By Allison Lampert

LAS VEGAS, Oct 22 (Reuters) - At the world's most significant market show in Las Vegas high-end jets are tempting purchasers with their streamlined silhouettes, plush cabins - and significantly, their usage of alternative fuels.

Fuel producers and jetmakers are keen to showcase novel types of air travel fuel deemed less damaging to the environment, from utilized cooking oil to the definitely less glamorous meat waste.

Business jet operators, like airlines, have acquiesced environmental pressure on air travel and committed to halving carbon emissions by 2050 compared to 2005.

Their hope is that adopting sustainable fuel to suppress emissions might make organization jets more appealing to environmentally conscious buyers - especially corporations dealing with questions over sustainability from investors or green campaign groups.

The availability of less contaminating private jets might likewise spare the rich and popular the negative promotion experienced by Britain's Prince Harry and his spouse Meghan over a current personal jet trip to southern France.

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

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

"All of our product is inedible."

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

FLIGHT SHAMING

Private jets represent less than 0.1% of total annual carbon emissions globally, but can discharge, typically, as much as 20 times more carbon emissions per traveler mile than jetliners, according to the London-based personal charter company Victor.

Prince Harry has actually protected his occasional use of private jets to guarantee his family's safety, and has said that on the rare events he does not fly commercially he offsets his emissions.

But planemakers state events such as the furore over his schedule have actually added fresh difficulties for a market already making every effort to justify its contribution to cutting corporate costs.

"Incidents of flight shaming including using personal jets are unfortunate when you think about that our industry has actually provided fuel efficiency enhancements of 40% over the previous 40 years," said Bombardier Aviation President David Coleal.

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

But even an image makeover - with jets sporting stickers like "this airplane flies on sustainable fuels" and organisers adding alternative fuel pumps for going to planes - is not likely to please all critics at the Oct 22-24 luxury jet event.

Environmentalists and some experts stay hesitant that biojetfuels, usually mixed 50-50 with kerosene, will make a considerable influence on public understandings about luxury travel.

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

Demand from company jet operators for sustainable fuels now far goes beyond supply and their interest might drive future production, Sherbacow said.

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

Corporate charter companies and experts are also seeing more interest from clients who want 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 role in a business jet usage study his company just recently completed for a Fortune 500 business.

"At the end of the day, I think that rate, cost per hour, range, speed and performance, that's still the (sales) chauffeur. But I believe people 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)