By Allison Lampert

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

Fuel producers and jetmakers are eager to showcase novel forms of air travel fuel considered less harmful to the climate, from utilized cooking oil to the noticeably less attractive meat waste.

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

Their hope is that adopting eco-friendly fuel to suppress emissions could make service jets more appealing to environmentally conscious buyers - specifically corporations facing questions over sustainability from investors or green campaign groups.

The availability of less polluting private jets could also spare the abundant and well-known the negative publicity experienced by Harry and his better half 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 newest waste-based fuels consist of "fats, grease and oils that are byproducts of the food market," said Bryan Sherbacow, primary industrial officer of Boston-based biofuel producer World Energy, which produces fuel from meat waste used by Gulfstream.

"All of our item is inedible."

A few of the other 79 aircraft on display are expected to be powered by 150,000 gallons of other eco-friendly fuel mixes anticipated to be pumped at the program.

FLIGHT SHAMING

Private jets account for less than 0.1% of overall yearly carbon emissions globally, but can give off, typically, approximately 20 times more carbon emissions per passenger mile than jetliners, according to the London-based private charter company Victor.

Prince Harry has actually defended his occasional usage of private jets to guarantee his family's safety, and has actually said that on the unusual celebrations he does not fly commercially he offsets his emissions.

But planemakers say occurrences such as the furore over his itinerary have actually added fresh obstacles for a market currently making every effort to justify its contribution to cutting business expenses.

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

Bombardier believes increased sustainable fuel use will help the market make inroads with corporations and rich buyers. According to industry data, billionaires just 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 including alternative fuel pumps for visiting aircrafts - is unlikely to please all critics at the Oct 22-24 high-end jet occasion.

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

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

Demand from organization jet operators for eco-friendly fuels now far exceeds supply and their interest might drive future production, Sherbacow said.

World Energy, which produces 40 million gallons of biofuel at its California plant, might broaden production up to 150 million gallons by 2022.

Corporate charter business and specialists are likewise seeing more interest from consumers who wish to purchase carbon credits to offset emissions from their flights.

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

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