By Allison Lampert

LAS VEGAS, Oct 22 (Reuters) - At the world's most significant industry show in Las Vegas high-end jets are drawing buyers with their smooth silhouettes, luxurious cabins - and increasingly, their use of alternative fuels.

Fuel manufacturers and jetmakers are keen to showcase novel types of air travel fuel considered less damaging to the climate, from utilized cooking oil to the noticeably less attractive meat waste.

Business jet operators, like airline companies, have actually acquiesced ecological pressure on aviation and committed to halving carbon emissions by 2050 compared with 2005.

Their hope is that adopting renewable fuel to suppress emissions could make company jets more attractive to ecologically conscious purchasers - particularly corporations facing concerns over sustainability from shareholders or green campaign groups.

The availability of less contaminating personal jets might likewise spare the abundant 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 display screen in Las Vegas are using California-produced fuel from inedible beef tallow.

The current waste-based fuels consist of "fats, grease and oils that are by-products of the food industry," said Bryan Sherbacow, primary commercial 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 airplane 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 represent less than 0.1% of overall yearly carbon emissions internationally, however can produce, typically, up to 20 times more carbon emissions per passenger mile than jetliners, according to the London-based personal charter company Victor.

Prince Harry has defended his occasional usage of private jets to ensure his household's safety, and has actually stated that on the rare celebrations he does not fly commercially he offsets his emissions.

But planemakers state occurrences such as the furore over his itinerary have actually included fresh difficulties for a market already striving to justify its contribution to cutting business expenses.

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

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

But even an image transformation - with jets sporting stickers like "this aircraft flies on eco-friendly fuels" and organisers including alternative fuel pumps for checking out aircrafts - is not likely to satisfy all critics at the Oct 22-24 luxury jet occasion.

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

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

Demand from business jet operators for renewable fuels now far exceeds 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 consultants are also seeing more interest from consumers who wish 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 utilization research study his company recently finished for a Fortune 500 company.

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