Medlar mould proof color fixative

A color-protecting agent and anti-mildew technology, which is applied in food preservation, fruit and vegetable fresh-keeping, food science, etc., can solve the problems of color-protecting agent without a clear ratio relationship, the residual amount is easy to exceed the standard, and the concentration is high, so as to achieve a good color-protecting effect , good water solubility

Inactive Publication Date: 2010-09-22
LANZHOU UNIVERSITY OF TECHNOLOGY
View PDF3 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Chinese patent 200610163494 (application number) discloses a kind of wolfberry color-protecting dewaxing agent, and this color-protecting dewaxing agent is made up of sodium bicarbonate, potassium sorbate, sodium citrate, sodium benzoate, sodium nitrite, and main component in this patent It is sodium bicarbonate, and its main function is to dewax. The antifungal agent used is potassium sorbate. According to our laboratory research, potassium sorbate has no signif

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Medlar mould proof color fixative
  • Medlar mould proof color fixative
  • Medlar mould proof color fixative

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] In cloudy and rainy days, the mass concentration percentages of the components of the wolfberry anti-mold and color-protecting agent of the present invention are: sodium ethyl p-hydroxybenzoate 0.12%, sodium propyl p-hydroxybenzoate 0.24%, sodium iso-Vc 2.00%, EDTA- 2Na 0.75%, sodium pyrophosphate 1.00%. Immerse the fresh wolfberry in the solution for 10 seconds, place it at an average temperature of 35°C and a relative humidity of 99%, and observe the rate of mildew under the condition of being protected from light and closed. The experimental results show that: compared with the control group, the moldy time of wolfberry can be delayed for 18 hours; at 48 hours, the moldy rate of wolfberry can be reduced by 30%; at 72 hours, the moldy rate of wolfberry can be reduced by about 22% compared with the control group.

Embodiment 2

[0020] When using sunny weather, the mass concentration percentages of the components of the wolfberry anti-mold and color-protecting agent of the present invention are: sodium ethyl p-hydroxybenzoate 0.08%, sodium propyl p-hydroxybenzoate 0.16%, sodium iso-Vc 1.00%, EDTA -2Na 0.50%, sodium pyrophosphate 1.50%. Soak fresh goji berries in the solution for 10 seconds and dry in the sun. The experimental results show that: compared with the control group, the dried wolfberry has pure color and uniform color, and the rate of oily fruit and black fruit is reduced by 85% to 95%.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a medlar mould proof color fixative which comprises components by weight percentage: 0.08-0.12% of ethyl p-hydroxybenzaote sodium, 0.16-0.24% of propylparaben sodium, 1.00-2.00% of iso-ascorbyl sodium, 0.50-0.75% of EDTA-2Na, 1.00-1.50% of sodium pyrophosphate and the balance of water; the medlar mould proof color fixative adopts the sodium salt of hydroxybenzoic acid ester mildewproof agent, has low toxicity, non-sulphur residual, good water-solubility and high efficient inhibiting effect on the mould which cause medlar to mildew; the iso-ascorbyl sodium, the EDTA-2Na and the sodium pyrophosphate which have very good color-preserving effect on the medlar pigment has better color-preserving effect; and the selected mildewproof agent and the color fixative can be well combined and has no influence on the effect with each other after being combined.

Description

technical field [0001] The invention relates to the technical field of fruit and vegetable preservation. Background technique [0002] At present, there is no compound food additive specially used for anti-mold and color protection of wolfberry. The unqualified rate of wolfberry after drying is about 20%. In order to reduce losses, farmers fumigate moldy wolfberry with sulfur, and the wolfberry fumigated by sulfur, SO 2 The residual amount exceeds 1000mg / kg, which is more than 20 times the allowable residue amount ≤ 50mg / kg clearly stipulated in the national standard GB / T 18672-2002 Lycium barbarum (lycium barbarum), becoming a "poisonous wolfberry" with "red skin and black heart". [0003] Mature goji berries have high water content, soft flesh that is easy to squeeze, and high sugar content, making goji berries easily infected by microorganisms and moldy during drying and storage. The composition of wolfberry pigment is fatty carotene compound, which makes wolfberry appea...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): A23B7/154A23B7/157
Inventor 李春雷杨爱梅吴古飞王丽丽
Owner LANZHOU UNIVERSITY OF TECHNOLOGY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap