Novel Packaging Technologies in Dairy Products

Author(s):  
Nazli Turkmen ◽  
Sebnem Ozturkoglu-Budak

The packaging process is an important step in maintaining the quality characteristics of foods. Packaging foods protects products from external effects and provides product information to consumers. Due to the various changes occurring during the distribution and storage of the products, some significant quality characteristics can be lost. In recent years, novel packaging technologies have been developed to supply long shelf life, safety, and ‘fresh-like' characteristics to the products. These novel technologies include nanotechnology, modified atmosphere packaging, active packaging, and intelligent/smart packaging. Since dairy products are generally vulnerable to biological, physical, and chemical changes, they lose their quality characteristics within a short term. Therefore, the use of these novel techniques in dairy products is greatly important. This chapter informs about general principles of the novel packaging techniques and their current applications in dairy technology.

Author(s):  
Nazli Turkmen ◽  
Sebnem Ozturkoglu-Budak

The packaging process is an important step in maintaining the quality characteristics of foods. Packaging foods protects products from external effects and provides product information to consumers. Due to the various changes occurring during the distribution and storage of the products, some significant quality characteristics can be lost. In recent years, novel packaging technologies have been developed to supply long shelf life, safety, and ‘fresh-like' characteristics to the products. These novel technologies include nanotechnology, modified atmosphere packaging, active packaging, and intelligent/smart packaging. Since dairy products are generally vulnerable to biological, physical, and chemical changes, they lose their quality characteristics within a short term. Therefore, the use of these novel techniques in dairy products is greatly important. This chapter informs about general principles of the novel packaging techniques and their current applications in dairy technology.


2013 ◽  
Vol 699 ◽  
pp. 189-193 ◽  
Author(s):  
S.Y. He ◽  
Y.Q. Yu ◽  
G.C. Zhang ◽  
Q.R. Yang

Experiments were conducted to determine if vacuum cooling has an effect on the physical and chemical quality characteristics of mushroom after cooling and storage. Pressure, temperature and mass variations of mushroom were obtained during vacuum cooling. The pressure was decreased from 10000 Pa to 600 Pa within 4 min and then maintained it until the end of vacuum cooling process. Accordingly the temperature of mushroom dropped from initial 25.1 °C to 2.4 °C within 25 min, and the mass loss was 5.3%. Subsequently, vacuum cooled mushroom were stored at 1±0.5°C. and 85-95% of relative humidity for 2 weeks. The effects of vacuum cooling on the color, firmness, polyphenol oxidase and membrane permeability of mushroom after cooling and storage were determined. The results showed that vacuum cooling significantly reduced the polyphenol oxidase and membrane permeability.


2021 ◽  
Vol 11 (13) ◽  
pp. 6182
Author(s):  
Stavros Plessas ◽  
Vasillios Ganatsios ◽  
Ioanna Mantzourani ◽  
Loulouda Bosnea

The aim of the present study is the evaluation of a novel potentially probiotic Lactobacillus paracasei SP5, previously isolated from dairy products, as a starter culture of white brined cheese production, either free or immobilized on a traditional food, “trahanas”, in order to provide protection to the starter culture and a prebiotic effect. All produced cheeses were compared with cheese manufactured by renin enzyme. Several parameters that affect the acceptability, quality, and shelf life of white brined cheese were investigated, including microbial populations, physicochemical characteristics, and cheese volatiles through 70 days of ripening and storage. White brined cheese production by free or immobilized L. paracasei SP5 resulted in significantly higher acidity (over 0.8 g of lactic acid/100 g of cheese at the 70th day of ripening) and significantly reduced counts (around 50%) of coliforms, yeasts, and fungi compared to cheese produced with no starter culture. The use of the freeze-dried novel starter culture, either free or immobilized, improved the aromatic profile of cheeses as was proven through a GC-MS analysis. In addition, it should be underlined that the application of the novel strain led to white brined cheese with improved overall quality and sensory characteristics. The results indicate the potential industrial use of freeze-dried L. paracasei SP5 as a starter culture for the production of good-quality functional white brined cheeses.


Agriculture ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 599
Author(s):  
D. M. D. Rasika ◽  
Janak K. Vidanarachchi ◽  
Selma F. Luiz ◽  
Denise Rosane Perdomo Azeredo ◽  
Adriano G. Cruz ◽  
...  

Probiotics are live microorganisms which, when administered in adequate amounts, confer a health benefit on the host. Traditionally, dairy products are the major and most popular probiotic carriers. At present, there is a growing demand for non-dairy probiotic products. Both fermented and non-fermented non-dairy plant-based food products are becoming highly appealing to both dairy and non-dairy consumers worldwide. Non-dairy plant-based food matrices such as fruits, vegetables, plant-based milk, cereals, and legumes have been used successfully in producing probiotic products with the minimum recommended viable probiotic numbers at the time of consumption. However, due to the exclusion of dairy, whether these food matrices can enhance the functional properties of probiotics such as gastrointestinal survival and immune-enhancing effects needs a thorough investigation. Hence, this review focuses on some of the popular non-dairy plant-based probiotic food products and their microbiological quality characteristics in terms of maintaining probiotic viability during product storage. Their gastrointestinal tolerance in these products, other functional properties, and product qualities have also been briefly discussed.


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