• 한국식품과학회지
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• 제43권3호
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• pp.291-302
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• 2011

제조 조건 및 저장 기간에 따른 유채유의 품질을 측정하기 위하여 전자코로 유채유의 향기패턴을 분석하였고 GC및 GC-MS를 이용하여 휘발성분을 분리 동정하였다. 다양한 조건으로 제조된 유채유는 $17^{\circ}C$ 암소에 저장하여 시료로 이용하였다. GC-MS 분석 결과 hydrocarbon류 4종, furan 및 그 유도체류 1종, ketone류 3종, acid류 1종, benzene류 3종, aldehyde류 12종이 분리 동정되었다. 저장기간이 증가할수록 산패에 의한 화합물인 hexanal, 2-heptenal, 2,4-heptadienal의 양이 증가하였으나 배전조건에 따른 경향은 보이지 않았다. 전자코 분석 결과는 판별함수분석(DFA)을 이용하여 나타내었고 이는 DF1값의 영향을 많이 받았으며 품질 변화가 많이 일어날수록 DF1값이 음의 방향으로 이동하였다. 배전 온도에 의한 영향을 알아보기 위해 $150-240^{\circ}C$에서 20분간 볶은 후 착유한 유채유의 경우 고온일수록 DF1값이 음의 값을 나타내었으며 신선한 유채유뿐 아니라 저장 한 시료도 비슷한 결과를 나타내었다. 배전 시간에 따른 유채유의 향기 변화를 알아보고자 $240^{\circ}C$에서 10-30분간 열처리 하였을 경우 배전 시간이 증가함에 따라 DF1값이 음의 값을 나타내었다. 저장기간이 증가함에 따라 DF1값은 감소하였으며 특히 0일과 2일, 20일과 24일에DF1값의 변화량이 컸다.

• 한국작물학회지
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• 제47권
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• pp.175-185
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• 2002

Rapeseed(Brassica napus L.) is an important oil crop as a vegetable oil, concentrated feed and industrial materials. The name "canola" was registered in 1979 by the Western Canadian Oilseed Crushers Association to describe "double-low" varieties. Double low indicates that the processed oil contains less than 2% erucic-acid and the meal less than 3mg/g of glucosinolates. Today annual worldwide production of rapeseed is approximately 35 million tons on 24 million hectares. China accounts for 33% of the world production and the European Economic Community for nearly 32%. Canola ranks 3rd in production among the world's oilseed crops following soybeans, sunflowers, peanuts and cottonseed. The recent advances in genomics and in gene function studies has allowed us to understand the detailed genetic basis of many complex traits, such as flowering time, height, and disease resistance. The manipulation of seed oil content via transgene insertion has been one of the earliest successful applications of modern biotechnology in agriculture. For example, the first transgenic crop with a modified seed composition to be approved for unrestricted commercial cultivation in the US was a lauric oil, rape-seed, grown in 1995. There were also some significant early successes, mostly notably the achievement of 40% to 60% lauric acid content in rapeseed oil, which normally accumulates little or no lauric acid. The name "$\textrm{Laurical}^{TM}$" was registered in 1995 by Calgene Inc. Nevertheless, attempts to achieve high levels of other novel fatty acids in seed oils have met with much less success and there have been several reports that the presence of novel fatty acids in transgenic plants can sometimes lead to the induction of catabolic pathways which break down the novel fatty acid, i.e. the plant recognizes the "strange" fatty acid and, far from tolerating it, may even actively eliminate it from the seed oil. It is likely that, in the future, transgenic oil crops and newly domesticated oil crops will both be developed in order to provide the increased amount and diversity of oils which will be required for both edible and industrial use. It is important that we recognize that both approaches have both positive and negative points. It will be a combination of these two strategies that is most likely to supply the increasing demands for plant oils in the 21st century and beyond.ant oils in the 21st century and beyond.

• Journal of Biosystems Engineering
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• 제33권6호
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• pp.390-395
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• 2008

Current high oil price and the agreement on global climate change prevention have increased worldwide investment and research on renewable energy. In Korea, development of a rapeseed dryer for bio-diesel production has been started in 2007. Usually, rapeseeds are harvested in early summer, because rice cultivation is followed right after rapeseed harvesting. Early harvest and bad summer results in highly moistured rapeseed and development of artificial drying system is required to dry great amount of rapeseed that couldn't be processed by sun drying alone. The rapeseed dryer was modified from an existing circulation type grain dryer. Modification of the dryer was performed with the aid of CFD simulation. Drying test showed that drying rate of rapeseed was 1.51%/h and germination rate reduction was 4.5%p for the drying temperature of $60^{\circ}C$.

• Asian-Australasian Journal of Animal Sciences
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• 제13권4호
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• pp.506-510
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• 2000

This experiment was to determine the usefulness of gum safflower phospholipid as a feed ingredient. Forty female broiler chicks were divided into four groups and fed experimental diets containing following fats and oils; beef tallow (Tallow), the blend of safflower oil and palm oil (SP-oil), gum rapeseed phospholipid (Rap-PL), or gum safflower phospholipid (Saf-PL) for 21days. There were no differences in growth performances among the treatments. Abdominal fat weight tended to be reduced in the chicks fed. phospholipids. The activity of hepatic acetyl-CoA carboxylase was significantly reduced in the Rap-PL and Saf-PL as compared to that of Tallow. Feeding dietary phospholipids resulted in a slight reduction in total fat and triglyceride contents in the breast and thigh muscles. In addition, total fat and triglyceride contents in the thigh muscle were significantly decreased by dietary Saf-PL as compared to those of Tallow. These results suggested that dietary gum phospholipids, either from rapeseed or safflower, had desirable effects of lowing abdominal and muscle fats, and could be used as a feed ingredient for broiler diets.

• Journal of Plant Biotechnology
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• 제37권3호
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• pp.319-326
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• 2010

화석에너지의 고갈과 지구 온난화 현상으로 인해 재생 가능한 식물자원으로부터 바이오에너지를 얻고자 하는 관심이 높아지고 있다. 이에 바이오디젤의 원료로 사용 되기 적합한 형질전환이 된 유채를 개발하기 위한 첫 단계로 한국 고유 유채 품종을 이용한 형질전환 체계를 구축하였다. 내한, 영산, 탐미, 한라 유채의 종자를 분양 받아 지방산 분석을 실시한 결과, 종자의 약 32-40% 식물성 오일이 포함되어 있었고, 그 중 올레인산의 함량은 60mole% 이상 존재하는 것으로 확인되었다. 그 중 오일 함량 및 올레인산 함량이 높고, 형질전환 효율이 비교적 높은 한라 유채품종이 그리고 $\beta$-glucuronidase (GUS)와 phosphinothricin acetyltransferase (PAT) 유전자가 포함된 pCAM-BIA3301 벡터가 도입된 Agrobacterium tumefaciens GV3101균주가 형질전환에 사용되었다. 형질전환이 된 유채 식물체는 제초제에 대한 내성, PCR을 이용한 PAT 유전자의 도입 여부 및 GUS 활성 분석을 통하여 선별하였다. 그 결과 한라 유채의 경우, 10. 4% 형질전환 효율을 보였고, 제초제 저항성이 다음 세대 ($T_1$ 식물체)로 안정되게 유전됨을 확인하였다. 이러한 연구는 바이오디젤 원료로 사용될 다양한 유채 품종에 교배를 통해 제초제 저항성 유전자를 쉽게 도입할 수 있는 가능성을 제시하였다.

• 한국식품조리과학회지
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• 제4권1호
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• pp.27-32
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• 1988

탈검제로 인산 및 초산, 구연산, 수산, 질산, 붕산 등 6종을 평지씨 기름과 대두유에 적용시킨 결과 수산을 사용하여 인산과 거의 동일한 탈검 효과를 얻을 수 있었다. 즉, 평지씨 기름에서 85% 인산 처리군과 5.10% 수산 처리군의 탄산유내의 잔류 비누물질과 인함량, 탈색유에서의 색상, 탈취유의 과산화물값, trans 지방산 함량 등은 유사한 결과를 나타내었다. 대두유에서도 동일한 결과를 얻었으므로 탈검제로서 인산 대신 수산을 사용할 수 있음을 확인하였다. 한편 85% 인산처리군과 10% 수산처리군으로부터 얻어진 폐수를 분석한 결과 특히 BOD, COD 등에서 현격한 차이를 보였으며 침전분리 및 화학처리한 결과 인산 처리군은 수산 처리군에 비하여 처리시약 요구량 및 처리시간이 각각 3배, 1.7배로 차이가 극심하였다. 따라서 이들 식물성 기름에서 인산대신 수산을 사용하여 동일한 탈검효과를 얻을 수 있었을 뿐만 아니라 폐수 처리도 개선할 수 있었다.

• 한국응용과학기술학회지
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• 제29권1호
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• pp.81-87
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• 2012

The biodiesel production characteristics in a pulsed-corona plasma reactor has been investigated through parametric tests. Transesterification of rapeseed oil together with camelina oil was done with the change of such variables as voltage of power, molar ratio, KOH catalyst and temperature. The energetic electrons emitted from pulsed-corona plasma has contributed to the enhancement of yield on rapeseed oil in short time (15 min). The higher yield on camelina oil was observed in 5 min. The optimal parameters were shown as the voltage of 23 kV, the molar ratio of 5/1, the content of KOH catalyst of 0.6 wt% and the temperature of $28^{\circ}C$ under the rotating rate of spark gap of 900 rpm.

• Asian-Australasian Journal of Animal Sciences
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• 제32권6호
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• pp.767-775
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• 2019

Objective: The purpose of this study was to evaluate the effect of rapeseed and linseed oil supplementations on performance and meat quality of lambs. Methods: The experiment was conducted on 18 growing (100-day-old) lambs of $19.7{\pm}1.9kg$ live weight, assigned to 3 groups of 6 animals each. Control lambs were fed meadow hay and concentrate alone. Experimental animals additionally received rapeseed or linseed oils at a dose of 50 g/d. The lambs were slaughtered at an average body weight of $35.7{\pm}0.5kg$. Results: The dressing percentage was higher in lambs fed rapeseed oil. Total saturated fatty acids (SFA) and C15:0, C16:0, C17:0, C21:0, C24:0 were lower in longissimus dorsi muscle (MLD) in lambs fed linseed oil. Supplementation of diet with linseed oil decreased concentrations of total monounsaturated fatty acids and C16:1, C17:1, C18:1 cis-9 in MLD. The concentrations of n-3 polyunsaturated fatty acids (PUFA) and C18:3 n-3, C20:5 n-3 in MLD were higher in lambs fed linseed oil than in other groups. Oils supplementation to diets resulted in increased concentration of C22:6 n-3 in MLD. The inclusion of linseed oil into the diet increased the contents of total PUFA, n-3 PUFA and C18:3 n-3, C20:5 n-3, C22:6 n-3 in semitendinosus muscle in comparison to control. A tendency towards a lower n:6/n:3 ratio in MLD was observed when lambs were supplemented linseed oil. Conclusion: The supplementation of linseed oil to diets seems to reduce the concentration of SFA and increase the concentration of n-3 PUFA. The n-6/n-3 ratio is an important nutritional factor, and its value has been favorably decreased below 2, thereby achieving an important target related to human health. Due to these changes carcass fatty acid profile was improved, and so enhanced lamb meat healthy properties.

• 한국식품영양과학회지
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• 제23권3호
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• pp.409-413
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• 1994

This fundamental study was undertaken to evaluate the nutritional value of Canola rapeseed meal which has been increasingly used as a by-product with the demand for the food oil resource. To compare the nutritive values among rapeseed meal and soybean meal, two experiments were carried out by using rats. One was a digestibility test of rapessed meal and the other was the growth rate of rats for 21 days. The chemical compositions , blucosinolate and amino acids of defatted repeseed meal and defatted soybean meal were analyzed. After one week feeding, nitrogen excretion in rats was measured to study FER, PER , TD , BW , and NPU of the meals. The amount of crude proteins in defatted rapeseed meal and defatted soybean meal were 45.5% and 37.9%. The glucosinolate content of defatted rapeseed meal was 0.04% . The body weight gain of defatted rapeseed meal was not signficantly different from that of defatted soybean meal (p>0.01). After one week feeding, there was no significant differencess in organ weight and serum components between two groups(p>0.01). It was presumed that the rapeseed meal has enough possibility for developing food to use as a protein source like a soybean meal protein. However, more careful experiments are needed to clarify the nutritional value of rapeseed meal of Canola since the lipids composition of blood tended to be different when the rapeseed meal and soybean meal were used.

• 한국식품과학회지
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• 제42권6호
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• pp.699-704
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• 2010

유채유에 감광제나 금속이온을 첨가하거나 UV처리를 하였을 때 어떠한 차이가 있는지 알아보기 위하여 MS-전자코를 이용하여 분석하였다. 유채유를 저장하였을 때 저장기간이 증가함에 따라 지방의 품질이 변화되면서 휘발성분이 증감하였는데 판별함수분석(DFA) 결과 DF1값의 영향을 받았으며 품질 변화가 많이 일어날수록 DF1값이 음의 방향으로 이동하였다. 암소에 비하여 UV를 처리하였을 때가 오히려 DF1값의 변화 폭이 크게 나타났다(DF1 $r^2$=0.9481 F=307.07). 실온(17, $26^{\circ}C$)보다는 냉장온도($4^{\circ}C$)에 보관할 때 휘발성분의 변화가 적게 일어났다. 또한 자외선 처리 유무와 온도를 달리 저장할 경우 온도에 의한 영향에 비해 자외선에 의한 영향이 크게 나타났다. ${\gamma}$DF1 값이 암실에서는 각각 $4^{\circ}C$의 경우 0.099, $17^{\circ}C$에서 0.187, $26^{\circ}C$에서 0.278값을 나타냈고 UV 처리 구에서는 각각 $4^{\circ}C$에서 0.554, $17^{\circ}C$는 0.558, $26^{\circ}C$에서는 0.542값을 나타냈다. 감광제인 cytochrome C을 0.1, 0.3, 0.5 mg/%첨가 하였을 때 첨가량이 증가함에 따라 휘발성분의 패턴 변화가 크게 나타났으며 금속이온인 $Cu^{2+}$를 10, 15, 20 mg% 첨가할 경우에도 첨가량이 증가함에 따라 변화가 크게 일어났다. 또한 유채유의 산패 조건에 따른 전자코의 mass spectrum의 감응도 변화는 이미 보고된 GC/MS의 분석 결과와 유사한 pentane, pentanal, 1-pentanol, hexanal, n-octane, 2-hexenal, heptanal, 2-heptenal, decane, 2-octenal, undecane, dodecane과 같은 성분들로 나타났다.