• 제목/요약/키워드: rice bran oil

검색결과 160건 처리시간 0.024초

기름의 종류 및 첨가량을 달리한 구운 약과의 품질특성 연구 (Quality Characteristics of Baked Yackwa with Different Types and Amounts of Oils)

  • 장소영;박미정;이숙영
    • 한국식생활문화학회지
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    • 제28권5호
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    • pp.525-532
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    • 2013
  • This study aimed to find oils that can replace high-priced sesame oil. The quality of baked Yackwa containing different types of oils (rice bran, olive, or sesame oils) and amount of oils (30, 35, 40%) were investigated. The hardness of the baked Yackwa depended on the amount of oil, as more oil led to a softer texture of baked Yackwa. According to sensory evaluations, baked Yackwa with rice bran oil received the highest score in taste quality, with sesame oil receiving the second highest score. The flavor of baked Yackwa containing the rice bran oil was also better than other samples. In contrast, there were no significant differences in taste between other samples, including baked Yackwa containing all ingredients, 40% sesame oil, and 40% olive oil. The overall acceptance showed the highest score in baked Yackwa with rice bran oil (35%). In conclusion, rice bran oil (35%) is recommended as an oil ingredient for baked Yackwa.

수용액중에 함유된 석유화합물들의 흡착처리에 관한 연구 (Adsorption Treatment of Petroleum Oil on Aqueous Phase)

  • 이택혁;손병찬;이상범;김일한
    • 분석과학
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    • 제5권1호
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    • pp.1-5
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    • 1992
  • Amberlite XAD 고분자수지 및 고분자수지 대체흡착제인 rice bran, rice straw 그리고 sawdust에 대한 petroleum oil의 흡착량을 최저 흡착조건에서 뱃치법으로 측정하여 조사하였다. Rice bran과 rice straw에 대한 petroleum oil의 흡착량은 XAD계열수지의 흡착량의 약 50% 정도로 흡착성이 우수하였다. 또한 이들 대체흡착제의 흡착능을 증대시키기 위한 탄화시간은 $200^{\circ}C$, 30분이 최적 조건이었다. Sawdust의 경우에는 30% MeOH 매질에서는 흡착성이 매우 약한 반면 0.5M NaCl 매질에서는 XAD수지 흡착능이 약 1/2에 도달하였다. Rice bran과 rice straw는 외관상의 구조차이와는 관계없이 비슷한 흡착능력을 보였다. 따라서 rice bran과 rice straw들은 XAD계열 수지에 대한 대체흡착제로 충분한 흡착능력을 가지고 있는 것으로 보인다.

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미강유의 광산화와 항산화제의 방어작용 (Photo oxidation of Rice Bran Oil and Protective Action of Antioxidants)

  • 백태홍;이용국
    • 한국응용과학기술학회지
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    • 제4권1호
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    • pp.19-22
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    • 1987
  • To investigate the protective action of various antioxidants on the photooxidation of rice bran oil, it was irradiated with red and visible light in presence and absence antioxidants with or without sensitizer (methylene blue). 1. Rice bran oil with and without sensitizer in chloroform-ethanol (4:1, v/v) media was largely oxidized under visible light irradiation. on the other hand, rice bran oil without sensitizer was hardly oxidized under red light irradiation. 2. Rice bran oil with sensitizer was oxidized much faster than that without. And the absorbance of it irradiated with visible was increased more than that with red light. 3. The effectiveness of antioxidants on the rice bran oil photooxidation was same order as follows: Irradiation with visible light, no addition of sensitizer ${\beta}$-carotene > dl-{$\alpha}$-tocopherol > BHT > BHA Irradiation with visible light, addition of sensitizer ${\beta}$-carotene > BHT > dl-${\alpha}$tocopherol > BHA Irradiation with red light, addition of sensitizer ${\beta}$-carotene > BHA > BHT > dl-${\alpha}$-tocopherol From these results, we concluded that rice bran oil was largely oxidized under visible light irradiation, therefore it must be protected from photooxidative deterioration by the addition of antioxidants.

Blending Effect of Palm Oil on Physicochemical Properties of Rice Bran Oil

  • Yoon, Suk-Hoo;Kim, Sun-Ki;Teah, Yau-Kun;Kim, Kil-Hwan;Kwon, Tai-Wan
    • 한국식품과학회지
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    • 제18권5호
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    • pp.329-333
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    • 1986
  • Rice bran ell was blended with double fractionated palm olein (DF palm olein) to examine the cooking performance of blended oil. A blended oil made with 80% or higher rice bran oil and 20% or less DF palm olein passed the cold test, and had a cloud point of $-3^{\circ}C$. Blending of DF palm olein to rice bran oil lowered the smoke point, refractive index, and absorbancies at 232 and 268 nm of rice bran oil. Dielectric constant of oils was not affected by blending during heating. Blending of DF palm olein , however, increased the acids formation in rice bran oil, whereas it retarded polymer formation. The results of the analytical methods used in this study except dielectric constant measurement showed significant difference among the blended oils depending on the blending ratios.

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미강유를 이용한 효모균체 단백질의 특성 (Property of Yeast Cell Protein from Rice Bran Oil)

  • 안태영
    • 한국식품영양학회지
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    • 제3권1호
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    • pp.35-38
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    • 1990
  • For the purpose of the production of single cell protein from rice bran oil, yeast was isolating from soil. It was belonging to Candida albicans Species. These experiments were conducted to find out the property on yeast cell from rice bran oil Molecular weight for the main protein on yeast cell protein from rice bran oil separated by 1% SDS polyacrylamide gel electrophorosis was 22, 000.

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Performance and Emissions Characteristics of a Diesel Engine with Some Bio-Oil Fuels

  • La, Woo-Jung;Ju, Eun-Sun;Kim, Byong-Hwa;Cho, Ki-Hyun;Kim, Jong-Chun
    • 한국농업기계학회:학술대회논문집
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    • 한국농업기계학회 1996년도 International Conference on Agricultural Machinery Engineering Proceedings
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    • pp.359-368
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    • 1996
  • The performance and exhaust emissions of a diesel engine using light oil, heated, rice-bran oil , heated rice-bran oil treated with ultrasonic wave, used frying oil, use frying oil treated with ultrasonic wave, used frying oil, used frying oil treated with ultrasonic wave, methyl esters of rice-bran oil and used frying oil have been compared. All the fuels performed satisfactorily in a precombustion chamber-type diesel engine without injection pump recalibration or any engine modification at the range of engine speed from 1600 to 2800 rpm at its full load during a sort period , with the rice-bran oil and rice-bran oil treated with ultrasonic wave requiring somewhat preheating when ambient temperature was below 15$^{\circ}C$. General performance and emission characteristics of light oil and bio-oils were comparable , with the bio-oil based fuels giving very low SO$_2$ and lower smoke readings.

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COMBUSTION CHARACTERISTICS OF ESTERIFIED RICE BRAN OIL AS AN ALTERNATIVE FUEL IN A DIESEL ENGINE

  • Choi, S.H.;Oh, Y.T.
    • International Journal of Automotive Technology
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    • 제7권4호
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    • pp.399-406
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    • 2006
  • The smoke emission of diesel engines is being recognized as one of the major source of the air pollution problems. This study investigates the potential of esterified rice bran oil to reduce smoke emission as an alternative fuel for diesel engines. Because the esterified rice bran oil has approximately a 10.5% oxygen content, the combustion of the diesel engine improved and exhaust smoke decreased. Gas chromatography was used to analyze not only the total amount of hydrocarbon but also the amount of hydrocarbon components from $C_1$ to $C_6$ in the exhaust gas to determine an exact source responsible for the remarkable reduction in the smoke emission. The number of individual hydrocarbon($C_1{\sim}C_6$) as well as the total amount of hydrocarbon of esterified rice bran oil reduced significantly compared to that of hydrocarbon of diesel fuel.

Growth Performance of Lambs Fed Diet Supplemented with Rice Bran Oil as Such or as Calcium Soap

  • Bhatt, R.S.;Karim, S.A.;Sahoo, A.;Shinde, A.K.
    • Asian-Australasian Journal of Animal Sciences
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    • 제26권6호
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    • pp.812-819
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    • 2013
  • Forty two Malpura lambs (21 d old) were divided into three groups of 14 each consisting of 8 females and 6 males. Lambs were allowed to suckle their respective dams twice daily up to weaning (13 wks) and offered free choice concentrate and roughage in a cafeteria system. The lambs in control group were fed conventional concentrate mixture, in RBO group concentrate mixture fortified with 4% industrial grade rice bran oil and in Ca-soap rice bran oil (as in RBO group) was supplemented in the form of calcium soap. The concentrate intake decreased($p{\leq}0.05$) in RBO group as a result total dry matter, crude protein and metabolizable energy intake decreased compared to control whereas Ca-soap prepared from the same rice bran oil stimulated the concentrate intake leading to higher total dry matter, crude protein and energy intakes. The digestibility of dry matter ($p{\leq}0.05$), organic matter ($p{\leq}0.05$) and crude protein ($p{\leq}0.05$) was higher in RBO group followed by Ca-soap and control whereas no effect was observed for ether extract digestibility. Higher cholesterol ($p{\leq}0.05$) content was recorded in serum of oil supplemented groups (RBO and Ca-soap) while no effect was recorded for other blood parameters. Rice bran oil as such adversely affected and reduced the body weight gain ($p{\leq}0.001$) of lambs in comparison to control whereas the Ca-soap of rice bran oil improved body weight gain and feed conversion efficiency in lambs. Fat supplementation decreased total volatile fatty acids ($p{\leq}0.05$) and individual volatile fatty acid concentration which increased at 4 h post feeding. Fat supplementation also reduced ($p{\leq}0.05$) total protozoa count. Ca-soap of rice bran oil improved pre slaughter weight ($p{\leq}0.05$) and hot carcass weight ($p{\leq}0.05$). It is concluded from the study that rice bran oil in the form of calcium soap at 40 g/kg of concentrate improved growth, feed conversion efficiency and carcass quality as compared to rice bran oil as such and control groups.

가열식용유(加熱食用油)에 관(關)한 연구(硏究) ( I ) -대두(大豆), 채종(菜種), 미당(米糖), 옥수수, 들깨유(油) 유동성(流動性) 관(關)해서- (A Study on the Heated Edible Oils( I ) -Flow Properties of Soybean, Rapeseed, Rice bran, Corn and Perilla Oils-)

  • 김은애;신갑철;김행자;박재옥
    • Journal of Nutrition and Health
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    • 제10권3호
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    • pp.1-6
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    • 1977
  • Flow properties of heated edible oils, such as soybean, rapeseed, rice bran, corn and perilla oils, were measured with Maron-Belner type capillary viscometer. These oils were heated at $180{\pm}5^{\circ}C$ (general cooking temperature) for $5{\sim}20$ hours except soybean oils ($5{\sim}40$ hours). Fluidities of these heated oils except rice bran oil were decreased according to heating time and decreasing ratio of fluidity was outstanding after 15 hour heating in corn oil and 20 hours heating in soybean and perilla oils. All the oils examined in this experiments except rice bran oil showed non-Newtonian motion after 15 hour hinting at high shear stress and Newtonian motion at less than 10 hour heating. In the soybean oil non-Newtonian flow property was outstanding after 30 hour heating at $180{\pm}5^{\circ}C$. Rice bran oil exhibit characteristic flow property, that is, non heated rice bran oil has lowest fluidity but heated one has highest fluidity compared to other oils examined in this experiment. Change of fluidity with extension of heating time was not detected and non heated rice bran oil showed non-Newtonian motion.

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옥수수유의 산화안정성에 대한 미강 추출물의 효과 (Effects of Rice Bran Extracts on Oxidative Stability of Corn Oil)

  • 연제영;이선미;양진우;곽지은;김영화;정헌상;이준수
    • 한국식품영양과학회지
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    • 제45권10호
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    • pp.1513-1517
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    • 2016
  • 옥수수유의 산화안정성을 알아보고자 미강 추출물을 옥수수유에 첨가하여 저장기간에 따른 과산화물가, 공액이중산가 그리고 비타민 E 함량 변화를 조사하였다. 미강 추출물은 추출방법에 따라 USM(unsaponifiable matter of the rice bran), MEO(methanolic extract of the rice bran oil) 및 MEDR(methanolic extract of the defatted rice bran)로 분류한 3가지 추출물을 제조하였다. 과산화물의 경우 미강 추출물 중 MEDR은 저장 9일까지 BHT의 수준과 유사한 경향을 보였으며 다른 추출물보다 과산화물 생성속도가 느리게 진행되어 산화안정성이 증가하였다. 공액이중산가의 경우 MEDR은 저장 12일까지는 BHT와 비슷한 수준을 보이다가 저장 15일부터 급격히 높아짐을 알 수 있었다. 비타민 E의 경우 ${\alpha}$-토코페롤(T)과 ${\alpha}$-토코트리에놀(T3) 함량 변화는 저장 초기와 비교하여 USM은 약 85%, MEO는 약 67%, MEDR은 약 59%가 감소했지만, ${\gamma}$-T와 ${\gamma}$-T3의 함량 변화는 저장 초기와 비교하여 USM은 약 25%, MEO은 약 29%, MEDR은 약 15%로 ${\alpha}$-T와 ${\alpha}$-T3보다 감소율이 현저히 낮았다. 결과적으로 미강 추출물은 MEDR> MEO> USM 순으로 산화안정성이 증가하였으며 다산과 일품 품종 간에 유의적인 차이는 나타내지 않았다. 따라서 미강 추출물 중 MEDR은 천연 항산화제로 그 이용 가치가 있다고 판단한다.