By Allison Lampert

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

Fuel manufacturers and jetmakers are eager to showcase unique kinds of aviation fuel deemed less hazardous to the environment, from used cooking oil to the clearly less glamorous meat waste.

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

Their hope is that embracing sustainable fuel to curb emissions could make service jets more attractive to environmentally conscious purchasers - specifically corporations dealing with questions over sustainability from shareholders or green campaign groups.

The accessibility of less contaminating private jets could likewise spare the rich and popular the unfavorable publicity experienced by Britain's Prince Harry and his partner Meghan over a recent private 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 include "fats, grease and oils that are by-products of the food market," said Bryan Sherbacow, chief industrial officer of Boston-based biofuel producer World Energy, which produces fuel from meat waste utilized by Gulfstream.

"All of our item is inedible."

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

FLIGHT SHAMING

Private jets account for less than 0.1% of overall annual carbon emissions internationally, however can discharge, usually, up to 20 times more carbon emissions per traveler mile than jetliners, according to the London-based private charter company Victor.

Prince Harry has actually safeguarded his periodic use of private jets to guarantee his household's security, and has said that on the rare occasions he does not fly commercially he offsets his emissions.

But state occurrences such as the furore over his travel plan have actually added fresh difficulties for a market already striving to validate its contribution to cutting business expenses.

"Incidents of flight shaming including using personal jets are unfortunate when you consider that our industry has actually delivered fuel effectiveness improvements of 40% over the past 40 years," said Bombardier Aviation President David Coleal.

Bombardier believes increased sustainable fuel use will assist the industry make inroads with corporations and rich purchasers. According to market data, billionaires just have a 19% company jet ownership rate.

But even an image remodeling - with jets sporting sticker labels like "this airplane flies on eco-friendly fuels" and organisers adding alternative fuel pumps for checking out aircrafts - is unlikely to please all critics at the Oct 22-24 high-end jet event.

Environmentalists and some experts remain hesitant that biojetfuels, generally mixed 50-50 with kerosene, will make a considerable influence on public perceptions about high-end travel.

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

Demand from business jet operators for renewable fuels now far exceeds supply and their interest could drive future production, Sherbacow said.

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 clients who wish to purchase carbon credits to offset emissions from their flights.

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

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