A rapidly hydratable konjac flour is disclosed which is distinguishable from native konjac flour in that it gains at least least 60% of its potential peak viscosity within 10 minutes after dispersal into water at 25.degree. C., at least 80% of its potential peak viscosity within 20 minutes after dispersal into water at 25.degree. C., and from 80 to 100% of its potential peak viscosity within 30 minutes after dispersal into water at 25.degree. C. Methods for manufacturing rapidly hydratable konja...

Methods for producing cooked sweetpotato products suitable for freezing, baking or frying comprising adding to a cooked sweetpotato puree additional edible dry matter, tetrasodium pyrophosphate, a gelling agent and a calcium salt-water suspension sufficient to cause gelling, mixing the aforementioned ingredients together and forming the resulting mixture into desired shapes are disclosed. Structured sweetpotato food products comprising sweetpotato puree, added edible dry matter, tetrasodium pyro...

A rapidly hydratable konjac flour is disclosed which is distinguishable from native konjac flour in that it gains at least 60% of its potential peak viscosity within 10 minutes after dispersal into water at 25.degree. C., at least 80% of its potential peak viscosity within 20 minutes after dispersal into water at 25.degree. C., and from 80 to 100% of its potential peak viscosity within 30 minutes after dispersal into water at 25.degree. C. Methods for manufacturing rapidly hydratable konjac flou...

A method of removing acridity substances from Araceae tubers without cooking by first soaking the tubers in warm water to achieve maximum starch yield while leaving the starch ungelatinized followed by a dilute alkali treatment to achieve maximum removal of acridity substances.

A method of extracting konjac flour from the tubers of Amorphophallus konjac, wherein, in producing konjac flour by the wet comminution of the tubers of Amorphophallus konjac, the konjac flour separated after the comminution operation is submitted to further polishing to remove the tachiko (dust from Amorphophallus konjac) which adheres to the surface of the konjac flour.

A fibrous and granular konjak prepared from solidified konjak that can be suitably used as a material of processed foods or as a dietary food by itself is provided. If used for processed foods, it can give rise to any intended flavor and taste. A fibrous and granular konjak product is prepared by crushing a kneaded and solidified mixture of konjak roots and lime. It consists of granular and fibrous pieces that are about less than 6 mm long and contain 5 to 10% moisture.

This invention is for a process for production of flour from Jerusalem artichoke tubers. The tubers are reduced to particles having an average surface to volume ratio of not less than about 25 cm.sup.2 to 1 cm.sup.3 and the particles are exposed to water acidified to a pH of not greater than about 4. Thereafter the particles are subjected to a series of pressings at increasing pressures ending in a final pressing at a pressure of not less than about 6 atmospheres, gauge wherein between each pres...

A frozen sweet potato product is produced wherein unpeeled sweet potatoes are sliced in a direction perpendicular to their longitudinal axes to form slices of about one-quarter inch thickness. The sweet potato slices are blanched for about 1 to 1.5 minutes in water of about 200.degree. F. The blanched sweet potato slices are cooled to below 80.degree. F. Orange juice is applied to the cooled sweet potato slices. The individual sweet potato slices are then quick-frozen and packaged.

A method for manufacturing starting material for dried sweet potato chips comprises heating raw sweet potatoes at a temperature ranging from 70.degree. to 100.degree. C. for 180 to 8 minutes to adjust hardness of the sweet potatoes to 1,800 to 12,000 and then slicing the heated sweet potatoes to a desired thickness. The sweet potato slices are further subjected to a second heat treatment to convert starches present therein to .alpha.-starches and then dried as such or after freezing to obtain dr...

This invention provides methods for denaturing nucleic acids. The methods involve contacting a solution comprising double stranded nucleic acid with a surface having denaturation activity sufficient to produce denaturation within a period of not more than one hour.