By Allison Lampert

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

Fuel producers and jetmakers are eager to showcase unique types of aviation fuel considered less hazardous to the climate, from utilized cooking oil to the noticeably less glamorous meat waste.

Business jet operators, like airline companies, have actually bowed to environmental pressure on air travel and committed to cutting in half carbon emissions by 2050 compared with 2005.

Their hope is that adopting sustainable fuel to curb emissions could make organization jets more appealing to environmentally conscious buyers - especially corporations dealing with concerns over sustainability from investors or green project groups.

The schedule of less polluting private jets might likewise spare the rich and popular the unfavorable 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 utilizing California-produced fuel from inedible beef tallow.

The most recent waste-based fuels include "fats, grease and oils that are byproducts of the food industry," said Bryan Sherbacow, primary business officer of Boston-based biofuel manufacturer World Energy, which produces fuel from meat waste utilized 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 sustainable fuel blends expected to be pumped at the program.

FLIGHT SHAMING

Private jets account for less than 0.1% of total annual carbon emissions globally, however can produce, typically, approximately 20 times more carbon emissions per passenger mile than jetliners, according to the London-based personal charter company Victor.

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

But planemakers state incidents such as the furore over his schedule have added for a market currently aiming to validate its contribution to cutting business expenses.

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

Bombardier thinks increased sustainable fuel use will help the industry make inroads with corporations and wealthy purchasers. According to industry information, billionaires just have a 19% service jet ownership rate.

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

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

"No quantity of Jatropha or Brazil-nut fuel can make service jets look eco-friendly," said aviation analyst Richard Aboulafia.

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

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

Brian Proctor, CEO of Mente Group, a U.S. consultancy, stated emissions played a role in a business jet utilization study his business just recently finished for a Fortune 500 business.

"At the end of the day, I believe that price, expense per hour, range, speed and efficiency, that's still the (sales) driver. But I believe individuals are becoming more knowledgeable about the sustainability of operations and how it affects the world." (Reporting By Allison Lampert, Editing by Tim Hepher and Alexandra Hudson)