By Allison Lampert

LAS VEGAS, Oct 22 (Reuters) - At the world's most significant market show in Las Vegas high-end jets are enticing buyers with their sleek shapes, luxurious cabins - and progressively, their use of alternative fuels.

Fuel producers and jetmakers are keen to display novel types of fuel considered less harmful to the environment, from utilized cooking oil to the noticeably less glamorous meat waste.

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

Their hope is that embracing sustainable fuel to suppress emissions could make company jets more attractive to ecologically conscious buyers - especially corporations facing questions over sustainability from investors or green campaign groups.

The schedule of less polluting private jets could likewise spare the rich and popular the unfavorable promotion experienced by Britain's Prince Harry and his other half Meghan over a current private jet journey to southern France.

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

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

"All of our product is inedible."

A few of the other 79 aircraft on display screen are expected to be powered by 150,000 gallons of other eco-friendly fuel mixes anticipated to be pumped at the program.

FLIGHT SHAMING

Private jets account for less than 0.1% of total annual carbon emissions globally, but can discharge, usually, up to 20 times more carbon emissions per passenger mile than jetliners, according to the London-based personal charter firm Victor.

Prince Harry has actually defended his occasional use of personal jets to ensure his household's safety, and has stated that on the uncommon celebrations he does not fly commercially he offsets his emissions.

But planemakers say occurrences such as the furore over his schedule have included fresh difficulties for a market currently aiming to validate its contribution to cutting corporate expenses.

"Incidents of flight shaming including the usage of personal jets are unfortunate when you think about that our industry has delivered fuel effectiveness enhancements of 40% over the previous 40 years," said Bombardier Aviation President David Coleal.

Bombardier believes increased sustainable fuel usage will help the market make inroads with corporations and wealthy buyers. According to market data, billionaires only 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 checking out aircrafts - is unlikely to satisfy all critics at the Oct 22-24 luxury jet event.

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

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

Demand from organization jet operators for sustainable 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, could broaden production up to 150 million gallons by 2022.

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

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

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