Preparation method of lotus seed protein powder

A protein powder and lotus seed technology, which is applied in food preparation, plant protein processing, food science, etc., can solve the problems of lack of lotus seed protein preparation technology and large investment, and achieve improved product quality and protein yield, low energy consumption, and reduced The effect of wastewater

Inactive Publication Date: 2009-07-22
XIANGTAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, microwave and ultrasonic extraction methods are currently difficult to industrialize, and CO 2 Acid precipitation requires high-pressure equipment, and the equipment investment is relatively large. At present, there is still a lack of industrialized and practical lotus seed protein preparation technology in China.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Mix 50 mesh heart-removed white lotus seed powder with 0.25mol L -1 The NaCl solution was mixed with a mass ratio of 1:9, stirred at 40°C for 60min, at a stirring rate of 800rpm, centrifuged for 30min at a centrifugation rate of 3000rpm, and the precipitate was repeatedly leached twice, and the supernatant was combined; at 45°C, pH6. 5. Ultrafilter the supernatant under the pressure of 0.25MPa to obtain the concentrated protein solution; add water until the protein concentration is 25%, homogenize at 45°C and 30MPa; spray the homogenized material into powder, and the spray inlet temperature is 140 ℃, spray outlet temperature 68 ℃, to get lotus seed protein powder.

Embodiment 2

[0016] Mix 60 mesh white lotus seed powder with 0.30mol·L -1 The NaCl solution was mixed at a mass ratio of 1:15, stirred at 35°C for 100 min at a stirring speed of 9000 rpm, and centrifuged for 40 min to obtain a supernatant at a centrifugation speed of 4000 rpm. The precipitate was repeatedly leached 3 times, and the supernatant was combined; at 40°C, pH 7.0, and pressure 0.35MPa, the supernatant was ultrafiltered to obtain a concentrated protein solution; water was added until the protein concentration was 30%, and at 38°C and 28MPa Under homogenization; the homogenized material is sprayed into powder, the spray inlet temperature is 150°C, and the spray outlet temperature is 75°C to obtain lotus seed protein powder.

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PUM

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Abstract

The invention discloses a method for preparing lotus seed albumen powder, which comprises the following steps: utilizing edible salt solution to leach lotus seed albumen and simultaneously separating lotus seed starch which can be used as other food raw material, wherein the salt water can be recycled, and the method is environment-friendly and economical. An ultra-filtration technique avoids using an acid precipitation water-washing method, has no phase change, has low energy consumption, and greatly improves product quality and albumen yield; and the total albumen content is as high as 87.5 percent. The whole production process has no acid and alkali; and simultaneously, the method reduces waste water generated in the production process, and greatly lowers production and pollution control cost. The prepared lotus seed albumen powder has high albumen content, is subtle, and has good mouth feel and taste.

Description

technical field [0001] The invention relates to a preparation method of lotus seed protein powder. Background technique [0002] Both lotus seed protein and soybean protein are high-quality vegetable proteins with high nutritional value and rich in lysine, and lysine is the first limit in common food or diet (especially in fruits, vegetables and grains with high starch content). Insufficient lysine intake can be supplemented in the diet of some specific groups of people; at the same time, it contains bean seed protein, which generally lacks methionine. The content and proportion of essential amino acids in lotus seed protein are close to the FAO / WHO recommended model, and the proportion of amino acids is relatively balanced, which can reduce the content of cholesterol and saturated fatty acids in the diet, maintain a balanced nutrition, and prevent sub-health and non-communicable diseases. Especially in my country, there is still a gap in the production of lotus seed protei...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23J3/14A23L1/36A23L1/28A23L1/305
Inventor 曾虹燕王亚举蔡联辉廖晓珊李克远李丹
Owner XIANGTAN UNIV
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