor is, they’re prepared to hearken to what now we have to say, as a result of in the event that they put collectively a potato that doesn’t actually meet the wants for the top processor, it doesn’t do them any good.”
Breeding a brand new sort of potato can take as much as 15 years, Douches mentioned. The easy potato has a surprisingly difficult genetic construction, with 4 chromosomes in every cell in comparison with two in most species, together with people. That makes it more durable to foretell which traits that cross-bred crops will inherit, he mentioned.
“We’re by no means in a position to repair a trait and carry that over to the following era, so it’s very troublesome to discover a potato that has all of the traits that we would like,” Douches mentioned.
Douches turned fascinated with potato breeding and genetics whereas in graduate faculty. At Michigan State, he focuses on chipping potatoes, since Michigan is a number one producer. Round 70% of the state’s potato crop is destined for chip processing, in line with the Michigan Ag Council. The commerce group estimates that one in all each 4 baggage of potato chips produced within the U.S. incorporates Michigan potatoes.
Breeding potatoes that may sit in storage for practically a yr has been one of many greatest challenges in Douches’ 40-year profession. Traditionally, farmers harvested potatoes after which saved them in large piles at round 50 levels Fahrenheit (10 levels Celsius). Temperatures any colder trigger sugar ranges to rise within the root greens, and better sugar content material results in darker potato chips. However hotter storage circumstances can result in rot.
“You assume they’re simply these inanimate objects, however they really are breathing and respiratory,” Douches mentioned. “While you try this to them, you’ve bought, like, a two- to three-day window the place they’re glad.”
His Manistee selection, which was launched in 2013, could be safely saved till July at 45 F (7.2 C) levels. His new bioengineered potato could be saved at 40 F (4.4 C).
Gusmano mentioned Higher Made used to supply potatoes from exterior of Michigan for half the yr as a result of the Michigan potatoes it harvested within the fall solely may very well be saved till February. The corporate now makes use of newer varieties, like Douches’ Mackinaw potato, which could be saved till July and is immune to a number of widespread illnesses.
“We’re not delivery potatoes from all around the nation to be fried right here in Michigan,” Gusmano mentioned. “As a substitute, they’re being shipped from an hour and a half away all yr lengthy.”
—Dee-Ann Durbin and Mike Householder, Related Press
