By Allison Lampert

LAS VEGAS, Oct 22 (Reuters) - At the world's biggest industry program in Las Vegas high-end jets are tempting buyers with their streamlined shapes, luxurious cabins - and progressively, their use of alternative fuels.

Fuel manufacturers and jetmakers are eager to showcase novel types of air travel fuel deemed less harmful to the environment, from used cooking oil to the distinctly 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 could make organization jets more attractive to ecologically conscious purchasers - specifically corporations facing concerns over sustainability from investors or green project groups.

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

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

The newest waste-based fuels consist of "fats, grease and oils that are by-products of the food industry," said Bryan Sherbacow, chief business 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 anticipated to be pumped at the program.

FLIGHT SHAMING

Private jets account for less than 0.1% of total annual carbon emissions internationally, but can release, usually, as much as 20 times more carbon emissions per traveler mile than jetliners, according to the London-based personal charter firm Victor.

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

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

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

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

But even an image remodeling - with jets sporting sticker labels like "this aircraft flies on renewable fuels" and organisers adding alternative fuel pumps for checking out aircrafts - is not likely to satisfy all critics at the Oct 22-24 high-end jet event.

Environmentalists and some experts stay skeptical that biojetfuels, typically combined 50-50 with kerosene, will make a considerable impact on public understandings about high-end travel.

"No quantity of jatropha curcas or Brazil-nut fuel can make organization jets look eco-friendly," said air travel analyst Richard Aboulafia.

Demand from business jet operators for renewable fuels now far goes beyond 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 up to 150 million gallons by 2022.

Corporate charter business and specialists are likewise seeing more interest from clients 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 corporate jet usage research study his business just recently completed for a Fortune 500 business.

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