By Allison Lampert

LAS VEGAS, Oct 22 (Reuters) - At the world's most significant market show in Las Vegas luxury jets are tempting buyers with their streamlined silhouettes, luxurious cabins - and progressively, their usage of alternative fuels.

Fuel producers and jetmakers are keen to display unique forms of aviation fuel considered less harmful to the climate, from used cooking oil to the distinctly less glamorous meat waste.

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

Their hope is that embracing eco-friendly fuel to suppress emissions might make business jets more attractive to environmentally conscious buyers - specifically corporations dealing with concerns over sustainability from investors or green project groups.

The schedule of less contaminating private jets could likewise spare the rich and well-known the unfavorable promotion experienced by Britain's Prince Harry and his better half Meghan over a recent private 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 market," stated Bryan Sherbacow, chief commercial officer of Boston-based biofuel manufacturer World Energy, which produces fuel from meat waste used by Gulfstream.

"All of our product is inedible."

A few of the other 79 airplane on display screen are expected to be powered by 150,000 gallons of other eco-friendly fuel blends anticipated to be pumped at the program.

FLIGHT SHAMING

Private jets account for less than 0.1% of overall yearly carbon emissions worldwide, but can discharge, typically, approximately 20 times more carbon emissions per traveler mile than jetliners, according to the London-based private charter company Victor.

Prince Harry has actually safeguarded his occasional usage of private jets to ensure his family's safety, and has actually stated that on the unusual occasions he does not fly commercially he offsets his emissions.

But planemakers say events such as the furore over his schedule have actually included fresh obstacles for an industry currently aiming to validate its contribution to cutting corporate costs.

"Incidents of flight shaming including using private jets are regrettable when you think about that our industry has provided fuel performance enhancements of 40% over the previous 40 years," said Bombardier Aviation President David Coleal.

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

But even an image remodeling - with jets sporting stickers like "this airplane flies on eco-friendly fuels" and organisers including alternative fuel pumps for checking out aircrafts - is not likely to satisfy all critics at the Oct 22-24 high-end jet occasion.

Environmentalists and some analysts remain doubtful that biojetfuels, normally blended 50-50 with kerosene, will make a substantial effect on public perceptions about luxury travel.

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

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

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 companies and consultants are likewise seeing more interest from consumers who want to purchase carbon credits to offset emissions from their flights.

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

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