By Allison Lampert

LAS VEGAS, Oct 22 (Reuters) - At the world's most significant market program in Las Vegas luxury jets are luring purchasers with their sleek shapes, plush cabins - and progressively, their use of alternative fuels.

Fuel manufacturers and jetmakers are eager to showcase unique forms of air travel fuel considered less damaging to the environment, from utilized cooking oil to the noticeably less attractive meat waste.

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

Their hope is that adopting sustainable fuel to suppress emissions could make organization jets more attractive to ecologically mindful buyers - particularly corporations dealing with concerns over sustainability from shareholders or green campaign groups.

The schedule of less contaminating personal jets might also spare the rich and well-known the negative promotion experienced by Britain's Prince Harry and his better half Meghan over a current private jet journey to southern France.

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

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

"All of our item is inedible."

Some of the other 79 aircraft on display screen are expected to be powered by 150,000 gallons of other eco-friendly fuel mixes expected to be pumped at the show.

FLIGHT SHAMING

Private jets account for less than 0.1% of total yearly carbon emissions worldwide, but can discharge, usually, up to 20 times more carbon emissions per guest mile than jetliners, according to the London-based private charter firm Victor.

Prince Harry has actually safeguarded his occasional usage of personal jets to ensure his household's safety, and has actually said that on the unusual occasions he does not fly commercially he offsets his emissions.

But planemakers say occurrences such as the furore over his schedule have actually added fresh challenges for a market currently making every effort to validate its contribution to cutting corporate costs.

"Incidents of flight shaming involving using private jets are unfortunate when you consider that our market has provided fuel performance enhancements of 40% over the past 40 years," stated Bombardier Aviation President David Coleal.

Bombardier thinks increased sustainable fuel use will help the market make inroads with corporations and wealthy purchasers. According to market information, billionaires only have a 19% organization jet ownership rate.

But even an image transformation - with jets sporting sticker labels like "this airplane flies on eco-friendly fuels" and organisers including alternative fuel pumps for visiting aircrafts - is unlikely to please all critics at the Oct 22-24 high-end jet event.

Environmentalists and some analysts stay doubtful that biojetfuels, generally combined 50-50 with kerosene, will make a considerable influence on public understandings about high-end travel.

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

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

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

Corporate charter companies and consultants are likewise seeing more interest from clients 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 played a role 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 cost, cost per hour, range, speed and performance, that's still the (sales) driver. But I think people are ending up being more familiar with the sustainability of operations and how it impacts the world." (Reporting By Allison Lampert, Editing by Tim Hepher and Alexandra Hudson)