turning waste into assets

Avocado seeds a source of natural color

CHICAGO (UPI) -- U.S. food scientists say avocado seeds, typicallyconsidered waste by growers, could yield a natural orange coloring foruse in future food products.

In a study published by the Institute of Food Technologists,researchers found that crushing avocado seeds along with air generatesan orange color usable as a natural food coloring.

The discovery represents a potential added value for avocado growersand companies that process avocado into oil or food products such asguacamole, the researchers said.

While artificial colors are easy to produce and less expensive,consumer desire for more natural products here has led to an increasedeffort to discover new natural alternatives.

Scientists at Penn State say further research is under way intoutilizing the seeds, which account for 16 percent of the weight of anaverage avocado.

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Energy use 2011

U.S. energy use subject of report
LIVERMORE, Calif. (UPI) -- U.S. energy use went back up in 2010compared with 2009, which hit a 12-year low in consumption, with most of the increase in fossil fuels, a report said.
Electricity from renewable resources remained fairly constant with anincrease in wind power offset by a modest decline in hydroelectricity,the report by the Lawrence Livermore National Laboratory said.
Wind power jumped from 0.70 quadrillion BTU, or quads, in 2009 to 0.92quads in 2010. (A BTU, or British Thermal Unit, is a unit ofmeasurement for energy).

Biomass energy consumption, mostly in ethanol, rose from 3.88 quads to4.29 quads, the report said.
"We are still seeing the capacity additions from a wind energy boomcome online," said A.J. Simon, an energy systems analyst at thelaboratory who studied data provided by the Energy Department's EnergyInformation Administration. "And renewable fuel mandates are drivingthe consumption of ethanol by cars and trucks."

The majority of energy resources were used in 2010 for electricitygeneration, followed by transportation, industrial, residential andcommercial consumption.
"This is just a snapshot of how the energy system was used," Simonsaid. "Although it doesn't appear to change much from year-to-year,even small shifts can have big consequences for certain sectors of oureconomy."

Copyright 2011 by United Press International

The law of substitution applies to all good things . Bio fuels make economic sense

http://www.youtube.com/watch?v=GnGjfl1QWS4&feature=player_embedded