By Allison Lampert

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

Fuel producers and are eager to showcase novel types of aviation fuel considered less harmful to the climate, 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 eco-friendly fuel to curb emissions could make business jets more attractive to environmentally mindful purchasers - particularly corporations dealing with questions over sustainability from investors or green project groups.

The availability of less polluting private jets could likewise spare the abundant and popular the negative publicity experienced by Britain's Prince Harry and his wife Meghan over a recent private jet trip to southern France.

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

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

"All of our item is inedible."

A few of the other 79 airplane on screen are expected to be powered by 150,000 gallons of other sustainable 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 discharge, usually, as much as 20 times more carbon emissions per traveler mile than jetliners, according to the London-based private charter company Victor.

Prince Harry has actually defended his periodic use of personal jets to ensure his household's safety, and has actually said that on the unusual events he does not fly commercially he offsets his emissions.

But planemakers state events such as the furore over his travel plan have included fresh challenges for a market already striving to justify its contribution to cutting corporate costs.

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

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

But even an image remodeling - with jets sporting stickers like "this airplane flies on sustainable fuels" and organisers adding alternative fuel pumps for visiting airplanes - is unlikely to please all critics at the Oct 22-24 high-end jet event.

Environmentalists and some analysts remain hesitant that biojetfuels, usually blended 50-50 with kerosene, will make a considerable influence on public perceptions about luxury travel.

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

Demand from service jet operators for renewable fuels now far goes beyond supply and their interest might drive future production, Sherbacow stated.

World Energy, which produces 40 million gallons of biofuel at its California plant, might broaden production approximately 150 million gallons by 2022.

Corporate charter companies and consultants are also seeing more interest from customers who wish to buy carbon credits to balance out emissions from their flights.

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

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