Escudo de la República de Colombia

English

Potato chips with antioxidant properties

This is a potato variety resistant to diseases and with natural antioxidants which when vacuum fried preserve their properties

Bogotá D. C., 30 de enero de 2017Agencia de Noticias UN-

Potatoes are soft-textured and purple-red colored.

They hope to provide added value to the presentation of potato chips.

The tubercles are resistant to diseases such as powdery scab and potato blight and have plenty antioxidant compounds.

With the new vacuum frying technique, they produce potatoes with 66% less fat.

They proved that potatoes reduce oxidation and improve its sensorial properties.

According to Universidad Nacional de Colombia (UNal) Science and Technology master’s candidate Manuela Gallón, the Functional Food Research Group headed by Professor Misael Cortés is currently working on the potato “Primavera” (Spring) variety, a diploid potato (half the chromosomes of a normal potato) which has improved agronomic and nutritional characteristics and are looking to use it for industrial potato chip production.

This potato is resistant to diseases such as powdery scab and potato blight and has a high amount of antioxidant compounds on the surface, especially anthocyanins. Potatoes are soft-textured and purple-red colored; the pulp is a mixture of red-purple and cream colors.

This new variety is the result of more than 20 years of work from researchers of the UNal-Medellín and Bogotá Potato Genetic Improvement Program.

For this they have been using vacuum frying technology which works with lower than local barometric pressure and therefore frying temperatures are lower, preserving a greater amount of bioactive compounds. The process was carried out in a UNal-Medellín reactor.

Vacuum fried

After obtaining the fried potato chips, researchers analyzed the antioxidants and total phenols as well as texture, color, moisture, water activity, and peroxide rate with the purpose of determining the characteristics of the product after the vacuum frying process. They also compared these chips with traditional fried potatoes.

“We observed that this vacuum fried potato variety preserves 69% more phenolic compounds than regular fried chips; in other words, they maintain most antioxidant compounds,” said Gallón.

Furthermore, it allows obtaining potato chips with 35% fewer peroxide compounds, i.e. the oil oxidizes less. It also has better texture, moisture and color and best of all, 66% less fat.

With the tests and observations mentioned above, they proved that with this technology potatoes are better preserved and the sensorial properties are also improved as they are more stable; new flavors are added and thanks to its purple color it as gastronomically attractive.

“We hope to transition to the snack market because these potatoes have greater nutritional values and we are also providing greater stability, enabling increased marketing cost,” she said.

A work of 15 years

Currently, they are assessing the duration of fried potatoes and how they behave when stored under certain conditions. At the end of the research project they hope to enter into an agreement with any firm to begin to market the product.

Producing this new potato variety was the work of José Miguel Cotes Torres, UNal-Medellín professor and head of the research project who explained that these are the first potatoes in the world that have been reported to have antioxidants and also resistant to diseases.

These new crops are providing innovations in the market and supporting small and mid-sized producers.

The process involved a stage of close to 15 years analyzing topics of diseases resistance and variety features. They spent one-year performing crosses and another four choosing the genetic material.

(Por: End/
)
N.° 980

Otras noticias

Educación

junio 23 de 2017

Nueva Sede de La Paz de la Universidad Nacional

Desde su fundación, hace 150 años, la Universidad Nacional ha integrado...

El mecanismo se desarrolló para el sector de agua, dadas las brechas en la oferta de este servicio. Foto tomada de: goo.gl/d3ptWg

Economía & Organizaciones

junio 23 de 2017

Método de inversión financiaría proyectos de acueducto

El principal diferenciador respecto a otros métodos es que en este el...

El diseño del sistema modular de almacenamiento optimiza el transporte y facilita la limpieza del producto. Foto: Nicolás Bojacá, Agencia de Noticias / Unimedios.

Ciencia & Tecnología

junio 23 de 2017

Contenedor de alimentos para rescatistas

A partir de un diseño con enfoque ambiental, que evita la acumulación de...

Educación

junio 23 de 2017

Docentes de la U.N. Palmira reciben tenencia de cargo

Dos profesores asociados de la Facultad de Ingeniería y Administración...

El Método Madre Canguro, ideado a finales de los años setenta por el pediatra de la U.N. Édgar Rey Sanabria, se ha convertido en un aliado para la supervivencia de los niños prematuros. (Foto: Herminso Ruiz/Asociación Colombiana de Salud Pública).

Ciencia & Tecnología

junio 23 de 2017

Método Madre Canguro, aporte de la U.N. a la salud mundial, y más en UN Periódico

Este domingo 25 de junio el periódico de la Universidad Nacional de Colombia...

El plan curricular para que los estudiantes se apropien de las TIC debe estar acompañado por docentes expertos.

Educación

junio 23 de 2017

Bachilleres son formados en TIC por la U.N.

Ante el panorama de que Colombia tendrá un déficit de 53.000 profesionales TI...

En el taller participaron líderes sociales del departamento de Arauca y representantes de entidades públicas y privadas.

Política & Sociedad

junio 23 de 2017

Acuerdos se enfocan en paz territorial

Los acuerdos pactados con las Farc para poner fin al conflicto se refieren no...

El sistema de correas retráctiles permite anclar y desanclar el cargador a la carcasa para ofrecer mayor seguridad.  Fotos: Nicolás Bojacá, Agencia de Noticias / Unimedios.

Ciencia & Tecnología

junio 23 de 2017

Coche multifuncional facilita transporte de bebés

Babypack es un cargador que se lleva en la espalda o como coche rodante. El...

Por medio de las redes sociales se puede motivar a la sociedad generando información sencilla sobre mejores prácticas.

Educación

junio 23 de 2017

Redes sociales, herramienta para erradicar el hambre

Con la propuesta de aprovechar este medio, Jhon Felipe Sandoval, estudiante de...

Las comunidades indígenas que habitan la Sierra Nevada tienen iniciativas similares; estas son Embera, Nasa, Misak, Pastos y Quillacingas.

Ciudad & Territorio

junio 23 de 2017

La U. N. construirá casas de pensamiento u'wa

También conocidas como “casas de sabiduría”, los nuevos espacios servirán como...