• Asian-Australasian Journal of Animal Sciences
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• 제31권11호
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• pp.1773-1780
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• 2018

Objective: This study was to evaluate effects of mixed plant oils (identified as mixed oil 1 [MO1] and mixed oil 2 [MO2]) on performance, serum composition, viscera percentages, meat quality, and fatty acid deposition of broilers. Methods: A total of 126 one-day-old Arbor Acres male broiler chicks (weighing $44.91{\pm}0.92g$) were randomly allocated to 1 of 3 treatments with 7 replicate pens per treatment (6 broilers per pen). Dietary treatments included a corn-soybean basal diet supplemented with 3% soybean oil (CTR), basal diet with 3% MO1 (a mixture of 15% corn oil, 10% coconut oil, 15% linseed oil, 20% palm oil, 15% peanut oil and 25% soybean oil; MO1), or basal diet with 3% MO2 (a combination of 50% MO1 and 50% extruded corn; MO2). The trial consisted of phase 1 (d 1 to 21) and phase 2 (d 22 to 42). Results: Compared to CTR, broilers fed MO (MO1 or MO2) had greater (p<0.05) average daily gain in phase 1, 2, and overall (d 1 to 42), redness in thigh muscle, concentrations of serum glucose, serum albumin, saturated fatty acids (SFA) and n-6/n-3 polyunsaturated fatty acids (PUFA) ratio in breast muscle, while these broilers also showed lower ($p{\leq}0.05$) drip loss and concentrations of C18:3n-3 and PUFA/SFA ratio in breast muscle. Broilers fed MO2 had higher (p<0.05) liver percentage, while broilers fed MO1 had lower ($p{\leq}0.05$) feed conversion ratio in phase 1 and increased (p<0.05) contents of C18:2n-6, C20:5n-3, C22:6n-3, and n-3 PUFA in breast muscle compared to CTR. Conclusion: Mixed plant oils had positive effects on performance, serum parameters, meat quality, liver percentage and fatty acid deposition in broilers, which indicates they can be used as better dietary energy feedstocks than soybean oil alone.

• 한국식품조리과학회지
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• 제24권4호
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• pp.542-548
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• 2008

기질유지 4종을 $170{\pm}2^{\circ}C$와 $210{\pm}2^{\circ}C$에서 가열하면서 산가, 요오드가 및 trans지방산 함량의 변화를 살펴본 결과 산가는 4종 기질유지 모두 가열시간과 가열온도의 증가에 따라 증가하였으며 항산화제를 첨가함으로써 그 증가폭은 감소되었다. 요오드가는 가열하는 시간의 증가에 따라 감소하였지만 항산화제 첨가로 감소폭이 감소하였다. 시료유지 중 올리브유의 경우 $170{\pm}2^{\circ}C$와 $210{\pm}2^{\circ}C$에서 7시간 가열 시 각각 88.7$\pm$0.6 및 89.2$\pm$0.5로 큰 차이를 보이지 않아 안정적인 것으로 나타났다. Trans지방산 생성량은 가열온도 및 시간에 따라 증가하였으며 옥배유에서 trans지방산 생성량이 가장 크게 증가되었으며, 올리브유에서 trans지방산 생성량이 가장 적어 안정된 유지인 것이 확인되었다. Catechin과 BHT의 항산화제를 첨가함으로써 $0.5{\sim}15.4$%의 trans지방산의 생성량이 감소되는 것을 확인할 수 있었으며, Catechin이 BHT보다 trans지방산 생성량을 감소시키는데 좀 더 효과적인 것을 알 수 있었다. 위의 결과에서 trans지방산 생성량은 옥배유> 대두유, 채종유> 올리브유의 순으로 높았으며 항산화제를 사용함으로써 trans지방산의 생성을 줄일 수가 있는 것으로 확인되었다.

• 한국영양학회:학술대회논문집
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• 한국영양학회 2001년도 춘계연합학술대회 초록
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• pp.141.1-141
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• 2001

• Journal of Nutrition and Health
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• 제16권4호
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• pp.287-295
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• 1983

Sprague Dawley pregnant rats were fed the hydrogenated coconut oil (P/S 0.02), corn-oil plus beef tallow (P/S 1.0), and corn-oil(P/S 4.0)diet during the 14 days of gestation and through lactation. At weaning, offsprings from each group were divided into two and corn- oil diet was switched to coconut and vice versa, while the other corresponding groups continud the same diet. Body, brain, and liver weights were measured on pups and the brains were analyzed for DNA and vitamin E. Serum and liver vitamin E levels were alse measured. Body weight of coconut group was significantly low throughout the 7 week period, but brain weight was significantly depressed before weaning. Liver weight showed similar pattern with the body weight. Serum vitamin levels increased before weaning, while tissue vitamin E increased after weaning. Serum vitamin E levels of switched groups were similar to that of P/S 1.0 group. Brain vitamin E levels per DNA of switched groups were also similar to that of P/S 1.0 group. And the effect of different dietary essential fatty acid levels on vitamin E in the brain during lactation found to be insignificant.

• Applied Biological Chemistry
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• 제35권1호
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• pp.36-41
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• 1992

면실유, 옥배유 및 채종유의 산패도를 신속하고 재현성 있게 측정하고자 $60^{\circ}C$ 및 $70^{\circ}C$로 저장한 식용유의 pentanal과 hexanal을 headspace 가스크로마토그라피 방법으로 분석하였고, 그 결과를 관능검사 결과와 상관분석을 실시하였다. Headspace 가스크로마토그라피 방법에서 휘발성 산화생성물의 포집 및 용출은 cold trap-thermal desorption 방법으로 실시하였으며, GC 주입부에 들어가는 splitless mode glass liner insert에 Tenax GC를 충전하여 사용하였다. 23종의 휘발성 산화생성물이 gas chromatography 및 gas chromatography-mass spectrometry에 의하여 검출되었으며, 저장 기간에 따른 pentanal과 hexanal 함량 변화와 관능검사에 의한 산패취 측정 결과의 상관분석을 실시한 결과, pentana(PE), hexanal(HE) 및 log{PE) log(HE) $log(PE){\times}log(HE)$의 세 가지를 변수로 한 회귀식의 상관계수의 값이 각각 0.831, 0.866 및 0.896으로 다같이 높을 값을 보였다. 따라서 headspace 가스크로마토그라피를 이용하여 면실유, 옥배유 및 채종유의 휘발성 산화생성물 중 pentanal과 hexanal을 분석하면 각각의 식용유의 산패도를 객관적으로 평가할 수 있음을 알 수 있었다.

• Journal of Dairy Science and Biotechnology
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• 제36권1호
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• pp.32-38
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• 2018

The objective of this research was to determine the grain oil most suitable for the production of omega-3 fatty acids (FAs) in China, in order to supply dietary omega-3 FAs. This study focused on the nutritional significance of omega-3 FAs and the wide search of sources of dietary omega-3 FA from oil grains produced in China. Five oil grains produced in the Yanbian region, namely sesame, flax, peanut, soybean, and corn, were selected and analyzed for their fat content and FA composition. Results showed that the lipid content in sesame, flax, and peanut, which was more than 30%, was higher than that in soybean and corn. The polyunsaturated FA content was found to be directly proportional to omega-3 FA content. Flax showed a considerably higher omega-3 FA content (53.43%) than other samples, suggesting its potential as a source of dietary omega-3 FA. The optimal daily intake of flax for males and females was determined to be 2.99 g (over one table spoon) and 2.06 g (nearly one table spoon), respectively. Flax showed the lowest ratio of omega-6 and omega-3 FA (0.32%), which can help reduce this ratio in the human body; the intake of equal amounts of flax and corn could achieve an optimum ratio of 1:1. These results can prove to be valuable in the preparation of various functional dairy foods in the future.

• Journal of Nutrition and Health
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• 제23권7호
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• pp.477-491
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• 1990

To observe the effect of dietary n6 linoleic acid, n6 gamma-linolenic acid and n3 alphalinolenic acid aon plasma lipid composition and platelet aggregation, twenty college women were divided into 4 groups and treated for 2 weeks with experimental diets supplying fat at 23% cal which were different only in fatty acid composition. Dietary fat was corn oil(CO) as a source of n6 linoleic acid(LA), perilla oil(PO) for n3 alpha-linolenic acid(ALA) and evenign primrose oil(EPO) for n6 gamma-linolenic acid(GLA). Plasma cholesterol level was slightly decreased by PL(13.5g) but significantly increased by equal amount of CO. However, there was similar hypocholeaterolemic effect when double amount of CO(27.0g), was supplemented. Therefore, total fat unsaturation may be more important factor for plasma cholesterol-lowering effect than the structure of fatty acid itself. Plasma cholesterol level was not lowered by supplement of GLA in CO diet. There was similar trend in hypotriglyceridemic effect by PO and CO as in plasma cholesterol. Plasma TG level was rather increased but not significantly by GLA supplement to CO diet. Overall, plasma lipid-lowering effect was greater by ALA than LA and GLA effect was not greater than by LA. GLA supplement did not significantly improve lipid compositions to prevent against CHD. There was no significant change both in fatty acid composition in platelet and ADP-induced platelet aggregation by GLA supplement to corn oil diet and by ALA in PO diet in young women.

• 한국식품과학회지
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• 제37권5호
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• pp.709-712
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• 2005

조류(microalgae, from Schizochytrium sp.)로부터 DHA가 풍부하고 이취가 적은 지질을 획득하고 이를 옥수수유와 함께 반응기질로 이용하여 재구성지질을 합성하였다. 본 실험에 사용된 합성조건으로 oleic(17.3 mol%), linoleic(31.8 mol%), 그리고 docosahexaenoic acid(14.9 mol%)가 함유된 재구성지질을 합성하였다. ${\alpha}-,\;{\gamma}-$, 및 ${\delta}-tocopherol$의 총 함량은 0.059%로 분석되었고, 비누화 가(183.8) 및 요오드 가(201.8)를 측정하였다. 한편, 수행된 반응조건 및 반응시간동안 대부분의 반응은 6시간 내에 이루어 졌고, 그 상승폭은 3-6시간 사이에서 약 2.3배의 증가를 보이며 가장 크게 나타났다.

• 한국식품영양과학회지
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• 제28권5호
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• pp.980-983
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• 1999

The contents of sterols and stanols in vegetable oils and mist oil were analyzed by gas chromatography using a capillary column. The total sterol contents showed high values of 0.67~0.89g/100g in corn oil, rice bran oil, red pepper seed oil and sesame oil. Mist oil, a byproduct of soybean oil manufacture, was a suitable raw material for the production of stanol since it showed high sterol content (10.2g/100g). In the hydrogenation of sterol contained in mist oil using Pd catalyst, the effects saponification of oil were examined. The conversion of sterol to stanol was improved by a factor of 4~5 through saponification of oil, compared to the reaction without saponification.

• Journal of Nutrition and Health
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• 제29권1호
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• pp.112-121
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• 1996

The study was designed to observe the effect of blend fat calculated from the foods consumed in Korean with those of perilla oil, beef tallow and corn oil on colonic mucosal phospholipid fatty acid composition and the levels of TXB2 and diacylglycerol (DAG) which were known as biomarkers for cancer. Male Sprague Dawley rats, at 7 weeks of age, were divided into control and 1, 2-dimethylhydrazine (DMH)-treated group, and each group was subdivided into four groups. The experimental diets contained one of four dietary fats, blend fat (BF), perilla oil(PO), beef tallow (BT) or corn oil (CO), at 15% (w/w) level. At the same time, each rat was injected with saline for control group or DMH twice a week for 6 weeks to give total dose of 180mg/kg body weight. DMH injection, regardless of the type of dietary fats, significantly increased the levels of PGE2 and TXB2 in colonic mucosal layer compared to control (p<0.01). However, the level of eicosanoids was influenced by the types of dietary fats in both control and DMH group. In control groups, colonic mucosal level of TXB2 was higher in beef tallow group, but lower in perilla oil group compared to that of blend fat (p<0.01). In DMH groups, the level of TXB2 was higher in beef tallow and corn oil groups(p<0.05). The level of PGE2 showed the same trends with TXB2 and beef tallow most significantly increased the level of PGE2. DMH treatment did not influence on tissue fatty acid profile, which was directly reflected by dietary fatty acid composition. Proportions of C18 : 2 in colonic mucosal phospholipid well reflected dietary level of C18 : 2 showing the order CO>BF>PO>BT. The precentage of arachidonic acid(AA) in mucosal phospholipid was the highest by CO adn BT groups and the lowest by PO group. The incorporation of $\alpha$-linolenic acid in colonic mucosal phospholipid in perilla oil group was negatively correlated to the content of AA. Dietary level of C18 : 2 might not be the only controlling factor for the production of eicosanoids in colonic mucosa layer and might function with $\omega$3 fatty acids. The level of DAG was significanlty lower in PO group than that of BT group. Therefore, $\omega$3 $\alpha$-linolenic acid rich perilla oil could be very important dietary sourec in controlling eicosanoid production DAG level in cloln and recommenced to use more often in meal preparation to reduce the risk factor against colon cancer.