By Allison Lampert

LAS VEGAS, Oct 22 (Reuters) - At the world’s most significant market show in Las Vegas high-end jets are enticing purchasers with their sleek silhouettes, plush cabins - and increasingly, their use of alternative fuels.

Fuel manufacturers and jetmakers are eager to display novel kinds of air travel fuel deemed less harmful to the climate, from used cooking oil to the clearly less attractive meat waste.

Business jet operators, like airline companies, have actually bowed to ecological pressure on air travel and committed to cutting in half carbon emissions by 2050 compared with 2005.

Their hope is that adopting sustainable fuel to suppress emissions could make business jets more attractive to ecologically mindful purchasers - specifically corporations facing concerns over sustainability from investors or green campaign groups.

The accessibility of less polluting private jets could likewise spare the rich and popular the negative publicity experienced by Britain’s Prince Harry and his spouse Meghan over a current private jet journey to southern France.

Five Gulfstream jets on 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 industry,” stated Bryan Sherbacow, chief commercial officer of Boston-based biofuel producer World Energy, which produces fuel from meat waste utilized by Gulfstream.

“All of our item is inedible.”

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

FLIGHT SHAMING

Private jets account for less than 0.1% of total yearly carbon emissions globally, but can give off, usually, as much as 20 times more carbon emissions per guest mile than jetliners, according to the London-based personal charter firm Victor.

Prince Harry has defended his occasional usage of personal jets to ensure his family’s safety, and has stated that on the unusual celebrations he does not fly commercially he offsets his emissions.

But planemakers state incidents such as the furore over his schedule have added fresh obstacles for an industry currently making every effort to justify its contribution to cutting corporate expenses.

“Incidents of flight shaming including the use of personal jets are unfortunate when you consider that our industry has actually delivered fuel efficiency enhancements of 40% over the past 40 years,” said Bombardier Aviation President David Coleal.

Bombardier believes increased sustainable fuel usage will help the market make inroads with corporations and wealthy purchasers. According to industry data, billionaires only have a 19% company jet ownership rate.

But even an image transformation - with jets sporting stickers like “this airplane flies on renewable fuels” and organisers including alternative fuel pumps for going to airplanes - is unlikely to please all critics at the Oct 22-24 high-end jet occasion.

Environmentalists and some experts stay doubtful that biojetfuels, usually mixed 50-50 with kerosene, will make a substantial effect on public understandings about high-end travel.

“No quantity of Jatropha or Brazil-nut fuel can make service jets look eco-friendly,” stated air travel analyst Richard Aboulafia.

Demand from company jet operators for renewable fuels now far surpasses 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 business and specialists are likewise seeing more interest from customers who wish to buy carbon credits to offset emissions from their flights.

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

“At the end of the day, I believe that cost, expense per hour, range, speed and efficiency, that’s still the (sales) chauffeur. But I think people 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)