By Allison Lampert

LAS VEGAS, Oct 22 (Reuters) - At the world’s greatest industry show in Las Vegas high-end jets are drawing purchasers with their streamlined shapes, luxurious cabins - and increasingly, their use of alternative fuels.

Fuel manufacturers and jetmakers are keen to showcase novel forms of air travel fuel considered less hazardous to the environment, from utilized cooking oil to the distinctly less glamorous meat waste.

Business jet operators, like airline companies, have acquiesced environmental pressure on aviation and committed to halving carbon emissions by 2050 compared with 2005.

Their hope is that embracing eco-friendly fuel to suppress emissions could make service jets more attractive to ecologically conscious purchasers - especially corporations facing questions over sustainability from investors or green campaign groups.

The accessibility of less polluting personal jets might likewise spare the rich and well-known the unfavorable promotion experienced by Britain’s Prince Harry and his partner 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 most recent waste-based fuels consist of “fats, grease and oils that are by-products of the food market,” 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 display are anticipated to be powered by 150,000 gallons of other renewable fuel blends anticipated to be pumped at the show.

FLIGHT SHAMING

Private jets account for less than 0.1% of overall annual carbon emissions globally, however can produce, on average, up to 20 times more carbon emissions per passenger mile than jetliners, according to the London-based personal charter firm Victor.

Prince Harry has protected his occasional usage of personal jets to ensure his family’s safety, and has said that on the unusual events he does not fly commercially he offsets his emissions.

But planemakers state incidents such as the furore over his schedule have included fresh difficulties for a market already aiming to justify its contribution to cutting corporate costs.

"Incidents of flight shaming including making use of personal jets are regrettable when you consider that our industry has provided fuel performance enhancements of 40% over the previous 40 years,” said Bombardier Aviation President David Coleal.

Bombardier believes increased sustainable will assist the industry make inroads with corporations and wealthy buyers. According to market information, billionaires only have a 19% company jet ownership rate.

But even an image transformation - with jets sporting stickers like “this airplane flies on eco-friendly fuels” and organisers including alternative fuel pumps for visiting airplanes - is not likely to satisfy all critics at the Oct 22-24 luxury jet occasion.

Environmentalists and some analysts stay skeptical that biojetfuels, typically blended 50-50 with kerosene, will make a significant impact on public perceptions about high-end travel.

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

Demand from company jet operators for sustainable fuels now far surpasses supply and their interest might drive future production, Sherbacow said.

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

Corporate charter companies and specialists are also seeing more interest from customers who desire to buy 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 usage research study his business recently finished for a Fortune 500 business.

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