Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for detecting migration quantity of nipagin ester substances in plastic food package bag

A paraben ester and migration technology, applied in the detection field, can solve problems such as no patent reports, and achieve the effect of filling the technical gap

Inactive Publication Date: 2014-09-10
INSPECTION & QUARANTINE TECH CENT OF FUJIAN ENTRY EXIT INSPECTION & QUARANTINE BUREAU
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

No relevant standard reports have been found through ISO, ASTM, GB, SN and other standards, and no relevant patent reports have been found through the patent network search

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
  • Method for detecting migration quantity of nipagin ester substances in plastic food package bag
  • Method for detecting migration quantity of nipagin ester substances in plastic food package bag
  • Method for detecting migration quantity of nipagin ester substances in plastic food package bag

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0098] Embodiment one: sample to be tested - negative plastic food packaging bag (negative sample)

[0099] 1.1 Sample preparation: Select negative plastic food packaging materials (that is, plastic food packaging materials that do not contain parabens) and use a plastic sealing machine to make a 10cm×10cm plastic bag, wash with distilled water, and dry; take four The dried plastic bags are respectively marked as plastic bag Ⅰ, plastic bag Ⅱ, plastic bag Ⅲ, plastic bag Ⅳ, respectively filled with 200mL distilled water, 200mL 3% acetic acid, 200mL10% ethanol, and pack 200g olive oil in plastic bag IV; Then use sealing machine to seal each plastic bag to obtain each water-based food simulant soaking liquid and olive oil soaking liquid respectively;

[0100] 1.2 Background test: each water-based food simulant soaking liquid and olive oil soaking liquid prepared in 1.1 were respectively operated according to step 2, step 3 and step 4 of the present invention, and the actual measur...

Embodiment 2

[0115] Embodiment two: sample to be tested---positive plastic food packaging bag (positive sample)

[0116] 2.1 Sample preparation: Select positive plastic food packaging materials (that is, plastic food packaging materials containing parabens) and use a plastic sealing machine to make a 10cm×10cm plastic bag, wash with distilled water, and dry; take four to dry After the plastic bag, and marked as plastic bag ⅰ, plastic bag ⅱ, plastic bag ⅳ, plastic bag ⅳ respectively, 200mL distilled water, 200mL 3% acetic acid, 200mL10 % ethanol, and pack 200g olive oil in plastic bag ⅳ; Then use sealing machine to seal each plastic bag to obtain each water-based food simulant soaking liquid and olive oil soaking liquid respectively;

[0117] 2.2 Background test: each water-based food simulant soaking liquid and olive oil soaking liquid prepared in 2.1 were respectively operated according to step 2, step 3 and step 4 of the present invention, and the actual measured Value is listed in tabl...

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 provides a method for detecting the migration quantity of nipagin ester substances in a plastic food package bag. The method comprises the following steps of: making the plastic bag of the size of 10*10 cm<2> by a plastic sample to be detected through a plastic sealing machine, washing the plastic bag by using distilled water, and drying; respectively putting water-based food simulation liquid and olive oil into the plastic bags, and sealing to obtain a water-based food simulation liquid immersed solution and an olive oil immersed solution; performing simple treatment on the obtained immersed solutions to obtain solutions to be detected; performing analysis detection on the solutions to be detected by adopting high performance liquid chromatography (HPLC) / mass spectrum (MS) / mass spectrum (MS) to obtain theoretical measured values of the nipagin ester substances in the samples to be detected; and deducing blank values from the theoretical measured values to obtain actual measured values of the nipagin ester substances in the immersed solutions of the samples to be detected. By the method, the technical blank of detection for the nipagin ester substances in the plastic food package bag in China is filled; and the method has the characteristics of simplicity in operation and high detection accuracy.

Description

【Technical field】 [0001] The invention relates to a detection method, in particular to a detection method for the migration of parabens in plastic food packaging bags. 【Background technique】 [0002] Parabens, also known as parabens, are a class of safe, efficient and broad-spectrum preservatives, widely used in food, beverages, cosmetics, medicine and many other fields. Parabens preservatives have a phenolic hydroxyl structure, have stronger antibacterial properties than benzoic acid and sorbic acid, and have strong antibacterial effects in a wide pH range of 3-8. It has been reported that paraben can be added to food packaging materials as an antibacterial agent to prepare food active packaging. The active ingredients in the active packaging can be slowly released to change the internal environmental conditions of food packaging, prolong the shelf life of food, and improve food quality. Sensory qualities. Therefore, food active packaging technology has become the technic...

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
Patent Type & Authority Patents(China)
IPC IPC(8): G01N30/88G01N30/06
Inventor 李小晶林华熊文明唐熙姜晓黎吕水源陈旻实邹哲祥
Owner INSPECTION & QUARANTINE TECH CENT OF FUJIAN ENTRY EXIT INSPECTION & QUARANTINE BUREAU
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com