Water-based prolamin compositions, methods of making water-based prolamin compositions, and applications thereof

A technology of gliadin and solvent composition, applied in the field of water-based gliadin (for example, water-based gliadin composition and preparation of water-based gliadin composition, can solve carcinogenic safety, organic solvent is not favorable, etc. question

Inactive Publication Date: 2014-05-07
POET RES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The use of organic solvents in the preparation of polymer coating formulations is considered a drawback as the formulations may have problems related to flammability, carcinogenicity and safety in use
Also, the use of organic solvents may not be advantageous due to environmental concerns

Method used

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  • Water-based prolamin compositions, methods of making water-based prolamin compositions, and applications thereof
  • Water-based prolamin compositions, methods of making water-based prolamin compositions, and applications thereof
  • Water-based prolamin compositions, methods of making water-based prolamin compositions, and applications thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] Embodiment 1: (preparation of zein solution)

[0073] The aqueous zein composition of the present invention is prepared as follows. 136 g of absolute ethanol (200 proof ethanol) and 50 g of distilled water were added to the flask and mixed. Next, 20 g of citric acid was added to the flask and the final acidified solvent composition was stirred until clear. The acidified solvent composition was heated, and while stirring and heating, 20 g of a zein composition (α-zein content of 85% by weight, β and γ-zein content was 15% by weight). After the addition of zein, the final composition exhibited a bright yellow color. The composition was then distilled to remove ethanol, a fraction of about 170 ml was removed at a temperature of about 79-88°C. The composition is cooled to provide an aqueous zein composition in solution.

Embodiment 2

[0074] Example 2: (Preparation of Zein Emulsion)

[0075]The aqueous zein composition of the present invention is prepared as follows. 150 g of absolute ethanol and 111 g of distilled water were added to the flask and mixed. Next, 20 g of citric acid was added to the flask and the final acidified solvent composition was stirred until clear. The acidified solvent composition was heated, and while stirring and heating, 20 g of a zein composition (α-zein content of 85% by weight, β and γ-zein content was 15% by weight). After the addition of zein, the final composition exhibited a bright yellow color. The composition was then distilled to remove ethanol, and when the composition turned from bright yellow to opaque, the heat was removed to terminate the distillation. A fraction of about 196-200 ml was removed at a temperature of about 83-95°C. The composition is stirred when cooled to provide an aqueous zein composition in the form of an emulsion. After the emulsion is pre...

Embodiment 3-14

[0077] The preparation of Examples 5-8 and 10 was carried out as generally described in Example 1 using the amounts of ingredients stated in Table 2. The preparation of Examples 3-4, 9 and 11-14 was carried out as generally described in Example 2 using the amounts of ingredients stated in Table 2.

[0078] Table 2

[0079]

[0080] Note: Embodiment 10-14 is vacuum distillation

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PUM

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Abstract

The invention relates to water-based prolamin (e.g., zein) compositions and to methods of making water-based prolamin compositions. The compositions may be used in paints, printing inks, varnishes, adhesives, glues, binders (e.g., for paper), food coatings, and the like.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of U.S. Application Serial No. 61 / 572,410, filed July 14, 2011, entitled "Water-Based Prolamin Compositions, Methods of Making Water-Based Prolamin Compositions, and Uses Thereof," the disclosure of which is incorporated by reference method is incorporated here. Background technique [0003] Prolamins are a class of plant proteins that are rich in prolamins and glutamine but lack polar amino acids (eg, zein from corn). Because of this deficiency, prolamins are difficult to exist in aqueous environments. Typically, prolamins (eg, zein) are soluble in aqueous alcohol and / or ketone solutions, eg, about 40% to about 95% by weight alcohol and / or ketone at room temperature. [0004] The use of zein as a solid in coating compositions is limited by its solubility. Zein is soluble in aqueous alcohol and / or ketone solutions, eg, in about 40% to about 95% by weight alcohol and / or ketone at ro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07K1/14C07K14/425
CPCC07K1/145C07K14/425C08J3/05C09D189/00
Inventor 利夫·S·弗里曼小约翰·W·劳顿马尔温·L·米切尔梅尔温·G·米切尔
Owner POET RES INC
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