By Allison Lampert

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

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

operators, like airline companies, have acquiesced environmental pressure on aviation and committed to halving carbon emissions by 2050 compared to 2005.

Their hope is that embracing eco-friendly fuel to curb emissions might make business jets more attractive to ecologically conscious buyers - specifically corporations facing concerns over sustainability from investors or green project groups.

The schedule of less polluting private jets might likewise spare the abundant and popular the negative publicity experienced by Britain's Prince Harry and his partner Meghan over a current private jet journey to southern France.

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

The latest waste-based fuels include "fats, grease and oils that are byproducts of the food industry," said Bryan Sherbacow, chief industrial 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 display 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 yearly carbon emissions globally, however can release, on average, as much as 20 times more carbon emissions per guest mile than jetliners, according to the London-based personal charter firm Victor.

Prince Harry has protected his periodic usage of private jets to guarantee his household's security, and has actually 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 schedule have actually added fresh difficulties for a market already aiming to justify its contribution to cutting business costs.

"Incidents of flight shaming including making use of personal jets are unfortunate when you think about that our industry has provided fuel efficiency enhancements of 40% over the past 40 years," stated Bombardier Aviation President David Coleal.

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

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

Environmentalists and some analysts stay skeptical that biojetfuels, normally mixed 50-50 with kerosene, will make a considerable influence on public understandings about luxury travel.

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

Demand from service jet operators for sustainable fuels now far exceeds 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 up to 150 million gallons by 2022.

Corporate charter companies and experts are likewise seeing more interest from clients who desire to purchase carbon credits to offset emissions from their flights.

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

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