By Allison Lampert

LAS VEGAS, Oct 22 (Reuters) - At the world's greatest industry show in Las Vegas luxury jets are luring purchasers with their smooth silhouettes, plush cabins - and significantly, their usage of alternative fuels.

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

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

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

The accessibility of less contaminating personal jets could likewise spare the abundant and popular the unfavorable promotion experienced by Britain's Prince Harry and his wife Meghan over a recent private jet trip to southern France.

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

The most recent waste-based fuels of "fats, grease and oils that are by-products of the food market," said Bryan Sherbacow, primary business officer of Boston-based biofuel manufacturer World Energy, which produces fuel from meat waste utilized by Gulfstream.

"All of our product is inedible."

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

FLIGHT SHAMING

Private jets represent less than 0.1% of overall yearly carbon emissions globally, but can produce, 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 actually defended his periodic use of private jets to ensure his household's security, and has actually said that on the uncommon events he does not fly commercially he offsets his emissions.

But planemakers say incidents such as the furore over his itinerary have actually included fresh difficulties for an industry already making every effort to justify its contribution to cutting business costs.

"Incidents of flight shaming involving making use of private jets are regrettable when you consider that our market has actually provided fuel performance improvements of 40% over the past 40 years," stated Bombardier Aviation President David Coleal.

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

But even an image makeover - with jets sporting sticker labels like "this airplane flies on renewable fuels" and organisers adding alternative fuel pumps for going to aircrafts - is unlikely to please all critics at the Oct 22-24 high-end jet event.

Environmentalists and some analysts stay skeptical that biojetfuels, typically blended 50-50 with kerosene, will make a substantial influence on public perceptions about luxury travel.

"No amount 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 renewable fuels now far goes beyond 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 up to 150 million gallons by 2022.

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

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

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