By Allison Lampert

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

Fuel manufacturers and jetmakers are eager to showcase novel types of aviation fuel deemed less hazardous to the environment, from oil to the clearly less attractive meat waste.

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

Their hope is that embracing eco-friendly fuel to suppress emissions could make service jets more attractive to ecologically mindful buyers - especially corporations dealing with questions over sustainability from investors or green campaign groups.

The availability of less contaminating private jets might likewise spare the abundant and famous the negative publicity experienced by Britain's Prince Harry and his better half Meghan over a current private jet journey to southern France.

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

The latest waste-based fuels include "fats, grease and oils that are by-products of the food market," stated Bryan Sherbacow, primary business officer of Boston-based biofuel manufacturer 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 screen are expected to be powered by 150,000 gallons of other renewable fuel mixes anticipated to be pumped at the show.

FLIGHT SHAMING

Private jets account for less than 0.1% of overall yearly carbon emissions internationally, but can release, on average, approximately 20 times more carbon emissions per passenger mile than jetliners, according to the London-based private charter company Victor.

Prince Harry has actually protected his periodic usage of private jets to ensure his household's safety, and has said 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 included fresh obstacles for a market already striving to justify its contribution to cutting business expenses.

"Incidents of flight shaming involving the usage of personal jets are unfortunate when you consider that our market has actually provided fuel performance enhancements of 40% over the past 40 years," said Bombardier Aviation President David Coleal.

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

But even an image makeover - with jets sporting sticker labels like "this airplane flies on renewable fuels" and organisers including alternative fuel pumps for checking out planes - is not likely to satisfy all critics at the Oct 22-24 luxury jet event.

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

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

Demand from service jet operators for eco-friendly fuels now far exceeds 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 approximately 150 million gallons by 2022.

Corporate charter companies and consultants are likewise seeing more interest from consumers who wish to purchase carbon credits to offset emissions from their flights.

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

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