Steviol molecular structure

submitted by: nsf
Responsible for the sweet tasting leaves of the Stevia plant, steviol glycosides have become popularized as a no-cal alternative to sugar. With funding from NSF’s Mathematical and Physical Sciences Directorate, R. Graham Cooks at Purdue University has applied his mass spectrometer to studying (among other things) stevia leaves. In an experiment that rapidly detected the glycosides in stevia leaves, Cook’s group has developed a powerful method for the rapid screening of plant materials...

Lactose molecular structure

submitted by: nsf
One of milk’s two sugars, lactose is not digestible in those lacking sufficient levels of lactase, which allows the body to metabolize that sugar. Certain parts of the world are reported to have higher incidences of lactose intolerance. NSFfunded Sarah Tishkoff at the University of Pennsylvania is studying the “gut microbiome” and its impact on nutritional status; such as its contribution to obesity, malnutrition and susceptibility to infectious disease. Her anthropologic study will...

Fructose molecular structure

submitted by: nsf
Fructose, or fruit sugar, is found in tree fruits, honey and berries, though you may know it from its corn-based origins as the common ingredient high-fructose corn syrup. NSF-funded researchers are also looking at plant sugars as a potential fuel source. While the idea of plant-based fuels as an alternative to fossil fuels has been around for a while, engineers are finding new ways of getting bigger bio-based yields more cheaply. Xianghong Qian, a chemical engineer at the University of...

An Assessment of Smuggling of Selected Agricultural Commodities

submitted by: UP Los Baños

Documentation of the policy seminar "An Assessment of Smuggling of Selected Agricultural Commodities" delivered by Dr. Prudencio U. Gordoncillo, Institute of Governance and Rural Development, College of Public Affairs and Development, UPLB, College, Laguna on 14 August 2013.

Science Nation - Invasion of the Earth Worms

submitted by: nsf
Invasive species of earth worms have made their way north in the United States and are doing their job too well! They've moved into formerly worm-free forests, which rely on undecayed leaf matter. When worms decompose that leaf layer, the ecology may shift, making it uninhabitable for certain species of trees, ferns and wildflowers. It's of particular concern in the Great Lakes region when anglers simply dump their bait worms back into the soil, creating a difficult environment for old...