By Allison Lampert

LAS VEGAS, Oct 22 (Reuters) - At the world's most significant market program in Las Vegas high-end jets are tempting buyers with their streamlined shapes, plush cabins - and progressively, their usage of alternative fuels.

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

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

Their hope is that embracing eco-friendly fuel to suppress emissions could make service jets more appealing to ecologically conscious buyers - specifically corporations dealing with questions over sustainability from shareholders or green project groups.

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

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

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

"All of our product is inedible."

A few of the other 79 aircraft on screen 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 annual carbon emissions globally, however can release, on average, as much as 20 times more carbon emissions per passenger mile than jetliners, according to the London-based private charter company Victor.

Prince Harry has actually safeguarded his periodic usage of private jets to guarantee his family's security, and has said that on the rare occasions he does not fly commercially he offsets his emissions.

But planemakers say occurrences such as the furore over his itinerary have actually added fresh challenges for an industry currently making every effort to validate its contribution to cutting corporate expenses.

"Incidents of flight shaming including the usage of private jets are unfortunate when you consider that our market has delivered fuel effectiveness improvements of 40% over the past 40 years," stated Bombardier Aviation President David Coleal.

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

But even an image remodeling - with jets sporting sticker labels like "this airplane flies on renewable fuels" and organisers adding alternative fuel pumps for checking out aircrafts - is unlikely to satisfy all critics at the Oct 22-24 luxury jet occasion.

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

"No amount of jatropha curcas or Brazil-nut fuel can make organization 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 stated.

World Energy, which produces 40 million gallons of at its California plant, could expand production approximately 150 million gallons by 2022.

Corporate charter companies and experts 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 contributed in a corporate jet usage study his company just recently finished for a Fortune 500 business.

"At the end of the day, I think that cost, expense per hour, variety, speed and efficiency, that's still the (sales) chauffeur. But I believe individuals are ending up being more conscious of the sustainability of operations and how it affects the planet." (Reporting By Allison Lampert, Editing by Tim Hepher and Alexandra Hudson)