• Journal of Powder Materials
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• v.2 no.2
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• pp.135-141
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• 1995

As the first step of study on fabrication of ceramic powders from phytoliths in rice, especially in rice husks, pulverization method of rice husks and the properties of milled rice husks were investigated. Impact methods, such as ball milling, were not meaningful for pulverizing elastic and thin fabric structure of rice husks. The most effective one was cutting method. In the present work, a rotating knife cutting method was applied to pulverizing rice husks. A 40-mesh screen was inserted under the rotating knives. The most portion of the milled powder was found in -50/+100 mesh section. Morphology of the milled rice husks revealed that the husks larger than 70 mesh were flake-like shape, at -70/+100 mesh section relatively equi-axed shape, at -170/+325 mesh section rod-like shape, and below 325 mesh section dust-like shape. Tap density of raw rice husks was about 0.1 $g/cm^3$, while those of milled rice husks were over $0.4 g/cm^3$. This meant that, for a given volume of reactor, raw material charge can be increased more that 4 times when using milled rice husks than unmilled one. True densities of unmilled and milled rice husks were higher than $1.4 g/cm^3$, and increased with decreasing milled sizes.

• Culinary science and hospitality research
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• v.22 no.3
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• pp.55-65
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• 2016

The purpose of this study was to determine the most appropriate ratio for burdock glutinous rice Dasik. Burdock glutinous rice Dasik was prepared with different levels of burdock powder (0, 3, 6, 9 and 12%) and the quality characteristics of burdock glutinous rice Dasik were analyzed. Moisture contents of burdock glutinous rice Dasik increased as the amount of burdock powder increased (p<0.001) compared to the control group. The L-value, a-value, and b-value of burdock glutinous rice Dasik showed a tendency to decrease compared to the control group. The sugar content of burdock glutinous rice Dasik increased (p<0.001) with the amount of burdock powder. The hardness and adhesiveness of the glutinous rice Dasik with burdock powder of 6% or less were decreased, but those with 9% or more burdock powder had higher hardness and adhesiveness than the control group. In addition, the cohesiveness, springiness, gumminess, and chewiness of glutinous rice Dasik with burdock powder increased compared to the control group. The DPPH free radical scavenging activity of the glutinous rice Dasik with 9% and 12% burdock powder were higher than that of the control group (p<0.001). In the sensory test of burdock glutinous rice Dasik, the samples added with 3% and 6% burdock powder gained higher preferences, but the evaluations of others were lower than that of the control group. The glutinous rice Dasik with less than 6% burdock powder was highly evaluated, so it is considered as the most appropriate sample.

• Culinary science and hospitality research
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• v.18 no.4
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• pp.222-232
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• 2012

The purpose of this study is Red Yeast Rice power is added to Roux, which is widely used as the liaison to make Brown Sauce, and the chemical and visual characteristics of the Brown Sauce made using the Red Yeast Rice power. Moisture content of Brown Sauce that included the Red Yeast Rice powder. Viscosity and turbidity of the Brown Sauce which included Red Yeast Rice powder. pH, Sugar value, and Reducing Sugar of the Brown Sauce which included Red Yeast Rice powder. The quantitative description analysis of the Brown Sauce showed that the strength of red color intensity, thickness, sour taste, bitter taste and grainess increased as the amount of the added powder increased, while the scorched flavor decreased. The overall result indicates that the addition of the Red Yeast Rice powder influenced the overall acceptability of the sauce, and it appeared that the 30% addition of the powder resulted in the optimal mechanical characteristics and enhancement of the acceptance of the sauce.

• The Korean Journal of Food And Nutrition
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• v.26 no.1
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• pp.101-108
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• 2013

This study investigated the functional nutrition of red yeast rice to added beurre mani$\acute{e}$ in the production of brown sauce. We added X to Y at levels of 0%, 5%, 10%, 15% and 20% and investigated the effects on the viscosity, water content, turbidity, pH, sugar level, reducing sugar, color, and sensory quality characteristics of the resultant brown sauce. The viscosity of Brown sauce was increased with increasing red yeast rice beurre mani$\acute{e}$ while water content and turbidity were decreased. pH was between 4.57~4.91. Sugar level and reducing sugar were increased with increasing red yeast rice powder content. L and a were increased with increasing red yeast rice powder content, and b was decreased. In sensory testing, visual appearance and flavor were highest for brown sauce preparations containing 15% and 20% X. Aftertaste and taste scored the highest for additions of 10% and 15%. For general preference, a 15% addition of X resulted in the highest score. Based on the results, it seems that red yeast rice powder, 15% red yeast rice powder added brown sauce has the highest the general preference.

• Journal of the Korean Society of Food Culture
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• v.27 no.2
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• pp.202-210
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• 2012

The purpose of this study was to bake sweet rice muffins with oak mushroom ($Lentinus$ $edodes$) powder. The process included substituting sweet rice flour for cake flour and adding oak mushroom powder. This study determined the optimal mixing conditions of oak mushroom muffins by adjusting the amounts of oak mushroom powder, whole eggs, and soybean oil. The mixing conditions for the oak mushroom muffins included 3 categories: oak mushroom powder (X1), whole eggs (X2), and soybean oil (X3) by Central Composite Design (CCD) which was optimized by Response Surface Methodology (RSM). Oak mushroom muffin formulation was optimized using rheology. Yellowness (p<0.001) and redness (p<0.05) displayed a linear model pattern, whereas lightness (p<0.05) was represented by a quadratic model. Among the sensory properties, variables that appeared to show significant values such as appearance (p<0.5), texture (p<0.5), and overall quality (p<0.5) were used to identify optimums. The result of mechanical properties showed significant values in gumminess (p<0.5) and chewiness (p<0.5). The numerical and graphical methods used in this study determined that the optimum formulation for oak mushroom powder sweet rice muffins was 8.75 g of oak mushroom powder, 235.95 g of whole eggs, and 19.93 g of soybean oil.

• Food Engineering Progress
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• v.13 no.2
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• pp.159-163
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• 2009

The pH, moisture, solid, total sugar, amylose, viscosity, line spread and color of Tarakjuk containing puffed rice powder were investigated. The pH of rice Tarakjuk was higher than that of puffed rice powder. Also, samples with whole milk powder were higher than fresh milk (p<0.05). The highest moisture contents, 84.56% was observed in rice Tarakjuk prepared with whole milk powder, while lowest 81.04% in puffed rice powder sample with fresh milk (p<0.05). Samples with lower moisture contents resulted in greater solid contents (p<0.05). Higher total sugar contents were noticed in cooked samples than uncooked ones, however no differences were found among cooked ones (p<0.05). Amylose contents of puffed rice powder Tarakjuk were higher than rice sample (p<0.05). The rice Tarakjuk showed higher viscosity and lower spreadability (p<0.05). Higher "L" value was observed in rice. Highest "a" values were shown in puffed rice powder and lowest value in rice with fresh milk (p<0.05). The "b" value tended to be similar to "a" value.

• Journal of the Korean Society of Food Culture
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• v.5 no.2
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• pp.207-215
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• 1990

In this study, the types and characteristics of rice cake, cookies were investicated in the rice grown area-Korea, Japan (Tokyo, Osaka), China (Hongkong), Thai (Bangkok, ChiengMai), Indonesia (Bali, Jakarta), and Philippine (Manila). 1. Rice cakes and cookies were made from rice powder and rice granule. Specially, there were two kinds of basic rice powder one was rice powder in dry and the other was rice juice grinded with water on the millstone. Rice juices were named in China, MeeChang, in Manila, Galapong, in Bangkok, rice powder. 2. The kinds and numbers of steamed rice cakes were the most available in all investicated area. In Hongkong, Bangkok, ChiengMai, and Manila, beatened or kneaded rice cakes could not be seen almost. Only in Hongkong and Bangkok, fried rice cakes were available, while in Japan, boiled rice cakes were not seen almost, and also baked rice cakes were not seen in Korea, Hongkong, Bali, Jakarta. 3. In the east-south Asian area, except rice and glutinous rice, coconut and palm fruits and banana were using in recipies of rice cakes and cookies. They gave soft and tender mouth feeling, white color, and good emulsifying status. 4. The kinds and numbers of rice cookies were the most available in Bangkok, but in Bali and Jakarta, the least. The cookies of Japan had similar texture and shape to rice cake while most of cookies in Hongkong were fried in oils. In Korea, the kinds and numbers of rice cookies were less than those of rice cakes.

• Korean Journal of Food Science and Technology
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• v.48 no.5
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• pp.474-478
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• 2016

Quality properties of pork restructured jerky manufactured using various concentrations of black rice powder were examined. The moisture contents and pH of samples increased with an increase in concentration of black rice powder. On the other hand, the protein and fat contents of samples decreased with an increase in concentration of black rice powder. Lightness, redness, and yellowness values of uncooked and cooked samples showed a downward trend with an increase in concentration of black rice powder. Water holding capacity and cooking yield of the samples containing 3% and 5% black rice powder were higher than those of the control and 1% black rice powder samples (p<0.05). Samples containing 3% black rice powder showed a lower shear force than that of the control (p<0.05). Sensory evaluation of color, flavor, tenderness, and overall acceptability were enhanced with an increase in concentration of black rice powder. These results show that supplementation added with black rice powder in pork restructured jerky enhances its quality properties.

• The Korean Journal of Food And Nutrition
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• v.6 no.3
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• pp.178-188
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• 1993

This research was attempted to investigate changes in physicochemical properties of rice extrudate with added ginger powder extruded by single screw extruder. Graphic three dimensional analysis on response surface regression was used to evaluate effects of extrusion variables on quality factors of the extrudate according to two independent variables, ginger consent 0∼12%, moisture content 14∼26%. The summarized results are as follows : 1) Regarding proximate composition of rice extrudate with added ginger powder, as ginger powder content of raw material Increased, crude tat, crude protein, crude ash and crude fiber increased, while soluble nitrogen free extract decreased. 2) Graphic three dimensional analysis on response surface regression was conducted for each dependent variable which revealed statistically significant relationship with independent variables, 0∼120A ginger and 14∼26% moisture content. Expansion ratio had a critical point as moisture content changed. As ginger and moisture content Increased, bulk density, break strength and water absorption Index Increased, while water solubility Index decreased. The predicted maximum degree of gelatinization in 6.15% ginger and 15.56% moisture content is 88.27%, and lightness decreased as ginger content Increased. According to the microstructure for the cross section of extrudate obsorbed with image analyzer, air cell number and perimeter revealed saddle point, meanwhile total area and fractarea of air cell had critical points as moisture content changed. In view of the results, quality of rice extrudate with added ginger powder was optimum when rice flour was fed to the extruder with 2∼7% singer powder and 15∼20% moisture content.

• Journal of Practical Agriculture & Fisheries Research
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• v.15 no.1
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• pp.45-52
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• 2013

This study was carried out to investigate the influence of black rice powder addition on quality attributes of cookies. The cookies was made with various black rice powder concentration(3%, 6%, and 9%). The specific volume of cookies didn't show significant difference, and the width determined by the water content in the dough was decreased with increasing content of black rice powder. The L value in the cookies was significantly the largest value in the control group. The a and b values were the highest in the 9% substituted sample group. According to the sensory evaluation of cookies, the scores of color, flavor, and texture were raised by the addition of black rice powder. Overall acceptance of 6% cookies showed higher value than that of the 3% and 9%.