• Title/Summary/Keyword: 흡유율

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Effect of black rice flour replacement on physicochemical, textural and sensory properties of Yackwa (흑미가루를 첨가한 약과의 특성)

  • Lee, Kyong-Ae
    • Korean Journal of Human Ecology
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    • v.15 no.4
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    • pp.669-674
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    • 2006
  • In this study the properties of Yackwa partially replaced wheat flour with black rice flour were examined in the three factors: the physicochemical, the textural and the sensory. When the amount of black rice flour increased, dehydration and oil absorption of Yackwa decreased while frying it. The color of black rice flour Yackwa was darker yellowish than that of wheat flour Yackwa. When black rice flour was added more in making Yackwa, the results are as follows: first, its hardness increased, second, the external and internal color of Yackwa got significantly darker, finally, its greasiness decreased. As a result, up to 20% of wheat flour may be replaced with black rice flour without diminishing acceptability.

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Cooking Characteristics of Emulsifier-containing Oil -Degree of Oil Absorption and Spattering During Cooking, and Standard Recipe for Fried Foods- (일반 식용유와 기능성 식용유의 조리 특성 비교 -흡유율, 조리시 튀는 정도, 표준 조리법 작성을 중심으로-)

  • 문수재;오혜숙;이명희
    • Korean journal of food and cookery science
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    • v.12 no.1
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    • pp.99-107
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    • 1996
  • The cooking characteristics of Hicook with lecithin and GMS as emulsifier were examined for effect on the reduction of oil levels in fried foods. Hicook and soybean oil were used in stir-frying and pan-frying, and in case of Hicook the weight of oil absorbed and spattered during cooking were significantly lower than in case of soybean oil. Next this study attempt to standardize the recipe for preparation of selected Korean foods, especially in regards of the amount of oil used during cooking. The foods studied were all used frequently in Korea, they inculded stir-fried vegetables, stir-fried rice, and pan-fried fish and soybean curd. The results showed that Hicook, even in a half amount, made it possible cooking food with good properties, and calorie content of cooked foods could be lowered considerably. The trained panelists evaluated sensory characteristics of foods, flavor, appearance, and overall acceptability. Sensory qualities of food prepared with Hicook were highly acceptable, and rated better than controls in flavor and overall acceptability. But because stir-fried food was accepted greasy and oily in customarily, the appearance was rated lower than comtrol. In summary, application of hicook offers means of lowering fat levels while keeping sensory quality good. The emulsifier in Hicook is responsible for reduction of oil content and improvement of quality of fried foods.

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Characterization and assessment of the dolomite powder for application as fillers in the marble-type ore (대리암형 백운석의 분체 특성과 충전재로서의 응용성 평가)

  • Noh, Jin-Hwan;Lee, Na-Kyoung
    • Journal of the Mineralogical Society of Korea
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    • v.20 no.2 s.52
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    • pp.71-81
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    • 2007
  • The marble-type dolomite from the Jasung Mine, which was farmed by duplicated affects of contact metamorphism and subsequent hydrothermal alteration, corresponds to a high-purity dolomite ranging up to above 98wt.% in dolomite contents. The dolomite contain minor impurities such as quartz, muscovite, and pyrite. It is characteristic that the dolomite is fairy Fe-rich corresponding to 0.4 wt.% due to the presence of pyrite of possible hydrothermal origin. The dolomite is nearly white-colored and constituting with subhedral crystals ranging $0.35{\sim}0.46mm$M in size, forming equigranular texture. Compared to the typical high-Ca limestone from the Pungchon Formation, the powder characteristics of dolomite is rather superior in milling efficiency, yields of fine particles, and size distribution. In addition, except for iron contents, the dolomite powder is no less superior than the limestone in quality and characteristics as fillers with respects to not only whiteness, oil absorption, and specific surface area but also shape characters such as elongation ratio, aspect ratio, and sphericity. This good characteristics of dolomite powder seem to be originated basically from comparatively higher grade and crystallinity of dolomite. Higher iron contents and the presence of sulfides prevents the dolomite from application for uses by thermal treatment, except for metallic manufacture. However, if proper ore separation procedure is available, the dolomite can be sufficiently utilized as substitutes for high-Ca limestone in most fields of filler industries.

Quality Characteristics of Korean Pan-fried Food (Jeon) Added with Lactic-fermented Rice Flour (유산발효 쌀가루의 혼합비율에 따른 전(煎)의 품질특성)

  • Chang, Young-Eun;Kim, Jin-Sook;Lee, Ji-Hyun;Kim, Kyung-Mi;Kim, Gi-Chang
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.43 no.6
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    • pp.868-876
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    • 2014
  • This study was performed to investigate the effects of lactic-fermented rice flour on the quality characteristics of pan-fried food (Jeon). Pan-frying flour containing 5~20% lactic fermentation rice flour mixture was prepared. In rapid visco analyzer examination, peak viscosity, trough, final viscosity, breakdown, and setback of the lactic-fermented rice flour mixture were lower than those of rice flour or wheat flour. The L-value (lightness) of Jeon decreased with increasing the ratio of lactic-fermented rice flour. On the other hand, a-value (redness) and b-value (yellowness) increased with increasing ratio of lactic-fermented rice flour. Texture profiles showed that Jeon prepared with lactic-fermented rice flour mixture had higher springiness and gumminess than 100% rice flour. The oil absorptions of Jeon prepared with 100% rice flour and 20% lactic-fermented rice flour were 7.5% and 6.33%, respectively. For digestive properties, Jeon prepared with lactic-fermented rice mixture showed a greater amount of rapidly digestible starch and lower amount of slowly digestible starch. In the sensory evaluation, Jeon prepared with lactic-fermented rice mixture showed higher scores for appearance, flavor, and taste than others (rice flour and wheat flour). Especially, Jeon prepared with 10% lactic-fermented rice mixture showed the highest overall preference. In conclusion, the results demonstrate that lactic-fermented rice flour may prove quite useful as a pan-frying flour with desirable qualities properties.