By Allison Lampert

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

Fuel producers and jetmakers are keen to showcase novel types of aviation fuel deemed less hazardous to the climate, from utilized cooking oil to the distinctly less glamorous meat waste.

Business jet operators, like airlines, have bowed to environmental pressure on air travel and committed to halving carbon emissions by 2050 compared with 2005.

Their hope is that embracing sustainable fuel to curb emissions could make organization jets more appealing to environmentally conscious buyers - especially corporations dealing with concerns over sustainability from shareholders or green campaign groups.

The availability of less polluting private jets might likewise spare the abundant and famous the negative publicity experienced by Britain's Prince Harry and his better half Meghan over a recent personal jet trip to southern France.

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

The current waste-based fuels consist of "fats, grease and oils that are byproducts of the food market," stated Bryan Sherbacow, primary commercial officer of Boston-based biofuel manufacturer World Energy, which produces fuel from meat waste utilized by Gulfstream.

"All of our item is inedible."

A few of the other 79 airplane on screen are expected to be powered by 150,000 gallons of other sustainable fuel mixes expected to be pumped at the show.

FLIGHT SHAMING

Private jets account for less than 0.1% of overall annual carbon emissions internationally, but can discharge, usually, approximately 20 times more carbon emissions per traveler mile than jetliners, according to the London-based private charter company Victor.

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

But planemakers state occurrences such as the furore over his travel plan have actually included fresh challenges for a market currently making every effort to justify its contribution to cutting corporate costs.

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

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

But even an image makeover - with jets sporting sticker labels like "this airplane flies on sustainable fuels" and organisers 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 doubtful that biojetfuels, normally mixed 50-50 with kerosene, will make a considerable influence on public understandings about luxury travel.

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

Demand from company jet operators for eco-friendly fuels now far surpasses supply and their interest could drive future production, Sherbacow said.

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 business and specialists are likewise seeing more interest from clients 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 business jet usage research study his company just recently completed for a Fortune 500 business.

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