By Allison Lampert

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

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

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

Their hope is that adopting eco-friendly fuel to suppress emissions could make company jets more appealing to ecologically mindful buyers - particularly corporations facing questions over sustainability from shareholders or green campaign groups.

The accessibility of less polluting private jets might also spare the abundant and famous the negative publicity experienced by Britain's Prince Harry and his better 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 consist of "fats, grease and oils that are byproducts of the food market," stated Bryan Sherbacow, primary business officer of Boston-based biofuel producer World Energy, which produces fuel from meat waste used by Gulfstream.

"All of our item is inedible."

Some of the other 79 aircraft on screen are expected to be powered by 150,000 gallons of other sustainable fuel mixes to be pumped at the program.

FLIGHT SHAMING

Private jets account for less than 0.1% of total yearly carbon emissions globally, however can give off, usually, approximately 20 times more carbon emissions per passenger mile than jetliners, according to the London-based personal charter company Victor.

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

But planemakers state events such as the furore over his travel plan have actually included fresh difficulties for an industry already aiming to justify its contribution to cutting business costs.

"Incidents of flight shaming including the use of personal jets are regrettable when you think about that our market has actually delivered fuel performance enhancements 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 buyers. According to industry information, billionaires just have a 19% service jet ownership rate.

But even an image transformation - with jets sporting stickers like "this aircraft flies on sustainable fuels" and organisers including alternative fuel pumps for visiting planes - is not likely to satisfy all critics at the Oct 22-24 high-end jet occasion.

Environmentalists and some experts stay doubtful that biojetfuels, typically blended 50-50 with kerosene, will make a significant effect on public understandings about high-end travel.

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

Demand from service jet operators for renewable fuels now far goes beyond 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 up to 150 million gallons by 2022.

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

Brian Proctor, CEO of Mente Group, a U.S. consultancy, said emissions played a function in a corporate jet utilization research study his company recently finished for a Fortune 500 business.

"At the end of the day, I believe that rate, cost per hour, range, speed and performance, that's still the (sales) chauffeur. But I believe people are becoming more mindful of the sustainability of operations and how it affects the world." (Reporting By Allison Lampert, Editing by Tim Hepher and Alexandra Hudson)