scholarly journals Development of Active Packaging Based on Agar-Agar Incorporated with Bacteriocin of Lactobacillus sakei

Biomolecules ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 1869
Author(s):  
Camila Ramão Contessa ◽  
Nathieli Bastos de Souza ◽  
Guilherme Battú Gonçalo ◽  
Catarina Motta de Moura ◽  
Gabriela Silveira da Rosa ◽  
...  
Keyword(s):  
External Environment ◽  
Microbial Reduction ◽  
Lactobacillus Sakei ◽  
Food Matrix ◽  
Physical Barrier ◽  
Handling Characteristics ◽  
Thermotolerant Coliforms ◽  
Microbiological Stability ◽  
Coagulase Positive Staphylococci ◽  
Safety And Stability

In the search for new biodegradable materials and greater microbiological safety and stability of perishable food products, this study aimed to develop a bioplastic antibacterial film incorporating bacteriocin for application in commercial curd cheese and monitoring of microbiological stability. Films with good handling characteristics as well as physical, barrier, and mechanical properties were obtained. Regarding the antibacterial activity, the microbial reduction was demonstrated in a food matrix, obtaining a reduction of 3 logarithmic cycles for the group of coagulase positive staphylococci and from 1100 to <3.00 MPN/g in the analysis of thermotolerant coliforms. Therefore, the film presented food barrier characteristics with the external environment and adequate migration of the antibacterial compound to the product, contributing to the reduction of contamination of a food with high initial microbial load.

scholarly journals Nanoencapsulation of Polyphenols towards Dairy Beverage Incorporation

Beverages ◽  
2018 ◽  
Vol 4 (3) ◽  
pp. 61 ◽  
Author(s):  
Sara Silva ◽  
Mariana Veiga ◽  
Eduardo Costa ◽  
Ana Oliveira ◽  
Ana Madureira ◽  
...  
Keyword(s):  
Phenolic Compounds ◽  
Deleterious Effect ◽  
Food Industry ◽  
Food Matrix ◽  
Physical Barrier ◽  
Food Grade ◽  
Biological Potential ◽  
The Matrix ◽  
Dairy Beverages ◽  
Formation Of Complexes

Phenolic compounds, while widely recognized for their biological potential, when added into food matrixes may interact with food constituents. One example of this is the interaction between phenolic compounds and proteins, that may result in the formation of complexes and alter the bioavailability of both phenolic compounds and the nutrient availability. Moreover, when adding compounds to improve the functionality of a food matrix, these interactions may compromise the perceived benefits of the additions. Nanoencapsulation has been considered one of the means to circumvent these interactions, as they may function as a physical barrier between the phenolic compounds and the matrix (preventing not only the loss of bioactivity, but eventual sensorial alterations of the foods), protect phenolic compounds through the gastrointestinal tract, and may enhance phenolic absorption through cellular endocytosis. However, despite these advantages the food industry is still limited in its nanotechnological solutions, as special care must be taken to use food-grade encapsulants which will not pose any deleterious effect towards human health. Therefore, this review aims to provide an encompassing view of the existing advantages and limitations of nanotechnology, associated with the inclusion of phenolic compounds in dairy beverages.

scholarly journals Microbiological quality assessment of five common foods sold at different points of sale in Burkina-Faso

2021 ◽  
Author(s):  
Muller Kiswendsida Abdou COMPAORE ◽  
Stéphane Dissinviel KPODA ◽  
Raoul Bazoin Sylvain BAZIE ◽  
Marcelline OUEDRAOGO ◽  
Alphonse YAKORO ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Food Safety ◽  
Burkina Faso ◽  
Microbiological Quality ◽  
Microbial Quality ◽  
Food Hygiene ◽  
Different Types ◽  
Thermotolerant Coliforms ◽  
Coagulase Positive Staphylococci

The aim of the present study was to assess the microbial quality of five different types of food such as bread, pasta, rice with sauce, beans and milk sold in five localities of Burkina Faso. One hundred and one (101) samples were collected and microbial quality were assessed by evaluating the food hygiene indicators such as total aerobic mesophilic flora, total coliforms, thermotolerant coliforms, yeast and mould. Food safety indicators such as Escherichia coli , Salmonella , coagulase-positive staphylococci, Clostridium perfringens and Bacillus cereus were checked too. All samples were analyzed under ISO methods.

scholarly journals Hygienic-sanitary quality of ready-to-eat salmon sashimi (Salmo Salar)

2021 ◽  
Vol 10 (12) ◽  
pp. e573101220900
Author(s):  
Iara Oliveira Arruda ◽  
Talitha Maria Porfírio ◽  
Edgar Nascimento ◽  
Demétrio de Abreu Sousa ◽  
Daniel Oster Ritter ◽  
...  
Keyword(s):  
Vibrio Parahaemolyticus ◽  
Antimicrobial Agents ◽  
Heterotrophic Bacteria ◽  
International Standards ◽  
Thermotolerant Coliforms ◽  
Safe Limits ◽  
Resistance To Penicillin ◽  
Coagulase Positive Staphylococci

Fifty sashimi samples from 5 restaurants were characterized for enumeration of Aerobic Psychrotrophic Heterotrophic Bacteria (APHB) and Aerobic Mesophilic Heterotrophic Bacteria (AMHB), Enterobacteriaceae, coliforms at 45ºC (thermotolerant coliforms), coagulase-positive Staphylococci, presence of Vibrio parahaemolyticus and Salmonella sp., and determination of hydrogen potential (pH) and total volatile basic nitrogen (TVB-N). The bacterial isolates were evaluated for their resistance profile to the antimicrobial agents Penicillin, Ampicillin, Cefoxitin, Cefotaxime, Amikacin, Gentamicin, Tetracycline, and Trimethropim-sulfamethoxazole. The results showed that APHB, AMHB and coagulase-positive Staphylococci counts and the determination of pH and TVB-N were in accordance with national and international standards adopted as safe limits for consumption. In contrast, the Enterobacteriaceae and thermotolerant coliforms counts and presence of Salmonella sp. and V. parahaemolyticus were in disagreement with those standards, raising concern about the hygienic-sanitary quality of sashimi. The Staphylococcus aureus and V. parahaemolyticus isolates showed resistance to Penicillin, Ampicillin, Cefoxitin, Cefotaxime, Tetracycline, Gentamicin, and Amikacin, while the Salmonella sp. isolate showed no resistance to all the antimicrobial agents studied. The results showed that 48% of the samples were fit for consumption while 52% had unsatisfactory hygienic-sanitary quality for the parameters evaluated.

TO SUSTAINABLE FUNCTIONING OF THE TRANSPORTATION COMPLEX IN EMERGENCY SITUATIONS

2020 ◽  
pp. 08-12
Author(s):  
Vladimir Victorovich Tsyganov ◽  
Sergey Alexandrovich Savushkin ◽  
Bogdan Vasilyevich Gavkalyuk
Keyword(s):  
Climate Change ◽  
External Environment ◽  
Self Organization ◽  
Global Competition ◽  
Training Adaptation ◽  
Emergency Situations ◽  
The Face ◽  
New Challenges ◽  
Transport Complex ◽  
Safety And Stability

New challenges and threats to the transport complex are caused by dangerous changes in the external environment, including a pandemic, climate change, and heightened global competition. These changes can lead to emergency situations and deterioration in the functioning of the transport complex. In the face of such dangerous changes, the efficiency, safety and stability of the functioning of the transport complex should be based on training, adaptation and self-organization.

scholarly journals Nanoteknolojik Tekniklerle Karotenoid Bileşenlerin Enkapsülasyonundaki Son Gelişmeler

2018 ◽  
Vol 6 (8) ◽  
pp. 1066
Author(s):  
Nuray İnan-Çınkır ◽  
Erdal Ağçam ◽  
Asiye Akyıldız
Keyword(s):  
Controlled Release ◽  
Encapsulation Efficiency ◽  
Storage Conditions ◽  
Matrix Degradation ◽  
Bioactive Components ◽  
Food Matrix ◽  
Physical Barrier ◽  
Coating Materials ◽  
Recent Developments ◽  
And Storage

Carotenoid components have a significant potential in terms of the food and health industry. They are undergone oxidation and isomerization with the influence of unfavourable environmental conditions depending on process and storage conditions. In addition, their bioavailability is reduced due to inexactly release from food matrix, degradation during digestion, and to be hidrofobic properties. Encapsulation is defined as a effective process that provides bioactive components coated with suitable coating materials by creating of a protective physical barrier against undesirable conditions. In recent years, nanoencapsulation technology together with development of nanotechnology has been gradually increased in order to improve the resistance, processing and bioavailability of the carotenoids. Studies showed that nanoencapsulation has high potential for having features such as providing more surface area, high encapsulation efficiency-yield, solubility enhancement and developing controlled release compared to microencapsulation. In this review, it is emphasized on the efficiency of using the nanoencapsulation techniques to increase stability of carotenoid components, and the recent developments.

scholarly journals Polymeric Micelles: A Promising Pathway for Dermal Drug Delivery

Materials ◽  
2021 ◽  
Vol 14 (23) ◽  
pp. 7278
Author(s):  
Ana Parra ◽  
Ivana Jarak ◽  
Ana Santos ◽  
Francisco Veiga ◽  
Ana Figueiras
Keyword(s):  
Drug Delivery ◽  
Polymeric Micelles ◽  
External Environment ◽  
Physical Barrier ◽  
Promising Alternative ◽  
Lower Solubility ◽  
Pharmaceutical Industries ◽  
Dermal Drug Delivery ◽  
Cutaneous Application ◽  
Great Development

Nanotechnology is an area in great development and with application in the most varied fields of science, including cosmetic and pharmaceutical industries. Because conventional formulations for topical application are not always able to effectively penetrate the physical barrier that human skin exerts against factors and compounds of the external environment, polymeric micelles appear as alternative carriers for drugs and active ingredients delivery, also allowing ingredients with lower solubility and higher lipophilicity to be delivered. In fact, the augmented bioavailability of drugs, greater efficacy even at a lower dose, and selective drug delivery in specific organelles are very interesting advantages of the polymeric micelles usage in cutaneous application. As a consequence, they show a reduction in many of the local and systemic adverse effects, which might lead to an increase in patient compliance to the therapeutics, constituting a promising alternative to conventional topical formulations.

Advances in Microprobe Analysis Applied to Muscle, Nerve and Gland

1982 ◽  
Vol 40 ◽  
pp. 404-407
Author(s):  
T. E. Hutchinson ◽  
D. E. Johnson ◽  
A. C. Lee ◽  
E. Y. Wang
Keyword(s):  
Biological Tissue ◽  
Microprobe Analysis ◽  
Physiological State ◽  
External Environment ◽  
Physiological Relevance ◽  
Muscle Nerve ◽  
Technique Development

Microprobe analysis of biological tissue is now in the end phase of transition from instrumental and technique development to applications pertinent to questions of physiological relevance. The promise,implicit in early investigative efforts, is being fulfilled to an extent much greater than many had predicted. It would thus seem appropriate to briefly report studies exemplifying this, ∿. In general, the distributions of ions in tissue in a preselected physiological state produced by variations in the external environment is of importance in elucidating the mechanisms of exchange and regulation of these ions.

Microanatomy of the Periplasm of Bacillus Licheniformis

1971 ◽  
Vol 29 ◽  
pp. 262-263
Author(s):  
B.K. Ghosh
Keyword(s):  
Cell Wall ◽  
Plasma Membrane ◽  
Bacillus Licheniformis ◽  
External Environment ◽  
Permeability Barrier ◽  
Periplasmic Space ◽  
Modified Technique ◽  
Gram Positive ◽  
Gram Negative ◽  
Gram Positive Bacteria

Periplasm of bacteria is the space outside the permeability barrier of plasma membrane but enclosed by the cell wall. The contents of this special milieu exterior could be regulated by the plasma membrane from the internal, and by the cell wall from the external environment of the cell. Unlike the gram-negative organism, the presence of this space in gram-positive bacteria is still controversial because it cannot be clearly demonstrated. We have shown the importance of some periplasmic bodies in the secretion of penicillinase from Bacillus licheniformis.In negatively stained specimens prepared by a modified technique (Figs. 1 and 2), periplasmic space (PS) contained two kinds of structures: (i) fibrils (F, 100 Å) running perpendicular to the cell wall from the protoplast and (ii) an array of vesicles of various sizes (V), which seem to have evaginated from the protoplast.

Pengembangan Butik Muslim yang Terkait dengan Pelayanan Prima dan Kualitas Produk pada Butik Firta Collection

Liquidity ◽  
2018 ◽  
Vol 7 (2) ◽  
pp. 97-107
Author(s):  
Esust Setiawati
Keyword(s):  
Strategic Management ◽  
Product Quality ◽  
Qualitative Method ◽  
Swot Analysis ◽  
External Environment ◽  
Marketing Mix ◽  
External Factors ◽  
Customer Trust

This study aims to analyze how strategic management in the Firta Collection Boutique to develop its business, especially in providing services to customers. The method used in this research is a qualitative method that includes Marketing Mix (4P Analysis) and SWOT Analysis, to find out what external factors are opportunities or threats to the Firta Collection Boutique. The results of the study show that the strategies adopted by the Firta Collection Boutique are still inappropriate and need to use other strategies. Changes in the external environment have continued to increase so that it is an opportunity and anticipates threats by utilizing strengths and minimizing weaknesses by innovating and improving approaches and gaining customer trust in product quality, in order to compete in the fashion sector.

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