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By Allison Lampert

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

Fuel manufacturers and jetmakers are eager to display novel forms of aviation fuel deemed less damaging to the environment, from used cooking oil to the noticeably less attractive meat waste.

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

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

The availability of less polluting personal jets might also spare the abundant and famous the unfavorable publicity experienced by Britain's Prince Harry and his spouse Meghan over a current personal jet trip 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 consist of "fats, grease and oils that are byproducts of the food market," said Bryan Sherbacow, chief commercial officer of Boston-based biofuel producer 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 screen are expected to be powered by 150,000 gallons of other sustainable fuel mixes expected to be pumped at the program.

FLIGHT SHAMING

Private jets represent less than 0.1% of total yearly carbon emissions worldwide, but 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 actually protected his periodic use of personal jets to guarantee his family's security, and has actually stated that on the uncommon celebrations he does not fly commercially he offsets his emissions.

But planemakers state incidents such as the furore over his schedule have actually included fresh challenges for an industry currently aiming to validate its contribution to cutting corporate expenses.

"Incidents of flight shaming involving using private jets are regrettable when you think about that our industry has actually delivered fuel efficiency enhancements of 40% over the past 40 years," stated Bombardier Aviation President David Coleal.

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

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

Environmentalists and some analysts remain hesitant that biojetfuels, generally blended 50-50 with kerosene, will make a significant impact on public understandings about high-end travel.

"No amount of Jatropha or Brazil-nut fuel can make organization jets look eco-friendly," said air travel analyst Richard Aboulafia.

Demand from company jet operators for eco-friendly 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, could broaden production approximately 150 million gallons by 2022.

business and consultants are also seeing more interest from customers who wish to purchase carbon credits to offset emissions from their flights.

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

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