• Title/Summary/Keyword: Ratio of moisture content

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Quality Characteristics of sprouted brown rice bread with an anionic alkali mineral complex solution BARODON® (다목적 고기능성 알칼리용액 BARODON®을 첨가한 발아 현미 식빵의 품질 특성)

  • 노숙령;조영자;최수일;이재경
    • Korean journal of food and cookery science
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    • v.19 no.3
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    • pp.295-299
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    • 2003
  • This study was carried out to investigate the effects of the addition ratio of BARODON® on the dough volume, moisture content, loaf volume and weight and the sensory characteristics of sprouted brown rice bread. The loaf volume and sensory characteristics of the bread with BARODON® were higher than those without. The moisture content and loaf weight of the bread with BARODON® were lower than those without. Although these results were irregular with increasing amounts of BARODON addition. The sprouted brown rice bread with 0.6% BARODON® gave the best loaf volume and overall acceptance, whereas those with 4.8% BARODON® had the best odor, color and mouthfeel. BARODON® will be very useful as a leavening agent for improving the overall quality of sprouted brown rice bread.

Study of Thermally Accelerating Aged Varnish Treated Insulating Paper (바니쉬 함침에 따른 절연지의 가속 열 열화특성에 관한 연구)

  • Kim, Ju-Han;Han, Sang-Ok;Lee, Sei-Hyun;Lee, Byung-Seong
    • Proceedings of the KIEE Conference
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    • 2005.07c
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    • pp.1983-1985
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    • 2005
  • This paper describes moisture content, dielectric strength and dielectric properties of thermally accelerating aged insulating paper as varnish treatment. Kraft, nomex paper were impregnated with diluted varnish, varnish and solvent were diluted in the ratio of 40wt%, in vacuum condition, and then completely dried. To analysis of papers were influenced by varnish treatment, we applied thermal stress, and then measured moisture content, dielectric strength and relative permittivity, $tan{\delta}$ as varnish impregnated papers.

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Quality Characteristics of Injeulmi Containing Different Ratios of Citrus Mandarin Powder (감귤분말 첨가량에 따른 인절미의 품질 특성)

  • Kim, Chul-Woong;Song, Eun
    • The Korean Journal of Food And Nutrition
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    • v.22 no.2
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    • pp.293-301
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    • 2009
  • The purpose of this study was to investigate the quality characteristics of Gamgyul-Injeulmi containing different ratios of Citrus mandarin powder(0, 3, 6, 9 and 12%). The moisture content of the control group was 45.37%. As the ratio of Citrus mandarin powder increased, moisture content decreased. The water holding capacity of glutinous rice flour with Citrus mandarin powder decreased gradually in proportion to the amount of Citrus mandarin powder added. An analysis of Hunter's color values for Gamgyul-Injeulmi indicate that the addition of Citrus mandarin powder leads to lower L value and higher a and b value compared to the control. Textural analysis of Gamgyul-Injeulmi showed that the hardness, cohesiveness, gumminess and chewiness increased as Citrus mandarin powder was added, whereas adhesiveness and springiness decreased. According to the sensory evaluation of Gamgyul-Injeulmi, as the ratio of Citrus mandarin powder was increased, the flavor, sweetness and hardness all increased. Gamgyul-Injeulmi with 6% Citrus mandarin powder was rated as the best in terms of color and for overall preference in the sensory evaluation.

Airtight Storage Characteristics of Rough Rice (벼의 공기 밀폐저장 특성)

  • Keum, D. H.;Kim, H.;Kim, D. C.
    • Journal of Biosystems Engineering
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    • v.25 no.1
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    • pp.33-38
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    • 2000
  • This study was performed to investigate airtight storage characteristics of rough rice using airtight flexible pve container. A storage test of rough rice of 4 tonnes was carried out to determine the changes of gas composition of air in the container, grain moisture content, air temperature and relative humidity , the presence of insects ,germination rate, crack ratio , fat acidity , 1000-kernel weight, and brown rice recovery over storage period of 5 months in Suwon. Concentration of oxygen was decreased from 20% to 16% and carbon dioxide was increased of from 0.03% to 1.6%. The grain moisture content was decreased from 14.4%(w.b) to 14.1%(w.b) for 5 months storage period . Insect population levels were low but these increased after 5 months storage. Most of insects were dead, Fat acidity increased from 7.5(mg KOH/100g) to 10.2(mg KOH/100g). Other storage factors such as germination rate, brown rice recovery and 1000-kernel , and 1000-kernel weight slightly decreased and crack ratio was slightly increased. Qualities of rough rice during 5 months storage period under hemetic air conditions were maintained fairly good considering the above changes of quality factors during storage.

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Study on the Determination of the Amount of Added Water for Rice Cooking by Extrusion Test of Cooked Rice (밥의 압출시험에 의한 취반가수량 결정에 관한 연구)

  • Min, Bong-Kee;Hong, Sung-Hie;Shin, Myung-Gon;Jung, Jin
    • Korean Journal of Food Science and Technology
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    • v.26 no.1
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    • pp.98-101
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    • 1994
  • The amount of added water for rice cooking was determined by extrusion test and sensory evaluation of cooked rice. The extrusion force was positively correlated with hardness and negatively correlated with moisture content and wetness of cooked rice. The extrusion force and moisture content of cooked rice were 57.9 kg and 62.3% respectively at the 'medium' wetness (neither too hard and dry nor too soft and watery) of cooked rice. The optimum water to rice ratio for the cooked rice haying 'medium' wetness was 1.46.

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Strength evaluation of air cured, cement treated peat with blast furnace slag

  • Kalantari, Behzad
    • Geomechanics and Engineering
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    • v.3 no.3
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    • pp.207-218
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    • 2011
  • This article describes laboratory research done on strength evaluations for stabilized samples made of tropical fibrous peat. The stabilizing agents used were ordinary Portland cement (OPC) as binding agent and blast furnace slag (BFS) as additive. Stabilized samples were tested for their strength through unconfined compressive strength (UCS) and California bearing ratio (CBR). Different dosage rates of OPC and BFS were used in trial and error experiments for the most effective combination for stabilized peat samples that were at their natural moisture content. Stabilized trial samples were air cured for 90 days. After detecting the most effective dosage rate in the trial samples, their values were used to prepare CBR samples at their optimum moisture content (OMC). CBR samples were then air cured from 1 to 90 days and tested under un-soaked and soaked conditions. The most effective dosage rate for the stabilized peat samples was found to be close to when 75% for OPC and 25% of BFS per total weight of OPC, and BFS. As an example, if 11.25% OPC, and 3.75% BFS are mixed with peat and compacted at their OMC and air cured for 90 days, stabilized peat will have an increase in CBR of 0.8% to 45 % for un-soaked and 20% for soaked conditions.

Effect of extrusion process variable on physicochemical properties of extruded rice snack with mealworm (압출성형 공정변수가 갈색거저리 애벌레(mealworm) 첨가 쌀 팽화 스낵의 이화학적 특성에 미치는 영향)

  • Cho, Sun Young;Jeong, Da Hye;Ryu, Gi Hyung
    • Korean Journal of Food Science and Technology
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    • v.49 no.4
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    • pp.444-452
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    • 2017
  • This study aims to investigate the physicochemical properties of the extruded rice snack with added the containing mealworm. Adding the mealworm addition enhanced protein and unsaturated fatty acid contents, which are insufficient in rice. As the extrusion process variables, the death temperatures and moisture content were set to at respective 130 and $140^{\circ}C$, and 20 and 25%, respectively. The expansion ratio increased as with death temperature, whereas the increased moisture content decreased. The nitrogen solubility index and protein digestibility index increased with the added mealworm content of mealworm increased. As mealworm content and death temperature, and moisture content increased, DPPH radical scavenging activity significantly increased but the rancidity decreased. As the result of this study, confirmed that the addition of mealworm to the extruded rice snack was the confirmed as the effective process to improve nutrition, and antioxidation. Also, death temperature and moisture content have an effect on softened the texture of extruded rice snack.

Optimum Environmental Conditions for Composting of Livestock Manure (축분의 퇴비화를 위한 최적 환경조건)

  • Rim, Jay-Myung;Han, Dong-Joon;Kang, Hyun-Jay
    • Journal of Industrial Technology
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    • v.13
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    • pp.3-17
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    • 1993
  • The composting process is a suitable to dispose the livestock manure in terms of resources recovery. However the performence of composting process is greatly affected by the environmental conditions such as characteristics of manure, type of the bulking agent, initial moisture contents, temperature, recycle and so on. The purpose of this study is to evaluate the optimum environmental conditions of composting process for livestock manures. The analytical results indicated that no bulking agent was necessary for the cow manure because of the proper C/N ratio. However the pig manure required a bulking agent since the pig manure had not only low in C/N ration but poor ventilation characteristics. In addtion, the initial miosture content for optimum composting appeared to be about 60%. The temperature control was also an essential factor to enhance the activity of thermophilic microorganisms in the laboratory composting unit. It was further found that the recycle of composts may contributed the completion of composting precess as well as C/N ratio reduction and moisture control.

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Quality characteristics of deep fat fried carrots depend on type of frying oil, frying temperature, and time of frying

  • Park, Hyun Su;Kim, Hyun Jung
    • Korean Journal of Food Science and Technology
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    • v.52 no.1
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    • pp.46-53
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    • 2020
  • Carrots were deep fat fried with sunflower oil (SO), palm oil (PO), and a blend of palm and sunflower oils (PSO with PO:SO as 2:8 or 4:6) at different temperatures (180 and 190℃) and lengths of time (0.5 to 2.5 min). The quality of deep fat fried carrots was determined by the moisture and fat content, color, conjugated dienoic acid (CDA), hydroperoxide, p-anisidine value, and fatty acid composition. The moisture content of fried carrots decreased with increasing frying time, while the fat content increased. The CDA and p-anisidine values of carrots fried with SO were higher than those fried with PO because of greater unsaturated fatty acids content in SO. PSO was a better choice than SO or PO for deep fat frying carrots in the aspects of oxidative stability and ratio of unsaturated to saturated fatty acids. These results indicate that the quality of deep fat fried carrots depends on the type of oil and frying temperature used, as well as the length of time.

The Use of Water Treatment Sludge as a Landfill Cover Material (정수장(淨水場) 슬러지의 매립장(埋立場) 복토재(覆土材)로의 활용(活用)에 관(關)한 연구(硏究))

  • Lee, Kee-chool;Oh, Joon-seong
    • Clean Technology
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    • v.8 no.2
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    • pp.67-76
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    • 2002
  • Dewatered sludge of 400,000t/y from water treatment plants in Korea is being disposed through landfill and ocean dumping. However, the disposal is posing more and more serious environmental problems at the same time not only because of landfill site shortage in municipal suburbs, but because of the concern it will contaminate the oceans. In this study, the research on utilizing the sludge dried by flash dryer as covering soil in the landfill sites was carried out to solve these problems on environmental affinity. Both dewatered and dried sludge were exposed to the natural condition and observed according to the atmospheric changes. An experiment of soil engineering characteristics of the dried sludge and tests on mixed sludge(silty sandy soil : dried sludge = 10:90 ~ 30:70) such as particle size distribution, liquid and plastic limit, moisture content, specific gravity and compaction test were carried out. According to the compaction test, the compaction was confirmed as the optimum water content ratio was observed in the condition of SM-silty sand of particle size distribution, NP of liquid and plastic limit, 101.4% of moisture content, 2.04~2.12 of specific gravity. The results showed that dried sludges mixed with at least 30% of natural soil could be used as daily covering soil in the landfill sites.

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