By Allison Lampert

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

Fuel producers and jetmakers are keen to showcase 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 acquiesced environmental pressure on air travel and committed to cutting in half carbon emissions by 2050 compared with 2005.

Their hope is that embracing eco-friendly fuel to suppress emissions might make company jets more attractive to ecologically mindful buyers - especially corporations facing concerns over sustainability from investors or green campaign groups.

The availability of less polluting personal jets might likewise spare the rich and well-known the negative promotion experienced by Britain's Prince Harry and his wife Meghan over a recent personal jet trip to southern France.

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

The current waste-based fuels include "fats, grease and oils that are by-products of the food industry," said Bryan Sherbacow, primary business officer of Boston-based biofuel producer World Energy, which produces fuel from meat waste used by .

"All of our item is inedible."

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

FLIGHT SHAMING

Private jets represent less than 0.1% of total annual carbon emissions internationally, however can produce, usually, up to 20 times more carbon emissions per guest mile than jetliners, according to the London-based personal charter company Victor.

Prince Harry has safeguarded his occasional use of personal jets to guarantee his family's safety, and has actually stated that on the unusual events he does not fly commercially he offsets his emissions.

But planemakers say incidents such as the furore over his schedule have actually included fresh challenges for a market already striving to justify its contribution to cutting corporate expenses.

"Incidents of flight shaming including using private jets are regrettable when you consider that our market has delivered fuel efficiency improvements of 40% over the past 40 years," said 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 data, billionaires only have a 19% company jet ownership rate.

But even an image remodeling - with jets sporting sticker labels like "this airplane flies on eco-friendly fuels" and organisers including alternative fuel pumps for visiting airplanes - is unlikely to please all critics at the Oct 22-24 luxury jet event.

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

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

Demand from company 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 as much as 150 million gallons by 2022.

Corporate charter business and experts are also seeing more interest from customers who wish 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 business jet utilization research study his company recently completed for a Fortune 500 business.

"At the end of the day, I believe that price, cost per hour, range, speed and efficiency, that's still the (sales) chauffeur. But I believe individuals are becoming more knowledgeable about the sustainability of operations and how it impacts the world." (Reporting By Allison Lampert, Editing by Tim Hepher and Alexandra Hudson)