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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Korean journal of food and cookery science
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Journal DOI :
Korean Society of Food and Cookery Science
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Volume & Issues
Volume 4, Issue 2 - Dec 1988
Volume 4, Issue 1 - Jun 1988
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A Study of the Foaming Poperties of Mungbean Protein Isolate
Korean journal of food and cookery science , volume 4, issue 2, 1988, Pages 1~9
This study was carried out in order to study the foaming properties of mungbean protein. Mungbean protein isolate was tested for the purpose of finding out the effect of pH, addition of sucrose on foaming properties. The results were summarized as follows: 1. Foam expansion values were generally depen. dent on protein concentration to 3% protein suspension. From 1% to 3% suspension, foam expansion values increased. However over 3% suspension, the values decreased. In 1% mungbean protein suspension, the foam expansion value of suspension at pH 4.5 was greater than that of at pH9. In 3%, 5%, and 10% suspensiona the foam expansion values of suspension at pH 7 was the lowest. Foam expansion value significantly decreased by the addition of sucrose. 2. The foam stability appeared the greatest value as protein concentration increased. It appeared the greatest value at pH 4.5. When sucrose was added, the foam stability increased. The more sucrose was added, the better foam stability was.
Studies on the Factors Affecting Quality and Textural Characteristics of Artificial Gluten Meat Part II: Effects of amount of ingredients on properties of AGM (Walnut, Oils, Salt, Onion)
Korean journal of food and cookery science , volume 4, issue 2, 1988, Pages 11~19
These experiments were carried out to study the factors affecting quality and textural characteristics in the preparation of artificial gluten meat (AGM). These results were compared with the raw beef on its properties. Effects of amounts of ingredients on properties of AGM were summarized as follows: 1. On effects of amounts of ingredients, walnut was one of the most factors on the color in AGM The more increased the amounts of walnut, the more decreased hardness, cohesiveness, chewiness, and the more increased springiness and water holding capacity. Therefore, the 30% of walnut added sample became similar to raw beef. 2. The kinds and amounts of oil and mixing methods did not affect on color, shear force, and chewiness, but did on cohesiveness significantly 3. The more increased the salt levels, the better were the hardness and chewiness, but shear force and water holding capacity were not affected. 2% of salt added sample approached to raw beef in hardness, springiness, cohesiveness and chewiness. 4. The more onion levels increased, the more hardness and chewiness decreased.
A Study on the Cookery of Andong Sikhe(II) -Physicochemical Changes upon Fermentation Temperature and Time-
Korean journal of food and cookery science , volume 4, issue 2, 1988, Pages 21~30
To study the optimum fermentation and aging conditions for preparation of Andong Sikhe which is consumed in the northern Kyungbuk province as a traditional beverage, Sikhe were fermented and aged at
for 48, 60 and 72hrs and fermented at 40, 50. and
for 2, 3, and 4hrs and then aged at
for 20 hrs, Non-volatile organic acids and free sugars were analyzed by GC and HPLC, respectively, and sensory test was performed. Sikhe fermented at
for 3hrs and aged at
for 20hrs was evaluated the most favorable one by sensory test. This Sikhe had the lowest pH 4.6~4.7 among sample and 14.6% of sugar. The sugar content was lower than those of Sikhe Fermented at
. In organic acid analysis, the concentration of malate 67.53%/mg in this Sikhe was the highest. Lactate, succinate and maleate were produced more in this Sikhe than in any other ones. Oxalate which was existed before fermentation was not found in the Sikhe, and a small amounts of citrate and fumarate were produced. In sugar analysis, maltose was dominant 11.56%, glucose 1.25% and fructose 0.45%.
Study on Rheological Characterization and Chemical Composition by Cooking Method of Yeongebacksuk (Korean traditional cooked chicken)
Korean journal of food and cookery science , volume 4, issue 2, 1988, Pages 31~38
The chicken cooked by three different methods were put and sensory evaluation, mechanical and chemical composition test. The results were as following : 1. Standard recipe were as followig : \circled1 Kettle cooking was chicken 700 g, waxyrice 100 g, garlic 30 g, water 2000 cc, time 60 min. \circled3 Pressure cooking was chicken 700 g, waxyrice 100 g, garlic 30 g, water 2000 cc, time 30 min. \circled3 Microwave cooking was chicken 700g, waxyrice 100 g, garlic 30 g, water 1000 cc, time 30 min. 2. Sensory evaluation \circled1 There were no typical difference of the color of soupstock with in the three cooking methods. \circled2 The turbidity of soupstock was from Kettle cooking, microwave cooking and pressure cooking in turn. \circled3 There were no typical difference of the viscosity of soupstock with in the three cooking methods. \circled4 The kettle cooking was the best of mouthfeel and taste. \circled5 There were no typical difference of muscle, with in the three cooking methods. 3. Mechanical Test \circled1 The result of the cutting force of muscle which measured by rheomether were the leg muscle was more tough than breast muscle. \circled2 The viscosity of boiled rice was from kettle cooking, pressure cjooking and microwave cooking in turn. \circled3 The result of the turbidity of soupstock which measured by spectrophotmeter was from kettle cooking, pressure cooking and microwave cooking in turn. 4. Proximate chemical composition \circled1 Protein of muscle was 20.30-25.67%, Soupstock was 0.29-0.72% \circled2 Fat of muscle was 27.29-47.15% , Soupstock was 37-68.38%. \circled3 Potasium of muscle was 2.75-3.6 mg, Soupstock was 1.15-6.3 mg. \circled4 Iron of muscle was 1.17-1.39 mg, Soupstock was 0.96 mg.
The effect of Salt and Food Preservatives on the Growth of Lactic acid bacteria isolated from Kimchi
Korean journal of food and cookery science , volume 4, issue 2, 1988, Pages 39~50
Main lactic acid bacteria fermenting “Baechu Kimchi” and” “Dongchim”, which are indigenous fermented food in Korea, were isolated at optimum fermentation period and identified. The three groups of food preservatives-sorbic acid, p-hydroxybutyl benzoate (POBB), p-hydroxypropyl benzoate (POPB), and sorbic acid-POBB were prepared, and the effect of the food preservatives and various salt concentrations on those lactic acid bacteria was examined. The results obatined are as follows; 1. Lactic acid bacteria were isolated from “Baechu Kimchi” and “Dongchimi”and identifed as Leuconostoc mesonteriodse, Lactobacillus plantatum, Lactobacillus brevis, Streptococcus faecalis, and Pedicoccus pentosaceus. 2. Lactic acid bacteria were grown much better at 0.5-2% NaCl level than 0% NaCl level. 3. Among the isolated lactic acid bactera, Lactobacillus plantarum showed the highest acid producibility. The lower the concentration of NaCl, the higher the acid producibility by Leuconostoc mesentroides, and the other bacteria produced a large amount of acid at 0.5-2.5% NaCl level. 4. Both the sorbic acid (0.05-0.1%) and sorbic (0.05%)-POBB (0.004%) groups showed the highest preservatives effect. In contrast, however, POPB (0.01% ) Group showed the lowest effect, and the preservatives effect was enhanced by the addition of NaCl. Lactobacillus plantarum was least affected by all preservatives, whereas Leuconostoc mesentroides was most affected by them.
A study of Physico-Chemical Analysis and Sensory Evaluation for Cooked Rices Made by Several Cooking Methods (II) -Especially for warm and cool cooked Rices-
Korean journal of food and cookery science , volume 4, issue 2, 1988, Pages 51~56
The sensory and instrumental characteristics of warm and cool cooked rices with pressure and electric cookers were examined. The types of rice varieties tested were Choucheong (traditional rice variety) Samgang and Seogwang (high-yielding rice varietis) The result of sensor evaluation revealed more significant differences in most of appearance, texture characteristics than flavour. The difference of sensory characteristics according to the types of cookers and the warm or cool cooked rices was greatest in Seogwang among three varieties. The instrumental measurement of cooked rices using instron showed that the difference between types of varieties and cookers was more clearly in cool cooked rices than warm ones. Especially hardness in instrumental characteristics revealed highly signficant difference. With regard to the correlation between instrumental and sensory characteristics, hardness had a significantly high correlation with texture while others had low ones.
The Effect of Lipoxygenase Isoenzynes on the Odor and Taste of Soybean Sprouts during Cooking
Korean journal of food and cookery science , volume 4, issue 2, 1988, Pages 57~64
The present study was conducted to characterize lipoxygenase isoenzymes isolated from germinating soybean seeds to obstain pH profiles, carbonyl Production, carotene bleaching abilities, and stability to heat. The roles of these lipoxygenase isoenzymes in the generation of volatile carbonyl compounds were investigated to associate with off-flavor and odor of soybean sprouts cooked to different temperatures. Lipoxygenase isoenzymes were isolated from soybean sprouts using ammonium sulfate fractionation, gel filtration and ionexchange chromatography. Two main lipoxygenases exhibited maximum activity at pH 6.5 (lipoxygenase 2) and at pH 9.5 (lipoxygenase 1), respectively. Both lipoxygenase 1 and 2 produced 280 nm absorbing carbonlys and bleached carotene. The abilities of hydroperoxide formation, 280 nm absorbing carbonyl production and carotene bleaching of lipoxygenase isoenzymes were decreased significantly as the cooking temperature raised. Sensory evaluation data presented that raw and
cooked soybean sprouts showed significantly higher grassy odor than
cooked soybean sprouts. On the other hand beany odor was significantly higher in
cooked soybean sprouts than in raw and
cooked soybean sprouts. These results indicate that lipoxygenase plays a role in the development of off-odor and flavors in soybean sprouts under the condition of chewing and inadequate heating.
Fusarin C Production by Fusarium moniliforme in Liquid Media
Korean journal of food and cookery science , volume 4, issue 2, 1988, Pages 65~69
This study was carried out to find the optimum condition for production of fusarin C, Known as a mutagenic and toxic agent. Three liquid media, Czapek-kox, MYRO, GYEP and microorganism, Fusarium moniliforme F84 isolated by Bjeldanes lab. in U.C. Berkeley, were used in this experiment. Fusarin C amounts were determined upon PH and fluctuating time/temperature. The results were obtained as follows; 1. The largest amounts of fusarin C were shown in Czapek-Dox medium and the amounts were about 1/10 of fusarin C amounts in corn culture. 2. In Czapek-Dox medium, the best condition for fusarin C production was at
for 2 weeks culture, and in corn culture, at
for l week culture. 3. The best initial PH for fusarin C production was 6.5 in Czapek-Dox medium and also at the initial pH 6.3, 5.9 the fusarin C amounts produced were much higher than other initial PH.
A Study on Microbiological Quality & Safty Control of Cold Sybean Noondles serviced by an Industry Foodservice Establishment
Korean journal of food and cookery science , volume 4, issue 2, 1988, Pages 71~79
This study is written to look into microbiological quality by passage of time and holding methods after making foods, by means of evaluating time, temperature and microbiological quality during various phases in product flow of cold soybean noodles serviced by an industry feeding operation for 500 persons a day, measuring pH & Aw and analyzing factors affecting microbiological growth conditions. The results were as follows: 1. According to phases in product flow of cold soybean noodles, it showed 15.6 hours of mean of needed time,
of room temperature, 5.1~7.6 of pH value & 0.95~0.98 of Aw except dry noodles. These conditions were good for multipling of microbe, and the phases with potential sanitary danger were ingredient, pre-preparation, holding before assembly and service and assembly & service. 2. As for holding methods and passage of time, holding at cold table was more effective than holding at room temperature as time past. 3. As for equipments using for making food, dipper, basket, kitchen board & kitchen towel showed high microbiological value in total aerobic plate counts and kitchen towel and stainless-steel were showed high microbioloical value in coliform counts. 4. E. coli, food poisoning bacteria was detected from barrel filled with soybean soup and also soybean itself.
Consumption Pattern of Ramyon by Elementary School Pupils -Kangwon do Area-
Korean journal of food and cookery science , volume 4, issue 2, 1988, Pages 81~86
Consumption pattern of Ramyon (fried instant noodle) by elementary school pupils at age of 10∼13 years in Kangwon-do area was surveyed by questionaire. About 64% among 675 pupils consumed Ramyon more than once or twice per week. On the whole, common Ramyon was frequently consumed as a kind of substitutes for normal meal at home because of its convenience. The advertisement had strong effect on the selection of Ramyon. Especially, gummy texture of noodle and hot taste of soup are playing as a vital role in choosing Ramyon. At present, no significant differences in consumption pattern between sex were observed in most cases.