By Allison Lampert

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

Fuel producers and jetmakers are eager to display novel kinds of air travel fuel deemed less hazardous to the climate, from utilized cooking oil to the noticeably less glamorous meat waste.

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

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

The accessibility of less polluting personal jets might also spare the abundant 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 screen in Las Vegas are utilizing California-produced fuel from inedible beef tallow.

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

"All of our product is inedible."

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

FLIGHT SHAMING

Private jets account for less than 0.1% of overall annual carbon emissions internationally, however can release, typically, as much as 20 times more carbon emissions per traveler mile than jetliners, according to the London-based personal charter company Victor.

Prince Harry has safeguarded his periodic usage of private jets to ensure his household's safety, and has said that on the unusual events he does not fly commercially he offsets his emissions.

But planemakers state occurrences such as the furore over his schedule have included fresh difficulties for an industry already striving to validate its contribution to cutting corporate expenses.

"Incidents of flight shaming including the use of private jets are unfortunate when you think about that our industry has provided fuel performance enhancements of 40% over the past 40 years," said Bombardier Aviation President David Coleal.

Bombardier sustainable fuel use will assist the market make inroads with corporations and rich buyers. According to market data, billionaires just have a 19% company jet ownership rate.

But even an image remodeling - with jets sporting sticker labels like "this airplane flies on renewable fuels" and organisers including alternative fuel pumps for checking out planes - is unlikely to please all critics at the Oct 22-24 luxury jet occasion.

Environmentalists and some analysts remain skeptical that biojetfuels, usually blended 50-50 with kerosene, will make a substantial impact on public understandings about luxury travel.

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

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

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

Corporate charter companies and experts are also seeing more interest from consumers who wish to purchase carbon credits to offset emissions from their flights.

Brian Proctor, CEO of Mente Group, a U.S. consultancy, stated emissions played a function in a corporate jet utilization study his business just recently completed for a Fortune 500 company.

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