Press Esc to close
Saturday 30 July 2016
News updated at 2:28 AM IST
Weather
Max: 27.6°C
Min : 19.4°C
In Bengaluru
Sunny day

Now, potatoes with low sugar content and longer shelf life

Gautam Dheer, Chandigarh, August 26, 2013, DH News Service

The Central Potato Research Institute (CPRI) in Shimla, the country’s only premier potato research institute, has evolved a new technology to prevent conversion of starch into glucose in low temperature conditions, like cold storages. Glucose level in potatoes increases substantially in low temperature, reducing its shelf life and rendering it inedible for diabetic patients.

The CPRI said sugar or glucose levels in potatoes will not rise with the use of this technology. The institute is also getting a patent for this technology, CPRI director Bir Pal Singh told Deccan Herald on Monday. The breakthrough, Singh said, has been evolved purely for commercial. Low-sugar potatoes with a longer shelf life was otherwise not possible, with sugar level rising in cold storages.

The technology raises the hope for potatoes sans sugar being available in markets, something which may bring smile on the faces of the potato-loving diabetic patients. Once the technology is implemented commercially, diabetics with a sweet tooth will possibly find sugar-free potatoes in the nearby vegetable store.  

CPRI sources say potatoes contain starch which turns into glucose. In freshly harvested potatoes, the starch content is low at about 1 per cent, but the level of glucose rises beyond 6 per cent in low temperatures. 

Singh said: “This is the first such technology in the country. This will be a boon for the processing industry. Starch in potatoes turns into sugar and this process is accelerated by an enzyme called invertase. We have silenced this process, in fact stopped it, so that the sugar levels don’t increase in potatoes.” 

The technology has “great cold chipping attributes,” which controls the rise of sugar level in potatoes. “Transgenic potatoes have reduced expression of the vacuolar and invertase gene resulting in cold induce sweetening resistant potato which is desirable for the processing industry. The breakthrough is an outcome of teamwork and five years of research,” Singh added.


Go to Top

Photo Gallery
An elephant moves through a waterlogged street after heavy rains in New Delhi on Friday...

An elephant moves through a waterlogged street after heavy rains in New Delhi on Friday...

People catching fish at flooded water due to heavy rain Madiwala Lake over flow...

People catching fish at flooded water due to heavy rain Madiwala Lake over flow...

Rain water flooded on the road at Anugraha Layout 2nd stage, Bilekahalli in Bengaluru...

Rain water flooded on the road at Anugraha Layout 2nd stage, Bilekahalli in Bengaluru...

Workers remove scaffolding from a replica of planet earth after repairs at Science City...

Workers remove scaffolding from a replica of planet earth after repairs at Science City...

Women unload rice grains from a boat to dry in the sunshine in flood affected village Murkata...

Women unload rice grains from a boat to dry in the sunshine in flood affected village Murkata...

Members of Karunada Seene staging protest against Mahadai tribunal verdict at SBM circle...

Members of Karunada Seene staging protest against Mahadai tribunal verdict at SBM circle...

Karnataka Fire & Emergency Service personnel rescuing the people form the flood affected...

Karnataka Fire & Emergency Service personnel rescuing the people form the flood affected...

A boy tries to swim in the flooded water at Kodichikkanhalli area in Bengaluru on Friday...

A boy tries to swim in the flooded water at Kodichikkanhalli area in Bengaluru on Friday...

A young one-horned rhino trying to rise above water on the National Highway from the flooded...

A young one-horned rhino trying to rise above water on the National Highway from the flooded...

A Royal Bengal Tiger in a pool in Kolkata on Friday during International Tiger day...

A Royal Bengal Tiger in a pool in Kolkata on Friday during International Tiger day...

Copyright 2014, The Printers (Mysore) Private Ltd., 75, M.G Road, Post Box 5331, Bengaluru - 560001
Tel: +91 (80) 25880000 Fax No. +91 (80) 25880523