By Allison Lampert

LAS VEGAS, Oct 22 (Reuters) - At the world's greatest industry show in Las Vegas luxury 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 forms of air travel fuel deemed less damaging to the environment, from utilized cooking oil to the distinctly less glamorous meat waste.

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

Their hope is that adopting renewable fuel to curb emissions might make organization jets more attractive to environmentally conscious buyers - especially corporations facing questions over sustainability from shareholders or green campaign groups.

The availability of less contaminating private jets could also spare the abundant and famous the negative publicity experienced by Britain's Prince Harry and his wife Meghan over a current personal jet journey to southern France.

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

The most current waste-based fuels consist of "fats, grease and oils that are by-products of the food market," said Bryan Sherbacow, chief industrial 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 airplane on screen are expected to be powered by 150,000 gallons of other sustainable fuel blends expected to be pumped at the program.

FLIGHT SHAMING

Private jets account for less than 0.1% of total annual carbon emissions globally, but can emit, on average, as much as 20 times more carbon emissions per guest mile than jetliners, according to the London-based private charter firm Victor.

Prince Harry has defended his periodic usage of personal jets to ensure his household's security, and has actually stated 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 added fresh obstacles for an industry already striving to justify its contribution to cutting corporate costs.

"Incidents of flight shaming including making use of personal jets are unfortunate when you consider that our market has delivered fuel performance improvements of 40% over the previous 40 years," said Bombardier Aviation President David Coleal.

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

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

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

"No quantity of Jatropha or Brazil-nut fuel can make business jets look eco-friendly," stated air travel analyst Richard Aboulafia.

Demand from business jet operators for eco-friendly 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 consultants are also seeing more interest from customers who want to purchase carbon credits to offset emissions from their flights.

Brian Proctor, CEO of Mente Group, a U.S. consultancy, said emissions played a function in a corporate jet usage research study his business just recently finished for a Fortune 500 business.

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