Featured Research

from universities, journals, and other organizations

New methods increases food and bioenergy production from cassava

Date:
September 24, 2013
Source:
Expertsvar
Summary:
New ways to utilize starch from cassava can provide food to an additional 30 million people without taking more arable land than today. By 2030, the figure will be 100 million. In addition, the same land can also contribute to an increased production of bioenergy.

New ways to utilize starch from cassava can provide food to an additional 30 million people without taking more arable land than today. By 2030 the figure will be 100 million. In addition, the same land can also contribute to an increased production of bioenergy. This is shown in a new study from researchers at the Swedish University of Agricultural Sciences (SLU) and China Agricultural University (CAU).

Related Articles


Cassava or manioc (Manihot esculenta Crantz.) is grown for its high starch content. The large tubers are very starchy and processed into flour or semolina (tapioca). This is the staple food for between 0.5-1 billion people in Africa, Latin America and Asia. The plant is grown on about 19 million hectares of land.

There are also strong interests to increase the use of cassava starch for industrial use. This can reduce the amount of food or result in even more land being utilized for production. Researchers at SLU and CAU have found that discarded stems contain surprisingly large amounts of starch, up to 30% of dry mass. In today's production the stems are removed from plantations and are considered a waste problem.

With simple water-based technologies, up to 15% of starch stem dry weight can be extracted. If this starch can be used for industrial purposes, root starch previously used industrially can provide food for an additional 30 million people in the world today and close to 100 million in 2030.

The study also shows that residues and process for the extraction of stem starch can be used for the production of biofuels (solid fuel and biogas) and provide substantial added values. Without land use increases, the researchers show that food and bioenergy in combination can contribute to sustainable development and to combat malnutrition and poverty globally.

- There is great potential with the new ideas about using cassava stems as an industrial commodity, rather than as today a waste problem. We were actually surprised to find such large amounts of nutritious starch in a biomass residue, mostly stored in xylem tissues of the stems, says Associate Professor Shaojun Xiong, who is leading the research in this field.

The study is published in the latest issue of the journal Global Change Biology Bioenergy.


Story Source:

The above story is based on materials provided by Expertsvar. Note: Materials may be edited for content and length.


Journal Reference:

  1. Wanbin Zhu, Torbj๖rn A. Lestander, Hๅkan ึrberg, Maogui Wei, Bj๖rn Hedman, Jiwei Ren, Guanghui Xie, Shaojun Xiong. Cassava stems: a new resource to increase food and fuel production. GCB Bioenergy, 2013; DOI: 10.1111/gcbb.12112

Cite This Page:

Expertsvar. "New methods increases food and bioenergy production from cassava." ScienceDaily. ScienceDaily, 24 September 2013. <www.sciencedaily.com/releases/2013/09/130924091327.htm>.
Expertsvar. (2013, September 24). New methods increases food and bioenergy production from cassava. ScienceDaily. Retrieved December 21, 2014 from www.sciencedaily.com/releases/2013/09/130924091327.htm
Expertsvar. "New methods increases food and bioenergy production from cassava." ScienceDaily. www.sciencedaily.com/releases/2013/09/130924091327.htm (accessed December 21, 2014).

Share This


More From ScienceDaily



More Plants & Animals News

Sunday, December 21, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Researchers Test Colombian Village With High Alzheimer's Rates

Researchers Test Colombian Village With High Alzheimer's Rates

AFP (Dec. 19, 2014) — In Yarumal, a village in N. Colombia, Alzheimer's has ravaged a disproportionately large number of families. A genetic "curse" that may pave the way for research on how to treat the disease that claims a new victim every four seconds. Duration: 02:42 Video provided by AFP
Powered by NewsLook.com
Monarch Butterflies Descend Upon Mexican Forest During Annual Migration

Monarch Butterflies Descend Upon Mexican Forest During Annual Migration

Reuters - Light News Video Online (Dec. 19, 2014) — Millions of monarch butterflies begin to descend onto Mexico as part of their annual migration south. Rough Cut (no reporter narration) Video provided by Reuters
Powered by NewsLook.com
The Best Protein-Filled Foods to Energize You for the New Year

The Best Protein-Filled Foods to Energize You for the New Year

Buzz60 (Dec. 19, 2014) — The new year is coming and nothing will energize you more for 2015 than protein-filled foods. Fitness and nutrition expert John Basedow (@JohnBasedow) gives his favorite high protein foods that will help you build muscle, lose fat and have endless energy. Video provided by Buzz60
Powered by NewsLook.com
Birds Might Be Better Meteorologists Than Us

Birds Might Be Better Meteorologists Than Us

Newsy (Dec. 19, 2014) — A new study suggests a certain type of bird was able to sense a tornado outbreak that moved through the U.S. a day before it hit. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:

Strange & Offbeat Stories

 

Plants & Animals

Earth & Climate

Fossils & Ruins

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins