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By Allison Lampert

LAS VEGAS, Oct 22 (Reuters) - At the world's most significant industry show in Las Vegas high-end jets are enticing purchasers with their streamlined shapes, plush cabins - and progressively, their usage of alternative fuels.

Fuel producers and jetmakers are keen to showcase unique forms of aviation fuel considered less harmful to the climate, from used cooking oil to the definitely less glamorous meat waste.

Business jet operators, like airline companies, have bowed to environmental pressure on aviation and committed to cutting in half carbon emissions by 2050 compared with 2005.

Their hope is that embracing sustainable fuel to curb emissions could make organization jets more attractive to ecologically conscious purchasers - specifically corporations facing questions over sustainability from investors or green campaign groups.

The availability of less polluting personal jets could also spare the and famous the negative publicity experienced by Britain's Prince Harry and his spouse Meghan over a recent personal jet trip to southern France.

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

The most recent waste-based fuels include "fats, grease and oils that are by-products of the food industry," said Bryan Sherbacow, primary industrial officer of Boston-based biofuel producer World Energy, which produces fuel from meat waste used by Gulfstream.

"All of our product is inedible."

Some of the other 79 aircraft on screen are expected to be powered by 150,000 gallons of other renewable fuel mixes expected to be pumped at the program.

FLIGHT SHAMING

Private jets represent less than 0.1% of overall annual carbon emissions globally, however can emit, usually, approximately 20 times more carbon emissions per traveler mile than jetliners, according to the London-based private charter firm Victor.

Prince Harry has safeguarded his occasional use of personal jets to guarantee his household's security, and has actually said that on the uncommon celebrations he does not fly commercially he offsets his emissions.

But planemakers state incidents such as the furore over his itinerary have actually included fresh difficulties for an industry already aiming to justify its contribution to cutting corporate costs.

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

Bombardier thinks increased sustainable fuel usage will assist the market make inroads with corporations and rich buyers. According to industry information, billionaires just have a 19% business jet ownership rate.

But even an image makeover - with jets sporting stickers like "this airplane flies on eco-friendly fuels" and organisers including alternative fuel pumps for visiting aircrafts - is unlikely to satisfy all critics at the Oct 22-24 high-end jet event.

Environmentalists and some analysts remain doubtful that biojetfuels, usually combined 50-50 with kerosene, will make a significant influence on public perceptions about high-end travel.

"No quantity of Jatropha or Brazil-nut fuel can make organization jets look eco-friendly," said aviation expert Richard Aboulafia.

Demand from company jet operators for renewable fuels now far exceeds supply and their interest could drive future production, Sherbacow stated.

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

Corporate charter companies and experts are likewise seeing more interest from consumers who desire to buy 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 usage research study his business just recently completed for a Fortune 500 company.

"At the end of the day, I think that rate, cost per hour, range, speed and performance, that's still the (sales) driver. But I believe people are becoming more knowledgeable about the sustainability of operations and how it affects the world." (Reporting By Allison Lampert, Editing by Tim Hepher and Alexandra Hudson)