• Journal of Food Hygiene and Safety
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• v.23 no.2
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• pp.137-141
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• 2008

To evaluate safety of commercial skate product, Korean traditional ready-to-eat raw-fish, during from June to August in 2006, microbial and chemical properties such as levels of total plate count, coliform, food-borne pathogens, VBN-value, pH and ammonium concentration in ready-to-eat skate product were evaluated. Total plate counts of ready-to-eat skate product were ranges from 4.8 to 7.5 log CFU/g, and coliform was detected in 1 sample (2.48 log CFU/g) among 18 samples. Staphylococcus aureus, was detected in 2 samples among 18 samples, but Escherichia coli, Salmonella, spp., Vibrio parahaemolyticus, and Listeria monocytogenes were not detected. VBN-values and pH of skate were ranges from 12.6 to 593.9 mg% and from 6.7 to 9.4 depending on strength of fermentation, respectively. Ammonium concentrations of fermented skate were ranges from 4.4 to 14.1 mg/g and 2 samples, pre-fermented skate, were not detected.

• Journal of the Korean Society of Food Science and Nutrition
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• v.45 no.4
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• pp.602-612
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• 2016

The purposes of this study were to explore food-related lifestyle segments for commercialization of ready-to-eat Korean foods, to identify their demographic characteristics, and to evaluate perceptions and preferences related to Korean foods. The subjects consisted of 266 Koreans and 212 non-Koreans in Seoul, Gyeonggi, and Daejeon, Korea including in Grapevine of the US. Koreans' scores for food-related lifestyle of taste seeking and convenience seeking were significantly higher than those of non-Koreans. Through cluster analysis, four segments for Koreans were identified: health-oriented group, diet-oriented group, rationality-oriented group, and price-sensitive group. The clusters for non-Koreans were classified into four segments: taste-oriented group, rationality-oriented group, diet-oriented group, and convenience-oriented group. Significant differences were detected among the four segments in terms of demographic characteristics. There were significant differences in perceptions and preferences related to Korean foods by food-related lifestyle segments of non-Koreans. Japchae, Bibimbap, and Naengmyeon were selected as the most likely to purchase ready-to-eat food items for Korean clusters, whereas Bulgoggi and Bibimbap were selected for non-Korean clusters. This study shows that food companies wanting to promote commercialization of Korean foods should consider characteristics of each segment of food-related lifestyle.

• Food Science of Animal Resources
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• v.42 no.4
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• pp.557-565
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• 2022

The purpose of this research was to examine the effectiveness of pre-cooking treatments on the quality characteristics of ready-to-eat (RTE) empal gentong. Raw beef meat was pre-cooked in water bath at 90℃ for 0 min (C), 10 min (T1), 20 min (T2), and 30 min (T3) prior to retorting process at 121℃ and pressure at 70,000 Pa. Results showed that pre-cooking treatments in all treated samples could reduce fat contents in empal gentong's meat by 0.02% (T1), 0.28% (T2), and 1.13% (T3) respectively. Highest precooking time tends to increase the pH and CIE a^* values. However, CIE b^* values, water holding capacity, and sensory analysis were not affected by pre-cooking duration which must have been affected by sterilization process after pre-cooking. In conclusion, pre-cooking treatment before sterilization in producing empal gentong is a probable technique to reduce its fat content and improve its physical quality. A specific treatment at 90℃ for 10 min is recommended to achieve optimum quality of RTE empal gentong's meat.

• The Korean Journal of Food And Nutrition
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• v.30 no.1
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• pp.139-147
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• 2017

The objective of this study was to develop anti-browning agents for commercial ready-to-eat pear products, which are preferred not only to maintain the flavor, color and texture of pears, but also to increase consumers' preference. The sliced 'Shin-go (Niitaka)' pears were immersed in 5% and 10% oxidized starch, 1% citric acid, and 5% and 10% oxidized starch with addition of 0.1% sucralose for 3 minutes, and then they were packaged in vacuum sealed bags at $1^{\circ}C$ for 9 days. In order to evaluate the quality of packaged sliced pears, the quality index was determined in terms of color, firmness, soluble solids, and sensory quality. With the passage of storage time, no specific variation in firmness and soluble solids was observed. However, the ${\Delta}E$ value of the sliced pears treated with 5% oxidized starch solution was significantly lower than that of the other pears. Also, the Hunter L and b values of the sliced pears treated with 5% oxidized starch solution remained nearly constant from the beginning of storage. This observation shows that 5% oxidized starch solution was effective in reducing surface browning of sliced pears. Moreover, sliced pears treated with oxidized starch solution with addition of 0.1% sucralose were given an overall liking score which was slightly higher than that given to the other pears because of the sweetness of sucralose. In conclusion, 5% oxidized starch solution with addition of 0.1% sucralose was effective in reducing browning of sliced pears and in improving the taste of sliced pears.

• Korean journal of food and cookery science
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• v.31 no.2
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• pp.153-161
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• 2015

This study was conducted to investigate the consumption practices of ready-to-eat (RTE) foods and to analyze the microbiological hazard of kimbab, a Korean dish, and the most popular of the RTE foods eaten by participants in this study. A questionnaire was distributed to 230 university students who had previously purchased RTE foods, and 224 were collected (response rate: 97.4%). Statistical analyses were conducted on the questionnaires using the SPSS program, and a total of 135 kimbab products were sampled for aerobic plate counts, coliforms, E. coli, E. coli O157:H7, Staphylococcus aureus, Salmonella spp., and Listeria monocytogenes. The results of the analyses are as follows. Kimbab (87.0%), sandwich (86.4%), hamburger (89.8%), lunchbox (81.5%), and sushi (87.4%) were most often eaten immediately after purchasing. Additionally, the results of the microbiological hazards analysis of kimbab showed that the aerobic plate counts were significantly different according to the purchasing price (p<0.01). The coliform levels were significantly different according to the place of purchase (p<0.01) and the major ingredients of kimbab (p<0.05). In addition, Staphylococcus aureus and E. coli were detected in 5.9% and 5.2% of the tested samples, respectively. However, E. coli O157:H7, Salmonella spp., and Listeria monocytogenes were not detected in any of the samples. In conclusion, the manufacturers of RTE foods should apply the HACCP system for food safety.

• Korean Journal of Poultry Science
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• v.31 no.1
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• pp.45-54
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• 2004

The consumption of poultry meat (chicken and turkey) grew the most during the past few decades due to several contributing factors such as low price, product research and development, favorable meat characteristics, responsive to consumer needs, vertical integration and industry consolidation, new processing equipments and technology, and aggressive marketing. The major processing technologies developed and used in chicken processing include forming/restructuring, tumbling, curing, smoking, massaging, injection, marination, emulsifying, breading, battering, shredding, dicing, and individual quick freezing. These processing technologies were applied to various parts of chicken including whole carcass. Product developments using breast, thigh, and mechanically separated chicken meat greatly increased the utilization of poultry meat. Chicken breast became the symbol of healthy food, which made chicken meat as the most frequent menu items in restaurants. However, the use of and product development for dark meat, which includes thigh, drum, and chicken wings were rather limited due to comparatively high fat content in dark meat. Majority of chicken are currently sold as further processed ready-to-cook or ready-to-eat forms. Major quality issues in chicken meat include pink color problems in uncured cooked breast, lipid oxidation and off-flavor, tenderness PSE breast, and food safety. Research and development to ensure the safety and quality of raw and cooked chicken meat using new processing technologies will be the major issues in the future as they are now. Especially, the application of irradiation in raw and cooked chicken meat products will be increased dramatically within next 5 years. The market share of ready-to-eat cooked meat products will be increased. More portion controlled finished products, dark meat products, and organic and ethnic products with various packaging approaches will also be introduced.

• Proceedings of the Korean Society of Life Science Conference
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• 2001.09a
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• pp.101-101
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• 2001

• Food Quality and Culture
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• v.3 no.1
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• pp.1-5
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• 2009

The objective of this study was to develop a reliable and reproducible descriptive analysis procedure for Korean style sweet pumpkin gruel (Hobakjuk). The sensory attributes of the sweet pumpkin gruel were developed and defined, the sample preparation method was standardized, and the sensory evaluation procedure for a sample was established. Seven types of sweet pumpkin gruel (five ready-to-eat type vs. two ready-to-heat type) were selected to be analyzed. Panel training and descriptive analysis were carried out with these 7 samples. A total of 12 sensory attributes (2 aroma/odor, 5 taste/flavor, 4 texture/mouthfeel, and 1 aftertaste attributes) were developed to describe the sensory characteristics of the sweet pumpkin gruel. The definition and reference standards for each sensory attribute were determined to clearly understand each attribute. In the main experiment, trained panelists evaluated the sensory characteristics of the 7 gruel samples based on a fifteen-point intensity scale using the developed attributes. The results were statistically analyzed by analysis of variance, principal component analysis, and cluster analysis. The results showed that the 7 sweet pumpkin gruel samples significantly differed in their intensities of all attributes except for sweet pumpkin aroma and viscosity. The ready-to-eat style samples were distinctly characterized by their sweet pumpkin aroma and flavor, whereas the ready-to-heat style samples were markedly characterized by their low intensity of gelatinized starch and pumpkin flavor retention.

• Journal of the Korean Dietetic Association
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• v.10 no.4
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• pp.381-389
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• 2004

The purpose of this study was to investigate effectiveness of sanitization on raw vegetables not heated in foodservice operations. Microbiological examinations of food materials and cooked food with leek Gukgalli were performed in 2 HACCP-implemented foodservices (A and B) appointed by Food and Drug Administrations, and in 2 other foodservices (C and D) not implemented HACCP. 'Washing and sanitizing raw vegetables' were monitored as CCP at A and B foodservices but only washing has been done in pre-preparation at C and D foodservices. Aerobic plate counts of received leek in A and B foodservices were above $10^7$ CFU/g indicating very poor microbiological quality. After sanitization treatment (soaking for 5 minutes in chlorine water: chlorine density 50〜100 ppm), its aerobic plate counts decreased to 7.06×$10^5$ CFU/g (A foodservice) and 4.31×$10^5$ CFU/g (B foodservice), coliform and faecal coliform were not detected. With this result, the effect of microbial reduction by sanitizer was conformed. But, the conditions of leek were still not acceptable by microbiological standards for ready-to-eat foods. After three more times of rinse has been done, the microbial conditions of leek became acceptable. In C and D foodservices, aerobic plate counts of leek showed decreasing trends by 2〜4 times of washings but microbiological quality of leek after pre-preparation were unacceptable by microbiological standards for ready-to-eat foods (C foodservice: 3.58×$10^5$ CFU/g, D foodservice: 1.29×$10^9$ CFU/g). For the prevention of foodborne illness, sanitizing raw vegetables should be performed during pre-preparation of non-heated foods.

• Journal of the Korean Society of Food Culture
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• v.22 no.1
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• pp.43-57
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• 2007

This study was designed to identify the actual state of ready-to-eat street-foods usage in a college-town in northern part of seoul. For the empirical study, data was collected from customers who had eaten street-foods and a survey was conducted from 16 to 30, May 2006. The results showed that many respondents had irregular eating habits. More than 60% of them responded they usually skipped breakfast and the reason was no time. It was shown that they have had Frequent snacks and unbalanced diet. The results of survey are as follows ; 1. The major time for street-foods usage: p.m 3-5 (28.77%). 2. The frequency of street-foods usage: 1-2 times/week (43.85%). 3. The street-foods usage days of the week: weekday (52.79%). 4. The mean cost for the onetime purchase of street-foods usage: 1000-3000won (71.79%). 5. The monthly cost for the purchase of street-foods usage: below 50000won (81.84%). 6. The reason for street-foods usage: mainly convenience (60.61%). 7. The reason for minding street-foods : mainly insanitary (40.50)%. 8. Factors considered when choosing street-foods: tastes of the foods (65.08%). Also, it was shown that over 50% of respondents have considered the street-foods as the worth of meal replacement, and taken effective factor on eating habits for influx of new culture. It was indicated that problems of street-foods usage was the unbalanced nutrition for 81.8% of respondents and suggestions for improving the street-foods were sanitary controls for products for 63.4% of respondents.