PARTNERS

Controlling obesity with potato extract

A simple potato extract may limit weight gain from a diet that is high in fat and refined carbohydrates, according to scientists at McGill University. The results of their recent study, published on Molecular Nutrition & Food Research journal, were so surprising that the investigators repeated the experiment just to be sure.
Investigators fed mice an obesity-inducing diet for 10 weeks. The results soon appeared on the scale: mice that started out weighing on average 25 grams put on about 16 grams. But mice that consumed the same diet but with a potato extract gained much less weight: only 7 more grams. The benefits of the extract are due to its high concentration of polyphenols, a beneficial chemical component from the fruits and vegetables we eat.
“We were astonished by the results,” said Prof. Luis Agellon, one of the study’s authors. “We thought this can’t be right — in fact, we ran the experiment again using a different batch of extract prepared from potatoes grown in another season, just to be certain.”
The rate of obesity due to over-eating continues to rise in Canada, affecting 1 in every 4 adults. Obesity increases the risk of cardiovascular disease and cancer. According to this study, potato extracts could be a solution for preventing both obesity and type 2 diabetes.

Extract derived from 30 potatoes
“The daily dose of extract comes from 30 potatoes, but of course we don’t advise anyone to eat 30 potatoes a day,” says Stan Kubow, principal author of the study, “as that would be an enormous number of calories.” What the investigators envisage instead is making the extract available as a dietary supplement or simply as a cooking ingredient to be added in the kitchen.
Popularly known for its carbohydrate content, the potato is also a source of polyphenols. “In the famous French diet, considered to be very healthy, potatoes — not red wine — are the primary source of polyphenols,” says Kubow. “In North America, potatoes come third as a source of polyphenols — before the popular blueberries.”

A low-cost solution
“Potatoes have the advantage of being cheap to produce, and they’re already part of the basic diet in many countries,” Kubow explains. “We chose a cultivated variety that is consumed in Canada and especially rich in polyphenols.”
En route to the airport one day to catch the same flight, Stan Kubow, Associate Professor in the School of Dietetics and Human Nutrition and an expert on polyphenols, and Danielle Donnelly, Associate Professor in the Department of Plant Science and an expert on potatoes, had the bright idea of crossing their research interests, and together with Prof. Agellon, they carried out this study.
Although humans and mice metabolize foods in similar ways, clinical trials are absolutely necessary to validate beneficial effects in humans. And the optimal dose for men and women needs to be determined, since their metabolisms differ.
The team hopes to patent the potato extract, and is currently seeking partners, mainly from the food industry, to contribute to funding clinical trials.

LATEST NEWS

Ohmic heating-based extraction of biocompounds from cocoa bean shell

  Cocoa bean shell (CBS), a by-product of the chocolate industry, was employed as substrate for the sustainable recovery of bioactive compounds using ohmic heating...

Regulation EU 2024/1003 as regards maximum levels for contaminants in baby food

  Commission Regulation (EU) 2024/1003 of 4 April 2024 amending Regulation (EU) 2023/915 as regards maximum levels for the sum of 3-monochlorpropanediol (3-MCPD) and 3-MCPD fatty acid esters...

The latest issue of “Industrie delle Bevande” is now available

  In this issue, you can find more novelties seen at BrauBeviale, in efficiency, circular economy, digital tech, and the reportage of the visit in...

ASCOLTATE IL PODCAST DI "ALIMENTI FUNZIONALI"

DOVE TROVARE LE NOSTRE RIVISTE

17/04/2024 - BERGAMO
30/04-02/05/2024 RIYADH, ARABIA
7-10/05/2024 - PARMA
7-10/05/2024 - BARCELONA, SPAGNA
14-16/05/2024 - GINEVRA, SVIZZERA
28-29/05/2024 - MONACO, GERMANIA
28-30/05/2024 PARMA
6-7/06/2024 - PARMA
12-15/06/2024 - BANGKOK, TAILANDIA
18-21/06/2024 - SHANGHAI, CINA
8-12/09/2024, RIMINI
24-26/09/2024 - NORIMBERGA, GERMANIA
9-12/10/2024 - MILANO
16-17/10/2024 - VERONA
5-7/11/2024 - DUBAI, EAU
6-7/11/2024 LA ROCHELLE, FRANCIA
12-15/11/2024 MILANO
18-20/11/2024 - SAHANGHAI, CINA
19-21/11/2024 - FRANCOFORTE, GERMANIA
24-26/11/2024 - NORIMBERGA, GERMANIA
26-28/11/2024 BORDEAUX, FRANCIA
18-22/01/2025 - RIMINI
2-5/02/2025 - COLONIA, GERMANIA
5-7/02/2025 - BERLIN, GERMANIA
23-25/02/2025 - BOLOGNA
27-30/05/2025 - MILANO

CATALOGO LIBRI

CATALOGO RIVISTE