• Korean Journal of Medicinal Crop Science
• /
• 제18권1호
• /
• pp.1-8
• /
• 2010

Inonotus obliquus is one of the immune-regulatory substances and is recognized to play the role in the metabolic process of inflammation, allergy and immuntiy. The purpose of this study was to evaluate the effects of water extracts of Inonotus obliquus (IOW) on the liver lymphocyte immune function in the Sprague-Dawley male rats treated with carbon tetrachloride ($CCl_4$) to induce liver damage. Rats were fed with each experimental diet and water for 4 weeks. We found that effects of IOW on interferon-gamma (IFN-$\gamma$), signal transducer and activator of transcription 1 (STAT1), phospho-signal transducer and activator of transcription 1 (pSTAT1) and GATA-binding protein 3 (GATA-3) were decrease in vivo. Interleukin-4 (IL-4), STAT6, pSTAT6 and T-box expressed in T-cells (T-bet) decreased significantly lower in $CCl_4$+IOW group than the $CCl_4$ group. Our data indicated that cytokine protein production were increased in $CCl_4$ group and $CCl_4$+IOW group. As a result of this study, we assume that IOW fed could regulate the immuno-modulating functions through regulate the cytokine production capacity activated by liver damage.

• Korean Journal of Food Science and Technology
• /
• 제22권1호
• /
• pp.99-104
• /
• 1990

The effects of concentrations of sulfur dioxide (0.16-0.20%) and steeping times (25-50hr) at $52^{\circ}C$ on the changes in pH of steep water and weight and volume of corn and starch properties were investigated. The pH of steep water increased and remained constant after steeping time of 20 hours. The degree of weight or volume gain decreased as the concentration of sulfur dioxide increased. The protein content of starch increased as the concentration of sulfur dioxide increased. Water·binding capacity of starch showed the highest value at the steeping time of 35 hours. Swell ins power and solubility decreased as cocentration of sulfur dioxide and steeping time increased. The initial pasting temperature and peak viscosity were increased and decreased, respectively, as the concentration of sulfur dioxide increased. At the same concentration of sulfur dioxide, the peak viscosity was increased and then decreased. Viscosity of starch in sodium hydroxide solution tended to decrease as the concentration of sulfur dioxide and sleeping time increased. The gel volume of starch in 3M KSCN solution was not affected by concentration of sulfur dioxide and steeping time.

• Journal of the East Asian Society of Dietary Life
• /
• 제23권6호
• /
• pp.760-767
• /
• 2013

This study investigated the quality of noodles containing different amounts of collagen powder. Noodles were prepared at ratios of 1, 3, 5 and 7% collagen power based on flour weight. The water binding capacity of the collagen powder was higher than that of flour. The rate of weight increase and volume increase of the noodles as well as the pH and turbidity of the soups were significantly increased with increasing amounts of collagen powder. The noodles showed decreased L and a values, and increased b values with increasing collagen powder in the flour composite. Hardness, springiness and chewiness of cooked noodles increased significantly with the increase in collagen powder content. cohesiveness and brittleness decreased with increasing amounts of added collagen powder. DPPH radical scavenging activity was improved significantly the addition of the collagen powder. Finally sensory evaluation results indicated that the noodles containing 1, 3% collagen powder had higher quality as compared to the other samples. Overall the results suggest that collagen powder is effective for improving the appearance and texture of noodles.

• Culinary science and hospitality research
• /
• 제24권3호
• /
• pp.1-14
• /
• 2018

The purpose of this study was to determine the optimization mixing ratio of wheat sprout powder (WSP) and hemicellulase for the preparation of white pan bread. Using a response surface methodology, independent variables were WSP and hemicellulase. Dependent variables were physicochemical properties, antioxidant properties and sensory evaluation. Water binding capacity of dough increased with increasing WSP. Color value showed positive correlations with WSP. L value decreased and a, b values increased as WSP increased. The adjusted determination coefficient of texture analysis was calculated to be 0.7230~0.9446 having the p-value less than 0.1. Specific volume of bread showed a positive correlation with hemicellulase and a negative correlation with WSP. DPPH radical scavenging activity and total polyphenol were represented by a linear model and showed positive correlations with WSP. Sensory evaluation were represented by a quadratic model. In conclusion, the optimal formulation for WSP added bread, as assessed by numerical and graphical optimization methods, was WSP 2.36%, hemicellulase 0.069% per wheat flour 100 g. The above results indicate that WSP can be used as health-oriented material in the bread industry. This is also expected to meet demands of consumers who are in the pursuit of healthy food.

• Journal of the East Asian Society of Dietary Life
• /
• 제7권4호
• /
• pp.519-526
• /
• 1997

Physicochemical properties of potato starches with degree of substitution of 0-0.2645 hydroxypropylated with propylene oxide were examined. Hydorxypropyl group content of the starch was proportional to propylene oxide concentration. Water binding capacity increased but pH decreased with the increase of degree of substitution. Blue value and iodine absorption property decreased with the increase of hydroxypropylation. Differential scanning calorimeter showed that hydroxypropylation lowered the gelatinization temperature of the starch. Relative crystallinity in X-ray diffraction patterns decreased and starch granule observed by scanning electron microscopy was destroyed by hydroxypropylation. This result implied that high level hydroxypropylation affected the crystal region as well as amorphous region of starch.

• Korean Journal of Food Science and Technology
• /
• 제9권2호
• /
• pp.138-143
• /
• 1977

Physicochemical properties of buckwheat starch were investigated. Starch granules were in the range of $4.3{\sim}11.4$ microns in size, the average being 7.8 microns. The starch had a water-binding capacity value of 103.7%, blue value of 0.35 and amylose content of 25%. The initial and final gelatinization temperatures were $61^{\circ}$ and $65^{\circ}C$, respectively. Amylograph data showed that the starch had an initial pasting temperature of $64.5^{\circ}C$. The kinetic study of crystallization of buckwheat starch during aging at $21^{\circ}C$ suggested that the mechanism of starch crystallization is instantaneous nucleation followed by rod-like growth of crystals.

• Applied Biological Chemistry
• /
• 제27권4호
• /
• pp.252-258
• /
• 1984

Physicochemical properties of arrowroot starch, which was adjusted to 18, 21, and 24% moisture and heated at $100^{\circ}C$ for 16hr, were investigated. X-ray diffraction pattern was changed from C- to A-pattern upon treatment(24% moisture). The swelling powere and solubility decreased by heat-moisture treatment. The treated sample was gelatinized at higher temperature than untreated one. Water-binding capacity was drastically increased as the moisture level was decreased. Amylograph hot paste viscosities were decreased upon treatment.

• Journal of the Korean Society of Food Science and Nutrition
• /
• 제22권1호
• /
• pp.40-47
• /
• 1993

Gelatinization properties of the air-dried sediment of cowpea were investigated. The water-binding capacity of cowpea flour was drastically increased over the temperature range of 52~55$^{\circ}C$. The percent transmittance of flour suspension was linearly increased at temperature between $65^{\circ}C$ to 75$^{\circ}C$. The gelatinization temperature determined by differential scanning calorimetry was 63.4~76.$0^{\circ}C$. Cowpea flour showed a single-stage of swelling and a low solubility pattern. The minimum moisture content required for the gelatinization was 37.0% . The amylograph peak viscosity was greatly influenced by concentration of the flour, but was not affected by heating temperatures (85~94$^{\circ}C$) at a given concentration. The 20 min height and cold viscosity at 3$0^{\circ}C$ at a fixed concentration was negatively correlated (p<0.05) with heating temperatures.

• Korean Journal of Food Science and Technology
• /
• 제38권3호
• /
• pp.378-384
• /
• 2006

Intrinsic viscosity of starch irradiated with Co-60 (0.25-9.1 kGy) significantly decreased, and swelling power and solubility measured at $80^{\circ}C$ linearly increased with increasing irradiated dose. Radiation treatment up to 1 kGy increased amylose content of starch. Water-binding capacity increased rapidly up to 3 kGy. Peak viscosity of irradiated starches by Rapid visco Analyser and Visco/amylo/Graph indicated that the decrease in peak viscosity was dose-dependent. Gamma irradiation showed no effect on endothermic temperatures of irradiated starches, but decreased endothermic enthalpy with increasing dose level. Viscosity of starch autoclaved at $120^{\circ}C$ and air-dried significantly decreased with increasing irradiation dose. Resistant starch content slightly decreased upon irradiation.

• Korean journal of food and cookery science
• /
• 제29권6호
• /
• pp.741-747
• /
• 2013

This study was carried out to investigate the quality characteristics of roll mill, jet mill Hericium erinaceus (HE) powders and seasonings using them (RPS and JPS). Water binding capacity of the jet mill HE powder(JP) was higher than that of roll mill HE powder(RP). The reduction of particle size resulted in the increases of specific surface area and JP showed smaller particle size than RP. $L^*$ of JP was significantly higher than that of RP. In sensory evaluation, the color and the flavor of seasoning showed on significant difference. Control and JPS got significantly high scores in 'Overall Acceptability' than RPS. Based on the results in this study, JPS is considered to have potential to be developed commercially as seasoning.