By Allison Lampert

LAS VEGAS, Oct 22 (Reuters) - At the world's greatest industry program in Las Vegas high-end jets are luring buyers with their streamlined silhouettes, luxurious cabins - and progressively, their use of alternative fuels.

Fuel manufacturers and jetmakers are keen to novel types of aviation fuel considered less damaging to the environment, from used cooking oil to the distinctly less glamorous meat waste.

Business jet operators, like airlines, have actually bowed to environmental pressure on aviation and committed to cutting in half carbon emissions by 2050 compared with 2005.

Their hope is that embracing renewable fuel to curb emissions might make service jets more attractive to ecologically mindful purchasers - especially corporations dealing with concerns over sustainability from shareholders or green campaign groups.

The accessibility of less contaminating private jets might also spare the abundant and well-known the negative promotion experienced by Britain's Prince Harry and his other half Meghan over a recent personal jet journey to southern France.

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

The most current waste-based fuels consist of "fats, grease and oils that are by-products of the food market," stated Bryan Sherbacow, chief industrial 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 airplane on screen are anticipated to be powered by 150,000 gallons of other sustainable fuel blends expected to be pumped at the show.

FLIGHT SHAMING

Private jets account for less than 0.1% of total yearly carbon emissions globally, however can discharge, typically, up to 20 times more carbon emissions per guest mile than jetliners, according to the London-based private charter firm Victor.

Prince Harry has actually defended his occasional use of private jets to ensure his family's security, 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 added fresh obstacles for a market currently making every effort to validate its contribution to cutting corporate expenses.

"Incidents of flight shaming including making use of personal jets are unfortunate when you think about that our market has provided fuel effectiveness improvements 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 rich purchasers. According to industry information, billionaires just have a 19% company jet ownership rate.

But even an image transformation - with jets sporting stickers like "this airplane flies on renewable fuels" and organisers adding alternative fuel pumps for visiting aircrafts - is unlikely to please all critics at the Oct 22-24 high-end jet occasion.

Environmentalists and some experts stay hesitant that biojetfuels, typically combined 50-50 with kerosene, will make a substantial impact on public understandings about luxury travel.

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

Demand from company jet operators for sustainable fuels now far surpasses supply and their interest might drive future production, Sherbacow stated.

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

Corporate charter business and specialists are also 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 role in a corporate jet usage study his company recently finished for a Fortune 500 company.

"At the end of the day, I believe that rate, expense per hour, variety, speed and efficiency, that's still the (sales) motorist. But I believe individuals are becoming more familiar with the sustainability of operations and how it impacts the planet." (Reporting By Allison Lampert, Editing by Tim Hepher and Alexandra Hudson)