By Allison Lampert

LAS VEGAS, Oct 22 (Reuters) - At the world's greatest industry program in Las Vegas high-end jets are luring buyers with their sleek shapes, luxurious cabins - and significantly, their usage of alternative fuels.

Fuel producers and jetmakers are eager to display unique kinds of aviation fuel considered less damaging to the environment, from used cooking oil to the distinctly less attractive meat waste.

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

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

The accessibility of less contaminating private jets might also spare the abundant and well-known the negative 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 consist of "fats, grease and oils that are byproducts of the food market," stated Bryan Sherbacow, primary commercial officer of Boston-based biofuel producer World Energy, which produces fuel from meat waste used by Gulfstream.

"All of our item is inedible."

Some of the other 79 airplane on display screen are expected to be powered by 150,000 gallons of other renewable fuel blends anticipated to be pumped at the show.

FLIGHT SHAMING

Private jets represent less than 0.1% of overall annual carbon emissions worldwide, but can emit, typically, approximately 20 times more carbon emissions per guest mile than jetliners, according to the London-based personal charter company Victor.

Prince Harry has safeguarded his periodic usage of private jets to ensure his family's safety, and has said that on the uncommon events he does not fly commercially he offsets his emissions.

But planemakers say events such as the furore over his travel plan have included fresh for a market currently aiming to validate its contribution to cutting corporate expenses.

"Incidents of flight shaming involving the use of personal jets are unfortunate when you think about that our industry has delivered fuel performance improvements 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 wealthy buyers. According to industry information, billionaires just have a 19% organization jet ownership rate.

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

Environmentalists and some experts remain skeptical that biojetfuels, normally combined 50-50 with kerosene, will make a considerable effect on public understandings about high-end 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 business jet operators for renewable 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 broaden production approximately 150 million gallons by 2022.

Corporate charter business 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 contributed in a corporate jet usage study his business recently completed for a Fortune 500 business.

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