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Process method for producing uranidin by liquid state fermentation of potatoes with monascus purpureus

A technology of Monascus yellow pigment and Monascus mold is applied in the field of producing yellow pigment and yellow pigment produced by liquid fermentation of Monascus mold, which can solve problems such as difficulty in large-scale production, and achieve the improvement of product functional characteristics, increase agricultural income, The effect of increasing added value

Inactive Publication Date: 2021-03-30
TIANJIN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Usually natural yellow pigments mainly come from plant pigments such as gardenia yellow and turmeric, but they are easily affected by seasons and climates, and are not easy to produce on a large scale

Method used

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  • Process method for producing uranidin by liquid state fermentation of potatoes with monascus purpureus
  • Process method for producing uranidin by liquid state fermentation of potatoes with monascus purpureus
  • Process method for producing uranidin by liquid state fermentation of potatoes with monascus purpureus

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Embodiment 1

[0039] Seed solution preparation: Monascus anka spores were inoculated into 50 mL of Monascus anka seed solution medium, and the inoculum size was 107 spores / mL, cultured at 30°C, 180rpm for 10 days.

[0040] Potato homogenate pretreatment: clean, peel and cut potatoes into 5mm size potato pieces, weigh 50g of potato pieces into a 500mL Erlenmeyer flask, add 2100mL of water to make a homogenate, then add 0.6g of α-amylase in Water bath at 70°C for 60 minutes, then add 1 gram of glucoamylase and bathe in water at 60°C for 30 minutes. Finally, it was sterilized under high pressure at 121° C. for 20 minutes, cooled to room temperature, and inoculated with 10% Monascus seed solution.

[0041] After being inoculated with the Monascus seed solution, culture it for 3 days at 30° C. and 180 rpm.

[0042] After the fermentation is completed, use a Buchner funnel to filter, dry the filtered filter residue to constant weight, grind it into powder with a mortar, pass through a 100-mesh s...

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Abstract

The invention relates to a process method for producing uranidin by liquid state fermentation of potatoes with monascus purpureus, which comprises the following steps: cutting fresh potatoes into blocks, adding a proper proportion of water, conducting pulping to form a homogenate, carrying out pretreatment sterilization by using a double-enzyme method, inoculating a monascus purpureus seed solution into the potato homogenate after the potato homogenate is cooled, conducting culturing for a proper time at a proper temperature and a proper shaking frequency, extracting monascus pigment after fermentation is completed, and preparing uranidin to obtain a product.

Description

technical field [0001] The invention relates to a process method for producing yellow pigment from potatoes by liquid state fermentation of Monascus fungus, in particular relates to the production of yellow pigment by utilizing potato homogenate liquid state culture, and belongs to the field of fermentation. Background technique [0002] The fermentation of Monascus can produce various physiologically active substances such as Monascus pigment, monacolin K, ergosterol, γ-aminobutyric acid, citrinin, lovastatin, natural plant hormones, and biologically active enzymes. High nutritional, health care, medicinal value, without any toxic side effects, is a kind of natural, safe and effective health food and pharmaceutical raw materials. Monascus pigments are mainly divided into three categories according to their colors: Monascus red pigment, Monascus orange pigment and Monascus yellow pigment. Among them, Monascus yellow pigment not only has the function of coloring, but many stu...

Claims

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Application Information

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IPC IPC(8): C12P1/02C12R1/645
CPCC12P1/02
Inventor 王玉荣李瑶张蕊郭晓宇余济源陈勉华
Owner TIANJIN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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