scholarly journals Preservative Effects of Gelatin Active Coating Containing Eugenol and Higher CO2 Concentration Modified Atmosphere Packaging on Chinese Sea bass (Lateolabrax maculatus) during Superchilling (−0.9 °C) Storage

Molecules ◽  
2020 ◽  
Vol 25 (4) ◽  
pp. 871 ◽  
Author(s):  
Qianqian Zhou ◽  
Peiyun Li ◽  
Shiyuan Fang ◽  
Jun Mei ◽  
Jing Xie
Keyword(s):  
Modified Atmosphere Packaging ◽  
Sea Bass ◽  
Co2 Concentration ◽  
Viable Count ◽  
Modified Atmosphere ◽  
Organoleptic Evaluation ◽  
K Value ◽  
C Storage ◽  
Lateolabrax Maculatus ◽  
Active Coating

The purpose of this research was to explore the fresh keeping effect of modified atmosphere packaging (MAP) with different gas ratios combined with gelatin active coatings containing eugenol on Chinese sea bass stored at −0.9 °C for 36 days. The results showed that MAP3 (60% CO2/10% O2/30% N2), together with gelatin active coatings containing eugenol, could prevent water loss, which maintained high field NMR, MRI, and organoleptic evaluation results. This hurdle technology could also effectively delay the bacterial reproduction, protein degradation, and alkaline accumulation, so it showed the lowest K value, total volatile basic nitrogen, free amino acids, total viable count, Pseudomonas spp., and H2S-producing bacteria, which better maintain the quality of sea bass.

scholarly journals Preservative Effects of Gelatin Active Coating Enriched with Eugenol Emulsion on Chinese Seabass (Lateolabrax maculatus) during Superchilling (−0.9 °C) Storage

Coatings ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 489 ◽  
Author(s):  
Zhou ◽  
Li ◽  
Fang ◽  
Liu ◽  
Mei ◽  
...  
Keyword(s):  
Viable Count ◽  
Organoleptic Evaluation ◽  
K Value ◽  
C Storage ◽  
Low Field ◽  
Basic Nitrogen ◽  
Lateolabrax Maculatus ◽  
Active Coating ◽  
Low Field Nmr

This research was to evaluate the effects of gelatin (G) active coating containing eugenol/β-cyclodextrin (βCD) emulsions combined with superchilling (−0.9 °C) on physicochemical, microbiological, and organoleptic properties of Chinese seabass samples during 30 days of storage. Results showed that seabass samples dipped in G-βCD coatings containing 0.15% or 0.3% eugenol combined with superchilling could significantly lower the total volatile basic nitrogen, K value, total viable count, H2S-producing bacteria, Pseudomonas spp. and Psychrophilic counts, and free fatty acids. Further, G-βCD coatings containing eugenol with superchilling (−0.9 °C) were more effective in retarding the water migration by low field NMR and MRI results, maintaining quality of seabass during storage according to organoleptic evaluation results.

scholarly journals Effectiveness of Sodium Alginate Active Coatings Containing Bacteriocin EFL4 for the Quality Improvement of Ready-to-Eat Fresh Salmon Fillets during Cold Storage

Coatings ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 506
Author(s):  
Jun Mei ◽  
Yong Shen ◽  
Wenru Liu ◽  
Weiqing Lan ◽  
Na Li ◽  
...  
Keyword(s):  
Cold Storage ◽  
Foodborne Pathogens ◽  
Sea Bass ◽  
Viable Count ◽  
Organoleptic Evaluation ◽  
K Value ◽  
Spoilage Bacteria ◽  
Lateolabrax Maculatus ◽  
First Time

This study developed a biopreservation method for ready-to-eat (RTE) fresh salmon fillets based on the use of bacteriocin EFL4 produced by bacteriocinogenic Enterococcus faecalis L04 previously isolated from Chinese sea bass (Lateolabrax maculatus). Bacteriocin EFL4 has the ability to inhibit the growth of several fish-spoilage bacteria and foodborne pathogens, including Staphylococcus aureus, Escherichia coli, Shewanella putrefaciens, Pseudomonas fluorescens and Listeria monocytogenes, and the minimal inhibitory concentration (MIC) for S. putrefaciens was 0.32 μg/mL. The biopreservation potential of bacteriocin EFL4 for RTE fresh salmon fillets during cold storage at 4 °C was tested for the first time on a laboratory scale. Microbiological and physicochemical properties, as well as organoleptic evaluations, have been done during the biopreservation trials. The results show that RTE fresh salmon fillets treated with 0.64 μg/mL bacteriocin EFL4 could significantly (p < 0.05) reduce the total viable count (TVC), total volatile basic nitrogen (TVB-N), K value and maintain the quality of RTE fresh salmon fillets during 8-day storage on the basis of the organoleptic evaluation results.

scholarly journals Modeling the Effect of Active Modified Atmosphere Packaging on the Microbial Stability and Shelf Life of Gutted Sea Bass

2019 ◽  
Vol 9 (23) ◽  
pp. 5019 ◽  
Author(s):  
Theofania Tsironi ◽  
Athina Ntzimani ◽  
Eleni Gogou ◽  
Maria Tsevdou ◽  
Ioanna Semenoglou ◽  
...  
Keyword(s):  
Growth Rate ◽  
Shelf Life ◽  
Microbial Growth ◽  
Modified Atmosphere Packaging ◽  
Sea Bass ◽  
Viable Count ◽  
Lag Phase ◽  
Modified Atmosphere ◽  
Total Viable Count ◽  
Microbial Stability

The aim of the study was the evaluation and mathematical modeling of the effect of active modified atmosphere packaging (MAP), by the incorporation of CO2 emitters in the package, on the microbial stability and shelf life of gutted sea bass during refrigerated storage. Gutted sea bass samples were packaged in modified atmosphere (50% CO2–40% N2–10% O2) with and without CO2 emitters (ACT-MAP, MAP) (gas/product volume ratio 3:1) and stored at isothermal conditions: 0 °C, 5 °C, and 10 °C. The gas concentration in the package headspace (%CO2, %O2) and microbial growth (total viable count, TVC, Pseudomonas spp., Enterobacteriaceae spp., lactic acid bacteria) were monitored during storage. The microbial growth was modeled using the Baranyi growth model, and the kinetic parameters (microbial growth rate, lag phase) were estimated at the tested temperature and packaging conditions. The results showed that the ACT-MAP samples presented significantly lower microbial growth compared to the MAP samples. The growth rate of the total viable count at 0 °C was 0.175 and 0.138 d−1 for the MAP and ACT-MAP sea bass, respectively (p < 0.05). The shelf life of the MAP sea bass at 0–10 °C (based on a final TVC value: 7 log CFU g−1) was extended 4–7 days with the addition of a CO2 emitter in the package. The CO2 concentration in the ACT-MAP samples was stabilized at approximately 60%, while the CO2 in the MAP samples was approximately 40% at the end of the shelf life.

Prolonged Shelf Life and Reduced Drip Loss of Chicken Filets by the Use of Carbon Dioxide Emitters and Modified Atmosphere Packaging

2014 ◽  
Vol 77 (7) ◽  
pp. 1133-1141 ◽  
Author(s):  
ASKILD L. HOLCK ◽  
MARIT K. PETTERSEN ◽  
MARIE H. MOEN ◽  
ODDVIN SØRHEIM
Keyword(s):  
Carbon Dioxide ◽  
Shelf Life ◽  
Production Efficiency ◽  
Modified Atmosphere Packaging ◽  
Storage Period ◽  
Co2 Concentration ◽  
Life Extension ◽  
Modified Atmosphere ◽  
Drip Loss ◽  
C Storage

Modified atmosphere packaging containing CO2 is widely used for extending the shelf life of chicken meat. Active packaging by adding CO2 emitter sachets to packages of meat is an alternative to traditional modified atmosphere packaging. The purpose of the study was to investigate the shelf life of chicken filets under different CO2 concentrations at 4°C storage. The inhibition of microbial growth was proportional to the CO2 concentration. Storage in 100% CO2 both with and without a CO2 emitter sachet gave a microbiological shelf-life extension of 7 days compared with 60% CO2. Carnobacterium divergens, Carnobacterium sp., and Lactococcus sp. were the dominating species at the end of the storage period. During storage in pure CO2, the carbon dioxide dissolved in the meat and caused the collapse of the packages. The resulting squeeze of the meat lead to a severe increase in drip loss. The drip loss was reduced profoundly by using the CO2 emitting sachet in the packages. The addition of CO2 emitters can easily be implemented at industrial packaging lines without reduction in production efficiency.

scholarly journals Antimicrobial Carvacrol Incorporated in Flaxseed Gum-Sodium Alginate Active Films to Improve the Quality Attributes of Chinese Sea bass (Lateolabrax maculatus) during Cold Storage

Molecules ◽  
2019 ◽  
Vol 24 (18) ◽  
pp. 3292 ◽  
Author(s):  
Shiyuan Fang ◽  
Qianqian Zhou ◽  
Yan Hu ◽  
Feng Liu ◽  
Jun Mei ◽  
...  
Keyword(s):  
Sodium Alginate ◽  
Cold Storage ◽  
Sea Bass ◽  
Edible Films ◽  
Bacterial Cells ◽  
Organoleptic Evaluation ◽  
K Value ◽  
Lateolabrax Maculatus ◽  
Coating Agents ◽  
Flaxseed Gum

The objective of this research was to explore the antimicrobial activity and mechanism of carvacrol against Vibrio Parahemolyticus, Shewanella putrefaciens, Staphylococcus aureus and Pseudomonas fluorescens and evaluate the effect of the addition of carvacrol/β-cyclodextrin emulsions to flaxseed gum (FSG)-sodium alginate (SA) edible films on the preservation of Chinese sea bass (Lateolabrax maculatus) fillets during refrigerated storage. The minimum inhibitory concentration (MIC) of carvacrol against V. parahemolyticus, S. putrefaciens, S. aureus and P. fluorescens were 0.5, 0.5, 0.125, and 0.5 mg/mL, respectively. Alkaline phosphatase activity assay, nucleotide and protein leakage, and scanning electron microscope demonstrated that carvacrol damaged the external structure of the tested bacterial cells causing leakage of cytoplasmic components. At the same time, when FSG-SA films containing carvacrol used as coating agents for Chinese sea bass fillets cold storage, FSG-SA films containing 1.0 or 2.0 mg/mL carvacrol could significantly reduce TVB-N content, K-value, the degree of microbial deterioration and maintain quality of sea bass fillets according to organoleptic evaluation results.

scholarly journals Active coating and modified-atmosphere packaging to extend the shelf life of Fior di Latte cheese

2009 ◽  
Vol 92 (3) ◽  
pp. 887-894 ◽  
Author(s):  
A. Conte ◽  
D. Gammariello ◽  
S. Di Giulio ◽  
M. Attanasio ◽  
M.A. Del Nobile
Keyword(s):  
Shelf Life ◽  
Modified Atmosphere Packaging ◽  
Modified Atmosphere ◽  
Active Coating

Modified atmosphere packaging with a small change in gas ratio could maintain pork quality during −3 °C storage

Food Control ◽  
2020 ◽  
Vol 109 ◽  
pp. 106943 ◽  
Author(s):  
Keping Ye ◽  
Daming Ding ◽  
Xun Zhu ◽  
Zicheng Wu ◽  
Qingyan Hu ◽  
...  
Keyword(s):  
Modified Atmosphere Packaging ◽  
Pork Quality ◽  
Modified Atmosphere ◽  
C Storage ◽  
Small Change ◽  
Gas Ratio

scholarly journals The effect of CO2 concentration on sweet cherry preservation in modified atmosphere packagingtitle not given

2020 ◽  
Vol 38 (No. 2) ◽  
pp. 103-108 ◽  
Author(s):  
Shaohua Xing ◽  
Xiaoshuan Zhang ◽  
Hansheng Gong
Keyword(s):  
Sweet Cherry ◽  
Modified Atmosphere Packaging ◽  
Co2 Concentration ◽  
Storage Conditions ◽  
Inhibitory Effect ◽  
Soluble Solids ◽  
Storage Device ◽  
Modified Atmosphere ◽  
Quality Change ◽  
Sweet Cherries

The effect of CO2 concentrations on the preservation of sweet cherries in modified atmosphere packaging was greatly different. In the present paper, an accurate gas-regulating storage device was used to set the concentrations of CO2 at 0%, 5%, 10%, 15%, 20% and 25%, respectively (O2 was set at 5% and the remaining parts were filled with N2) to store sweet cherries. Then the quality change of sweet cherries was determined aproximately from –1 to +1 °C and from 80 to 85% relative humidity. The results showed that all six air treatments had a certain inhibitory effect on deterioration of sweet cherries. In particular, the 10% CO2 group could reduce rotting rate, maintain firmness, delay the change of soluble solids and vitamin C, reduce the activity of polyphenol oxidase and peroxidase. This group always had good firmness, nutrition and taste after 120 days of storage. So the 10% CO2 concentration provides suitable gas storage conditions of sweet cherries in modified atmosphere packaging.<br /><br />

Effect of modified atmosphere packaging on physicochemical and microbiological characteristics of Graviera Agraphon cheese during refrigerated storage

2019 ◽  
Vol 86 (4) ◽  
pp. 483-489
Author(s):  
Nikolaos Solomakos ◽  
Maria Govari ◽  
Evropi Botsoglou ◽  
Andreana Pexara
Keyword(s):  
Foodborne Pathogens ◽  
Modified Atmosphere Packaging ◽  
Modified Atmosphere ◽  
Refrigerated Storage ◽  
Atmospheric Conditions ◽  
E Coli ◽  
Ph Values ◽  
C Storage ◽  
Microbiological Characteristics ◽  
Yeasts And Molds

AbstractThe aim of this work was to examine the effect of modified atmosphere packaging on the physicochemical and microbiological changes of Graviera Agraphon cheese during refrigerated storage. Blocks of Graviera Agraphon cheese weighing around 200 g were packaged under natural (control) or modified atmosphere packaging (MAP) conditions (50% N2 – 50% CO2) and stored at 4 °C or 10 °C for up to 85 d. Prior to packaging, groups of cheese blocks were inoculated with one each of the following foodborne pathogens at around 104 log cfu/g: Listeria monocytogenes, Salmonella Typhimurium, Escherichia coli O157:H7 or Staphylococcus aureus, whilst further groups of cheese blocks were not inoculated. The protein, fat, moisture and salt contents as well as the pH of control and MAP cheese samples did not change significantly (P > 0.05) throughout 4 °C storage, while the pH values of control and MAP cheese samples were significantly (P < 0.05) reduced at 10 °C storage. At 10 °C storage, yeasts and molds, psychrotrophs and lactic acid bacteria (LAB) were significantly higher (P < 0.05) for the normal atmosphere than the MAP cheese samples after the 4th, 8th and 4th days, respectively. At 4 °C storage, the yeasts and molds or psychrotrophs were significantly higher (P < 0.05) than those of control after the 6th and 15th days, respectively at 4 °C storage. All foodborne pathogens showed a higher decrease (P < 0.05) at 10 °C than 4 °C storage. S. aureus proved more sensitive in inactivation in the MAP conditions than atmospheric conditions. L. monocytogenes and S. aureus presented a higher decrease than that of E. coli O157:H7 and S. Typhimurium. In conclusion, MAP proved efficient in retarding the growth of yeasts, molds, psychrotrophs and E. coli O157:H7, L. monocytogenes, S. Typhimurium and S. aureus in Graviera Agraphon cheese during refrigerated storage at 4 and 10 °C.

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