scholarly journals Bioactive peptides supplemented raw buffalo milk: biological activity, shelf life and quality properties during cold preservation

2021 ◽  
Author(s):  
Mohamed T. El-Saadony ◽  
Osama S. F. Khalil ◽  
Ali Osman ◽  
Mashaeal S. Alshilawi ◽  
Ayman E. Taha ◽  
...  
Keyword(s):  
Biological Activity ◽  
Shelf Life ◽  
Bioactive Peptides ◽  
Buffalo Milk ◽  
Cold Preservation ◽  
Quality Properties

EFFECT OF LEMON PEEL AND PULP EXTRACT ON SOME LOCAL KURDISH RAM MEAT QUALITIES AND ITS SHELF LIFE

2020 ◽  
pp. 140-153
Keyword(s):  
Shelf Life ◽  
Chemical Properties ◽  
Thiobarbituric Acid ◽  
Control Group ◽  
Meat Sample ◽  
Refrigerated Storage ◽  
Immersion Method ◽  
Quality Properties ◽  
Lemon Peel ◽  
Meat Samples

To investigate the effectiveness of adding lemon peels and pulp extracts on some quality properties and shelf-life of the sheep longisimussdorsi muscle during refrigerated storage at 4±1°C for 0, 4, and 8 days for this purpose am meat trim of visible fat and connective tissue, they cut in small cubes. The meat samples divide into four equal proportions and mix with different concentrations of lemon peel and pulp extract according to the following formulations: Control; T1 1%; T2 2% and T3 3% of lemon peel and pulp extract, by applied immersion method. The results showed acceptable results of moisture content, Water-holding capacity cooking loss, thiobarbituric acid, met-myoglobin, myoglobin, and sensory traits of the samples treated with lemon peel in comparison to the control group. The phiso-chemical traits changed during the storage periods but the meat sample treated with lemon extract was more stable than control groups. These results suggested that using lemon peels and pulp extracts to maintain physio-chemical properties of ram meat and extend shelf-life during refrigerated storage, which may have implications of meat processors.

scholarly journals Recent Developments in Seafood Packaging Technologies

Foods ◽  
2021 ◽  
Vol 10 (5) ◽  
pp. 940
Author(s):  
Michael G. Kontominas ◽  
Anastasia V. Badeka ◽  
Ioanna S. Kosma ◽  
Cosmas I. Nathanailides
Keyword(s):  
Shelf Life ◽  
Food Packaging ◽  
Modified Atmosphere Packaging ◽  
High Water ◽  
Edible Films ◽  
Nitrogenous Compounds ◽  
Quality Properties ◽  
Unsaturated Lipids ◽  
Active Food Packaging ◽  
Seafood Products

Seafood products are highly perishable, owing to their high water activity, close to neutral pH, and high content of unsaturated lipids and non-protein nitrogenous compounds. Thus, such products require immediate processing and/or packaging to retain their safety and quality. At the same time, consumers prefer fresh, minimally processed seafood products that maintain their initial quality properties. The present article aims to review the literature over the past decade on: (i) innovative, individual packaging technologies applied to extend the shelf life of fish and fishery products, (ii) the most common combinations of the above technologies applied as multiple hurdles to maximize the shelf life of seafood products, and (iii) the respective food packaging legislation. Packaging technologies covered include: Modified atmosphere packaging; vacuum packaging; vacuum skin packaging; active food packaging, including oxygen scavengers; carbon dioxide emitters; moisture regulators; antioxidant and antimicrobial packaging; intelligent packaging, including freshness indicators; time–temperature indicators and leakage indicators; retort pouch processing and edible films; coatings/biodegradable packaging, used individually or in combination for maximum preservation potential.

scholarly journals Effect of Chitosan Coating Incorporated with Artemisia fragrans Essential Oil on Fresh Chicken Meat during Refrigerated Storage

Polymers ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 716
Author(s):  
Milad Yaghoubi ◽  
Ali Ayaseh ◽  
Kazem Alirezalu ◽  
Zabihollah Nemati ◽  
Mirian Pateiro ◽  
...  
Keyword(s):  
Essential Oil ◽  
Shelf Life ◽  
Thiobarbituric Acid ◽  
Chicken Meat ◽  
Refrigerated Storage ◽  
Quality Properties ◽  
Overall Acceptability ◽  
Chitosan Coating ◽  
The Impact ◽  
Organoleptic Attributes

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.

scholarly journals The effect of ionizing radiation and storage temperature on the post-harvest growth and some quality properties of mushrooms (Agaricus bisporus)

2013 ◽  
Vol 39 (2) ◽  
pp. 207-219 ◽  
Author(s):  
Kryspina Śmierzchalska ◽  
Elżbieta Wojniakiewicz
Keyword(s):  
Ionizing Radiation ◽  
Shelf Life ◽  
Agaricus Bisporus ◽  
Storage Temperature ◽  
Stem Elongation ◽  
Quality Properties ◽  
Bacterial Diseases ◽  
Post Harvest ◽  
And Storage

The effects of a dose of 2.0 kGy (Co-60) and three ranges of storage temperature (0-4°C, 9-11°C, 18-19°C) on increasing the shelf-life and some quality properties of the mushrooms were investigated. The retardation of mushroom growth and ageing by ionizing radiation was estimated by measurements of the cap diameter, stem elongation, cap opening and discoloration of cap surface. The control of fungal and bacterial diseases was also evaluated. The effect of lower doses, 0.5 and 1.0 kGy, was compared at the storage temperature of 10°C. The irradiation of mushrooms soon after harvest and storage at temperatures of 10 and 16°C allowed the retention of quality and increased the shelf-life to 8 days; at 18-19°C to 6 days.

scholarly journals The Influence of Supercritical Carbon Dioxide on Graham Flour Enzyme Polyphenol Oxidase Activity

Molecules ◽  
2020 ◽  
Vol 25 (24) ◽  
pp. 5981
Author(s):  
Gordana Hojnik Podrepšek ◽  
Željko Knez ◽  
Maja Leitgeb
Keyword(s):  
Shelf Life ◽  
Polyphenol Oxidase ◽  
Specific Activity ◽  
Total Proteins ◽  
Polyphenol Oxidase Activity ◽  
Whole Wheat Flour ◽  
Quality Properties ◽  
Whole Wheat ◽  
End Use ◽  
Treatment Pressure

Graham flour is a form of whole wheat flour made by grinding the endosperm and is thus also the most nutritious. Generally, the enzyme polyphenol oxidase (PPO) catalyzes two different reactions in the presence of molecular oxygen: the hydroxylation of monophenols to ortho-diphenol and the oxidation of o-diphenol to o-quinone. The purpose of the work was to inactivate PPO activity to extend the shelf life of graham flour and at the same time preserve all the of its high-quality properties. The influence of supercritical CO2 (scCO2) treatment on PPO activity in graham flour was investigated. First, graham flour was exposed to scCO2 conditions, then the proteins were extracted, and in the last step the concentration of total proteins and the specific activity of the PPO enzyme were determined by spectrophotometric assay. PPO activity decreased with an increase in treatment pressure. Furthermore, the flour quality characteristics that meet all needs for wheat end-use products after scCO2 treatment have been preserved. No major changes in the structure of the granulate or shape of the flour particles were observed. A slightly reduced value of the moisture content in scCO2-treated graham flour also implies an extension of the shelf life.

Combined modified atmosphere packaging and guar gum edible coatings to preserve blackberry (Rubus glaucus Benth)

2020 ◽  
pp. 108201322095951
Author(s):  
Diego A Pérez ◽  
José M Gómez ◽  
Diego A Castellanos
Keyword(s):  
Weight Loss ◽  
Shelf Life ◽  
Polylactic Acid ◽  
Polyethylene Terephthalate ◽  
Guar Gum ◽  
Modified Atmosphere Packaging ◽  
Edible Coating ◽  
Point Of View ◽  
Modified Atmosphere ◽  
Quality Properties

Blackberry fruits are fresh products with wide market possibilities but of very limited shelf life (3–6 days). To develop preservation alternatives, the effect and interaction of a modified atmosphere packaging and an edible coating based on guar gum were determined on the shelf life and quality properties of blackberry cv. Castilla stored at 5 ℃. Three types of packaging were evaluated: (1) perforated polyethylene terephthalate clamshells, (2) sealed polyethylene terephthalate clamshells, and (3) sealed polyethylene terephthalate clamshells with a polylactic acid film on top. In turn, two types of coating were evaluated: coatings of guar gum solutions at (1) 0.3% and (2) 0.4% in water. During storage, an index of deterioration and different quality properties were evaluated. In the polyethylene terephthalate packages with polylactic acid, an equilibrium modified atmosphere packaging was formed. Weight loss was much lower for the sealed polyethylene terephthalate and polyethylene terephthalate + polylactic acid (<2%) compared to fruits in perforated clamshells, with no significant differences between these two types of packaging. It was possible to observe the treatment with an edible coating of 0.3% gum guar and perforated clamshells (guar gum 0.3/N) presented the lowest deterioration rate and preserve the fruit longer time (13 days) although with a high weight loss (23.23%) while the treatment with polyethylene terephthalate and polylactic acid film + edible coating of gum guar (guar gum 03/polylactic acid) kept the samples during 12 days with a lower weight loss (1.75%). This latter combination of equilibrium modified atmosphere packaging with a biodegradable film and the guar gum edible coating can be an interesting treatment from a commercial point of view.

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