• Journal of the Korean Society of Food Science and Nutrition
• /
• v.15 no.3
• /
• pp.201-206
• /
• 1986

The purpose of this study is to prepare the fish sauce front mackerel scrap which usually comprises $40{\sim}50%$ of raw fish in processing. Mackerel scrap was chopped, mired with equal weight of water, and then hydrolyzed by autolysis. The optimal conditions for hydrolysis of .mackerel scrap were at $55^{\circ}C$ for 4 hours. The maximum hydrolyzed rate of protein was 65% by autolysis. Crude protein content (6.5%) and color of mackerel sauce were similar to those of traditional soybean sauce. The abundant amino acids in mackerel sauce were leucine (22.8%), isoleucine (15.0%), phenylalanine (12.6%) and valine (12.5%). In sensory evaluation, mackerel sauce was at least equal to the traditional soybean sauce in product quality.

• Food Science and Biotechnology
• /
• v.17 no.1
• /
• pp.208-211
• /
• 2008

Previously, it has been reported that Aspergillus oryzae can efficiently degrade unpleasant odor components such as butyric acid and 3-methyl butanoic acid from meju, a major ingredient in both Korean soybean paste (doenjang) and soy sauce. In this study, the optimal manufacturing conditions for the production of superior quality Korean soybean paste and soy sauce were determined. Specifically, A. oryzae AJ 100 was utilized to improve the flavor of these products. Mixtures of Korean soybean paste and A. oryzae AJ 100 culture (2 : 1), and of Korean soy sauce and A. oryzae AJ 100 culture (5 : 1), were incubated for 2 weeks at $30^{\circ}C$, and showed improved flavor. Butyric acid and 3-methyl butanoic acid were clearly degraded under these culture conditions.

• Journal of the Korean Society of Food Culture
• /
• v.31 no.4
• /
• pp.348-356
• /
• 2016

The purpose of this study was to investigate the chemical contents (sugar, nitrogen, and amino acids) and sensory characteristics of traditional soy sauce according to three different methods. The samples were taken from four different periods (0, 20, 40, and 60 days after fermentation). Total sugar contents increased in all groups according to ripening period, and Gyupjang (G) showed the highest sugar content among the groups. Total nitrogen and amino acid contents of all groups increased after 60 days of ripening, and Gyupjang (G) and Gyupjang mixed with salt water (SG) had higher total nitrogen content compared to Chungjang (S) at the same period. The results from the sensory evaluation show that preferable sensory characteristics, such as color preferences, sweetness, umami taste, and overall preference, were significantly higher in Gyupjang (G) and Gyupjang mixed with salt water (SG) than in Chungjang (S). Preferable sensory characteristics had significantly high positive correlation with most amino acids, total nitrogen, and sugar contents, except for glutamine. Based on the significant difference in preferable sensory characteristics between Gyupjang mixed with salt water (SG) and Chungjang (S), Gyupjang mixed with salt water (SG) can be used to improve sensory characteristics. This research implies that adding salt water during the manufacturing Gyupjang process is advisable to yield high quality soy sauce.

• Journal of the East Asian Society of Dietary Life
• /
• v.14 no.3
• /
• pp.175-186
• /
• 2004

The “Jeungbosallimgyeongje” was literature reviewed about the manufacture of Korean sauces. Furthermore, in order to investigate the changes made by time period, other literatures, “Eumsigdimibang(1670s)”, “Sallimgyeongje(1715)”, “Gyuhapchongseo(1815)” and “Choson­mussangyorijebeop(1930)”, were compared. The ingredients mentioned included soy beans, flour, barley, elm trees, red beans and blue beans, etc. In addition, the shapes and sizes of dried soybean paste brick were varied. “Manchojang”, which designated the kind of hot pepper paste, appeared in this book for the first time. During its manufacturing process, it was characteristic to add dried bean paste, sea kelp and fish to produce a novel and higher quality product. From the above mentioned books, we found out that Koreans used only the soybeans and Chinese a mixture of buckwheat, flour and barley in addition to soybeans to make their traditional sauces. According to the“ Gyuhapchongseo” , there was a slight difference in ingredients to add for the manufacture of fish sauce, but the manufacturing methods and the one year period needed for maturing the ingredients were the same.. However, in the “Chosonmussangsinsikyrijebop”, fish sauce and meat sauce were classified separately and their manufacturing methods were different as well. In conclusion, the ingredients of used for the sauces recorded in “Jeungbosallimgyeongje” were various and at first hot pepper sauce made from “Manchojang” appeared and additionally red peppers were added to five kinds of Korean paste and red pepper powder were added to two kinds of Korean paste. The manufacturing method of the sauces changed according to time period, for example, only soybean has been used in Korean traditional sauces and other ingredients used as for Chinese ones eventually disappeared.

• Journal of the Korean Society of Food Culture
• /
• v.23 no.6
• /
• pp.667-680
• /
• 2008

The moisture contained in conventionally extracted red crab shell samples was lower than than in samples extracted using high pressure. In contrast, ash content increased as the extraction time increased and displayed no significant variation in high pressure extraction. Extraction time was influential, with lower lightness (L-value) being obtained in samples extracted at high pressure as compared to traditional extraction. However, large variation in a- and b-values resulted from traditional extraction. For both traditional and high pressure extraction increases in pH, salinity and saccharide content were noted with increasing extraction time, but these parameters did not vary substantially in red crab shell extracted at high pressure. The mineral content in samples extracted by high pressure was higher than in traditionally extracted samples. The mineral content increased with time, with marginally higher contents of essential amino acids and flavor enhancing amino acids noted following high pressure extraction. The contents of the flavor enhancing amino acids increased from 30?60 min, thereafter decreasing. Assessment of consumer acceptance revealed that, while traditionally manufactured red crab sauce was popular, sauce manufactured using a 60 min high pressure extraction was preferred. Extending the high pressure extraction time to 75 min produced a less sensory acceptable product, due to higher mineral and protein levels.

• Journal of the East Asian Society of Dietary Life
• /
• v.21 no.4
• /
• pp.545-552
• /
• 2011

Fernbraken is a popular and well-known wild grass, but the physiochemical properties of Korean Traditional pickling (Jangachi) during aging have been little reported. Therefore, this study was carried out to investigate the physiochemical properties of Fernbraken Jangachi treated with a soybean sauce mixture for 6 weeks (1st pretreatment) as well as fermented with soybean paste, red hot pepper paste and soybean sauce for 7 weeks. Total polyphenol contents, acidity, salinity, sweetness (Brix), and ${\alpha}$-tocopherol of Fernbraken Jangachi all increased with aging period. On the other hand, pH and total acidity of Fernbraken Jangachi did not change much. Among the three kinds of Jangachies, Jangachi fermented with soybean sauce showed 2 fold higher salinity and total acidity levels compared to the others. Therefore, the physiochemical properties of Fernbraken Jangachi were dependent on the pickling properties, such as soybean paste, hot pepper paste or soybean sauce, and these properties maintained a certain level after 5~6 weeks of aging. Further, proper aging period for Fernbraken Jangachi was suggested as 10 weeks.

• Korean journal of food and cookery science
• /
• v.31 no.4
• /
• pp.441-447
• /
• 2015

This study was conducted to investigate the effects of educating 5th graders in elementary school about Korean traditional fermented soy products. The percentage of correct answers from the educated group increased after nutrition education compared to the non-educated group (p<0.001). The perceptions and attitudes regarding Korean traditional fermented soy products increased significantly after nutrition education (p<0.05). Analysis of the preference for Korean traditional fermented soy products based on participation in nutrition education showed that both groups were not significantly different in all categories including soybean paste, soy sauce, and red pepper paste. The investigation on differences in intake frequency of Korean traditional fermented soy products showed that both groups did not display statistically significant differences in all categories including soybean paste, soy sauce, and red pepper paste. These results confirmed that the nutrition education activity program had positive effects in correcting 5th graders' knowledge, perceptions and attitudes regarding Korean traditional fermented soy products. However, it did not significantly affect their preferences and intake frequency. This indicates that short-term education cannot effect changes in preference or actual behaviors. Therefore, continuous nutrition education activities are required.

• Proceedings of the Korea Hospitality Industry Research Society Conference
• /
• 2003.05a
• /
• pp.51-58
• /
• 2003

The autoclave method and the traditional cooking method are compared for nutrients, mineral, color difference, viscosity, reducing sugar and amino nitrogen content of brown stock. For protein and amino nitrogen contents, the autoclave cooking method is better than the traditional cooking method. Also, reducing sugar content is increased by the autoclave cooking method. Since the color of brown sauce is related with reducing sugar content, the autoclave cooking method is more effective than the traditional cooking method for the color of brown sauce. Since the autoclave method can reduce the cooking time without the loss of quality in brown stock, the traditional method can be substituted by this new method.

• Journal of the Korean Society of Food Culture
• /
• v.26 no.4
• /
• pp.307-313
• /
• 2011

The main purpose of this study was to perform a literature review regarding bibimnaengmyeon (cold buckwheat noodles mixed with sauce)-related recipes. To conduct this research, we analyzed recipe data published in Korea from the 1800's to the 1980's. The research was conducted by content analysis and literature review. The documents used in the research were 30 books (dictionaries and recipe books). A total of 37 bibimnaengmyeon-related recipes were identified. The results of the analysis of documented data published within the last 200 years showed two different types of main ingredients for bibimnaengmyeon-related recipes; noodles based on buckwheat flour, and noodles based on wheat flour. Additionally, the bibimnaengmyeon-related recipes were divided according to the sauce; 1) noodles mixed with red pepper sauce and 2) noodles mixed with soy sauce.

• The Korean Journal of Community Living Science
• /
• v.17 no.4
• /
• pp.113-125
• /
• 2006

The purpose of this study was to analyze the status of intellectual property rights and developmental direction for brands of special rural products in Korea. The data was derived from 166 special rural products in Korea. The major results of this study were as follows: Enterprises having intellectual property rights above one were Traditional soybean sauce 18(56.2%), Hangwa 15(42.9%), Kimchi 18(43.9%), Traditional tea 20(80%) and Crafted products 10(31.3%), respectively. Enterprises acquiring designation and certification due to national and local autonomous entities over one were Traditional soybean sauce 17(56.7%), Hangwa 23(63.9%), Kimchi 33(80.4%), Traditional tea. 13(52%), and Crafted products 20 (62.5%), respectively. The trademark registration of special rural products was invested with total 62 cases(37.3%) as Traditional soybean sauce 14(43.7%), Hangwa 15(41.7%), Kimchi 17(41.5%), Traditional tea. 12(48%) and Crafted products 4(12.5%). And Patent registration 39 cases(23.5%), design registration 32 cases(14.5%), and utility model registration 5 cases (3.01%) were invested respectively. It was shown that, where the origin of brand names was a proper non 107 were things(53%), 39 were materials(19.3%), 17 were the production method(8.41 %) and 55 were a composite trademark(33.1%).