• Food Science and Industry
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• v.51 no.1
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• pp.2-7
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• 2018

Increasing attention has been paid to rheological approaches in the food industry due to great awareness of the quality control of foods by objective analysis. Therefore, a lot of food manufacturers started to make a great of effort to instrumentally investigate the rheological properties of foods. However, the appropriate utilization of rheological instruments in the field of food science has been met with numerous technical challenges because of the lack of fundamental knowledge and knowhow. In this article, a variety of rheological instruments conventionally used in the food industry are reviewed. In addition, new rheological instruments that have been rapidly growing in popularity are introduced for potential applications. This article may provide an opportunity for the food industry to move toward the active utilization of rheological instruments.

• Journal of the Korean Society of Food Science and Nutrition
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• v.28 no.4
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• pp.773-779
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• 1999

This study was conducted to determine the changes in the contents of vitamin C and fermentation characteristics of kimchi on different Chinese cabbage variety(Koreangji Yureum: KY, Kalak Shin Il Ho: KS) and fermentation temperature(5oC, 15oC). Kimchi were fermented at 5oC and 15oC for 140 days and 25 days respectively. In all samples, total acidity increased, and the pH, total sugar and reducing sugar content decreased as the fermentation proceeded. Also, the number of lactic acid bacteria reached the maximum at the optimum fermenting stage. On the other hand, total ascorbic acid, dehydroascorbic acid and ascorbic acid from individual kimchi solid tissue significantly decreased with fermentation periods, however, increased kimchi liquid at the 7day in KS 15(kimchi prepared with Kalak Shin Il Ho at 15oC), KY 15(kimchi prepared with Korangji Yureum at 15oC) and at the 65day in KY 5(kimchi prepared with Korangji Yureum at 5oC) respectively. Therefore, different fermentation temperature as well as variety affected ascorbic acid contents and chemical characteristics of kimchi.

• Journal of the Korean Society of Food Culture
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• v.27 no.1
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• pp.19-29
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• 2012

The purpose of this study was to understand interrelationships among switching costs, customer satisfaction, and switching intent in a family restaurant. Based on a total of 427 customers obtained from empirical research, this study reviewed the reliability and fitness of the research model and verified a total of five hypotheses using the Amos program. The hypothesized relationships in the model were tested simultaneously by using a structural equation model (SEM). The proposed model provided an adequate fit to the data, ${\chi}^2$=137.881 (df=50); p< .001; CMIN/df 2.758; GFI= .947; AGFI= .919, NFI= .965; IFI= .978; TLI= .970; CFI= .978; RMR= .047; RMSEA= .064. The results showed that switching cost (${\beta}$= .123) in a family restaurant had a positive (+) influence upon customer satisfaction. Further, switching cost had a significantly negative (-) effect on switching intent (${\beta}$= -.414). In addition, there were moderating effects related to customer knowledge and variety seeking orientation in terms of the causal relationships between switching costs, customer satisfaction, and switching intent. Limitations and future research directions are also discussed.

• Journal of Applied Biological Chemistry
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• v.66
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• pp.320-327
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• 2023

Capsicum annuum belongs to the Solanaceae family, crops of which are extensively cultivated worldwide. It is a food source containing various nutrients and vitamins and also serves as a medicine for treating ailments. The burning feeling experienced while consuming Capsicum fruits is due to the presence of capsaicinoids, particularly capsaicin and dihydrocapsaicin. This study aimed to assess the content of these two compounds in 34 varieties of capsicum and paprika. High-performance liquid chromatography with a gradient elution system and a reverse-phase YMC Pack-Pro column with UV detection at 280 nm was employed. The results revealed that, among the 34 samples, only six samples (samples 1, 15, 20, 29, 32, and 34) contained capsaicin and dihydrocapsaicin, and their highest contents were found in sample 1 - variety name: Sungil-c (capsaicin: 3.42 mg/g extract, dihydrocapsaicin: 1.20 mg/g extract). These findings suggest that the content of these two compounds is attributed to the variety and is influenced by geographical location and environmental factors. Additionally, this study provides a basis for establishing a C. annuum variety with high capsaicin and dihydrocapsaicin contents.

• Food Science and Industry
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• v.51 no.3
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• pp.185-195
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• 2018

Nutrition through food is a very important life support activity for humans in maintaining a healthy life. Nevertheless, there is no absolute safe food. In the Modern Food Law, risk analysis developed as an alternative to food safety. However, the Korean Food Sanitation Act introduced risk analysis, but many problems have arisen because the right risk concept is not reflected. To solve the problem, it is necessary to reflect the exact concept of the risk. According to our Food Sanitation Act, risks are used as risk, hazard, and harmful according to the context. The study pointed out these problems and suggested a variety of comparative legal and realistic alternatives.

• Korean Journal of Food Science and Technology
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• v.28 no.3
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• pp.521-527
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• 1996

Some structural characteristics of kidney bean starches (3 varieties : Pink kidney bean, Red kidney bean and White kidney bean) were investigated. The amylose content and the ${\beta}$-amylolysis limit of kidney bean starches were $32.6{\sim}34.5%$ and $69.9{\sim}71.0%$, respectively. The kidney bean amylopectin was composed of super long chain of ${\overline{DP}}$ above 60 ($5.28{\sim}12.62%$), B chain of ${\overline{DP}}$ $45{\sim}60\;(29.85{\sim}33.65%)$ and A chain of ${\overline{DP}}\;10{\sim}20(22.94{\sim}29.85%).$ The chain distribution of kidney bean starches were different from variety to variety. The acid (2.2 NHCI) hydrolysis of kidney bean starches showed, as hydrolysis time increased, the patterns of three stages. The acid hydrolysis rate and iodine reaction of acid treated starches were different from variety to variety As acid hydrolysis time increased, the amylose and the ${\alpha}$-1.6-glucosidic linkage of amylopectin of amorphous state were gradually hydrolyzed. Finally, the chain of ${\overline{DP}}$ 20 of crystalline state was left in the acid treated starches.

• Culinary science and hospitality research
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• v.6 no.2
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• pp.67-78
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• 2000

Busan is an underdeveloped region in food culture, though it has geographically convenient conditions of location to make good use of marine products from the sea and the river, a variety of grain and vegetables, and forest products. Thus, in this research, I studied the traditional and local native foods of Busan, focusing on there origins and the backgrounds of their development. There are many traditional and local native foods in Busan, Pajun, Macguli, Jaechupguk, Gupoguksoo and etc. For the development of food culture of Busan, We will keep researching its traditional and local native foods and try to form a new pattern of food culture, making the adventage of an international trading city.

• Preventive Nutrition and Food Science
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• v.1 no.1
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• pp.127-133
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• 1996

The development of high resolution capillary columns and a large variety of different detectors led to a strong position of gas chromatography in instrumental analysis. Every effort has been made to solve sophisticated separation problems by column switching. Nowadays, several systems are commercially available for this purpose. The principle and the capabilities of multidimensional gas chromatography(MDGC) are illustrated by different applications in the field of modern flavor and essential oil research.

• Food Science and Industry
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• v.50 no.1
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• pp.36-56
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• 2017

The importance of noodles in Korean diet is becoming greater in recent years. This article is an overview on a variety of Korean noodles including dried noodle, naengmyeon (buckwheat noodle), dangmyeon (starch noodle) and instant fried noodle. It gives also the background information on the changes of the definition of noodles. Since Koreans are the largest consumer of instant fried noodles per capita in the world, primary emphasis was placed on the development history of instant fried noodles.

• Journal of the Korean Society of Radiology
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• v.8 no.6
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• pp.347-355
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• 2014

Traditionally heating method, pasteurization, irradiation fumigation method and radiation sterilization through a variety of methods to be performed. Irradiation energy requirements compared to the other sterilization methods is small and a strong permeability as a continuous process is possible. Irradiation energy requirements compared to the other sterilization methods is small and a strong permeability as a continuous process is possible. Also sterile, conflict, and control the germination inhibition effective food safety in the food chain has been highlighted as a conservation technique. Foreign countries is carried out extensive research on the safety and the use of irradiation food, gradually increasing. As a result, awareness of the food is irradiated with a low average showed 2.73 point. Therefore through a variety of media to improve the awareness of irradiated food and the active promotion seems to require an appropriate educational program.