By Allison Lampert

LAS VEGAS, Oct 22 (Reuters) - At the world's biggest industry show in Las Vegas luxury jets are enticing buyers with their sleek shapes, plush cabins - and significantly, their use of alternative fuels.

Fuel producers and jetmakers are keen to showcase unique kinds of aviation fuel deemed less hazardous to the environment, from utilized cooking oil to the distinctly less attractive meat waste.

Business jet operators, like airline companies, have actually bowed to environmental pressure on aviation and dedicated to cutting in half carbon emissions by 2050 to 2005.

Their hope is that adopting sustainable fuel to suppress emissions could make business jets more appealing to ecologically mindful buyers - particularly corporations facing questions over sustainability from investors or green campaign groups.

The availability of less contaminating private jets might also spare the abundant and popular the unfavorable promotion experienced by Britain's Prince Harry and his other half Meghan over a current 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 current waste-based fuels consist of "fats, grease and oils that are by-products of the food industry," stated Bryan Sherbacow, primary commercial officer of Boston-based biofuel manufacturer World Energy, which produces fuel from meat waste utilized by Gulfstream.

"All of our product is inedible."

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

FLIGHT SHAMING

Private jets represent less than 0.1% of overall annual carbon emissions internationally, however can give off, usually, approximately 20 times more carbon emissions per traveler mile than jetliners, according to the London-based personal charter firm Victor.

Prince Harry has actually safeguarded his periodic use of private jets to guarantee 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 itinerary have actually included fresh difficulties for a market currently striving to validate its contribution to cutting corporate expenses.

"Incidents of flight shaming involving making use of personal jets are unfortunate when you consider that our market has provided fuel efficiency improvements of 40% over the previous 40 years," said Bombardier Aviation President David Coleal.

Bombardier thinks increased sustainable fuel usage will assist the market make inroads with corporations and rich buyers. According to industry data, billionaires just have a 19% business jet ownership rate.

But even an image remodeling - with jets sporting sticker labels like "this aircraft flies on sustainable fuels" and organisers adding alternative fuel pumps for checking out aircrafts - is not likely to please all critics at the Oct 22-24 luxury jet event.

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

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

Demand from business jet operators for eco-friendly fuels now far exceeds supply and their interest could 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 consultants are likewise seeing more interest from customers who want to purchase carbon credits to balance out emissions from their flights.

Brian Proctor, CEO of Mente Group, a U.S. consultancy, said emissions played a role in a business jet utilization research study his company recently completed for a Fortune 500 company.

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