394 results about "Starch production" patented technology

The present invention relates to methods for producing high levels of alcohol during fermentation of plant material, and to the high alcohol beer produced. The method can include selecting plant material. Selecting can include excluding plant material that has been exposed to high temperatures or that has had high moisture content.

The invention is directed to methods of producing ethanol and decreasing residual starch production in a no cook fermentation comprising contacting granular starch containing substrates with a granular starch hydrolyzing enzyme, a protease, and a fermenting microorganism under suitable fermentation conditions at a temperature below the starch gelatinization temperature of the starch substrate to produce ethanol, wherein the ethanol production is increased and the amount of residual starch is decreased compared to a substantially similar method conducted without the protease.

A closed-loop cyclic utilization technology for the technological water in the procedure of preparing corn starch is disclosed. After the technological water is used to prepare sulfurous acid and immerse corn grains in it, it flows in technological water pool behind evaporation, condensing and regulating pH value. The technological water is also used for coarse grinding, fine grinding, and washing germinal buds and fibers. After two-stage air-floating separation, the water containing bran flows in protein depositing tank. The supernatant is drained in technological water pool and the protein deposit is recovered.

A potato block cutter is characterized by comprising a frame and a cutting trough. A push plate is disposed in the rear of the cutting trough. A horizontal guide bar is fixedly connected to the back of the push plate, and the other end of the horizontal guide bar is connected with a crank-rocker mechanism. The crank-rocker is driven by a motor to drive the horizontal guide bar and the push plate to move back and forth. The horizontal guide bar penetrates a guide rail welded on the frame. A tool positioner for cutting potato blocks is vertically disposed at the front end of the cutting trough. A collection hopper is arranged above the cutting trough. A horizontal collection baffle used for preventing material from falling to the back of the push plate is fixedly connected to the top end of the push plate. The potato block cutter is simple in structure and convenient to mount. The potato block cutter has the advantages that manpower is saved, production efficiency is improved, the problem that large potato blocks cannot pass a conveyor pump during the starch production process is solved, the potato block cutter operates at low speed and is safe to use, starch block is never crushed, starch loss is avoided, and the potato block cutter is simple in structure, light in weight and convenient to move.

The present invention is protein feed and its preparation process with potato slag. Protein feed is prepared with waste potato slag from starch production, and through squeezing to dewater, adding certain amount of supplementary material, inoculating certain amount of microbe seed and solid fermentation. The said preparation process is simple, and has high yield, low investment, low power consumption and other advantages. Thus obtained feed product has the fermented product, including microbe, metabolite and substrate utilized fully, and possesses the active components maintained, high amino acid content and high nutritious value.

The invention relates to a starch-producing process, in particular to a process for producing waxy corn starch. The technological process comprises the following steps: raw material purification, soaking, crushing, germ separation, fine grinding, fiber washing, protein separation, dewatering, drying, packaging and storage. The process is characterized in that the process can wetly grind and process the waxy corn starch containing 95 and 100 percent of pure natural amylopectin by utilizing processing equipment for producing common corn, taking waxy corn as raw material and adopting equipment matched with the process for producing waxy corn starch under the condition of increasing no manpower and material resources. The process solving the problem that the common process for producing waxy corn starch is unsuitable for producing waxy corn starch is an effective measure for reducing equipment investment, saving foreign exchange and increasing the added value of starch.

The invention belongs to the technical field of a squeezing processing method of malt syrup by adding enzymic preparation and a saccharifying method of squeezing substance in a malt sugar production technology. The invention has the main technical points of providing the squeezing processing method of the malt syrup raw material for producing ultrahigh malt syrup by adding the enzymic preparation and the saccharifying method of the squeezing substance of the malt syrup raw material using the added enzymic preparation. Compared with the traditional multienzyme cooperation method for producing the malt syrup without squeezing the malt syrup raw material, which is generally adopted at present, the needed saccharifying time is just 2/3-1/2 of the traditional saccharifying time at present when the malt syrup content of sacharifying liquid without squeezing the malt syrup raw material which is added with the enzyme preparation is reached more than 90%, and a starch production process and a spray liquefaction process are saved. The method disclosed by the invention can be used for producing the ultrahigh malt syrup with the malt syrup content being larger than 90%, and can also be used for producing common malt syrup with the malt syrup content being less than 60^ and the high malt syrup with the malt syrup content being 60-80 %.

The invention relates to a production technology of resistant rice starch. A production method for preparing resistant rice starch comprises the following steps: firstly, gelatinizing, debranching and crystallizing the rice starch, and then drying the extracted resistant rice starch to obtain the resistant rice starch; improving the content of amylase in the rice starch by debranching treatment; controlling the concentration of the gelatinized rice starch at 20-50%, the debranching enzyme content at 12-25U/g, the debranching temperature at 45-55 DEG C and the debranching time at 12-20 hours; crystallizing under the condition of 2-12 DEG C after debranching is ended, and then extracting the resistant rice starch, and drying under the condition of 50-70 DEG C. The excessive rice resources such as broken rice and early indica rice can be reasonably utilized, the economic value of the potential resources is increased, and the produced resistant rice starch can overcome the defects of the traditional dietary fibers. By adopting the production method disclosed by the invention, the deep processing utilization level of the rice starch in China can be improved, and the method has important significance on development of grain storage enterprises and rural economy.

The invention discloses an edible casing membrane with a blend of collagen fibers and starch. The edible casing membrane comprises the following components in percentage by weight: 35-50% of collagen fibers, 23-30% of starch, 2-5% of chitosan, 2-5% of sodium carboxymethyl cellulose (CMC), 16-22% of water, 2-5% of glycerol and 0.002% of glyoxal. According to the edible casing membrane with a blend of collagen fibers and starch, the casings produced by modified starch have better combination with meat stuffing, can meet the requirements of boiling at high temperature for long time and frying at high temperature above 180 DEG C of sausages, and are more suitable for breakfast sausages; compared with the previous invention, the casings have a significant improvement in resistance to boiling and frying at high temperature.

The invention provides a tuberous starch slurry-residue separation technique by screening and pressure filtration, which modifies slurry-residue separation procedures in tuberous starch production, and combines a vertical screen, a filter press and screen cleansing into a complete stereoscopic elevation difference technological process, wherein the vertical screen is used for separating residues from slurry by means of centrifugal force, the filter press is used for separating the residues from the slurry by means of extrusion force, and the vertical screen and the filter press in matched use can avoid the problem of poor cleanliness when tuberous residues are treated by vertical screen equipment, so that slurry-residue separation effect can be more effectively improved, feeding once is achieved, and multiple procedures including matched use of the emulsion slurry, the residues and process water, pressure drying of the tuberous residues can be completed by means of multiple screening and pressure filtration. Besides, power, automation, the amount of equipment, process water consumption and labor forces can be greatly reduced, the technique has the advantage of saving of operation cost and energy, emulsion slurry concentration is improved, starch extraction ratio is increased, and good technical effect is achieved.

The invention relates to a bacterial cellulose culture method which concretely comprises the steps of: inoculating acetobacter xylinum strain in a culture medium for recovery; after recovery, inoculating 2-20% of acetobacter xylinum strain in the culture medium; culturing the inoculated acetobacter xylinum strain by a shaking bed for 2-3 days under the condition of 100-180 rpm; and transferring the obtained fermentation liquor into a shallow tray and culturing for 2-5 days in a static state to obtain bacterial cellulose, wherein the culture temperature is 26-31 DEG C, the culture ventilation amount is 0.3-0.6vvm, and the culture medium is potato culture solution. The culture method has the characteristics that: potato waste residue obtained after starch production is firstly taken as the raw material of the culture medium, is treated by a simplest method and then is used as the culture medium for culturing the bacterial cellulose; the culture medium is low in cost and high in yield; meanwhile, the problem of recycling the potato waste residue can be solved, and the culture time is short; and in addition, the invention provides an important condition for stably culturing the bacterial cellulose in a large scale.

Methods of and systems for recovering starch before fermentation in a dry mill process and/or a wet mill process. The starch is able to be further purified. The starch can be used as a feedstock for biotech uses, such as, making one or more types of butanols. The method is able to recover starch from floury and horny endosperm. In some embodiments, the method includes liquefying milled corn and separating, purifying and recovering the starch in both floury and horny endosperm before fermentation. In some embodiments, the method includes subjecting the milled corn flour in a caustic condition and next recovering the starch before fermentation. In some embodiments, the method includes soaking/steeping the corn, grinding the corn and separating the germ from the starch in a wet mill similar condition before fermentation.

The invention relates to the field of high polymer materials, and discloses a preparation method of high-strength TPS starch for degradable materials. The preparation method comprises the following steps: firstly, by utilizing a wet modified starch production process, adding a bio-enzyme preparation under the conditions of controlling the temperature and pH value, then controlling the temperature of obtained slurry, adding an inhibitor, carrying out cross-linking agent and esterification treatment to obtain modified starch, mixing and adding a starch matrix reinforcement material into powder in a dry method for treatment, adding a proper amount of glycerol and a modifier, extruding by a twin-screw extruder, air-cooling, slitting and granulating to obtain a thermoplastic TPS starch granular material with good strength. Compared with common starch, the thermoplastic TPS starch particle material has the advantage that the mechanical property can be improved by adding the thermoplastic TPS starch particle material into a degradable material.

The invention relates to a corn-starch manufacturing technique, especially the corn starch sewage zero discharge manufacturing technique. It includes the following working procedure that purifying, dipping, milling and sieving, starch milk refining, fu-water treating. In the dipping working procedure, the dipping baiting is used sparse corn steep liquor as the baiting water; the dipped corn is used the process water to feed continuously; in the grinding and sieving, the process water is used when de-embryo mill is working, to clean the embryo, fiber, to make the acid water when the fibril filtering medium is returned to the fifth fiber washing tank; in the starch milk refining, the process water is used as the washing water for the separator, and the filter cloth of the protein vacuum filter; in the fu-water treating, the starch milk dehydration filtrate should be distributary used after revolving, all of the sealing cooling water in the centrifugal pump should be concentrating recycling. In the whole operation procedure, the processing water is formed closed cycle to realize sewage zero discharge, so it can solve the sewage treating problem, and each ton of starch consumes 1.5-2.2 ton of water.

The invention provides a corn soaking method in waxy corn starch production.The method comprises the first step of primary soaking, wherein waxy corn serves as a raw material, water, lactic acid and complex enzyme are added, and soaking is conducted; the second step of waxy corn degerming, wherein broken degerming is conducted on the soaked waxy corn; the third step of secondary soaking, wherein water and compound protease are added into the broken-degermed waxy corn, standing soaking is conducted, and after soaking, the waxy corn gets into the starch production procedure.By means of the method, the waxy corn soaking efficiency can be effectively improved, the soaking time can be shortened, a safe soaking agent is adopted, sulphurous acid is not added in the soaking process, no SO2 pollution is caused, and the yield of waxy corn starch is increased.

The invention relates to a method for producing oxidized starch. The method comprises the following steps of: adding copper sulfate accounting for 0.005 to 0.02 percent of dry starch into starch milk and uniformly stirring the mixture; adding sodium hypochlorite into the mixture, controlling liquor adding speed, keeping the pH value of the mixture at 9, adding 4 percent solution of sodium hydroxide into the mixture when the pH value of the mixture falls, adjusting the pH value to be 9 and controlling a temperature to be between 32 and 35 DEG C; adding hydrochloric acid into the mixture after an oxidation reaction is performed so as to adjust the pH of the starch milk to be neutral; and centrifugally dewatering the starch milk and performing air drying on the dewatered starch milk until the water content of the starch milk is less than or equal to 14 percent. An activation process is added in the oxidized starch production method, so that the oxidation reaction speed of the starch is increased, reaction time is shortened and the using amount of the sodium hypochlorite serving as an oxidant is reduced.