HOME >> BIOLOGY >> NEWS
Enhanced nutrition could result from rice research leading to high-protein flour

Expression of a thermostable amylopullulanase in transgenic rice seeds leads to starch autohydrolysis and production of high-protein flour. A similar approach could be applied to other cereals, such as corn.

Rice seeds contain abundant starch and high quality protein and are commonly used in food and beverage industries. Generally, rice seeds contain 6-10% (w/w) protein and 70-80% (w/w) starch. Separation of protein and starch allows for the processing of high-protein rice flour and starch hydrolysates into different products.

To simplify the production process and improve the cost effectiveness and efficiency of starch bioprocessing, scientists Su-May Yu, Chih-Ming Chiang, and Jei-Fu Shaw, all of Academia Sinica, Taipei, Taiwan, highly expressed a thermotolerant and bi-functional starch hydrolase, amylopullulanase (APU), in transgenic rice seeds.

Transgenic rice seeds were heated at high temperatures. Starch in transgenic seeds was hydrolyzed rapidly at these temperatures, and the concentration of soluble sugars increased significantly with incubation time. There is a correlation between APU activities and the starch-to-sugars conversion rates. The more APU present in seeds, the faster the rate of starch hydrolysis to sugars.

Yu and colleagues generated novel APU-transgenic rice seeds. The unique feature of heat-activated rapid autodrolysis of starch in these seeds could not only eliminate the need for the addition of commercial enzymes, but also improves the efficiency of starch bioprocessing. These seeds can be processed to simultaneously produce high-protein rice flour and sugar syrups for human consumption and broad industrial uses. A similar approach could also be applied to other cereals, e.g., maize, which might offer even less production cost than rice.

Results of this research will be presented in a minisymposium 10:10 a.m. to 11:50 a.m. Hawaii Time Wednesday, July 30, 2003 at the American Society of Plant Biolo
'"/>

Contact: Brian Hyps
bhyps@aspb.org
571-332-2522
American Society of Plant Biologists
30-Jul-2003


Page: 1 2

Related biology news :

1. Improved nutrition could reduce malaria burden worldwide
2. International symposium on nutritional genomics
3. Improved nutrition could prevent more than half of the worlds child deaths annually
4. Understanding nutrition labels can lead to healthier eating
5. Highlights of Tufts University nutrition research: January 2004
6. One-size-fits-all approach to nutrition recommendations may soon be outdated
7. Enhancing the nutritional value of soybeans
8. Researchers discuss trend in customized nutrition recommendations
9. Kids gardens grow interest in science, nutrition
10. Premature birth linked to lack of nutrition before pregnancy: study
11. Could Bt transgenic crops have nutritionally favourable effects on insects?

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:8/3/2020)... , ... August 03, 2020 , ... ... announced a new partnership with medical equipment manufacturer, Spectrum Solutions, to provide COVID-19 ... to strengthen their laboratory supply chain for more than 10 years. Early in ...
(Date:7/31/2020)... ... 2020 , ... Justin Zamirowski to lead upcoming launches of ... on Type 2 diabetes and associated comorbidities. , Justin brings over 20 years ... As Chief Commercial Officer, Justin will lead Better Therapeutics’ efforts in ...
(Date:7/18/2020)... ... 2020 , ... A study has been published in the ... noise control device to attenuate typical noises in a simulated neonatal intensive care ... sounds from patient monitors, ventilators and other bedside devices that would affect the ...
Breaking Biology News(10 mins):
(Date:7/22/2020)... , ... July 22, 2020 , ... Join experts from ... Lorenc, Sr. Manager Regulatory Solutions, in a one hour live webinar on ... regulating body in China for drugs and medical devices. Specifically, for medical devices, the ...
(Date:7/18/2020)... TORONTO (PRWEB) , ... July 17, 2020 , ... ... and global consulting firm for the life sciences and food industries, is pleased ... new Director of Clinical Research – Business Development. , Charles is an accomplished ...
(Date:7/10/2020)... ... July 09, 2020 , ... ... therapy, today announced the hiring of Allen R. Nissenson, M.D., F.A.C.P., as its ... the clinical development of Sentien’s lead product, SBI-101. Dr. Nissenson serves as ...
(Date:7/1/2020)... ... June 29, 2020 , ... The Interlocal Purchasing ... to its membership, recently named BioFit Engineered Products an Awarded Vendor. ... purchase ergonomic seating, cafeteria tables, book trucks and carts at discounted pricing without ...
Breaking Biology Technology:
Cached News: