Technical Research Of Utilizing Starch Of Maize To Make Beer

Jilin Province is situated at our country northeast center, for the temperate zone mainland monsoon climate,it is in the worldwide scale most suits the gold region which grows com, the com resources is rich, is known as "township of the Chinese corn". Our province is also the biggest corn intensive processing industrial base in the nation, processing corn above thousand thousand tons.The com starch and the corn syrup are the tom intensive processing industry products, how uses the high tech method fully, its further transformation and the use, the important technical.attack topic,may become our province to lengthen the tom intensive processing industry chainIn view of the present beer industry which is shortage of materials, the paper uses the com starch instead of barley malt to make beer,researching on each craft link to conduct. In the research process, take the com starch as the primary data, carried on saccharification processing to it, the obtained saccharification product as the carbon source when the beer yeast needs; Take the corn albumen as the supplementary material, in the experiment increase its enzymolysis product (mainly is alpha - amino nitrogen), the nitrogen source when the beer yeast needs. Reasonable mix and configurate the com starch saccharification and the corn albumen enzymolysis product, increase the mineral substance and adjust pH, the vaccinate beer yeast and ferment the beer of high degree.Determines the best parameter of production craft through the orthogonal experiment.From com starch liquefication craft, thesaccharification craft, the corn albumen hydrolisis craft, the decolorization craft, culture medium of beer yeast configuration craft, boiled aspect and so on as well as fermentation process, technical questions are carried on comparing the systems to discuss, obtains the good test result.The present paper primary coverage is as follows:1. Has determined the corn starch liquefication craft.Use the thermostable alpha - amylase, the liquefied craft parameter is: Adds the enzyme quantity: 15U/g; pH:5.5; Liquefied time: 60min.The liquefied end point DE value may control between 15%-20%.2. Has determined the com starch saccharification craft.In order to obtain conforms to the sugar spectrum composition which the beer yeast homalium hainanensis needs, using the orthogonal experiment determined the saccharification best technological conditions are:Saccharification temperature: 60℃; pH: 4.0; Adds the enzyme quantity: 250U/g; Hydrolisis time: 80min.The sugar fluid DE value may achieve 65%.3. Inquired into the corn albumen hydrolisis craft.Corn protein smashing to 80 item.Through the single factor experiment determined the hydrolisis uses the acidic proteinase with the enzyme for the liquor.The hydrolisis condition is as follows:Substrate concentration: 80g/L; Temperature: 50℃; pH:3.0; Hydrolisis time 4h.In the hydrolisis fluid alpha - the amino nitrogen content may achieve 1051.78mg/L.4.Had determined the corn albumen decolorization craft, through makes the temperature, the time and the activated charcoal recruitment three single factor experiment, selects the good decolorization to escape the taste condition is: The activated charcoal joins quantity 2.0%, the decolorization escapes the taste temperature: 70℃, the decolorization escapes taste time: 75min, this time decolorizes escapes the taste rate :22.35%.5. Slightly tries to experiment. Slightly is trying in the experimental production, the obtained corn ultra does the beer luster light yellow, froth rich, pure white exquisite, hangs the cup to be lasting.the feeling in the mouth is mellow, brings the vinegar to be fragrant slightly, the micro acid, the fragrance is prominent, has the model beer taste.Its physics and chemistry target and the sense organ appraisal and the ordinary beer wide difference, the kiloliter liquor production cost has not reduced 49.6 Yuan, if yearly produces 50,000 kiloliters corn ultra to do the beer, may increase the profits and taxes more than 2000 ten thousand Yuan, the economic efficiency is extremely remarkable.