By Allison Lampert

LAS VEGAS, Oct 22 (Reuters) - At the world's most significant industry show in Las Vegas high-end jets are enticing buyers with their smooth silhouettes, plush cabins - and increasingly, their usage of alternative fuels.

Fuel producers and jetmakers are eager to display unique kinds of air travel fuel considered less damaging to the environment, from utilized cooking oil to the definitely less glamorous meat waste.

Business jet operators, like airlines, have bowed to ecological pressure on aviation and committed to halving carbon emissions by 2050 compared to 2005.

Their hope is that adopting eco-friendly fuel to suppress emissions could make service jets more appealing to ecologically conscious purchasers - particularly corporations facing concerns over sustainability from shareholders or green campaign groups.

The availability of less polluting private jets could likewise spare the abundant and popular the unfavorable promotion 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 utilizing California-produced fuel from inedible beef tallow.

The current waste-based fuels consist of "fats, grease and oils that are byproducts of the food industry," stated Bryan Sherbacow, primary commercial 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 eco-friendly fuel mixes anticipated to be pumped at the program.

FLIGHT SHAMING

Private jets represent less than 0.1% of overall annual carbon emissions globally, but can discharge, usually, as much as 20 times more carbon emissions per guest mile than jetliners, according to the London-based private charter company Victor.

Prince Harry has actually protected his occasional usage of personal jets to guarantee his household's safety, and has stated that on the uncommon events he does not fly commercially he offsets his emissions.

But planemakers state events such as the furore over his schedule have added fresh difficulties for an industry already making every effort to justify its contribution to cutting business expenses.

"Incidents of flight shaming involving using personal jets are regrettable when you think about that our industry has actually delivered fuel effectiveness enhancements of 40% over the previous 40 years," stated Bombardier Aviation President David Coleal.

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

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

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

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

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

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

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

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

"At the end of the day, I believe that price, cost per hour, variety, speed and performance, that's still the (sales) chauffeur. But I think people are becoming more aware of the sustainability of operations and how it impacts the planet." (Reporting By Allison Lampert, Editing by Tim Hepher and Alexandra Hudson)