Navigation Links
CCNY chemists use sugar-based gelators to solidify vegetable oils
Date:12/19/2013

Researchers at The City College of New York have reported the successful transformation of vegetable oils to a semisolid form using low-calorie sugars as a structuring agent. The findings portend the development of alternatives to structured oil products produced using saturated/trans fatty acids, which have been linked to coronary artery disease, obesity and diabetes.

The team, led by City College Professor of Chemistry George John, tested two sugar alcohol-based gelators, mannitol dioctanoate (M8) and sorbitol dioctanoate (S8), as structuring agents for four refined vegetable oils purchased at local grocery stores: canola oil, olive oil, soybean oil and grape seed oil. Both are amphiphiles i.e. molecules that are attracted to water and fats consisting of two octanoic acid chains (C8) appended to a sugar alcohol molecule.

Oils are transformed to semisolid forms known as structured oils. The best known of these are vegetable oil and margarine. Structured oils are also contained in candy and cake frosting.

"We have demonstrated the first sugar-based thickening agents for oil," said Professor John, whose previous investigations into the use of amphiphiles to solidify oil in the presence of water demonstrated their potential use in oil spill cleanups. He added that the two agents meet both Food & Drug Administration and GRAS (Generally Recognized as Safe) safety specifications, so they can be used for food processing.

Both M8 and S8 demonstrated excellent gelation tendencies for all of the oils that were tested, and the gels remained stable for several months. When mixed with the oils, the gelation agents self-assembled into three-dimensional crystalline networks that encapsulated the oils in liquid stage. Optimal gelation was achieved at structuring agent concentrations between three percent and five percent.

However, some differences between the two agents were reported. For example, mannitol gels were opaque in appearance while those made with sorbitol were translucent. That was because M8 yields a more densely packed network while the network of S8 gels consisted of needle-like microcrystallites.

Mannitol was found to be a more efficient gelator, producing stronger gels. However, Professor John pointed out that sorbitol-based gels, which have finer structures and appear more translucent, would be better suited for specific applications. "The multi-functionality and tunability of sugar-based gelators presents opportunities to develop next-generation oil thickeners," he added.

The findings were reported in the November 15 issue of the Journal of Agricultural Food Chemistry (J. Agric. Food Chem. 2013, DOI: 10.1021/jf401987a). In addition to Professor John, the team consisted of Swapnil R. Jadhav and Hyeondo Hwang from City College and Qingrong Huang from Rutgers University.


'/>"/>

Contact: Ellis Simon
esimon@ccny.cuny.edu
212-650-6460
City College of New York
Source:Eurekalert  

Related biology news :

1. Biochemists find incomplete protein digestion is a useful thing for some bacteria
2. CCNY chemists devise new way to prepare molecules for drug testing
3. Biochemists uphold law of physics
4. University of Wisconsin chemists find new compounds to curb staph infection
5. UCI chemists devise inexpensive, accurate way to detect prostate cancer
6. Chemists devise inexpensive, benchtop method for marking and selecting cells
7. Chemists develop reversible method of tagging proteins
8. Chemists advance clear conductive thin films
9. UMass Amherst biochemists developing tools to stop plague and other bacterial threats
10. UC Berkeley chemists installing first carbon dioxide sensor network in Oakland
11. Entomologist recognized for exceptional service to Californias vegetable industry
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
CCNY chemists use sugar-based gelators to solidify vegetable oils
(Date:1/13/2016)... ALBANY, New York , January 13, 2016 /PRNewswire/ ... Transparency Market Research has published a new market report ... Share, Growth, Trends, and Forecast, 2015 - 2023. According to ... mn in 2014 and is anticipated to reach US$1,625.8 ... from 2015 to 2023. In terms of volume, the ...
(Date:1/11/2016)... , Jan. 11, 2016 Synaptics Incorporated (NASDAQ: ... solutions, today announced that its ClearPad ® TouchView ... products won two separate categories in the 8 th ... and Best Technology Breakthrough. The Synaptics ® TDDI ... simplified supply chain, thinner devices, brighter displays and borderless ...
(Date:1/8/2016)... MANCHESTER, United Kingdom , Jan. 8, 2016 /PRNewswire/ ... sensor-based diagnostic products, today announced the closing of a $9 ... investors.  Proceeds from the financing will be used to accelerate ... device for detecting early-stage pressure ulcers. ... after receiving CE Mark approval. The device,s introduction has been ...
Breaking Biology News(10 mins):
(Date:2/5/2016)... , Feb. 5, 2016 Australian-US drug discovery and ... today the appointment of a new Chairman, Mr John ... , effective immediately. James Garner , has ... Director and former Acting CEO, Mr Iain Ross , ... Director. --> James Garner , has also been ...
(Date:2/4/2016)... , ... February 04, 2016 , ... ... GC-MS and triple quad LC-MS, host live demos and poster sessions, and present ... and exhibition. The conference takes place March 6 to 10 at the Georgia ...
(Date:2/4/2016)... VANCOUVER, British Columbia and MENLO PARK, ... Inc. (OTCQX: DMPI) ("DelMar" and the "Company"), a biopharmaceutical ... therapies, today announced that it will present at the ... on Monday, February 8, 2016 at 10:00 a.m. EST in ... Jeffrey Bacha , DelMar,s president and CEO, will provide an ...
(Date:2/4/2016)... 4, 2016 Sinovac Biotech Ltd. ("Sinovac" or ... of biopharmaceutical products in China , ... of directors received on February 4, 2016 a preliminary ... consortium comprised of PKU V-Ming ( Shanghai ... CICC Qianhai Development ( Shenzhen ) Fund ...
Breaking Biology Technology: