Release of Potassium SORBATE from Pectin- Carboxymethyl Cellulose Films into Food Simulant

Abstract

The aim of this study was to evaluate the kinetics of potassium sorbate (PS) loaded in low methoxyl pectin/carboxymethyl cellulose (PS-LMP/CMC) films into 95% ethanol. The ratio of LMP and CMC was changed from 8:2 to 0:10 by modulating the composition of the initial casting solution, and the corresponding diffusion coefficients were obtained from 0.26 3 10 212 to 2.11 3 10 212 cm 2 /s and showed a good linear relationship with the ratio of CMC in LMP/CMC films. The diffusivity and partition coefficient were increased with the increasing of CMC content. A decrease in temperature from 60C to 4C resulted in a reduction of diffusion coefficients from 3.11 3 10 212 to 0.93 3 10 212 cm 2 /s. The activation energy for the diffusion of PS in LMP/CMC (4:6) film was 16.42 kJ/mol. The release experiment at 15C showed that it is reliable to predicted release profile of PS from LMP/CMC (4:6) film according to the Fickian model.

Enhancing the functional properties of acetylated hemicellulose films for active food packaging using acetylated nanocellulose reinforcement and polycaprolactone coating

“…The film polyphenol release into the food simulants was determined according to a method formulated by Yu et al (2017). Strips of the AH-ACNC-Polyphenol/PCL films, with length and width of 2 cm, were immersed in 30 mL of food simulant and incubated at 5 °C, 25 °C and 40 °C for 48 h. A sample of the simulant was taken periodically to analyse polyphenol content and antioxidant activity based on the method highlighted by Ribeiro, Barbosa, Queiroz, Knödler, & Schieber (2008).…”

“…This test procedure has been done on both biopolymers and synthetic-based films. Examples of the films include: pectin-carboxyl methylcellulose films, starch triacetate films, LDPE and Ethylene vinyl alcohol (Fang & Vitrac, 2017;García Ibarra, Sendón, García-Fonte, Paseiro Losada, & Rodríguez Bernaldo de Quirós, 2019;Traistaru, Rivis, Moldovan, & Menelaou, 2013;Yu, Hu, & Wang, 2017;Zhu, Li, Huang, Chen, & Li, 2014). Biobased films are water soluble, hence they disintegrate when exposed to food containing water.…”

“…Antioxidant concentration beyond the allowable limit (60 mg/kg of food) in food can be a health hazard to consumers (EU, 2011). A coating can be applied to food packaging material to control the migration of antioxidants into food, thereby, ensuring a slow release of antioxidants from packaging materials (Yu et al, 2017). Polymer coatings such as polycaprolactone (PCL), have been applied to packaging to prevent the direct contact of the packaging material with food as well as to increase the distance which the entrapped active compounds have to travel to reach the surface of the food, thus, facilitating a slow release of the entrapped bioactive agents into food (Ali Akbari Ghavimi, Ebrahimzadeh, Solati-Hashjin, & Abu Osman, 2015).…”

Development and characterisation of functional cocoa (Theobroma cacao L.)‐based edible films

“…For example, Bonilla et al () and Qiao et al () produced the gelatine–chitosan edible film with incorporated plant ethanolic extracts, Moreno et al () used starch and gelatine, while Liu et al () formed the nanocomposite films with a blend of chitosan and soya protein isolate. Furthermore, the use of gelatine/carboxymethyl cellulose with the addition of xanthan gum (Hazirah et al , ) lignin/alginate combined with different plasticisers (Aadil & Jha, ), konjac glucomannan/ethyl cellulose in the presence of dibutyl sebacate (Li et al , ), sodium alginate/sodium carboxymethylcellulose/gelatine (Wang et al , ) and pectin/carboxymethyl cellulose (Yu et al , ) film blends was also noted recently. On the other hand, not many authors used cocoa or its fractions (e.g.…”

Pectin—Extraction from underground stem of banana and its structural, rheological, and textural analyses and grading

“…Pectin‐based coating materials have been found to be useful to increase the shelf life of freshly cut fruits (Radi et al., 2018; Ramirez et al., 2015). Pectin‐based composite materials have been shown to entrap and release food preservatives such as potassium sorbate, thus, enabling the development of new, biodegradable, environment‐friendly packing systems in food industry (Aitboulahsen et al., 2020; Yu et al., 2017). Pectin‐based matrixes, capable of entrapping micronutrients such as iron, folic acid, etc., have been developed for coating rice, in order to eliminate the problem of deficiency of these nutrients in different populations (Ahmed et al., 2017).…”