• Title/Summary/Keyword: rice starch

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A Study on the Cooking and Processing Methods Presented in CHE MIN YO SUL -Palfaze- ("제민요술(濟民要術)"에 수록된 식품가공법 연구보고(II) -팔화제-)

  • Yoon, Seo-Seok;Yoon, Sook-Kyung;Cho, Hoo-Jong;Lee, Hyo-Gee;Ahn, Sook-Ja;Ahn, Myong-Soo;Suh, Hye-Kyung;Yoon, Duk-Ihn;Lim, Hee-Soo
    • Journal of the Korean Society of Food Culture
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    • v.6 no.2
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    • pp.137-140
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    • 1991
  • PALFAZE is one of ZE. ZE is One of the Chinese Sause. Especially PALFAZE is made from eight materials and used for the slices raw fish or raw meat. At first ZE was made from pickled vegitables that minced, or added vineger, some spices. But later when the garic-growing was spreaded it was changed to be made from minced garic, ginger mixed in vineger or added some spices, starch. Especially PALFAZE is made from garic, ginger, salt, vineger, mamanufactured plum, dried orange rind, boild chestnut, boiled rice.

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Silkworm (Bombyx mori) Response to Differently Formulated Artificial Diets

  • Mottaghitlab, M.;Pourali, M.
    • International Journal of Industrial Entomology and Biomaterials
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    • v.8 no.2
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    • pp.207-210
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    • 2004
  • Artificial diet (AD) has shown with different advantages over mulberry leaves (ML). Various types of such feed for silkworm have been developed and proposed. The aims of this study were possibility rearing whole instar of silkworm on AD and to find some economic formulation for rearing silkworm, compare to that ML. Eleven ADs (D$_1$ to D$_{11}$) were prepared with different percentage of mulberry leaf powder, and other ingredients such as soybean meal, cellulose, potato starch, agar, wheat flour, rice bran, etc. Five formulated diets (D$_1$ D$_2$, D$_{5}$, D$_{10}$ and D$_{11}$) appeared to have similar response to that ML (D$_{m}$). There were no significant differences for duration period between ADs, all of which recorded with higher duration than mulberry leaves. Compared to other died used in the present study D$_1$ and D$_{10}$ showed better growth development and survival rate. Larvae fed D$_1$, D$_2$, D$_{5}$, D$_{10}$ and D$_{11}$ grew faster and produced heavier and more useful cocoons.coons.coons.coons.

Improvement of Fungal Cellulase Production by Mutation and Optimization of Solid State Fermentation

  • Vu, Van Hanh;Pham, Tuan Anh;Kim, Keun
    • Mycobiology
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    • v.39 no.1
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    • pp.20-25
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    • 2011
  • Spores of Aspergillus sp. SU14 were treated repeatedly and sequentially with $Co^{60}$ ${\gamma}$-rays, ultraviolet irradiation, and N-methyl-N'-nitro-N-nitrosoguanidine. One selected mutant strain, Aspergillus sp. SU14-M15, produced cellulase in a yield 2.2-fold exceeding that of the wild type. Optimal conditions for the production of cellulase by the mutant fungal strain using solid-state fermentation were examined. The medium consisted of wheat-bran supplemented with 1% (w/w) urea or $NH_4Cl$, 1% (w/w) rice starch, 2.5 mM $MgCl_2$, and 0.05% (v/w) Tween 80. Optimal moisture content and initial pH was 50% (v/w) and 3.5, respectively, and optimal aeration area was 3/100 (inoculated wheat bran/container). The medium was inoculated with 25% 48 hr seeding culture and fermented at $35^{\circ}C$ for 3 days. The resulting cellulase yield was 8.5-fold more than that of the wild type strain grown on the basal wheat bran medium.

Determination of Organic acids of Kochuzang prepared from various Starch Sources (전분질원료(澱粉質原料)를 달리한 고추장의 유기산정량(有機酸定量))

  • Lee, Taik-Soo;Park, Sung-Oh;Lee, Myung-Whan
    • Applied Biological Chemistry
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    • v.24 no.2
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    • pp.120-125
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    • 1981
  • Organic acids of Kochuzang (red pepper paste) prepared from glutinous rice, polished barley, wheat flour and sweet potato were analyzed by a gas chromatography. Lactic, pyruvic, succinic, fumaric, malic, pyroglutamic and citric acid were identified. And trace amount of oxalic acid was found in the Kochuzang prepared from sweet potato. The dominant organic acid of all samples was pyroglutamic acid, followed by pyruvic and citric acid. The organic acids were lower in Kochuzang from wheat flour than in other samples. The contents of succinic and fumaric acid were highest in Kochuzang prepared from sweet potato and were lowest in polished barley Kochuzang.

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Development of Microbial Bioassay for Detection of Pesticide Residues (미생물을 이용한 농약잔류 분석법 개발)

  • 백수봉;양창술;오연선
    • Korean Journal Plant Pathology
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    • v.10 no.4
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    • pp.297-304
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    • 1994
  • This study was carried out to develop bioassay for detection of pesticide residues in agricultural products by using the soil microbial isolates sensitive to pesticides. One hundred bacterial isolates and eighty five fungal isolates were obtained from soil and their sensitivity to 10 ppm of several pesticides was examined in vitro. Five bacterial isolates and three fungal isolates were found sensitive to organochloride fungicide and two fungal isolates sensitive to organocopper fungicide. Among these isolates, B46, B93 and F67 were tested to find out the difference in sensitivity according to the methods of fungicide treatment. All of the isolates were found sensitive to 10 ppm of organochloride fungicides mixed directly in PDA. But they were found insensitive to the fungicide mixed in PDA after filtering through membrane filter. In case of organocopper fungicide, the isolates were found sensitive only when it was treated in PDA. And their sensitivity showed difference among various kinds of organochloride fungicides. B46 and B93 were employed to check the possibility as the agent for detection of the pesticidal residues in twenty eight agricultural products including rice. It was found that all samples had not residues because the samples did not inhibit the growth of isolates. When organochloride fungicides were applied to the above products, it was possible to detect the residues in fruits and vegetables at the concentration of 10 ppm, but not in starch-rich grains. B46 and B93 were identified as Bacillus sp. according to their bacterial characteristics in culture.

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Effects of Drying Condition and Binding Agent on the Quality Characteristics of Ground Dried-Pork Meat Products

  • Choi, Yun-Sang;Ku, Su-Kyung;Park, Jong-Dae;Kim, Hee-Ju;Jang, Aera;Kim, Young-Boong
    • Food Science of Animal Resources
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    • v.35 no.5
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    • pp.597-603
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    • 2015
  • The purpose of this study was to investigate the influence of processing conditions (temperature and time) and binding agent types (glutinous rice flour, potato starch, bean flour, and acorn flour) on the physicochemical and sensory characteristics of ground dried-pork meat product. For this purpose, ground dried-pork meat product was produced by adding several binding agents at different drying temperatures and times. The drying time affected moisture content and water activity in all drying temperature. However, under the similar drying conditions, the extent of drying varied depending on the type of binding agents. The results of sensory evaluation for texture degree and overall acceptability indicated the following: overall, higher drying temperatures and longer drying time heightened the degree of texture, and the overall acceptability varied depending on binding agent type. Physicochemical and sensory characteristics were analyzed to determine any possible correlation. The results revealed a high correlation between moisture content, water activity, shear forces, and sensory evaluation (p<0.01). However, there was no correlation with respect to overall acceptability.

Production and Characterization of Fibrinolytic Enzyme: Optimal Condition for Production of the Enzyme from Bacillus sp. KP-6408 Isolated from Chungkook-jang (새로운 혈전용해 효소의 생성 및 특성: 청국장에서 분리한 Bacillus sp. KP-6408로부터 효소 생성의 최적조건)

  • 박인식;길지은;김기남
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.27 no.1
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    • pp.51-56
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    • 1998
  • A bacteium, KP-6408, capable of hydrolyzing fibrin was isolated from Chungkook-jang, which was possibly identified as a strain of Bacillus sp. The effects of culture condition and medium composition on the enzyme production were investigated. Among nitrogen sources tested, yeast extract was the most effective for the enzyme production, and the level of the concentration for the optimal enzyme production was 0.2%(w/v). For carbon sources, glucose was the best for the enzyme production with the level of 2.0%(w/v). The enzyme was maximally produced by cultivating the enzyme production with the level of 2.0%(w/v). The enzyme was maximally produced by cultivating the organism at the liquid medium of the initial pH 8.0 and temperature of 4$0^{\circ}C$. In Chungkook-jang fermentation, the enzyme was maximally produced when incubated at 35$^{\circ}C$ for 24 hrs using soybean as a solid medium. The addition of various rice starch to the soybean in Chungkook-jang fermentation lowered the enzyme production.

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Fermentation Characteristics of Takju Prepared with Lotus Leaf (연잎을 첨가한 탁주의 발효 특성)

  • Yoo, Ha-Na;Chung, Chang-Ho
    • Korean journal of food and cookery science
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    • v.27 no.5
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    • pp.577-587
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    • 2011
  • In this study, lotus leaf was added to a Takju (Korean milky rice wine) preparation to evaluate its effects on physicochemical and fermentation properties. For rapid saccharification Takju was stored at 25$^{\circ}C$ for 2 days and then temperature was switched to 18$^{\circ}C$ to mature the wine for 21 days. From the start of fermentation to 2-days, the pH of Takju decreased rapidly and acidity increased. Maltose, a byproduct of starch saccharification, increased for 2 days then rapidly decreased. Glucose fluctuated for 7 days and of the 21-days fermentation. The ethanol production rate was highest during the first 7 days, then slowed. Total viable yeast and lactic acid bacterial counts increased rapidly for 2 days and then decreased gradually thereafter. Leuconostoc spp. grew rapidly for 1 day and sharply disappeared with decreasing pH. DPPH radical scavenging activity was significantly higher for Takju prepared with lotus leaf than without. The overall acceptance of Takju tended to increase when it was prepared with lotus leaf.

Dynamic Rheological Studies on Mixtures of Hot Pepper-Soybean Paste and Xanthan Gum

  • Choi, Su-Jin;Yoo, Byoung-Seung
    • Food Science and Biotechnology
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    • v.16 no.1
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    • pp.146-149
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    • 2007
  • Dynamic rheological properties of hot pepper-soybean paste (HPSP) mixed with xanthan gum were evaluated at different gum concentrations (0.3, 0.6, and 0.9%) and fermentation times (12 and 24 week). Magnitudes of storage (G') and loss moduli (G") in the HPSP-xanthan gum mixture systems increased with an increase in frequency ($\omega$), while complex viscosity (${\eta}^*$) decreased. G' values were higher than the G" values over most of the frequency range (0.63-63 rad/sec), and were frequency-dependent. The dynamic moduli (G', G", and ${\eta}^*$) of the HPSP-xathan mixtures were lower than those of the control (0% gum). The differences between the dynamic moduli values at 12-week and 24-week fermentation decreased with increasing gum concentration, showing that xanthan gum can be used to stabilize and improve the viscoelastic rheological properties of HPSP. The G' value of the HPSP-xathan mixtures increased with an increase in gum concentration from 0.3 to 0.9%, whereas the G" decreased. The ability of xanthan gum to increase the elastic properties in the HPSP-xanthan mixture systems seemed to be the result of the incompatibility phenomena existing between xanthan gum and glutinous rice starch.

Quality Characteristics of Garaedduk Enriched with Mealworm (Tenebrio molitor) Powder (갈색거저리 유충 분말 첨가 가래떡의 품질 특성)

  • Nam, Hye Hyun;Sim, Ki Hyeon
    • The Korean Journal of Food And Nutrition
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    • v.34 no.3
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    • pp.272-288
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    • 2021
  • Mealworm is the most widely used edible insect in Korean traditional food. In this study, the quality characteristics and antioxidant activity of Garaedduk containing different proportions of powdered mealworm (0%, 3%, 6%, 9%, and 12%) were evaluated in order to enhance the utilization of mealworm. The results revealed that moisture content decreased while pH and starch elution increased, with increasing amount of mealworm. Furthermore, the amount of total amino acids, essential amino acids, and non-essential amino acids increased with increasing amount of mealworm. Regarding chromaticity, the L value decreased while the a and b values increased as the amount of mealworm increased. The addition of 6% mealworm showed slight differences in the pore size and surface smoothness as compared to plain Garaedduk. Texture, hardness, chewiness, and gumminess increased, but cohesiveness decreased with increasing amount of mealworm. The preference test evaluating the appearance, flavor, taste, texture, and overall preference showed that 6% mealworm additive group had the highest preference. In addition, antioxidant activity of the newly developed Garaedduk increased with increasing amount of mealworm. In conclusion, Garaedduk enriched with 6% mealworm showed promising results for developing rice cake with improved nutrition and antioxidant activity and excellent overall preference and quality.