By Allison Lampert

LAS VEGAS, Oct 22 (Reuters) - At the world's greatest market show in Las Vegas high-end jets are drawing buyers with their smooth shapes, plush cabins - and significantly, their use of alternative fuels.

Fuel manufacturers and jetmakers are eager to display unique types of air travel fuel considered less damaging to the climate, from used cooking oil to the definitely less glamorous meat waste.

Business jet operators, like airline companies, have acquiesced environmental pressure on air travel and dedicated to cutting in half carbon emissions by 2050 compared with 2005.

Their hope is that embracing sustainable fuel to suppress emissions might make business jets more attractive to environmentally conscious purchasers - particularly corporations dealing with questions over sustainability from shareholders or green project groups.

The availability of less polluting personal jets might also spare the abundant and famous the negative promotion experienced by Britain's Prince Harry and his better half Meghan over a current personal jet trip to southern France.

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

The most recent waste-based fuels consist of "fats, grease and oils that are byproducts of the food market," stated Bryan Sherbacow, primary industrial officer of Boston-based biofuel producer World Energy, which produces fuel from meat waste utilized by Gulfstream.

"All of our product is inedible."

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

FLIGHT SHAMING

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

Prince Harry has actually protected his occasional use of private jets to ensure his household's safety, and has actually said that on the rare celebrations he does not fly commercially he offsets his emissions.

But planemakers say occurrences such as the furore over his schedule have added fresh difficulties for a market currently striving to justify its contribution to cutting business expenses.

"Incidents of flight shaming including using personal jets are unfortunate when you consider that our market has provided fuel performance enhancements of 40% over the past 40 years," said Bombardier Aviation President David Coleal.

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

But even an image remodeling - with jets sporting stickers like "this aircraft flies on renewable fuels" and organisers adding alternative fuel pumps for visiting airplanes - is not likely to please all critics at the Oct 22-24 luxury jet event.

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

"No quantity of jatropha curcas or Brazil-nut fuel can make service jets look eco-friendly," said air travel analyst Richard Aboulafia.

Demand from company jet operators for eco-friendly fuels now far surpasses 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 business and experts are likewise 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 played a role in a corporate jet utilization study his company just recently completed for a Fortune 500 business.

"At the end of the day, I think that rate, cost per hour, range, speed and efficiency, that's still the (sales) chauffeur. But I think individuals are ending up being more mindful of the sustainability of operations and how it affects the planet." (Reporting By Allison Lampert, Editing by Tim Hepher and Alexandra Hudson)