• 축산식품과학과 산업
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• v.2 no.3
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• pp.2-7
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• 2013

• 축산식품과학과 산업
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• v.8 no.2
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• pp.27-34
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• 2019

• Food Science of Animal Resources
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• v.43 no.1
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• pp.195-195
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• 2023

• Food Science and Industry
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• v.53 no.2
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• pp.148-165
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• 2020

At beginning the fermentation is naturally occurred by natural microbes. Fermentation techniques apply as two ways, one is fermentation to produce fermented foods and the other is preservation of the foods for longer time for future. They contain various biological active ingredient, like as vitamins. Microorganisms concerning fermentation are well known the functionalities. Each nations in the world have unique and distinct foods and dietary habits on their own specific cultures and accessible edible raw resources of plant or animal origins. Many countries have their unique traditional fermented foods based on their natural conditions. Korea has very famous traditional fermented foods, as Kimchi, fermented soybean products(Jang), fermented fish products(Jeotgal) and vinegar. In this review will discuss the overall fermented foods and typical Korean traditional fermented foods with functionalities, and future effort to enlarge into wide range of new industry.

• Food Science and Biotechnology
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• v.14 no.4
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• pp.523-528
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• 2005

The commercial interests in functional foods containing probiotics are gaining significance in view of increasing studies on their role in digestive tract. Probiotic dairy foods containing health-promoting bacteria are important segment of functional food market. Various health benefits have been attributed to specific strains of lactic acid bacteria or food containing these probiotic cultures. Probiotic-containing foods are considered to improve general gut health and natural defenses of body, and lower blood cholesterol level. Specific probiotic microbes can alleviate or prevent diverse intestinal diarrhea-inducing disorders, cause prophylaxis of intestinal and urogenital infections, inhibit mutagenicity of intestinal contents, and reduce incidence of intestinal tumors. Recent increasing evidences on health effects of probiotics have triggered consumer interest in this category of functional foods. Rational approach needs to be applied in selection of strains for probiotic preparation to achieve required functionality. Present article focuses on some prominent probiotic candidates and criteria for their inclusion in functional food sector. Various health claims of probiotics on gastrointestinal disorders, anticarcinogenic effects, and anti-cholestrimic effects, and possible mechanistic explanations for their functionality are highlighted.

• The Korean Journal of Food And Nutrition
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• v.17 no.3
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• pp.302-312
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• 2004

This study aimed at examine dietary attitude, eating behavior and food preferences of children in child care center. The children involved in this study were 153 boys and 134 girls, aged 3 to 6 years old. The eating frequency of breakfast and the number of meal times a day were significant difference according to sex(P<0.01). Reason for skipping breakfast was ‘no appetite’(49.3%). It was found that 51.5% of the children belonged to ‘fair’ in food habit score, while children in ‘poor’ and in ‘excellent’ were 25.0% and 9.7% respectively. There was no significant difference in food habit score between boys and girls. Their preferred staple foods were ‘cooked rice’ and ‘Chajangmyon’, their preferred soup was ‘seaweed soup’. Also, their most preferred side dishes with animal foods were ‘fried chicken’ and ‘Bulgogi’. The preference of ‘hard boiled soybean curd’ and ‘pan fried soybean curd’ among the side dishes with vegetable foods were significant according to the obesity index(P<0.05). Children preferred side dishes with animal foods to those with vegetable foods. First considered item in meal preparation was child's favorite(58.1%). Mother's response to child's unbalanced diet was ‘trying to persuade the child’(56.6%). It was significant according to mother's occupation(P<0.01). The nutritional management program at child care center is required to enhance the nutritional status of children. Also the nutritional education for the children and their meal planners is required for better growth and health promotion of preschool children.

• Journal of Biosystems Engineering
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• v.40 no.3
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• pp.261-270
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• 2015

Purpose: Cold storage is the most popular method used to preserve highly perishable foods such as beef and fish. However, at refrigeration temperatures, the shelf life of these foods is limited, and spoilage leads to massive food waste. Moreover, freezing significantly affects the food's properties. Ice crystallization and growth during freezing can cause irreversible textural damage to foods through volumetric expansion, moisture migration induced by osmotic pressure gradients, and concentration of solutes,which can lead to protein denaturation. Methods: Although freezing can preserve perishable foods for months, these disruptive changes decrease the consumer's perception of the food's quality. Therefore, the development and testing of new and improved cold storage technologies is a worthwhile pursuit. Results: The process of maintaining a food product in an unfrozen state below its equilibrium freezing temperature is known as supercooling. As supercooling has been shown to offer a considerable improvement over refrigeration for extending a perishable product's shelf life, implementation of supercooling in households and commercial refrigeration units would help diminish food waste. Conclusions: A commercially viable supercooling unit for all perishable food items is currently being developed and fabricated. Buildup of this technology will provide a meaningful improvement in the cold storage of perishable foods, and will have a significant impact on the refrigeration market as a whole.

• Food Science of Animal Resources
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• v.25 no.1
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• pp.60-65
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• 2005

Antioxidant films are one active packaging technology that can extend food shelf-life through preventing lipid oxidation, stabilizing color, maintaining sensory properties and delaying microbial growth in foods. Because raw, fresh and minimal processed foods are more perishable during storage or under display conditions than further processed foods, they rapidly lose their original quality. Foods are susceptible to physical, chemical, and biochemical hazards to which packaging films can be effective barriers. Although films incorporated natural (tocopherols, flavonoids and phenolic acids) or synthetic antioxidants (BHT, BHA, TBHQ, propyl gallate) have been extensively tested to improve quality and safety of various foods, food applications require addressing issues such as physical properties, chemical action, cost, and legal approval. Increased interest in natural antioxidants as substitutes for synthetic antioxidants has triggered research on use of the new natural antioxidants in films and coatings. Use of new components (phytochemicals) as film additives can improve food quality and human health. The biosynthesis of plant phenolics can potentially be optimized by active coatings on harvested fruits and vegetables. These coatings can trigger the plants natural proline-linked pentose phosphate pathway to increase the phenolic contents and maintain overall plant tissue quality. This alternate metabolic pathway has been proposed by Dr. K. Shetty and is supported by numerous studies. A new generation of active food films will not only preserve the food, but increase food's nutritional quality by optimizing raw food biochemical production of phytochemicals.

• Food Science of Animal Resources
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• v.40 no.5
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• pp.734-745
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• 2020

Commercially sterilized ultra high temperature (UHT) milk was manufactured at different homogenization pressures (20, 25, and 30 MPa), and changes in fat particle size, mechanical stress-induced fat aggregation, plasmin activity, and lipid oxidation were monitored during ambient storage of the UHT milk for up to 16 wk. The particle sizes of milk fat globules were significantly decreased as homogenization pressure increased from 20 to 30 MPa (p<0.05). The presence of mechanical stress-induced fat aggregates in milk produced at 20 MPa was significantly higher than for UHT milk produced at either 25 or 30 MPa. This difference was maintained all throughout the storage. There were no significant differences in plasmin activity, trichloroacetic acid (12%, w/v) soluble peptides, and the extent of lipid oxidation. Based on these results, an increase of homogenization pressure from 20 (the typical homogenization pressure employed in the Korea dairy industry) to 25-30 MPa significantly decreased mechanical stress-induced fat aggregation without affecting susceptibility to lipid oxidation during storage.

• Journal of Dairy Science and Biotechnology
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• v.33 no.1
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• pp.59-67
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• 2015

Enterohemorrhagic Escherichia coli (EHEC) O157:H7 is well-characterized as an important food-borne pathogen worldwide and causes human diseases such as diarrhea, hemorrhagic colitis, and hemolytic uremic syndrome (HUS) by producing shiga-like toxin (Stx). It has been reported that a number of dairy foods, including cheese, can act as the source of EHEC O157:H7 infections. In addition to the toxicity of Stx, recently it has been indicated that EHEC O157:H7 possesses virulence factors related to attachment, quorum sensing, and biofilms. Moreover, these novel virulence factors might become critical points to be considered in the future production of food derived from animals. Here, we review the evidences that support these insights on new virulence factors and discuss the potential mechanisms mediating the pathogenesis of EHEC O157:H7 in the dairy food industry.