• Food Science of Animal Resources
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• v.39 no.5
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• pp.756-767
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• 2019

This study aimed to evaluate the effect of doneness on the microbial, nutritional, and quality characteristics of 1.5 cm- and 2.0 cm-thick pork neck steaks. Pork neck meat was obtained within 24 h after slaughtering, cut into 1.5 cm- and 2.0 cm-thick slices (n=5), packed in LLD-PE wrap, and stored at $4{\pm}2^{\circ}C$ for 7-10 days until aerobic plate counts (APC) reach 5.51-6.50 Log CFU/g. Then, the pork meat was cooked on a frying pan till it was medium-rare, medium, or well-done. The microbial inhibition rates of the 1.5 cm- and 2.0 cm-thick steak in medium-rare state were 58.26% and 51.70%, respectively, whereas it was 100% for medium-done pork steak of either thickness. The total calories of the 1.5 cm- and 2.0 cm-thick well-done pork steaks were 643.61 kcal/100 g and 675.00 kcal/100 g, respectively, which was higher than that in medium-rare and medium-done steaks. The retention ratios for Fe and K in the well-done steak were significantly lower than those in the medium and medium-rare steak of either thickness (p<0.05). The shear force of the medium-rare and medium steak did not differ, whereas that of the well-done steak was significantly higher than that of the medium-rare steak of either thickness (p<0.05). We observed that the well-done pork steak had tough texture, low mineral content, and high calories. Therefore, consumption of medium and medium-rare pork is more beneficial than that of well-done pork.

• Korean Journal of Community Nutrition
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• v.11 no.5
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• pp.642-649
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• 2006

The purposes of this study were to investigate methods of applying activity-based cost to menu engineering and to examine the feasibility. A total of 6 menu items of XYZ restaurant in Seoul were selected and the ledger of September 2005 was used for menu analysis. The menu mix percent of beef sirloin steak (61.95%) and beef tenderloin steak (17.13%) were labeled as high, whereas BBQ pork ribs (4.94%), salmon fillet (2.66%), seafood platter (5.77%), and teriyaki chicken (7.56%) showed low menu mix percent. In addition, the contribution margin for BBQ pork ribs (29,000 won), salmon fillet (25,810 won), seafood platter (22,400 won), and teriyaki chicken (22,000 won) were higher than the average contribution margin (21,957 won), and those for beef sirloin steak (21,200 won) and beef tenderloin steak (21,900 won) were lower than average. When popularity and contribution margin were applied in menu engineering, BBQ pork ribs, salmon fillet, seafood platter and teriyaki chicken were classified as puzzles and beef tenderloin steak and beef sirloin steak as plowhorses. Menu engineering using popularity and operating profit, which was calculated from activity-based cost, also gave the same results, whereas the additional label for activity cost placed BBQ pork ribs and salmon fillet in the brain teaser category. Ranking analysis on variables estimating menu profitability using Spear-man's ${\rho}$ revealed that there were no significant correlation between variables, which means the estimation of menu item profitability could differ by methods of analysis. With these results, it was concluded that activity-based cost would help to establish more detailed marketing strategy for a restaurant.

• Korean Journal of Fisheries and Aquatic Sciences
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• v.48 no.6
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• pp.849-856
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• 2015

This study was performed to obtain basic data regarding the development of fish steak products using olive flounder and pork leg. Olive flounder and pork leg were ground separately in a chopper. The methods used for processing were as follows. Chopped olive flounder (100 g) and other ingredients (bread crumbs, 13 g; onion, 12 g; garlic, 4 g; egg wash, 18 g; salt, 0.05 g; pepper, 0.05 g) were mixed in a chopper. The mixture was molded into a steak shape ($12{\times}7cm$) and roasted in an oven at $180^{\circ}C$ for 12 min (OF). FP consisting of a mixture of olive flounder (70 g) and pork leg meat (30 g) and OP consisting of pork leg meat alone (100 g) were processed according to the same procedure as described for OF. Various factors (viable bacterial count, chemical composition, pH, salinity, hardness value, color value, total amino acid content, free amino acid content, fatty acid composition, mineral content) were measured, and sensory evaluation was conducted. Based on the results of the sensory evaluation and hardness value, OP was deemed to be the most desirable, followed in order by FP and OF. There was a slight but significant difference between OP and FP.

• Korean journal of food and cookery science
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• v.21 no.4 s.88
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• pp.536-544
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• 2005

In the results of sensory evaluation, beef steak was preferred with the highest overall acceptability while lamb steak was less preferred than pork in flavor and overall acceptability. Sensory tests were conducted to examine whether taste, aroma, or texture is the dominant contributor to people's ability to identify the animal species of meat. The meat samples used were beef, pork, and lamb. Panelists wearing eye masks ate cooked pieces, patties, and heated soups prepared from the meats of these 3 species with and without pinching their noses to regulate the aroma sensation. The results led us to the conclusion that aroma is the most important contributor to the identification of lamb meat, with texture being the 2nd most important contributor. The contribution of taste appeared much smaller than that of aroma and texture. A sensory evaluation of lamb steaks with added herbs or herbal vegetables showed that steak with ginger and rosemary was preferred as having the significantly highest overall acceptability. It was also more preferred au 3 kinds of steak with added garlic and mint, garlic and rosemary, and ginger and mint in appearance, taste and flavor, although there was no significant difference. In difference test, odor was least noticeable in lamb steak when ginger and rosemary were added. Its taste gained the highest preference level, although the difference was not significant. A sensory evaluation that measured the effect of herbs and herbal vegetables on lamb steaks showed that steak with ginger and rosemary had the significantly highest overall acceptability. The second most preferred was beef steak, which had most significantly preferred in taste, and which ranked lower than lamb in flavor with no significant differences. The difference test showed lamb steak with ginger and rosemary scored the least odor and the highest level of palatability.

• Food Science of Animal Resources
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• v.26 no.4
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• pp.471-477
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• 2006

This study was conducted to evaluate the application of high dose irradiation for ensuring shelf stability of marinated and precooked pork rib steak in the severe environments such as desert or space, etc. Marinated and precooked pork rib steak was manufactured, vacuum-packaged and gamma-irradiated with the absorbed doses of 10, 20, 30, 40 and 50 kGy, and used for the tests of the growth of microorganisms and lipid oxidation during storage at 35t of acceleration condition. Any growth of microorganisms was not observed in irradiated samples after irradiation immediately. However, the growths were observed in 10, 20 and 30 kGy samples at 4, 7 and 14 day storage, respectively. High dose (40 and 50 kGy) gamma irradiation retarded the growth of aerobic microorganisms by the analysis of kinetic parameter. The content of malondialdehyde increased in all samples during storage periods, and gamma irradiation accelerated the increase of lipid oxidation. Therefore, the application of combination of the various food processing technology should be considered for the sterilization of marinated and precooked pork rib steak without any deterioration of the quality occurred by high dose irradiation.

• Korean journal of food and cookery science
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• v.13 no.3
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• pp.338-347
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• 1997

The acceptance and dining behavior of Taegu residents for western foods were surveyed through the questionnaire to provide basic information for the diet improvement. The results were as follows: 1. The preliminary test showed that 19 western foods had high preference among them in the order of ice cream, fried chicken, fried potato, coffee, salad, pizza, soup, pork cutlet, hamburger sandwich, hamburger steak, potato croquette, curry rice, omelet rice, beef steak, spaghetti, com flakes, hashed rice, and omelet. Although a diversity was observed depending upon the age groups, the persons in their thirties generally had high preference on most western foods. 2. The recognition types of housewives to the western food were grouped into the merits of meal, disadvantages of meal, nutritive values, and cooking convenience. In order to have western food, 54.5% of the respondents went to restaurants, mainly family restaurant, however, the level of frequency was very low.

• Asian-Australasian Journal of Animal Sciences
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• v.27 no.10
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• pp.1487-1492
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• 2014

This research applied and evaluated a polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) using cytochrome b gene to detect pork contamination in meatballs from local markets in Surabaya and Yogyakarta regions, Indonesia. To confirm the effectiveness and specificity of this fragment, thirty nine DNA samples from different meatball shops were isolated and amplified, and then the PCR amplicon was digested by BseDI restriction enzyme to detect the presence of pork in meatballs. BseDI restriction enzyme was able to cleave porcine cytochrome b gene into two fragments (131 bp and 228 bp). Testing the meatballs from the local market showed that nine of twenty meatball shops in Yogyakarta region were detected to have pork contamination, but there was no pork contamination in meatball shops in Surabaya region. In conclusion, specific PCR amplification of cytochrome b gen and cleaved by BseDI restriction enzymes seems to be a powerful technique for the identification of pork presence in meatball because of its simplicity, specificity and sensitivity. Furthermore, pork contamination intended for commercial products of sausage, nugget, steak and meat burger can be checked. The procedure is also much cheaper than other methods based on PCR, immunodiffusion and other techniques that need expensive equipment.

• Journal of the Korean Society of Food Culture
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• v.37 no.3
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• pp.213-238
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• 2022

This study aims to investigate protein consumption market trends in Korea. Protein consumption was divided according to the protein source into meat, fishery, and plant-based protein. To accomplish the goal of this study, food purchase data from 525 households panels collected by the Rural Development Administration over the last 10 years were used. The results of the study showed an increase or decrease in protein consumption by protein type over the last 10 years, and a reason to explain this change has been suggested. Specifically, this study found a dramatic increase in the consumption of several proteins, including beef sirloin, beef tenderloin, seasoned beef & steak, pork belly, pork shoulder, pork neck, seasoned pork, pork cutlet, sweet and sour pork, canned ham, chicken drumstick, chicken breast, dak gangjeong, Chinese fried chili chicken, salmon, eel, abalone, squid, octopus, webfoot octopus, octopus minor, canned whelk, tofu, cold bean soup,and plant-based milk. Some items showed no increase in consumption (such as beef jerky, pork rib, sausage, bacon, whole raw chicken, cutlass fish, oyster, fish cake, crab stick, surimi sausage,and canned fishery), whereas a few items showed decreased consumption (e.g., mackerel, pollack, cod,and canned tuna)

• Journal of Nutrition and Health
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• v.35 no.9
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• pp.996-1006
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• 2002

A total of 321 salaried employees were surveyed by questionnaires during September and October 2001 in order to investigate the bases for their choices between 26 popular menu items in JinJu restaurants. The subjects were aged 20 to 61 years, and were classified into 3 age groups (ages 20-29, 30-39, and over 40) and 2 gender groups. The data were analyzed using the SAS program for factor analysis. The results of this study were as follows: 1) The 26 popular menu items were classified into 6 factors by the 20-29 age group, into 5 factors by the 30-39 age group, and into 3 factors by the over 40 age group. The younger age group had the more numbers of factor which act as choice criteria of restaurant foods according to the purpose of eating out. 2) Because subjects classified steak and fast food into the same factor named 'new generation's food', we found that steak was an unfamiliar food for most of them, 3) The 20-29 age group had an aversion to Boshintang(dog soup), while the 30-39 age group and the over 40 age group liked Boshintang as a stamina food. 4) The over 40 age group, and men in all age groups, didn't choose Buffet and Shabushabu as a dinner food because they had negative attitudes toward novel or unfamiliar foods. 5) Women distinguished between a factor called 'social drink and party food' from a facor called 'dinner food', while men integrated the factor of 'dinner food' into the factor of 'social drink and party food' 6) Men preferred Samgyetang (chicken stew with ginseng) and Yangnyeumtongdak (spicy fried chicken) as a 'social drink and party food', while women preferred Dwaejibossam (boiled pork and kimchi) and Beef Bulgogi. In conclusion, most of subjects did not recognize fast food and steak as a meal, which were introduced recently in JinJu. The choice criteria and preferences of restaurant foods were different from the age and gender groups. The over 40 age group, and men in all age groups, had more negative attitudes toward novel or unfamiliar foods than the younger age and women groups.(Korean J. Nutrition 35(9) : 996~1006, 2002)

• The Korean Journal of Food And Nutrition
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• v.36 no.2
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• pp.137-152
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• 2023

The purpose of this study was to examine changes in serving frequency of elementary school meal before and after the COVID-19 pandemic. Number of menus provided in June and July of 2019 and 2020 were compared for 300 elementary schools in Korea. As a result, the serving frequency of la carte and dessert was increased after COVID-19. In addition, frequencies of main dishes such as pork cutlet, chicken, sweet and sour pork, hamburger steak, and so on using processed food were increased after COVID-19. Because of the longer serving time due to staggered serving, cook's working time for serving meals became longer. Therefore, it was judged that the number of servings of processed food was increased rather than the menu with a large amount of preprocessing work. Moreover, among desserts, fruits showed increased serving frequency. Serving frequencies for juice and dairy products were also increased. However, increased servings of juice and dairy products could increase sugar intake. Thus, a careful plan for menu composition is needed to provide balanced nutrients to students under emergency situations such as an infectious disease.