REBECCA Webb Carranza is credited with playing an important role in popularising the tortilla chip. In the late 1940s, the Carranza family's Los Angeles-based El Zarape Tortilla Factory began making tortillas by machine, but at first, many of the corn and flour disks were misshapen and had to be thrown away.

Carranza took some of the rejects home for a party, cut them into triangles and fried them. The result was a huge hit with her guests and she began selling them for 10 cents a bag. By the 1960s the Tort Chips, as they were called, were El Zarape's main business.

Carranza, meanwhile, was one of about 20 industry innovators honoured with the Golden Tortilla in 1994 and 1995, the only years the award was given, said Mario Orozco, an employee of Irving, Texas-based Azteca Milling, who created the honour.

Rebecca Webb was born in Durango, Mexico, on November 29, 1907, to a Utah mining engineer who was working for an American mining company and his Mexicanborn wife.

She was a teenager when the mining company moved her family to El Paso, Texas, and after her parents divorced she moved to Los Angeles with her mother.

She met her husband, Mario Carranza, on a blind date and they married in 1931.

Inspired by a friend's successful tortilla shop in east Los Angeles, the Carranzas opened their factory in the early 1940s.

After the couple divorced in 1951, Carranza's husband took over the business. His tortilla chip factory closed in 1967, partly because of competition from national companies.

Rebecca Carranza died at the age of 98 and is survived by two sons, 12 grandchildren, 19 great-grandchildren and two great-great-grandchildren.