By Allison Lampert

LAS VEGAS, Oct 22 (Reuters) - At the world's most significant industry show in Las Vegas luxury jets are enticing buyers with their smooth shapes, plush cabins - and progressively, their use of alternative fuels.

Fuel producers and jetmakers are eager to display unique kinds of air travel fuel considered less damaging to the environment, from used cooking oil to the noticeably less attractive meat waste.

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

Their hope is that adopting eco-friendly fuel to curb emissions could make company jets more attractive to environmentally mindful purchasers - especially corporations dealing with questions over sustainability from investors or green campaign groups.

The accessibility of less contaminating private jets could likewise spare the rich and famous the negative promotion experienced by Britain's Prince Harry and his spouse 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 most recent waste-based fuels consist of "fats, grease and oils that are by-products of the food market," stated Bryan Sherbacow, chief industrial 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 renewable fuel blends anticipated to be pumped at the show.

FLIGHT SHAMING

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

Prince Harry has actually safeguarded his periodic usage of private jets to ensure his family's security, and has actually said that on the uncommon 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 difficulties for a market already striving to validate its contribution to cutting corporate expenses.

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

Bombardier believes increased sustainable fuel usage will help the market make inroads with corporations and wealthy 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 aircraft flies on renewable fuels" and organisers adding alternative fuel pumps for checking out planes - is not likely to please all critics at the Oct 22-24 luxury jet event.

Environmentalists and some analysts stay hesitant that biojetfuels, normally combined 50-50 with kerosene, will make a considerable effect on public understandings about luxury travel.

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

Demand from business 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 expand production up to 150 million gallons by 2022.

Corporate charter business and specialists are also seeing more interest from consumers who want to buy carbon credits to offset emissions from their flights.

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

"At the end of the day, I think that price, cost per hour, variety, speed and performance, that's still the (sales) chauffeur. But I think individuals are ending up being more familiar with the sustainability of operations and how it affects the world." (Reporting By Allison Lampert, Editing by Tim Hepher and Alexandra Hudson)