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 sleek shapes, plush cabins - and progressively, their use of alternative fuels.

Fuel producers and jetmakers are eager to showcase novel forms of air travel fuel deemed less damaging to the climate, from utilized cooking oil to the definitely less attractive meat waste.

Business jet operators, like airlines, have actually acquiesced ecological pressure on air travel and committed to halving carbon emissions by 2050 compared with 2005.

Their hope is that adopting eco-friendly fuel to curb emissions might make organization jets more appealing to ecologically mindful purchasers - specifically corporations dealing with questions over sustainability from shareholders or green campaign groups.

The accessibility of less contaminating private jets might likewise spare the abundant and well-known the unfavorable 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 screen in Las Vegas are utilizing California-produced fuel from inedible beef tallow.

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

"All of our item is inedible."

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

FLIGHT SHAMING

Private jets account for less than 0.1% of overall yearly carbon emissions internationally, but can discharge, usually, up to 20 times more carbon emissions per passenger mile than jetliners, according to the London-based personal charter firm Victor.

Prince Harry has safeguarded his periodic usage of private jets to guarantee his family's safety, and has stated that on the uncommon occasions he does not fly commercially he offsets his emissions.

But planemakers say incidents such as the furore over his schedule have added fresh challenges for an industry currently striving to justify its contribution to cutting corporate costs.

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

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

But even an image transformation - with jets sporting sticker labels like "this aircraft flies on sustainable fuels" and organisers including alternative fuel pumps for checking out airplanes - is unlikely to satisfy all critics at the Oct 22-24 high-end jet event.

Environmentalists and some analysts remain hesitant that biojetfuels, normally combined 50-50 with kerosene, will make a significant effect on public understandings about high-end travel.

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

Demand from business jet operators for eco-friendly fuels now far goes beyond supply and their interest might drive future production, said.

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 likewise 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, said emissions played a role in a business jet utilization study his business just recently finished for a Fortune 500 company.

"At the end of the day, I believe that price, cost per hour, variety, speed and efficiency, that's still the (sales) chauffeur. But I believe 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)