scholarly journals An Overview of Nanotechnology in Food Science: Preparative Methods, Practical Applications, and Safety

2018 ◽  
Vol 2018 ◽  
pp. 1-10 ◽  
Author(s):  
Hyunjong Yu ◽  
Jun-Young Park ◽  
Chang Woo Kwon ◽  
Sung-Chul Hong ◽  
Kyung-Min Park ◽  
...  
Keyword(s):  
Bioactive Compounds ◽  
Targeted Delivery ◽  
Food Industry ◽  
Food Contamination ◽  
Food Science ◽  
Practical Applications ◽  
Safety Issues ◽  
Comprehensive Information ◽  
Processing And Storage

As the researches to utilize nanotechnology in food science are advanced, applications of nanotechnology in various fields of the food industry have increased. Nanotechnology can be applied to the food industry for production, processing, storage, and quality control of foods. Nanomaterials, unlike conventional microscale materials, having novel characteristics can improve sensory quality of foods by imparting novel texture, color, and appearance. Nanotechnology has been used to design nanosensors for detection of harmful components in foods and a smart packaging system enabling to recognize food contamination very rapidly and sensitively. Nanoencapsulation is the most significant technology in food science, especially for bioactive compounds and flavors. Targeted delivery systems designed with nanoencapsulation can enhance bioavailability of bioactive compounds after oral administration. In addition, nanoencapsulation enables to control the release of flavors at the desired time and to protect the degradation of flavors during processing and storage. In this review, current applications of nanotechnology in food science including flavor control, enhancement of bioavailability of bioactive compounds, and detection of deleterious substances in foods are presented. Furthermore, this article overviews classification, preparative methods, and safety issues of nanomaterials for food science. This review will be of help to provide comprehensive information for newcomers utilizing nanotechnology to the food sector.

scholarly journals An Investigation of Moroccan Vinegars: Their Physicochemical Properties and Antioxidant and Antibacterial Activities

2021 ◽  
Vol 2021 ◽  
pp. 1-8
Author(s):  
Driss Ousaaid ◽  
Hamada Imtara ◽  
Hassan Laaroussi ◽  
Badiaa Lyoussi ◽  
Ilham Elarabi
Keyword(s):  
Physicochemical Properties ◽  
Bioactive Compounds ◽  
Antibacterial Activities ◽  
Storage Conditions ◽  
Production Methods ◽  
Maximum Value ◽  
Processing And Storage ◽  
And Storage ◽  
Excellent Source

Vinegar is a natural product rich in bioactive compounds such as phenols, flavonoids, and organic acids. Several factors affect the quality of vinegars such as apple origin, environmental conditions, production methods, processing, and storage conditions. We investigated the quality of apple vinegars as well as their physicochemical properties and the antioxidant and antibacterial activities of vinegars collected from different areas in Morocco. For physicochemical properties, the outcomes showed the following values: pH (3.18–3.83), electrical conductivity (2.11–2.90), acidity (0.24–5.6), Brix (3.25–6), and density (1.0123–1.0233). The polyphenols content of samples was 68.91 mg AG/100 mL in sample S6 as the minimum value and 147.54 mg AG/100 mL in sample S2 as the maximum value. The best ability to scavenge the DPPH radical was observed in sample S3 (IC50 = 0.45 ± 0.013 µL/mL). Sample S2 showed moderate antibacterial effect against microorganisms tested with MICs ranging from 0.78 µL/mL to 1.125 µL/mL and with a diameter of inhibition ranging from 15.65 mm to 27.65 mm. In addition, a strong correlation was observed between the antibacterial activity of vinegars and physicochemical parameters (pH and total acidity). These outcomes have shown that our vinegar samples are an excellent source of bioactive compounds with potent antioxidant and antibacterial potentials.

scholarly journals Natural Antioxidants from Seeds and Their Application in Meat Products

Antioxidants ◽  
2020 ◽  
Vol 9 (9) ◽  
pp. 815 ◽  
Author(s):  
Paulo E. S. Munekata ◽  
Beatriz Gullón ◽  
Mirian Pateiro ◽  
Igor Tomasevic ◽  
Ruben Domínguez ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Food Industry ◽  
Meat Products ◽  
Natural Antioxidants ◽  
Synthetic Antioxidants ◽  
Oxidative Reactions ◽  
Health Related ◽  
Processing And Storage ◽  
And Storage

The use of synthetic antioxidants in the food industry has raised important questions about the effects of prolonged consumption on human health. On top of that, the consumption of meat products has been changing due to the awareness generated by health-related organizations. In this sense, exploring strategies to develop and produce healthier meat products has become a paramount concern. Several studies explored the composition of several seeds to characterize and explore the compounds with antioxidant activity, which are mainly composed of polyphenols. The use of antioxidant extracts in meat products has shown important results to delay the oxidative reactions in meat products derived from the processing and storage of meat products. Moreover, these extracts can also replace synthetic antioxidants and preserve the quality of meat products. Therefore, the aims of this review are first, to present the sources and compounds with antioxidant activity in seeds, and second, to discuss their protective effect against oxidative reactions in meat products.

scholarly journals Efficacy of Biopolymer/Starch Based Antimicrobial Packaging for Chicken Breast Fillets

Foods ◽  
2021 ◽  
Vol 10 (10) ◽  
pp. 2379
Author(s):  
Noor L. Yusof ◽  
Noor-Azira Abdul Mutalib ◽  
U. K. Nazatul ◽  
A. H. Nadrah ◽  
Nurain Aziman ◽  
...  
Keyword(s):  
Food Industry ◽  
Food Packaging ◽  
Food Contamination ◽  
Color Variation ◽  
Chicken Breast ◽  
Antimicrobial Packaging ◽  
Hardening Process ◽  
Polybutylene Succinate ◽  
Potential Use

Food contamination leading to the spoilage and growth of undesirable bacteria, which can occur at any stage along the food chain, is a significant problem in the food industry. In the present work, biopolymer polybutylene succinate (PBS) and polybutylene succinate/tapioca starch (PBS/TPS) films incorporating Biomaster-silver (BM) and SANAFOR® (SAN) were prepared and tested as food packaging to improve the lifespan of fresh chicken breast fillets when kept in a chiller for seven days. The incorporation of BM and SAN into both films demonstrated antimicrobial activity and could prolong the storability of chicken breast fillets until day 7. However, PBS + SAN 2%, PBS/TPS + SAN 1%, and PBS/TPS + SAN 2% films showed the lowest microbial log growth. In quality assessment, incorporation of BM and SAN into both film types enhanced the quality of the chicken breast fillets. However, PBS + SAN 1% film showed the most notable enhancement of chicken breast fillet quality, as it minimized color variation, slowed pH increment, decreased weight loss, and decelerated the hardening process of the chicken breast fillets. Therefore, we suggest that the PBS + SAN and PBS/TPS + SAN films produced in this work have potential use as antimicrobial packaging in the future.

scholarly journals Critical Food Safety Issues Facing the Food Industry: A Delphi Analysis

2020 ◽  
Author(s):  
Kevan W Lamm ◽  
Nekeisha L. Randall ◽  
Francisco Diez-Gonzalez
Keyword(s):  
Environmental Policy ◽  
Food Safety ◽  
Research Methods ◽  
Comparative Research ◽  
Food Industry ◽  
Food Contamination ◽  
Safety Issues ◽  
Critical Issues ◽  
To Receive ◽  
Delphi Analysis

The topic of food safety continues to receive increased attention and has ramifications on various human, environmental, policy, and economic levels worldwide. By garnering feedback from 30 food industry experts, this study was undertaken to identify the most critical issues facing the food industry in relation to food safety. According to expert opinion and after three rounds of Delphi inquiry, food contamination detection, outbreaks, and prevention along with governmental oversight, education for and communication with consumers and employees, and globalization were identified as the main areas at the forefront of food safety. Delphi and constant comparative research methods are explained and suggestions on how to make meaning from the results to progress in this area are discussed.

Spore-forming bacteria and their utilisation as probiotics

2012 ◽  
Vol 3 (1) ◽  
pp. 67-75 ◽  
Author(s):  
J. Bader ◽  
A. Albin ◽  
U. Stahl
Keyword(s):  
Lactic Acid ◽  
Food Industry ◽  
Food Product ◽  
Review Article ◽  
Bacterial Spores ◽  
Scientific Results ◽  
Processing And Storage ◽  
And Storage ◽  
Spore Forming Bacteria

In this review article, the beneficial application of bacterial spore formers as probiotics in the food industry is discussed based on the knowledge gleaned from current publications. The summary of new scientific results provides evidence of the advantages of the utilisation of Bacillus or Clostridium strains in the food industry. Both bacteria are able to produce a very stable duration form: the endospore. Compared to the widely used lactic acid bacteria, bacterial spores offer the advantage of a higher survival rate during the acidic stomach passage and better stability during the processing and storage of the food product. In many food products, germination of the spores does not occur. Hence the product quality of the food is not affected because of their inactive metabolism. Besides the possible utilisation and functional properties, an overview of the fast-developing knowledge about the mechanisms of the beneficial health effects of spore-forming bacteria is provided.

scholarly journals Nanoparticles as Novel Elicitors to Improve Bioactive Compounds in Plants

Agriculture ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 134
Author(s):  
Samantha de Jesus Rivero-Montejo ◽  
Marcela Vargas-Hernandez ◽  
Irineo Torres-Pacheco
Keyword(s):  
Bioactive Compounds ◽  
Nutritional Quality ◽  
Crop Production ◽  
Food Industry ◽  
Plant Metabolites ◽  
Potential Applications ◽  
Agriculture And Food

Bioactive compounds (e.g., flavonoids, phenolics acids, alkaloids and carotenoids) are commercially-valued products, due to their wide array of applications in the medical, pharmacological, cosmetic, agriculture and food industry. A strategy applied to increase or enhancing bioactive compounds production in plants is controlled elicitation. In recent years, many researchers have studied the role of nanoparticles (NPs) as a novel elicitor for the biosynthesis of bioactive compounds shown that the NPs could affect the plant’s secondary metabolism in plant and culture systems. In this sense, recent studies have highlighted the potential applications of nanotechnology in crop production by improving the nutraceutical and nutritional quality of plants. In this review, we present studies about the application of NPs to enhance the production of bioactive plant metabolites. The aforementioned studies in ex vitro as in vitro, in addition to the effect of post-harvest by NPs application.

scholarly journals Potential Use of Elderberry (Sambucus nigra L.) as Natural Colorant and Antioxidant in the Food Industry. A Review

Foods ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 2713
Author(s):  
Rubén Domínguez ◽  
Mirian Pateiro ◽  
Paulo E. S. Munekata ◽  
Eva María Santos López ◽  
José Antonio Rodríguez ◽  
...  
Keyword(s):  
Bioactive Compounds ◽  
Food Industry ◽  
Sensory Quality ◽  
Functional Foods ◽  
Sambucus Nigra ◽  
Natural Sources ◽  
Natural Colorant ◽  
Positive Effect ◽  
Potential Use

The food industry, in response to current consumer demand for natural and functional foods, is constantly evolving and reformulating traditional products formulations. Thus, during the last decades, multiple natural sources have been investigated to replace the need to add synthetic additives. In addition, the use of natural sources can also increase the nutritional quality of the food. With this in mind, elderberry is used in the food industry for certain purposes. However, its potential is much higher than the number of applications it currently has. Its high content of anthocyanins, as well as other polyphenols and vitamins, means that it can be used by the food industry both as a colorant and as an antioxidant. In addition, the incorporation of these bioactive compounds results in functional foods, with a high antioxidant capacity. Moreover, the inclusion of elderberry products in foods formulation increases their shelf-life, but the correct amount and strategy for adding elderberry to food should be studied to ensure a positive effect on nutritional and technological properties without affecting (or improving) the sensory quality of foods. Therefore, this manuscript aims to review the main bioactive compounds present in elderberries, as well as their potential uses in the food industry.

Microbiological quality of commonly consumed street foods in Bangladesh

2016 ◽  
Vol 46 (1) ◽  
pp. 130-141 ◽  
Author(s):  
Rashed Noor
Keyword(s):  
Disease Onset ◽  
Microbiological Quality ◽  
Food Contamination ◽  
Microbiological Analysis ◽  
Content Type ◽  
Consumer Safety ◽  
Comprehensive Information ◽  
Microbial Infections ◽  
Microbiological Aspects

Purpose – The purpose of this review is to narrate the microbiological quality of variety of street foods which are largely consumed by the Bangladeshi people of all ages. However, these foods are prone to microbial contamination. Most of the vendors lack the awareness on hygiene during preparing, processing or handling the foods. The insufficiency in regular microbiological analysis further casts the possibility of disease onset. The need of microbial analyses of these foods also remains unclear to the consumers, which, in turn, results in microbial infections and intoxications remaining unnoticed. Design/methodology/approach – The present review focused on the microbiological quality of the street foods projected from the locally conducted researches on street foods, and pondered on the possible management from a microbiological perspective for ensuring consumer safety. Findings – This paper provides comprehensive information on the microbiological quality of street foods, requirement of maintenance of hygiene by the vendors and consumers and the necessity of adopting proper management during food preparation. Originality/value – Demonstration of microbial prevalence in the street foods may bring imperative information on food safety and security. The conclusive message of this review is about the general consciousness on the microbiological aspects of street food contamination.

Where’s the fat? Freeze-fracture analysis of ingredient interactions in food systems

1993 ◽  
Vol 51 ◽  
pp. 48-49
Author(s):  
Jean Fincher
Keyword(s):  
Lipid Droplets ◽  
Food Systems ◽  
Food Industry ◽  
Freeze Fracture ◽  
Food Science ◽  
Complex Interactions ◽  
Fat Reduction ◽  
Important Trend ◽  
Conventional Foods ◽  
Whipped Cream

An important trend in the food industry today is reduction in the amount of fat in manufactured foods. Often fat reduction is accomplished by replacing part of the natural fat with carbohydrates which serve to bind water and increase viscosity. It is in understanding the roles of these two major components of food, fats and carbohydrates, that freeze-fracture is so important. It is well known that conventional fixation procedures are inadequate for many food products, in particular, foods with carbohydrates as a predominant structural feature. For some food science applications the advantages of freeze-fracture preparation procedures include not only the avoidance of chemical fixatives, but also the opportunity to control the temperature of the sample just prior to rapid freezing.In conventional foods freeze-fracture has been used most successfully in analysis of milk and milk products. Milk gels depend on interactions between lipid droplets and proteins. Whipped emulsions, either whipped cream or ice cream, involve complex interactions between lipid, protein, air cell surfaces, and added emulsifiers.

Pharmaceutical quality of yarrow (Achillea millefolium L. s.l.) – Investigation of 40 commercial drug samples by means of the bioactive compounds

Planta Medica ◽  
2007 ◽  
Vol 73 (09) ◽  
Author(s):  
B Benedek ◽  
K Rothwangl-Wiltschnigg ◽  
E Rozema ◽  
N Gjoncaj ◽  
G Reznicek ◽  
...  
Keyword(s):  
Bioactive Compounds ◽  
Achillea Millefolium ◽  
Pharmaceutical Quality
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