Click here for more information about Algenuity
Click here for more information about Liqofluxphenometrics515R1
Visit cricatalyst.com!Evodos Separation Technology

Innovations

Papaya-powered algae for Hawaiian biodiesel

August 2, 2017
AlgaeIndustryMagazine.com

Discarded papayas are being examined as part of a zero-waste system to produce algal oils for biodiesel. ARS photo: Peggy Greb

In Hilo, Hawaii, Agricultural Research Service (ARS) Plant Pathologist Lisa Keith is leading an effort to produce biodiesel using the green algae Auxenochlorella protothecoides (formerly Chlorella protothecoides).

She’s also using the pulp of discarded papayas — those deemed too blemished, malformed, or damaged to be sold for market. The system developed by Dr. Keith and her colleagues calls for growing the algae in bioreactors, where they are fed what might be likened to a papaya smoothie.

“While nearly all algae are capable of using energy from light to produce organic molecules from carbon dioxide and water, some algae, including Auxenochlorella protothecoides, can also absorb organic molecules such as sugars from sources such as papaya juice,” explains Dr. Keith.

In the process, these industrious algae end up storing 60 percent of their cellular weight in lipids. These lipids, in turn, provide material for making biodiesel. The algal remains from the oil-extraction process, called “algal meal,” can offer Hawaiian farmers a low-cost source of feed for fish or livestock, cutting importation costs, according to the researchers. The algae’s fondness for papaya also could offer a way for growers to recoup some of the losses on about one-third of Hawaii’s $11-million papaya crop discarded because of defects.

It’s all part of what Dr. Keith and her colleagues call a zero-waste system.

“The goal is to make agriculture more profitable and to address food- and energy-security issues in Hawaii,” she says.

Posted by Jan Suszkiw, Public Affairs Specialist, Agricultural Research Service in Research and Science

More Like This…

HOME A.I.M. Archives

Copyright ©2010-2017 AlgaeIndustryMagazine.com. All rights reserved. Permission required to reprint this article in its entirety. Must include copyright statement and live hyperlinks. Contact editorial@algaeindustrymagazine.com. A.I.M. accepts unsolicited manuscripts for consideration, and takes no responsibility for the validity of claims made in submitted editorial.

twittertopbarlinks_eventstopbarlinks_requesttopbarlinks_archives

From The A.I.M. Archives

— Refresh Page for More Choices
Northwestern University researchers have developed a quantitative tool that might help bring back coral from the brink of extinction. The novel algorithm could help asses...
In New Zealand is an internationally significant collection of microalgae cultures known as the Cawthron Institute Culture Collection of Microalgae (CICCM). The CICCM was...
Judy Siegel-Itzkovich writes in the Jerusalem Post that Dr. Iftach Yacoby and his research team at Tel Aviv University, in Israel, have genetically altered microalgae to ...
Algae.Tec has announced that, with the completion of the US$1M injection by Gencore, their nutraceutical plant upgrade in Cummings, Georgia, is progressing ahead of sched...
Forbes is running an interview with Bren Smith, an Ashoka Fellow and the founder of GreenWave, an organization dedicated to restoring oceans, mitigating climate change an...
Nicolas Sainte-Foie writes for Labiotech.eu about French startup Algopack manufacturing bio-based plastics made from brown algae. Founded by Rémy Lucas in 2010 and manage...
A Quebec-based company that specializes in the manufacturing and commercialization of marine and seaweed-based products for agriculture and horticulture constructed a new...
ExxonMobil and Synthetic Genomics Inc. have announced that, in joint research into advanced biofuels, they have modified an algal strain to more than double its oil conte...
The U.S. Department of Energy (DOE) has announced the selection of three projects to receive up to $8 million, aimed at reducing the costs of producing algal biofuels and...
The recent announcement by the U.S. Department of Energy (DOE) of three projects to receive up to $8 million, aimed at reducing the costs of producing algal biofuels and ...
Memory Maninga reports for Zambia Daily Mail that in Mansa, the capital of the Luapula Province of Zambia, spirulina is being grown in ponds in the communities because of...
Colorado State University scientists and Arizona State University’s Arizona Center for Algae Technology and Innovation are partners in a three-year grant of up to $3.5 mi...