Navigation Links
New product to replace fishmeal could help prevent global food shortage
Date:5/15/2012

Scientists at the University of Liverpool are developing a new plant-based product that could replace fishmeal, reducing the need for farmers to feed fish to other fish at a time when more than 90% of EU waters are at risk from overfishing.

It is estimated that in order to satisfy consumer need for fish in an expanding human population, the UK market would need to increase supplies by more than 1.9 million tonnes by 2035.

Currently farmed fish, such as salmon, are fed food containing fishmeal, which means that several kilograms of wild fish are consumed to produce one kilogram of farmed fish. This has fuelled concerns that there could be a global shortage of fish in the next 20 years.

To help sustain fish stocks, the aquaculture industry is working towards replacing fishmeal with plant proteins, such as soya. The difficulty with this approach, however, is that many plants contain anti-nutrients that prevent digestive enzymes from working, resulting in poor digestion and failure to absorb important nutrients.

Scientists at the University of Liverpool are now leading a consortium including University of the Highlands and Islands; international feed manufacturer, Skretting; the UK's leading supplier of farmed sea bass, Anglesey Aquaculture; and University of Nottingham based company, Eminate, to resolve this issue by fermenting plant protein sources, which will use 'good bacteria' to predigest food and make nutrients more available for absorption in the gut.

Dr Iain Young, from the University's Institute of Integrative Biology, explains: "Using fishmeal means that you are feeding fish to fish. With the increasing demand for fish, in a human population that is set to reach just over nine billion in the next 20 years, this approach will continue to deplete fish stocks. Food based on soya and other beans has been tested as a possible replacement for fishmeal, but unfortunately carnivorous fish don't maintain good overall health on a diet of plant protein.

"Studies have shown that fish, such as salmon and sea bass, eat less of the plant protein product and don't grow as fast. Their flesh does not receive the necessary levels of Omega-3 fatty acids, which are a key component of human nutrition. The food also contains anti-nutrients that cause difficulties with digestion and absorption of nutrients, as well as toxins that can build up in the fish."

Solutions to this problem include preheating the plant protein to break down the toxins and anti-nutrients, but this is a costly method to sustain. Fermentation techniques, however, have proved cost-effective in agriculture and other industries and so the Liverpool team aim to exploit this to replace up to 15% of fishmeal, representing fish sales of approximately 14 million.

Dr Young continued: "Fermentation methods could predigest the toxins and anti-nutrients in plant protein food, making it easier for the fish to absorb and maintain overall good health. It will help resolve current technical limitations of the product and address the concerns about overfishing and food shortage in the years to come."


'/>"/>

Contact: Samantha Martin
samantha.martin@liv.ac.uk
44-151-794-2248
University of Liverpool
Source:Eurekalert

Related biology news :

1. Cellular secrets of plant fatty acid production understood
2. Discovery of plant proteins may boost agricultural yields and biofuel production
3. WanderID Launches Breakthrough ID Product for Children, Seniors
4. Testosterone-fuelled infantile males might be a product of Moms behaviour
5. Higher risk of birth defects from assisted reproduction
6. Plant diversity is key to maintaining productive vegetation, U of M study shows
7. WPI team scales-up production of biopolymer microthreads
8. Global prices of pollination-dependent products such as coffee could rise in the long term
9. How the ecological risks of extended bioenergy production can be reduced
10. Sexual reproduction brings long-term benefits, study shows
11. New synthetic biology technique boosts microbial production of diesel fuel
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/3/2017)... April 3, 2017  Data captured by ... platform, detected a statistically significant association between ... to treatment and objective response of cancer ... to predict whether cancer patients will respond ... as well as to improve both pre-infusion potency ...
(Date:3/30/2017)... Trends, opportunities and forecast in this market ... (fingerprint, AFIS, iris recognition, facial recognition, hand geometry, vein ... use industry (government and law enforcement, commercial and retail, ... others), and by region ( North America ... Pacific , and the Rest of the World) ...
(Date:3/27/2017)... N.Y. , March 27, 2017  Catholic ... Information and Management Systems Society (HIMSS) Analytics for ... EMR Adoption Model sm . In addition, CHS ... of U.S. hospitals using an electronic medical record ... for its high level of EMR usage in ...
Breaking Biology News(10 mins):
(Date:5/18/2017)... California (PRWEB) , ... May 18, 2017 , ... ... team-building activities. The Tapas Cooking Challenge is a two-hour team-building package designed ... delicious menu created by Chef Jodi Abel, which include items, such as Blackened ...
(Date:5/18/2017)... ... 2017 , ... Cognition Corporation ( http://www.cognition.us ), ... version 9.0 of the Cognition Cockpit platform. , “Our whole team has put ... CEO of Cognition. “We’re thrilled to finally be able to release it to ...
(Date:5/18/2017)... ... May 17, 2017 , ... Many complicated neurological disorders ... develop Alzheimer’s disease, while men are at greater risk for Parkinson’s disease. Understanding ... is the aim of a research program at Worcester Polytechnic Institute (WPI) funded ...
(Date:5/16/2017)... ... May 16, 2017 , ... Zansors ... for a wireless electrocardiogram (ECG or EKG) acquisition and monitoring device. This Zansors’ ... clothing, or secured directly onto the skin, making them significantly easier to deploy ...
Breaking Biology Technology: