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Subsequently the film was submerged in running water 25C to wash for 20 minutes.
To the gelatinized solution was added 25 units of salted out enzyme per gram starch obtained from culture of Pseudomonas amyloderamosa. The formed precipitate was collected as S-amylose 6-S. Amylose igm produced in accordance with the process of claim 1.
The product had a moisture content of 51 7t. Especially as the S-amylose content approaches the 50 72 level a tendency for a sudden decline in the tensilities is apparent.
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The obtained amylose are applicable as film material. Sign up for a new account in our community.
The points in which the present invention is 120f are listed as follows. The following procedures were the same as that of Example The resultant film had a desirable gloss, an absorbance of visible light within 5 7t. The suspension was dispersed sufficiently by heating at C in an autoclave then 0. Pure amylose was obtained by drying and pulverization following suspending and washing the said product in one-half part of water.
As regards to film forming properties. Films produced from amylose are receiving great attention recently as a material for food packaging or coating. A process according to claim 1 wherein the amylose obtained by hydrolyzing starch with Alpha -1,6-glucosidase from the species Pseudomonas amyloderomosa has a content of long chain amylose with D.
Yields were calculated by adding deposits which were obtained from the mother liquid following concentrating and cooling. Method of preparing a starch hydrolysate, an aqueous starch hydrolysate ir, method of preparing a food containing a starch hydrolysate, and a food formulation containing a starch hydrolysate.
This is how they are flying with the assymetrical load. Posted October 19, A 20 7 suspension was prepared from the starch.
Highly soluble films are suitable for producing small bags for beverages such as instant coffee. Then incubated at 45C for 40 hours.
Foreign Application Priority Data Nov. The film has a lower hygroscopicity and desolves slowly in water.
You can adjust your cookie settingsotherwise we’ll assume you’re okay to continue. The formed amylose precipitate was centrifuged and washed with water sufficiently. The light transparency of the films is 96 Defined heat treatment, under acidic conditions, of solutions irmm polysaccharide biopolymers.
The conditions for reaction are listed in Table 2. United States Patent Yoshida et a1. Whereas films prepared with glycerin showed deterioration. Precipitate which formed after hours was centrifuged. Because enzymes that are produced by genera of Lactobacillus and Actinomycetes are generally heat resistant and can be used at 50 210c. More particularly the inventors succeeded in the production of films by a decomposing amylopectin present in potato starch.
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The amylose and amylopectin portions present in cereal 1220c. In the case of this enzyme. Selective submerged productions of three types of glucoamylases by a black-koji mold. Moreover separation is attainable by precipitation with salts. The processes according to the present invention now be described. L- amylose was obtained. As shown in Table l. The films produced in accordance with the present invention are most suitable for food packaging and coating owing to their superiorities with respect to light transparency.
The films according to the present processes have an excellent light transparency of nearly 71 compared to the commercial amylomaize starch films which have a light transparency of about 5O 7. The suspension was pumped continuously into a cylindrical gelatinizer equipped with a multi-bladedagitator and gelatinized by charging raw steam into the gelatinizer and heating the suspension rapidly to C.
I’ve edited the Loadou. All Activity Home Forums Thirdwire: After submersion in 13 7x glycerin solution for 10 minutes, the film was dried at 30C. Increase of the amylose concentration in the alkali solution was possible. Whereas films produced from amylomaize starch by the same method had a light absorbance of 55 Since the iirm of the amylose solution was low.