Novel trends and applications of natural pH-responsive indicator film in food packaging for improved quality monitoring

Food Control ◽  
2021 ◽  
pp. 108769
Author(s):  
Luman Zheng ◽  
Liming Liu ◽  
Jiahao Yu ◽  
Ping Shao
Keyword(s):  
Food Packaging ◽  
Quality Monitoring ◽  
Ph Responsive ◽  
Indicator Film

Cellulose/chitosan pH-responsive indicator incorporated with carrot anthocyanins for intelligent food packaging

2019 ◽  
Vol 136 ◽  
pp. 920-926 ◽  
Author(s):  
Fahimeh Ebrahimi Tirtashi ◽  
Mehran Moradi ◽  
Hossein Tajik ◽  
Mehrdad Forough ◽  
Parya Ezati ◽  
...  
Keyword(s):  
Food Packaging ◽  
Ph Responsive

Non-destructive Quality Monitoring of Fresh Fruits and Vegetables

2017 ◽  
Vol 2 (2) ◽  
pp. 103 ◽  
Author(s):  
O. P. Chauhan ◽  
S. Lakshmi ◽  
A. K. Pandey ◽  
N. Ravi ◽  
Natarajan Gopalan ◽  
...  
Keyword(s):  
Food Packaging ◽  
Fruits And Vegetables ◽  
Near Infrared ◽  
Quality Monitoring ◽  
Selling Price ◽  
Time Resolved ◽  
Postharvest Handling ◽  
Response Method ◽  
Turn Over ◽  
Non Destructive

Quality determines the shelf life as well as selling price of fresh fruit or vegetable and therefore, quality monitoring and testing of fresh commodities have paramount importance in their postharvest handling and supply chain management. Most of the methods used to assess fruits and vegetables quality are destructive in nature. Now-a-days, various mechanical, optical, electromagnetic, and dynamic non-destructive methods are gaining importance due to ease in operations, faster turn over and reliability. Some of the non-destructive techniques (NDT) are currently being used in laboratories, research institutions and food packaging and processing industries, whereas, some methods are still at developmental stage. Various NDT with respect to their principle and applications such as impact test, electronic nose, time-resolved reflectance spectrometry (TSR), near infrared spectroscopy (NIR), nuclear magnetic resonance (NMR), X-Ray, ultra sonic, acoustic impulse response method, electrical conductivity methods etc., are discussed in this review.

scholarly journals Emerging Nanomaterial Applications for Food Packaging and Preservation: Safety Issues and Risk Assessment

Proceedings ◽  
2020 ◽  
Vol 70 (1) ◽  
pp. 7
Author(s):  
Sofia Agriopoulou ◽  
Eygenia Stamatelopoulou ◽  
Vasiliki Skiada ◽  
Panagiotis Tsarouhas ◽  
Theodoros Varzakas
Keyword(s):  
Food Quality ◽  
Food Packaging ◽  
Food Preservation ◽  
Quality Monitoring ◽  
Edible Coatings ◽  
Safety Issues ◽  
Wide Range ◽  
Safety Parameters ◽  
Toxicological Risk ◽  
Efficient Option

The contribution of nanomaterials to the development of food packaging systems has been enormous in last years. Nanomaterial is defined as material having one or more dimensions in the range of 1–100 nm. Nano-sized materials change their optical, magnetic, electrical, and other properties, and for this reason are widely used in food packaging. Nanoparticles (NPs), nanocomposites (NCs), nanoclays (NCs), nanoemulsions (NEs), nanosensors (NSs), and nanostructures (NSTs) are some of the important nanomaterials that have been used in food packaging and preservation. Nanomaterials can offer solutions in food packaging and preservation through active and smart packaging, edible coatings, and the development of a wide range of capable nanosystems. Therefore, nanomaterials can be considered as important tools and efficient options for controlling, limiting, and improving safety parameters and food quality that are highly desirable in food technology. Innovative nanomaterials even achieve real-time food quality monitoring, providing an efficient option in food preservation applications. The toxicological risk posed by the use of nanomaterials in food packaging, particularly the case of edible nano-packaging, is significantly linked to the migration phenomenon as well as the occurrence of toxic effects on the exposed human body.

scholarly journals Optical and pH-Responsive Nanocomposite Film for Food Packaging Application

Proceedings ◽  
2019 ◽  
Vol 42 (1) ◽  
pp. 28
Author(s):  
Nedal Abu-Thabit ◽  
Yunusa Umar ◽  
Zakariya Sadique ◽  
Elaref Ratemi ◽  
Ayman Ahmad ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Polyvinyl Alcohol ◽  
Acidic Medium ◽  
Food Packaging ◽  
Color Change ◽  
Ph Responsive ◽  
Visible Spectroscopy ◽  
Red Cabbage ◽  
Future Work ◽  
Cabbage Extract

In this study, a biocompatible and non-toxic pH-responsive composite film was prepared for food packaging application. The films are composed from polyvinyl alcohol as the main polymeric matrix, nanoclay as a reinforcing component, and red cabbage extract as a non-toxic indicator. The prepared films showed lower water uptake values when the amount of nanoclay was increased up to 25%. It was observed that the films become brittle at high loading of nanoclay (40%). The prepared films exhibited color change in alkaline and acidic medium due to the presence of red cabbage extract, which turned pinkish in acidic medium and greenish in an alkaline environment. The prepared films were characterized by FTIR and visible spectroscopy. The maximum absorption in acidic medium was (λmax = 527 nm), while a red-shift occurred in the alkaline medium (λmax = 614 nm). Future work will focus on the crosslinking of the prepared films to improve their mechanical properties.

Newly Developed Starch-Based Hydroxyethyl Cellulose Film with Wide Spectrum of pH-Colour Indicator

2013 ◽  
Vol 594-595 ◽  
pp. 967-971 ◽  
Author(s):  
Nozieana Khairuddin ◽  
Ida Idayu Muhamad ◽  
Kesonthip Thongbua ◽  
Shahrulzaman Shaharuddin ◽  
Siti Nur Hidayah Mohamad
Keyword(s):  
Food Packaging ◽  
Wide Spectrum ◽  
Bromothymol Blue ◽  
Hydroxyethyl Cellulose ◽  
Methyl Red ◽  
Food Package ◽  
Wide Range ◽  
Solution Casting Method ◽  
Ph Buffer ◽  
Indicator Film

Active packaging is a promising form of modern food packaging with great potential; economically, environmentally and generally, as it gives a lot of health benefits. Active and smart packaging is made by incorporating suitable colour indicators into food package matrices and applying a bio switch concept to inhibit the spoilage and the pathogenic microorganisms. The main objective of this study are to evaluate starch-based hydroxyethyl cellulose (HEC) the best formulation of methyl red and bromothymol blue that can react with wide pH ranges and the effect of the smart film indicator incorporated with methyl red and bromothymol blue. A solution casting method was used in the film preparation and colour indicators were incorporated before casting. The ratio of 50:50 methyl red and bromothymol blue showed the best formulation which can react with a wide range of pH buffer 1 to 13 compared to ratio 20:80 and 80:20 of methyl red and bromothymol blue. The ratio of 50:50 methyl red and bromothymol blue were then selected to be incorporated into the film to see the effectiveness of the indicator film in order to detect the changes of pH.

Sign in / Sign up

Export Citation Format

Share Document