• Korean Journal of Food Science and Technology
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• v.26 no.3
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• pp.226-230
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• 1994

In order to compare fall cultivars of Chinese cabbage for kimchi preparation, their physicochemical and organoleptic properties during kimchi fermentation were investigated. When physical characteristics of ten fall cabbage cultivars were compared, `Olympic' had the heaviest average weight and `Chungsan' was the longest in total length. They were also analyzed chemically and compared on water content, vitamin C and reducing sugars. `Noranmat' had the highest water content and `Chungsan' had the highest contents of vitamin C and reducing sugar. Kimchi samples prepared with each fall cultivar were fermented at $4^{\circ}C$ for $40^{\circ}C$ Says, of which pHs and total acid contents were measured and sensory characteristics were compared. Their pHs of `Lipdong' and `Taebok' were lowered most slowly and their pHs of all cultivars were lowered to less than pH 4.0 after the storage of 40 days. Their total acid contents of most cultivars were ranged from 0.55 to 0.59% after the same period. It was shown from the result of sensory eva uation that `Karaksin-1' and `Olympic' were considered to be the best among fall cultivars of Crinese cabbage for kimchi preparation.

• Food Science and Preservation
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• v.19 no.4
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• pp.539-546
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• 2012

In this study, we investigated quality and fermentation characteristics in baechu kimchi containing 0(control), 5(GK5), 10(GK10), 15(GK15) and 20(GK20)% of shred garlic. Analysis was performed during fermentation at $4^{\circ}C$ for 42 days, every 7 days. The result showed significant changes in color value between control group and garlic added groups. Hunter's color L value was increased during fermentation whereas a and b value were decreased. Hardness of kimchi was higher in 15% and 20% garlic added groups than other groups. The pH decreased significantly during fermentation, while titratable acidity was showed reverse tendency during fermentation period. The reducing sugar content was decreased in all groups during fermentation period, which higher in GK10 and GK15 group than the others. But its remaining ratio was 19.7~22.3% and not showed significant difference in experimental groups at 42 days fermentation. The number of lactic acid bacteria was dramatically increased up to 6.13~7.60 log CFU/g at 7~14 days fermentation. The garlic was inhibited significantly the growth of lactic acid bacteria, but this was not showed significant difference between garlic added groups and control group, after 28 days fermentation. As a results, we suggest that addition of garlic increase the quality characteristics and storage properties of Kimchi, and not hinder quality of kimchi at addition level of 20% than salted baechu.

• The Korean Journal of Food And Nutrition
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• v.16 no.1
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• pp.7-14
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• 2003

This study mainly focused on to investigate the effects of Schizandra chinensis on the growth of a bacterium, CS6 which was isolated from kimchi. CS6 was final]y identified to lactobacillus plantarum that caused acidification of kimchi. The ethanolic extract of Schizandra chinensis(EES) inhibited the growth of L. plantarum. Minimum inhibition concentration of crude EES on L. plantarum was 62.5mg/$m\ell$. In broth culture, 5$\mu\textrm{g}$/$m\ell$ of EES completely inhibited the growth of L. plantarum during fermentation. The addition of 0.4% of EES has no apparent effect on quality including the taste and color on kimchi. It was expected that EES-containing kimchi could extend the period of preservation. Analysis of organic acids in water fractions of EES was carried out by HPLC. It is apparent that antimicrobial active fractions contained the highest concentration of succinic acid, a little tartaric acid and malic acid. Among these organic acids, succinic acid showed the strong inhibitory effect against L. plantarum CS6 in vitro. Succinic acid-containing kimchi with a concentration of 0.4 and 0.5% had the inhibitory effect on growth of L. plantarum. Inhibitory effect of EES on amylase, cellulase and pectinase was also tested. In conclusion, the present experiment demonstrated that EES inhibited the growth of L. plantarum, and various enzyme activity. EES-containing kimchi was sustained the hardness, and initial acidity during fermentation. EES was considered as the possible additive of kimchi process and EES added in kimchi increase the quality, and storage period of kimchi.

• Microbiology and Biotechnology Letters
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• v.42 no.3
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• pp.267-274
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• 2014

High pressure processing (HPP) is a non-thermal method used to prevent bacterial growth in the food industry. Currently, pasteurization is the most common method in use for most milk processing, but this has the disadvantage that it leads to changes in the milk's nutritional and chemical properties. Therefore, the effects of HPP treatment on the microbiological and chemical properties of milk were investigated in this study. With the treatment of HPP at 600 MPa and $15^{\circ}C$ for 3 min, the quantity of microorganisms and lactic acid bacteria were reduced to the level of 2-3 log CFU/ml, and coliforms were not detected during a storage period of 15 d at $4^{\circ}C$. An analysis of milk proteins, such as ${\alpha}$-casein, ${\beta}$-casein, ${\kappa}$-casein, ${\alpha}$-lactalbumin, ${\beta}$-lactoglobulin by on-chip electorophoresis revealed that the electrophoretic pattern of the proteins from HPP-treated milk was different from that of conventionally treated commercial milk. While the quantities of vitamins and minerals in HPP-treated milk were seen to be comparable to amounts found in raw milk, the enzyme activity of lipase, protease and alkaline phosphatase after HPP treatment was reduced. These results suggest that HPP treatment is a viable method for the control of undesirable microorganisms in milk, allowing for minimal nutritional and chemical changes in the milk during the process.

• Journal of the Korean Society of Food Culture
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• v.33 no.4
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• pp.307-321
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• 2018

This study will introduce the foods recorded in Gyemiseo and disclose the substantive characteristics of traditional Korean food in the early stage of the Joseon Dynasty. Gyemiseo is a cook book manuscript written in the Chinese language that was rebound into book format at the end of the Joseon Dynasty in 1911, some 358 years after it was originally written in the $163^{rd}$ year of the Joseon Dynasty (1554) While the majority of cook books begin with recipes for various types of wines and liquor followed by those for fermented sauces, fermented vegetables (such as kimchi), vinegars and storage methods, etc., Gyemiseo begins with recipes for fermented sauces, followed by recipes for various kimchis, how to make vinegars, main meals, side dishes, rice cakes and confectionaries, with recipes for wines and liquor introduced last. Therefore, it can be assumed that the methods of brewing wines and liquors were additionally recorded for bookbinding. There are a total of 128 recipes recorded in Gyemiseo, including 13 for fermented sauces, 14 for kimchi, 11 for the main meal, 26 for side dishes, three storage methods, four for rice cakes and confectionaries, and 44 for wines and liquors. It is believed that contents of Gyemiseo will provide a foundation on which to pursue researches on the process of transition of cooking methods of traditional cuisines of Korea during the Joseon Dynasty.

• Food Science of Animal Resources
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• v.35 no.2
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• pp.189-196
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• 2015

The aim of this study was to manufacture functional high protein fermented beverage, using whey protein concentrate (WPC) and Lactobacillus plantarum DK211 isolated from kimchi, and to evaluate the physicochemical, functional, and sensory properties of the resulting product. The fermented whey beverage (FWB) was formulated with whey protein concentrate 80 (WPC 80), skim milk powder, and sucrose; and fermented with Lactobacillus plantarum DK211 as single, or mixed with Lactococcus lactis R704, a commercial starter culture. The pH, titratable acidity, and viable cell counts during fermentation and storage were evaluated. It was found that the mixed culture showed faster acid development than the single culture. The resulting FWB had high protein (9%) and low fat content (0.2%). Increased viscosity, and antioxidant and antimicrobial activity were observed after fermentation. A viable cell count of 10⁹ CFU/mL in FWB was achieved within 10 h fermentation, and it remained throughout storage at 15℃ for 28 d. Sensory analysis was also conducted, and compared to that of a commercial protein drink. The sensory scores of FWB were similar to those of the commercial protein drink in most attributes, except sourness. The sourness was highly related with the high lactic acid content produced during fermentation. The results showed that WPC and vegetable origin lactic acid bacteria isolated from kimchi might be used for the development of a high protein fermented beverage, with improved functionality and organoleptic properties.

• Journal of the Korean Society of Food Science and Nutrition
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• v.39 no.11
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• pp.1678-1683
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• 2010

For extension of storage period of cabbage-kimchi, effects of heat treatment as well as nisin or yucca extract were examined on the growth of microbes. Firstly, when kimchi was heated at various temperatures in polyethylene plastic bottle or membrane pouch, the optimum inhibitory condition giving no sensory change was at $80^{\circ}C$ for 30 min in a plastic membrane pouch and this treatment made a reduction of $0.3\;log_{10}CFU/g$ in total microbes. The result showed that use of plastic bottle was inefficient due to low heat transfer rate. Interestingly, pasteurization of seasoning pastes at $80^{\circ}C$ for 30 min separately from cabbage resulted in better inhibitory effect reducing $0.5\;log_{10}CFU/g$ of total bacteria and $1.0\;log_{10}CFU/g$ of lactic acid bacteria, and this operation was regarded as a promising inhibitory method. Secondly, when nisin and yucca extract were separately added in kimchi, microbial growth was inhibited during storage period and their inhibition effects were enhanced at lower temperature.

• Food Science of Animal Resources
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• v.31 no.1
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• pp.9-18
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• 2011

This study was aimed at comparing the pH, color, thiobarbituric acid (TBA), volatile basic nitrogen (VBN), textural properties, and sensory evaluations of chicken meat patties containing lotus (Nelumbo nucifera) leaf powder, and assessing their shelf-life at refrigeration temperature ($4{\pm}1^{\circ}C$). In the refrigerated storage, the pH, lightness, yellowness, springiness values, and sensory properties scores of the control as well as all the treated samples decreased as the storage increased. The hardness, gumminess, chewiness, TBA, and VBN-values of control and all the samples treated with lotus leaf increased during refrigerated storage. At the end of the storage period (day 28), chicken patties containing lotus leaf powder had lower pH, redness, yellowness, TBA, VBN, hardness, gumminess, and chewiness values than those of control. The results of this study showed that a lotus leaf powder can increase storage stability in chicken meat products.

• Journal of the East Asian Society of Dietary Life
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• v.15 no.3
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• pp.247-256
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• 2005

This study was performed by questionnaire to investigate the preference for Korean traditional foods and revisiting intentions of Japanese tourists. The Subjects were consisted of 280 Japanese tourists staying at Gyeongju and Busan area. The results of this study were as follows: Among the respondents, $61.1\%$ selected 'taste' as the most important factor affecting the preference for korean traditional foods. On the frequency of eating, 'over 8 times per year' scored as high as $27.9\%$. The motivation of eating Korean foods was answered as 'With visiting Korea' by $48.2\%$ Thirties and forties ate Korean traditional foods more often than the others did $61.8\%$ of the Japanese tourists intended to eat more Korean traditional foods in the future. But the necessity of hygienic improvement was pointed out by $32.1\%$ of the subjects. Male subjects wanted the improvement of nutrition, taste and storage, while females shape, color and packing. The preferred Korean traditional foods were 'Bulgogi', 'Kimgui', 'BaechooKimchi', 'Bibimbap', and 'Samgaetang' in the order. On the other hand, the preference for 'Soojeongkwa', 'Songpeon', 'Kalgooksoo', 'Injelmi' and 'Sikhye' was very low. Male subjects favoured 'Cholbap', 'Ogokhap', and 'Youkgaejang', while females liked better 'Oisobaki' and 'Ddukboki. The people who were over fifties preferred 'Ssalbap', 'Boribap', 'BaechooKimchi', and 'Ggakdugi' and forties liked 'Kongbap' and 'Kimhap' better. The most effectual food items provoking revisiting intention to Korea were 'Jeon', and 'Bap', 'Meon' and 'Jjigae' were ranked in next.

• Journal of the East Asian Society of Dietary Life
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• v.11 no.5
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• pp.379-385
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• 2001

The effects of lactic acid bacteria from kimchi fermentation, specifically Lactobacillus plantarum(LP) and Leuconostoc mesenteroides (LM) on the quality of the bread product was investigated. The two types of bacteria were cultivated in the sterilized radish juice used for kimchi fermentation. The concentration of bacteria was measured at 3.0$\times$10$^{9}$ ~3.3$\times$10$^{9}$ /mL. The bacteria were added at the ratios of 5% and 10% to a mixture with wheat flour before subsequent dough fermentation. An LM+LP treatment to the mixture was also made at 5% of LP and 5% of LM. The measured pH in the dough with LM+LP was the lowest among all of treatments. The products of 5% LM treatment showed the shortest fermentation time. Loaf production by volume was the highest from the 10% LM treatment. The % of moisture loss of the bread during the shelf-storage was less when treated with lactic acid bacteria than when left untreated. The least moisture loss was observed when the bread was treated with the LM+LP mixture. Hardness of the bread also decreased with the presence of lactic acid bacteria. The order of hardness was: control > 5% LP > LM+LP > 5% LM > 17% LM > 10% LP. Staling degree of the bread when treated with lactic acid bacteria was lower than that of the control. The least staling occurred when treated with LM 10% and LP 10%.