By Allison Lampert

LAS VEGAS, Oct 22 (Reuters) - At the world's biggest market show in Las Vegas luxury jets are drawing buyers with their streamlined shapes, plush cabins - and increasingly, their usage of alternative fuels.

Fuel producers and jetmakers are eager to display novel types of aviation fuel considered less damaging to the climate, from utilized cooking oil to the clearly less glamorous meat waste.

Business jet operators, like airlines, have bowed to ecological pressure on aviation and dedicated to cutting in half carbon emissions by 2050 compared to 2005.

Their hope is that embracing sustainable fuel to suppress emissions could make service jets more appealing to ecologically mindful purchasers - specifically corporations dealing with concerns over sustainability from shareholders or green campaign groups.

The accessibility of less polluting personal jets could also spare the abundant and well-known the negative publicity experienced by Britain's Prince Harry and his partner Meghan over a recent personal jet journey to southern France.

Five Gulfstream jets on screen in Las Vegas are utilizing California-produced fuel from inedible beef tallow.

The newest waste-based fuels consist of "fats, grease and oils that are byproducts of the food industry," said Bryan Sherbacow, chief business officer of Boston-based biofuel producer World Energy, which produces fuel from meat waste utilized by Gulfstream.

"All of our item is inedible."

Some of the other 79 aircraft on display are anticipated to be powered by 150,000 gallons of other eco-friendly fuel blends expected to be pumped at the show.

FLIGHT SHAMING

Private jets represent less than 0.1% of overall annual carbon emissions internationally, however can release, on average, up to 20 times more carbon emissions per guest mile than jetliners, according to the London-based private charter firm Victor.

Prince Harry has actually defended his occasional use of private jets to ensure his family's security, and has actually said that on the uncommon occasions he does not fly commercially he offsets his emissions.

But planemakers state incidents such as the furore over his schedule have actually included fresh difficulties for a market currently making every effort to validate its contribution to cutting business costs.

"Incidents of flight shaming including using private jets are regrettable when you consider that our market has actually provided fuel performance enhancements of 40% over the previous 40 years," stated Bombardier Aviation President David Coleal.

Bombardier thinks increased sustainable fuel use will help the industry make inroads with corporations and wealthy purchasers. According to industry information, billionaires just have a 19% service jet ownership rate.

But even an image makeover - with jets sporting stickers like "this airplane flies on renewable fuels" and organisers including alternative fuel pumps for checking out planes - is unlikely to satisfy all critics at the Oct 22-24 high-end jet occasion.

Environmentalists and some analysts stay doubtful that biojetfuels, typically mixed 50-50 with kerosene, will make a considerable effect on public understandings about high-end travel.

"No amount of jatropha curcas or Brazil-nut fuel can make service jets look eco-friendly," stated aviation expert Richard Aboulafia.

Demand from organization jet operators for renewable fuels now far goes beyond supply and their interest could drive future production, Sherbacow said.

World Energy, which produces 40 million gallons of biofuel at its California plant, could broaden production up to 150 million gallons by 2022.

Corporate charter business and consultants are also seeing more interest from consumers who wish to purchase carbon credits to balance out emissions from their flights.

Brian Proctor, CEO of Mente Group, a U.S. consultancy, said emissions contributed in a corporate jet utilization research study his company recently finished for a Fortune 500 business.

"At the end of the day, I think that price, cost per hour, range, speed and efficiency, that's still the (sales) motorist. But I believe individuals are becoming more knowledgeable about the sustainability of operations and how it impacts the planet." (Reporting By Allison Lampert, Editing by Tim Hepher and Alexandra Hudson)