Characterization of chitosan-hydroxypropyl methylcellulose blend films enriched with nettle or sage leaf extract for active food packaging applications

Bigi, Francesco; Haghighi, Hossein; Siesler, Heinz W.; Licciardello, Fabio; Pulvirenti, Andrea

doi:10.1016/j.foodhyd.2021.106979

Cited by 52 publications

(18 citation statements)

References 79 publications

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“…After loading the enzyme, the film became brittle and uneven (lumpy), with a tendency to fracture, but was still nonporous. This indicated that the enzyme was evenly distributed, which is in accordance with results reported in other studies [ 22 , 29 , 30 , 31 ]. The film, after repeated use in organic media, became softer and more susceptible to mechanical stress, while multiple shallow pores and granular structures seem to appear inside the enzyme-loaded film after 35 usage cycles.…”

Section: Resultssupporting

confidence: 92%

(Hydroxypropyl)methyl Cellulose-Chitosan Film as a Matrix for Lipase Immobilization—Part ΙΙ: Structural Studies

Vassiliadi

Tsirigotis-Maniecka

Symons

et al. 2022

Gels

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The present work reports on the structural study of a film made of a hybrid blend of biopolymers used as an enzyme carrier. A cellulose derivative (HPMC) and chitosan (CS) were combined in order to formulate a film on which Mucor miehei lipase was immobilized. The film was successfully used as a biocatalyst; however, little is known about the structure of the system. Therefore, small-angle X-ray scattering, Fourier transform infrared spectroscopy (FTIR), optical microscopy, and scanning electron microscopy (SEM), as well as microindentation measurements, were used to shed light on the structure of the promising biocatalyst. Among the results, intermolecular hydrogen bonds were observed between the amide groups of the two polymers and the lipase. The presence of the enzyme does not seem to affect the mechanical properties of the matrix. The used film after 35 cycles of reaction seemed to be fatigued and had lost part of its humidity, explaining the reduction of the enzyme activity.

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Section: Resultssupporting

confidence: 92%

(Hydroxypropyl)methyl Cellulose-Chitosan Film as a Matrix for Lipase Immobilization—Part ΙΙ: Structural Studies

Vassiliadi

Tsirigotis-Maniecka

Symons

et al. 2022

Gels

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“…The surface of the P/CH film was homogeneous, regular without any noticeable pores or cracks, demonstrating high compatibility between chitosan and pectin to form a blend. After adding the PB leaf extract into the film matrix, the film surface showed relatively smooth with several pores that related to the partial release of bioactive compounds in the leaf extract such as alkaloids, phenolic acid, amino acid on the film surface [ 69 ]. Han et al.…”

Section: Resultsmentioning

confidence: 99%

Characterizations and antibacterial activities of passion fruit peel pectin/chitosan composite films incorporated Piper betle L. leaf extract for preservation of purple eggplants

Nguyen

et al. 2022

Heliyon

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“…The finding of the present study demonstrated that 250 ppm of sage extract could exhibit antioxidant activity equal to synthetic THQ antioxidant. Bigi et al (2021) incorporated the sage extract into biopolymeric chitosan/hydroxypropyl methylcellulose coating and reported antioxidant activity due to the presence of bioactive phenolic compounds such as phenolic and flavonoids (Bigi et al, 2021). The antioxidant activity of sage extract related to presence of carnosol, rosmarinic acid, rosmanol, quinic acid, and carnosic acid (Generalić et al, 2012; Kontogianni et al, 2013; Oudjedi et al, 2019).…”

Section: Resultsmentioning

confidence: 99%

Evaluation of antioxidant properties of nanoencapsulated sage (Salvia officinalis L.) extract in biopolymer coating based on whey protein isolate and Qodumeh Shahri (Lepidium perfoliatum) seed gum to increase the oxidative stability of sunflower oil

Safarpour

Kenari

Farmani

2022

Food Science & Nutrition

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Sage leaf extract (SLE) is considered an excellent source of bioactive compounds mainly because of its high content of phenolics, widely known as natural antioxidants.This study aimed to compare the performance of free/encapsulated SLE by different coatings in protecting sunflower oil against oxidative deterioration. The coating materials were whey protein isolate and qodumeh seed gum at different ratios (1:0, 1:1, and 0:1). Each nanocapsule was analyzed for particle size, zeta potential, encapsulation efficiency, phenolics release, and SEM images. The total phenolic compounds of SLE were 31.12 mg GA/g. The antioxidant activity of SLE was increased in both DPPH and FRAP assays by increasing extract concentration from 50 to 250 ppm. All nanoparticles exhibited nanometric size, negative zeta potential, encapsulation efficiency higher than 60%, and gradual release during storage. The oxidative stability of sunflower oil with or without the incorporation of 250 ppm of free/encapsulated SLE was evaluated during 24 days of storage at 60°C. Peroxide value (PV), thiobarbituric acid value (TBA), oxidative stability index (OSI), color index (CI), and conjugated dienes (CD) were determined. COPM nanoparticles showed the lowest PV, TBA, CI, and CD but both SGUM and WHEY were more effective in delaying oil oxidation than TBHQ and free extract. Higher OSI was observed in oil-containing nanoparticles with composite coating. Results obtained reinforce the use of whey protein isolate and qodumeh seed gum as a coating for encapsulating SLE to increase the shelf life of sunflower oil as a natural antioxidant.

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Characterization of chitosan-hydroxypropyl methylcellulose blend films enriched with nettle or sage leaf extract for active food packaging applications

Cited by 52 publications

References 79 publications

(Hydroxypropyl)methyl Cellulose-Chitosan Film as a Matrix for Lipase Immobilization—Part ΙΙ: Structural Studies

(Hydroxypropyl)methyl Cellulose-Chitosan Film as a Matrix for Lipase Immobilization—Part ΙΙ: Structural Studies

Characterizations and antibacterial activities of passion fruit peel pectin/chitosan composite films incorporated Piper betle L. leaf extract for preservation of purple eggplants

Evaluation of antioxidant properties of nanoencapsulated sage (Salvia officinalis L.) extract in biopolymer coating based on whey protein isolate and Qodumeh Shahri (Lepidium perfoliatum) seed gum to increase the oxidative stability of sunflower oil

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