By Allison Lampert

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

Fuel producers and jetmakers are eager to showcase novel kinds of aviation fuel considered less harmful to the environment, from utilized cooking oil to the distinctly less glamorous meat waste.

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

Their hope is that embracing eco-friendly fuel to curb emissions might make business jets more attractive to ecologically conscious buyers - specifically corporations facing concerns over sustainability from investors or green project groups.

The accessibility of less polluting personal jets could likewise spare the abundant and well-known the negative promotion experienced by Britain's Prince Harry and his partner Meghan over a current private jet journey to southern France.

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

The latest waste-based fuels consist of "fats, grease and oils that are by-products of the food industry," stated Bryan Sherbacow, primary business officer of Boston-based biofuel producer 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 screen are anticipated to be powered by 150,000 gallons of other sustainable fuel blends expected to be pumped at the show.

FLIGHT SHAMING

Private jets represent less than 0.1% of total yearly carbon emissions globally, but can release, on average, approximately 20 times more carbon emissions per guest mile than jetliners, according to the London-based private charter company Victor.

Prince Harry has actually defended his occasional use of private jets to ensure his family's security, and has actually stated that on the uncommon events he does not fly commercially he offsets his emissions.

But planemakers say events such as the furore over his travel plan have added fresh difficulties for an industry already aiming to justify its contribution to cutting business costs.

"Incidents of flight shaming involving making use of private jets are regrettable when you consider that our market has actually delivered fuel performance improvements of 40% over the past 40 years," stated Bombardier Aviation President David Coleal.

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

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

Environmentalists and some analysts stay hesitant that biojetfuels, usually blended 50-50 with kerosene, will make a considerable effect on public understandings about high-end travel.

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

Demand from business jet operators for eco-friendly fuels now far goes beyond supply and their interest could drive future production, Sherbacow said.

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

Corporate charter companies and experts are likewise seeing more interest from who want to buy carbon credits to balance out emissions from their flights.

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

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