Unlock instant, AI-driven research and patent intelligence for your innovation.

Watermelon peel based edible packaging film and preparation method therefor

A technology of watermelon rind and packaging film, applied in the field of edible packaging film based on watermelon rind and its preparation, can solve the problems of food safety risk, practicality, high cost, etc., achieve excellent antibacterial properties, improve shelf life, and avoid environmental pollution Effect

Active Publication Date: 2016-05-04
SICHUAN AGRI UNIV
View PDF4 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Aiming at the shortcomings of the prior art, the purpose of the present invention is to provide a method for preparing an edible packaging film based on watermelon rind, which overcomes the disadvantages of high cost, food safety risk and low practicability in the prior art, Edible packaging films with considerable mechanical strength and barrier properties can be obtained directly from watermelon rinds as raw materials and through low-cost processing methods

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
  • Watermelon peel based edible packaging film and preparation method therefor
  • Watermelon peel based edible packaging film and preparation method therefor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Wash the fresh watermelon rind with tap water to remove dirt, then soak it in distilled water to clean it, and then cut it into 1cm×1cm small pieces for later use. Weigh 600g of watermelon small pieces, blanching in a solution containing 0.3% sodium bicarbonate at 85°C for 2-3 minutes, drain after cooling; beat the drained watermelon rind at room temperature for 10-15 minutes until it becomes a paste, then add 900mL Distilled water is configured as the watermelon rind slurry that watermelon rind paste mud accounts for 50% of the total weight of the slurry; thickener and plasticizer are added in the above-mentioned watermelon rind slurry, and the thickener is sodium alginate, accounting for 50% of the total weight of the slurry 0.30%, the plasticizer is glycerin, accounts for 0.35% of the total weight of the slurry; the resulting mixed slurry is homogenized at normal temperature and pressure, the homogenization rate is 15000r / min, and the time is 5min; the homogenized slu...

Embodiment 2

[0039] Except that watermelon peel paste mud accounts for 80% of the total weight of the slurry, the thickener is replaced by sodium carboxymethyl cellulose, sodium carboxymethyl cellulose accounts for 0.5% of the total weight of the slurry, and the plasticizer is replaced by sorbitol, Sorbitol accounts for slurry gross weight and is except 0.4%, all the other are consistent with embodiment 1.

Embodiment 3

[0041] In addition to watermelon peel paste mud accounting for 60% of the total weight of the slurry, the thickener is replaced by a mixture of sodium carboxymethyl cellulose and sodium alginate, sodium alginate accounts for 0.2% of the total weight of the slurry, sodium carboxymethyl cellulose Accounting for the total weight of the slurry is 0.2%, the addition of glycerin is adjusted to be 0.3% except for the total weight of the slurry, and the rest are consistent with Example 1.

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

PropertyMeasurementUnit
tensile strengthaaaaaaaaaa
elongation at breakaaaaaaaaaa
Login to View More

Abstract

The invention provides a preparation method for a watermelon peel based edible packaging film. The method comprises the following steps: (1) cleaning and dicing watermelon peel; (2) carrying out blanching treatment; (3) carrying out pulping treatment until the substance subjected to the pulping treatment is pasty, so as to obtain watermelon peel paste; (4) adding water, a thickener and a plasticizer into the watermelon peel paste obtained in the step (3), so as to obtain watermelon peel slurry, wherein the watermelon peel paste contains the ingredients in percentage by mass: 40-80% of the watermelon peel paste, 0.1-1% of the thickener, 0.05-0.50% of the plasticizer and the balance of the water, the thickener contains sodium alginate and / or sodium carboxymethyl cellulose, and the plasticizer contains sorbitol or glycerine; (5) carrying out homogenization treatment for 5-10 minutes at the treatment rate of 10,000-20,000r / min, and then, carrying out degassing treatment and standing, so as to obtain a shaped sizing material; and (6) carrying out casting and drying, and then, carrying out film uncovering, thereby obtaining the watermelon peel based edible packaging film. The invention also provides the packaging film prepared by the method.

Description

technical field [0001] The invention belongs to the technical field of food engineering, and in particular relates to an edible packaging film based on watermelon rind and a preparation method thereof. Background technique [0002] In recent years, food-related safety and environmental problems have become increasingly prominent. One of the main problems is that the safety of food packaging needs to be strengthened and the environmental protection treatment methods of food raw material waste need to be further studied. [0003] Fruit is an important food that people need daily. It can provide a variety of nutrients and vitamins, and is of great significance to improving human health. With the continuous enhancement of China's national strength and people's living standards, the fruit industry has also been vigorously developed, and fruit-related processing enterprises are emerging. However, since the peel is often discarded as waste and is perishable, the environmental prob...

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 Applications(China)
IPC IPC(8): C08J5/18C08L97/02C08L5/04C08L1/28C08K5/053C08K5/13B65D65/46
CPCB65D65/463C08J5/18C08J2397/02C08J2401/28C08J2405/04C08L97/02C08L2201/06C08L2201/14C08L2203/16C08L2205/03C08L5/04C08K5/053C08L1/286C08K5/13
Inventor 吴贺君胡彪董知韵刘韫滔林德荣刘耀文叶劲松成金曦卢梦瑶白峻伟
Owner SICHUAN AGRI UNIV