By Allison Lampert

LAS VEGAS, Oct 22 (Reuters) - At the world's most significant industry show in Las Vegas high-end jets are luring purchasers with their sleek silhouettes, luxurious cabins - and progressively, their use of alternative fuels.

Fuel manufacturers and jetmakers are keen to display unique forms of air travel fuel deemed less damaging to the environment, from used cooking oil to the distinctly less attractive meat waste.

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

Their hope is that embracing eco-friendly fuel to suppress emissions could make service jets more attractive to ecologically conscious buyers - specifically corporations facing concerns over sustainability from shareholders or green project groups.

The schedule of less contaminating personal jets might also spare the abundant and famous the negative promotion experienced by Britain's Prince Harry and his spouse Meghan over a recent personal jet journey to southern France.

Five Gulfstream jets on screen 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 by-products of the food market," stated Bryan Sherbacow, primary business officer of Boston-based biofuel producer World Energy, which produces fuel from meat waste used by Gulfstream.

"All of our product is inedible."

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

FLIGHT SHAMING

Private jets account for less than 0.1% of total annual carbon emissions internationally, however can discharge, on average, as much as 20 times more carbon emissions per mile than jetliners, according to the London-based private charter company Victor.

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

But planemakers state occurrences such as the furore over his schedule have actually added fresh obstacles for an industry currently making every effort to validate its contribution to cutting business costs.

"Incidents of flight shaming including the usage of private jets are regrettable when you consider that our market has actually provided fuel performance enhancements of 40% over the previous 40 years," stated Bombardier Aviation President David Coleal.

Bombardier believes increased sustainable fuel usage will assist the industry make inroads with corporations and rich purchasers. According to industry information, billionaires only have a 19% business jet ownership rate.

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

Environmentalists and some analysts remain doubtful that biojetfuels, typically mixed 50-50 with kerosene, will make a substantial impact on public perceptions about high-end travel.

"No amount of Jatropha or Brazil-nut fuel can make service jets look eco-friendly," said air travel expert Richard Aboulafia.

Demand from service jet operators for eco-friendly 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 as much as 150 million gallons by 2022.

Corporate charter business and specialists are likewise seeing more interest from clients who wish to buy 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 usage research study his business recently finished for a Fortune 500 business.

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