By Allison Lampert

LAS VEGAS, Oct 22 (Reuters) - At the world's biggest market show in Las Vegas high-end jets are tempting purchasers with their smooth shapes, plush cabins - and progressively, their use of alternative fuels.

Fuel producers and jetmakers are eager to display novel types of air travel fuel deemed less hazardous to the climate, from used cooking oil to the clearly less glamorous meat waste.

Business jet operators, like airlines, have acquiesced ecological pressure on air travel and committed to cutting in half carbon emissions by 2050 compared with 2005.

Their hope is that adopting eco-friendly fuel to curb emissions could make company jets more appealing to ecologically mindful buyers - particularly corporations dealing with concerns over sustainability from shareholders or green project groups.

The schedule of less contaminating personal jets could also spare the rich and popular the unfavorable promotion experienced by Britain's Prince Harry and his better half Meghan over a recent personal jet trip to southern France.

Five Gulfstream jets on display 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 industry," stated Bryan Sherbacow, chief commercial officer of Boston-based biofuel producer World Energy, which produces fuel from meat waste used by Gulfstream.

"All of our item is inedible."

A few of the other 79 aircraft on screen are expected to be powered by 150,000 gallons of other sustainable fuel blends anticipated to be pumped at the program.

FLIGHT SHAMING

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

Prince Harry has actually protected his periodic use of personal jets to guarantee his household's security, and has actually stated that on the unusual occasions he does not fly commercially he offsets his emissions.

But planemakers state incidents such as the furore over his itinerary have actually added fresh challenges for an industry currently striving to validate its contribution to cutting business expenses.

"Incidents of flight shaming including the usage of private jets are regrettable when you think about that our market has actually provided fuel efficiency improvements of 40% over the previous 40 years," stated Bombardier Aviation President David Coleal.

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

But even an image remodeling - with jets sporting sticker labels like "this aircraft flies on eco-friendly fuels" and organisers adding alternative fuel pumps for going to planes - is not likely to please all critics at the Oct 22-24 luxury jet occasion.

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

"No amount of jatropha curcas or Brazil-nut fuel can make company jets look eco-friendly," stated air travel analyst Richard Aboulafia.

Demand from company jet operators for renewable fuels now far goes beyond supply and their interest could drive future production, Sherbacow stated.

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

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

Brian Proctor, CEO of Mente Group, a U.S. consultancy, stated emissions contributed in a business jet utilization study his business recently completed for a Fortune 500 business.

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