By Lampert

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

Fuel producers and jetmakers are eager to display novel forms of aviation fuel considered less hazardous to the environment, from used cooking oil to the definitely less attractive meat waste.

Business jet operators, like airlines, have bowed to environmental pressure on aviation and devoted to cutting in half carbon emissions by 2050 compared to 2005.

Their hope is that adopting sustainable fuel to suppress emissions could make business jets more attractive to ecologically mindful buyers - especially corporations facing concerns over sustainability from shareholders or green project groups.

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

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

The newest waste-based fuels include "fats, grease and oils that are by-products of the food industry," stated Bryan Sherbacow, chief industrial officer of Boston-based biofuel manufacturer World Energy, which produces fuel from meat waste utilized by Gulfstream.

"All of our product is inedible."

A few of the other 79 aircraft on display are anticipated to be powered by 150,000 gallons of other sustainable fuel blends anticipated to be pumped at the show.

FLIGHT SHAMING

Private jets represent less than 0.1% of overall annual carbon emissions worldwide, however can discharge, typically, as much as 20 times more carbon emissions per traveler mile than jetliners, according to the London-based private charter firm Victor.

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

But planemakers say occurrences such as the furore over his travel plan have actually included fresh obstacles for a market already striving to validate its contribution to cutting business expenses.

"Incidents of flight shaming including making use of private jets are regrettable when you consider that our industry has actually provided fuel effectiveness enhancements 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 wealthy purchasers. According to industry information, billionaires just have a 19% organization jet ownership rate.

But even an image transformation - with jets sporting stickers like "this airplane flies on renewable fuels" and organisers including alternative fuel pumps for checking out planes - is unlikely to please all critics at the Oct 22-24 high-end jet event.

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

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

Demand from organization jet operators for sustainable 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 expand production approximately 150 million gallons by 2022.

Corporate charter companies and experts are likewise seeing more interest from clients who wish to purchase carbon credits to offset emissions from their flights.

Brian Proctor, CEO of Mente Group, a U.S. consultancy, stated emissions contributed in a business jet usage study his business recently completed for a Fortune 500 company.

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