By Allison Lampert

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

Fuel producers and jetmakers are eager to showcase unique types of aviation fuel considered less damaging to the environment, from used cooking oil to the noticeably less attractive meat waste.

Business jet operators, like airlines, have actually acquiesced ecological pressure on aviation and committed to cutting in half carbon emissions by 2050 compared to 2005.

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

The availability of less polluting private jets might likewise spare the rich and well-known the negative publicity experienced by Britain's Prince Harry and his better half Meghan over a current personal jet journey to southern France.

Five Gulfstream jets on screen in Las Vegas are using 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 industrial officer of Boston-based biofuel producer World Energy, which produces fuel from meat waste used by Gulfstream.

"All of our item is inedible."

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

FLIGHT SHAMING

Private jets account for less than 0.1% of overall yearly carbon emissions worldwide, but can release, on average, up to 20 times more carbon emissions per traveler mile than jetliners, according to the London-based private charter firm Victor.

Prince Harry has safeguarded his occasional usage of personal jets to ensure his family's security, and has actually stated that on the uncommon celebrations he does not fly commercially he offsets his emissions.

But planemakers state events such as the furore over his itinerary have actually added fresh difficulties for an industry already striving 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 industry has delivered fuel performance enhancements of 40% over the previous 40 years," said Bombardier Aviation President David Coleal.

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

But even an image transformation - with jets sporting sticker labels like "this aircraft flies on renewable fuels" and organisers adding alternative fuel pumps for going to planes - is not likely to please all critics at the Oct 22-24 high-end jet occasion.

Environmentalists and some analysts stay doubtful that biojetfuels, normally combined 50-50 with kerosene, will make a considerable impact on public perceptions about high-end travel.

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

Demand from service jet operators for renewable 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, might expand production as much as 150 million gallons by 2022.

Corporate charter companies and consultants are also 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, played a role in a corporate jet utilization study his business just recently finished for a Fortune 500 company.

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