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By Allison Lampert

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

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

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

Their hope is that adopting sustainable fuel to curb emissions might make organization jets more attractive to environmentally conscious purchasers - especially corporations facing questions over sustainability from shareholders or green project groups.

The accessibility of less polluting private jets might also spare the abundant and popular the negative publicity experienced by Britain's Prince Harry and his spouse Meghan over a current private jet trip to southern France.

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

The current waste-based fuels include "fats, grease and oils that are byproducts of the food market," said Bryan Sherbacow, chief industrial officer of Boston-based biofuel producer World Energy, which produces fuel from meat waste used by Gulfstream.

"All of our product is inedible."

Some of the other 79 airplane on screen are anticipated to be powered by 150,000 gallons of other renewable fuel mixes anticipated to be pumped at the program.

FLIGHT SHAMING

Private jets represent less than 0.1% of total yearly carbon emissions worldwide, but can produce, usually, 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 defended his periodic use of private jets to ensure his household's security, and has actually stated that on the unusual celebrations he does not fly commercially he offsets his emissions.

But planemakers say occurrences such as the furore over his schedule have added fresh challenges for an industry already striving to justify its contribution to cutting corporate costs.

"Incidents of flight shaming including making use of personal jets are unfortunate when you think about that our market has delivered fuel effectiveness improvements of 40% over the past 40 years," said Bombardier Aviation President David Coleal.

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

But even an image remodeling - with jets sporting stickers like "this airplane flies on sustainable fuels" and organisers including alternative fuel pumps for visiting aircrafts - is not likely to please all critics at the Oct 22-24 high-end jet event.

Environmentalists and some analysts remain doubtful that biojetfuels, generally combined 50-50 with kerosene, will make a substantial effect on public perceptions about luxury travel.

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

Demand from company 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 approximately 150 million gallons by 2022.

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

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

"At the end of the day, I think that cost, cost per hour, range, speed and performance, that's still the (sales) driver. But I believe people 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)