By Allison Lampert

LAS VEGAS, Oct 22 (Reuters) - At the world's most significant market show in Las Vegas luxury jets are drawing purchasers with their streamlined silhouettes, luxurious cabins - and increasingly, their use of alternative fuels.

Fuel manufacturers and jetmakers are eager to display novel forms of air travel fuel considered less hazardous to the environment, from used cooking oil to the distinctly less glamorous meat waste.

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

Their hope is that embracing renewable fuel to curb emissions might make organization jets more attractive to ecologically mindful purchasers - specifically corporations dealing with questions over sustainability from shareholders or green project groups.

The accessibility of less polluting personal jets could likewise spare the abundant and popular the negative promotion experienced by Britain's Prince Harry and his better half Meghan over a recent personal jet journey to southern France.

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

The most current waste-based fuels include "fats, grease and oils that are by-products of the food industry," stated Bryan Sherbacow, chief commercial officer of Boston-based biofuel manufacturer World Energy, which produces fuel from meat waste used by Gulfstream.

"All of our product is inedible."

Some of the other 79 airplane on display are expected to be powered by 150,000 gallons of other renewable fuel blends anticipated to be pumped at the show.

FLIGHT SHAMING

Private jets represent less than 0.1% of overall yearly carbon emissions globally, however can give off, typically, as much as 20 times more per traveler mile than jetliners, according to the London-based private charter company Victor.

Prince Harry has defended his occasional usage of personal jets to ensure his household's security, and has actually said that on the uncommon celebrations he does not fly commercially he offsets his emissions.

But planemakers say events such as the furore over his itinerary have included fresh difficulties for a market already striving to justify its contribution to cutting corporate expenses.

"Incidents of flight shaming including the use of private jets are unfortunate when you think about that our industry has actually delivered fuel performance improvements of 40% over the previous 40 years," stated Bombardier Aviation President David Coleal.

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

But even an image remodeling - with jets sporting stickers like "this aircraft flies on sustainable fuels" and organisers including alternative fuel pumps for visiting aircrafts - is unlikely to satisfy all critics at the Oct 22-24 high-end jet event.

Environmentalists and some experts remain hesitant that biojetfuels, typically blended 50-50 with kerosene, will make a considerable influence on public perceptions about luxury travel.

"No amount of Jatropha or Brazil-nut fuel can make organization jets look eco-friendly," stated aviation expert Richard Aboulafia.

Demand from business jet operators for renewable 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 expand production approximately 150 million gallons by 2022.

Corporate charter companies and consultants are likewise seeing more interest from clients who desire to purchase carbon credits to balance out emissions from their flights.

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

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