摘要:
Disclosed are a dry starch used in a field of biodegradable plastics, and a preparation method and use thereof. The dry starch used in a field of biodegradable plastics is prepared by removing moisture from a commercial starch, wherein the dry starch has a moisture content of not greater than 5 wt %; and starch granules have an internal organizational structure mainly in an amorphous form.
摘要:
This application provides a method of using a highly clarified and clean lignin, derived from a specific biorefinery process to make a starch foam and products of the same. The lignin can be used as a low cost filler substitute for starch and other substrates that are currently employed in foam applications. The lignin has the right mechanical, physical, thermoplastic and barrier properties to enable easy handling and to impart improved properties such as UV resistance, water resistance and other physical parameters to starch foams.
摘要:
The present invention relates to thermally inhibited starch and starchy flours produced by heat treatment of native starch that is pre-dried where necessary to a dry matter content of more than or equal to 95% by weight, preferably 98% by weight, particularly preferably 99% by weight, wherein said starch, pre-dried where necessary, is heat treated in the presence of at least 0.1 percent by volume of oxygen at a product temperature in excess of 100° C. in a vibrating spiral conveyor.
摘要:
A method of producing corn starch by enzymatic process involving: soaking the corn; crushing the corn, separating and washing embryo; fine grinding; washing and drying fiber; separating and drying protein; washing, dewatering and drying the starch. An enzyme preparation is added before the step of washing, dewatering and drying the starch; the enzyme preparation is cellulose, or xylanase, or combination of the cellulose and the xylanase; and addition of the enzyme preparation is from 0.001% to 0.08% by weight of the corn. Based on the technology of traditional wet process, the method of the present invention comprises a step of adding enzyme preparation in the process of separating the corn, which improves the effect and the efficiency of mechanical separation, and further improves the purity and yield of the substance separated while also reducing the energy consumption.
摘要:
A method is provided for producing a dehydrated biopolymer powder, said method comprising the successive steps of: a) providing a filter cake comprising biopolymer material and 30 to 60 wt. % of water; b) contacting said filter cake with a pressurised gas to extract water from the filter cake, said pressurised gas having a pressure and a temperature below the critical point of the gas; c) separating water-containing pressurised gas from the dehydrated filter cake; and d) collecting a dehydrated biopolymer powder wherein the pressurised gas has a pressure of at least 0.6 MPa (6 bar) and up to 6 MPa (60 bar), and a temperature of 10 to 40° C.
摘要:
The present invention relates to a diluent and disintegrating composition containing an effective proportion of intact grains of amylose rich starch enclosed in a pre-gelatinised starch matrix. The present invention also relates to a process for producing this composition as well as its use in the manufacture of solid shapes.
摘要:
The present invention relates to a process for the preparation of grains of starch, which comprises granulating a mixture obtained by spraying 1 to 20%, and preferably 2 to 6% by weight, of a starch paste obtained from native starch under mild conditions, on to 99 to 80% by weight of grains of native starch, and drying, grinding and sieving the resulting product to give aggregates (grains) having a mean particle size of between 100 and about 500 .mu.m.
摘要:
A method for improving the properties of particles of a starch hydrolyzate product made by the partial hydrolysis of cereal and root based starches. Particles of starting material are blended with a volatile liquid other than water, and the resulting blend is compacted in a roller compactor without extraneous lubricant, to form a sheet. The sheet is broken into small particles which are sieved and dried. The resulting particles are non-spherical, appear crystalline under a light microscope and have a surface topography comprising cracks, crevices and fissures. These particles have good solubility, a bulk density comparable to the starting material, and no flow or dusting problems.