Effects of pectin/chitosan composite and bi-layer coatings combined with Artemisia dracunculus essential oil on the mackerel’s shelf life

Author(s):  
Mahsa Esmaeili ◽  
Ainaz Khodanazary
2013 ◽  
Vol 781-784 ◽  
pp. 1550-1557 ◽  
Author(s):  
Ye Lu ◽  
Li Li ◽  
Fu Xin Yang ◽  
Heng Guang Zhang

Novel composites consisting of chitosan (Ch), polyvinyl alcohol (PVA), and thyme essential oil (T) were prepared as a new packing materials. The effects of Ch+PVA+T film on quality and shelf life of Channa argus stored under refrigeration were investigated. The control and the treated fish samples were analyzed periodically for chemical (pH, TVB-N), microbiological (total viable count), and sensory characteristics. The results indicate that samples treated remained acceptable up 15 days while the untreated samples up to11 days of storage. The thyme essential oil addition in samples contributes to a slower process of fish spoilage. The preservative effect is greater as the oil concentration is greater.


Polymers ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 716
Author(s):  
Milad Yaghoubi ◽  
Ali Ayaseh ◽  
Kazem Alirezalu ◽  
Zabihollah Nemati ◽  
Mirian Pateiro ◽  
...  

The present study was conducted to assess the impact of chitosan coating (1%) containing Artemisia fragrans essential oil (500, 1000, and 1500 ppm) as antioxidant and antimicrobial agent on the quality properties and shelf life of chicken fillets during refrigerated storage. After packaging meat samples, physicochemical, microbiological, and organoleptic attributes were evaluated at 0, 3, 6, 9, and 12 days at 4 °C. The results revealed that applied chitosan (CH) coating in combination with Artemisia fragrans essential oils (AFEOs) had no significant (p < 0.05) effects on proximate composition among treatments. The results showed that the incorporation of AFEOs into CH coating significantly reduced (p < 0.05) pH, thiobarbituric acid reactive substances (TBARS), and total volatile base nitrogen (TVB-N), especially for 1% CH coating + 1500 ppm AFEOs, with values at the end of storage of 5.58, 1.61, and 2.53, respectively. The coated samples also displayed higher phenolic compounds than those obtained by uncoated samples. Coated chicken meat had, significantly (p < 0.05), the highest inhibitory effects against microbial growth. The counts of TVC (total viable counts), coliforms, molds, and yeasts were significantly lower (p < 0.05) in 1% CH coating + 1500 ppm AFEOs fillets (5.32, 3.87, and 4.27 Log CFU/g, respectively) at day 12. Organoleptic attributes of coated samples also showed the highest overall acceptability scores than uncoated ones. Therefore, the incorporation of AFEOs into CH coating could be effectively used for improving stability and shelf life of chicken fillets during refrigerated storage.


2021 ◽  
Vol 45 (4) ◽  
Author(s):  
Naira Sahakyan ◽  
Pierre Andreoletti ◽  
Mustapha Cherkaoui‐Malki ◽  
Margarit Petrosyan ◽  
Armen Trchounian

Foods ◽  
2021 ◽  
Vol 10 (1) ◽  
pp. 121
Author(s):  
Ghita Amor ◽  
Mohammed Sabbah ◽  
Lucia Caputo ◽  
Mohamed Idbella ◽  
Vincenzo De Feo ◽  
...  

The essential oil (EO) from basil—Ocimum basilicum—was characterized, microencapsulated by vibration technology, and used to prepare a new type of packaging system designed to extend the food shelf life. The basil essential oil (BEO) chemical composition and antimicrobial activity were analyzed, as well as the morphological and biological properties of the derived BEO microcapsules (BEOMC). Analysis of BEO by gas chromatography demonstrated that the main component was linalool, whereas the study of its antimicrobial activity showed a significant inhibitory effect against all the microorganisms tested, mostly Gram-positive bacteria. Moreover, the prepared BEOMC showed a spheroidal shape and retained the EO antimicrobial activity. Finally, chitosan-based edible films were produced, grafted with BEOMC, and characterized for their physicochemical and biological properties. Since their effective antimicrobial activity was demonstrated, these films were tested as packaging system by wrapping cooked ham samples during 10 days of storage, with the aim of their possible use to extend the shelf life of the product. It was demonstrated that the obtained active film can both control the bacterial growth of the cooked ham and markedly inhibit the pH increase of the packaged food.


2017 ◽  
Vol 221 ◽  
pp. 1069-1076 ◽  
Author(s):  
Veronica Sirocchi ◽  
Frank Devlieghere ◽  
Nanou Peelman ◽  
Gianni Sagratini ◽  
Filippo Maggi ◽  
...  

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