Press Esc to close
Wednesday 05 August 2015
News updated at 3:10 AM IST
Weather
Max: 28.6°C
Min : 21°C
In Bengaluru
Generally cloudy
Breaking News

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
Locals wade through a waterlogged road after high tide on River Ganga at Kalighat...

Locals wade through a waterlogged road after high tide on River Ganga at Kalighat...

Foreign tourists wade through a waterlogged road after high tide on Ganga river at Kalighat...

Foreign tourists wade through a waterlogged road after high tide on Ganga river at Kalighat...

Children sitting on the roof of a house in a flooded village at Satul in Murshidabad...

Children sitting on the roof of a house in a flooded village at Satul in Murshidabad...

Manish Malhotra with actress Aishwarya Rai on the ramp at the India Couture Week...

Manish Malhotra with actress Aishwarya Rai on the ramp at the India Couture Week...

Juhi Chawla at an interactive session on health hazards due to mobile radiations in Mumbai...

Juhi Chawla at an interactive session on health hazards due to mobile radiations in Mumbai...

Sania Mirza walks the ramp during a fashion show at India International Jewellery Week...

Sania Mirza walks the ramp during a fashion show at India International Jewellery Week...

Nawazuddin Siddiqui in Bhopal on Monday to promote his upcoming film 'Manjhi - The Mountain Man'...

Nawazuddin Siddiqui in Bhopal on Monday to promote his upcoming film 'Manjhi - The Mountain Man'...

Sonam Kapoor walks the ramp during India International Jewellery Week...

Sonam Kapoor walks the ramp during India International Jewellery Week...

Kohli reacts at a hotel staff after arriving at Hotel Taj in Colombo...

Kohli reacts at a hotel staff after arriving at Hotel Taj in Colombo...

Chitrangada Singh walks the ramp during India International Jewellery Week...

Chitrangada Singh walks the ramp during India International Jewellery Week...

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