• 한국식품영양과학회지
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• 제39권9호
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• pp.1405-1409
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• 2010

특수미 품종인 유색미, 향미, 거대배아미의 지방산 및 아미조산 조성과 호화특성을 분석한 결과는 다음과 같다. 주된 지방산은 linoleic acid, oleic acid, palmitic acid이며, 특히 linoleic acid와 oleic acid가 전체 지방산의 75~80%를 차지하였다. 아미노산은 품종 간에 다소 차이가 있으나, 주요 아미노산은 glutamic acid와 aspartic acid로 분석되었으며, 적진주 품종인 경우는 cysteine과 GABA가 주요 아미노산이었고, 특히, 큰눈에는 cysteine과 GABA가 유의하게 높게 함유되어있는 것으로 나타났다. 특수미의 호화특성을 DSC 분석한 결과, 찰성인 조생흑찰과 화선찰벼가 호화에 필요한 흡열 엔탈피(${\Delta}H$)가 유의적으로 높게 나타났다. 또한, 유색미 품종인 흑진주와 적진주의 열적 특성인 호화개시온도, 최대호화온도 및 호화종결온도가 일반 메성 쌀인 일품현미에 비하여 높게 나타나, 유색미 품종의 취반 특성이 일반 현미에 비하여 낮을 것으로 분석되었다.

• 한국식품영양학회지
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• 제28권1호
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• pp.84-93
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• 2015

Relationship between lipid intake and obesity has been well-addressed but recent findings indicated that the type of lipid or composition of lipid in the diet also contributes to body fat accumulation and consequential health outcome. The purpose of this study was to investigate the status of nutrition intake including fatty acids, lipids and lipid soluble nutrients between the obese and lean college students and to analyze the relationship between the intake of certain fatty acids and body fat accumulation. Anthropometric elements including body weight, height, body fat and composition were measured, and dietary recall was conducted on a total of 114 college students. Data showed that total calorie intake and total lipid intake were not significantly different between the obese and lean subjects, in both male and female students. However, male obese subjects ate more amount of plant lipids and palmitic acids (C16:0) from their diet (p<0.05), while female obese subjects consumed more linoleic acids (18:2) and linolenic acids (C18:3) compared to normal subjects (p<0.01). Correlation analysis revealed that the consumption of palmitoleic acid (C16:1) and lipid soluble vitamin D were negatively (p<0.05) correlated with body fat accumulation in all subjects and these findings were supported by simple linear regression analyses for those variables. These results implicate that rather than only considering the amount of lipids, suggesting a proper type of lipids or lipid metabolites can be considered in nutrition counseling or education.

• Journal of Nutrition and Health
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• 제29권1호
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• pp.9-21
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• 1996

This study was carried out to evaluate the fatty acid intakes of employees in employee feeding operations in Seoul and to provide prudent dietary guidelines with special concern on dietary fat. Four establishments were selected in large scale group and other four were selected as small scale group according to feeding numbers and food cost. Food intake was measured by substracting the leftover from the averaged portion amount. The leftover was measured by the modified aggregate selection plate waste measurement technique. The results were as follows : Employees from the large scale institution consumed more energy, protein, carbohydrate and niacin compared to those from the small scale institution(p<0.05). The mean calorie compositions of carbohydrate, protein and fat of all subjects were 66.7, 16.4 and 16.9%. The mean fat intake was 12.1g/lunch. Linoleic acid(C18:2 $\omega$6, 3.67g) was the most abundant fatty acid contained in the diet, followed by oleic acid (C18:1 $\omega$9, 3.53g) and palmitic acid(C16:0, 1.83g). The subjects consumed 5.2g polyunsaturated fatty acids(PUFA), 4.6g monounsaturated fatty acid(MUFA), 3.2g saturated fatty acid(SFA) per lunch per person. The average ratios of P/M/S and $\omega$6/$\omega$3 fatty acids were 1.6/1.5/1.0 and 8.5/1/0., respectively. the dietary $\omega$3 fatty acid status can be improved, even though the ratios found belong to the desirable range, by including $\omega$3 fatty acid rich-foods such as bean products and seafoods more frequently in the diet. Caution is needed for higher unsaturated nature of $\omega$3 series fatty acids to be prevented from peroxidation.

• 한국식품영양과학회지
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• 제21권1호
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• pp.36-42
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• 1992

서식환경이 다소 상이한 식용달팽이와 왕우렁이를 albinic type과 melanic type으로 나누어 지질조성을 비교 검토하였다. 각 시료의 총지질량은 $1.11{\sim}3.25%$로 왕우렁이가 식용달팽이보다, albinic type이melanic type보다 다소 높게 나타났다. 각 지질성분 중 중성지질은 $31.79{\sim}40.60%$, 당지질은 $4.84{\sim}9.47%$, 인지질은 $50.95{\sim}$62.12%로 식용달팽이는 type 별로 각 지질 함량이 유사하였으나, 왕우렁이는 중성지질과 인지질함량이 melanic type에서 다소 높았다. 각 시료별 albinic type과 melanic type과의 총지질의 지방산 조성이 비슷하였으며 대체로 $C_{18:2}(11.92{\sim}14.37%)$, C_{18:1}(12.34{\sim}13.64%)$, $C_{20:4}(11.03{\sim}13.74%),$, C_{16:0}(7.45{\sim}15.39%)$ 및 $C_{18:0}(7.34{\sim}11.80%)$ 이 주요 구성지방산을 이루고, 그밖에 식용달팽이 중에 $C_{20:2}(9.62{\sim}10.19%)$ 함량이 많았다. 총지질중 특히$C_{16:0}$은 왕우렁이에, $C_{18:0}$, C_{20:2}$는 식용달팽이에 월등히 많았고, polyene산은 식용달팽이에서 보다 많은 비중을 차지하였으나 $C_{22:6}$이 식용달팽이에서는 거의 검출되지 않은 반면 왕우렁이에서 다소 높게 검출되었다. 중성지질의 지방산 조성은 식용달팽이 경우 $C_{18:2}(16.80{\sim}17.74%)$, $C_{20:2} (12.15{\sim}12.59%)$, $C_{18:1}(9.79{\sim}10.37%)$ 및 $C_{18:0}(7.71{\sim}12.43%)$과 $C_{16:0}$, $C_{20:4}$ 함량이 많으나 그밖에 melanic type에서 $C_{18:3}(20.90%)$ 함량이 매우 높았으며, 또한 polyene산 함량도 가장 높게 나타났다. 왕우렁이는 $C_{16:0}(16.96{\sim}17.46%)$, $C_{18:1}(13.79{\sim}13.95%)$, $C_{18:2}(12.90{\sim}15.70%)$ 및 $C_{18:0}$, $C_{20:4}$, $C_{22:6}$이 주성분으로 type별로 그 조성이 비슷하였다. 당지질은 식용달팽이 경우 $C_{18:2}(19.01{\sim}19.72%)$, $C_{16:0}(12.89{\sim}18.76%)$, $C_{18:0}(12.68{\sim}17.52%)$와 $C_{18:1}$이 주요 지방산이었으나 이중 $C_{16:0}$, $C_{18:0}$이 melanic type에 다소 높은 반면 $C_{22:1}$이 albinic type에서만 6.95%로 비교적 높게 나타났다. 왕우렁이는 $C_{18:2}(12.46{\sim}18.21%)$, $C_{16:0}(10.43{\sim}18.48%)$, $C_{20:1}(10.51{\sim}14.59%)$, $C_{20:4}(8.24{\sim}12.34%)$ 및 $C_{18:0}$, $C_{18:1}$이 주를 이루었다. 각 시료의 인지질의 지방산 조성 및 함량은 총지질과 거의 유사하였다.

• 한국축산식품학회지
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• 제31권6호
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• pp.928-934
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• 2011

본 연구에서는 파일럿 스케일의 에멘탈치즈를 제조하였으며, 치즈제조 과정에서 PAB를 첨가하지 않은 치즈를 대조군으로 사용하여 숙성 중 lactic acid의 대사와 지방의 가수분해에 의한 화학적 변화를 연구하였다. 실험결과 에멘탈치즈의 숙성 중 lactic acid는 최초 9.39 g/kg에서 숙성종료(90일)까지 2.56 g/kg으로 감소하였으며, 1.48 g/kg의 acetic acid와 6.11 g/kg의 propionic acid를 생성하였다. 반면 대조군은 숙성 종료일(90일)에 lactic acid의 함량이 15.96 g/kg까지 증가하였으며, acetic acid와 propionic acid는 각각 0.25 g/kg과 0.09 g/kg이 생성됨에 따라 에멘탈치즈가 숙성 중 PAB에 의한 propionic acid 발효특성을 확인하였다. 숙성 중 유리지방산 분석 결과 숙성 종료일(90일)에 에멘탈치즈의 총 유리지방산 함량은 6,628.2 mg/kg이었으며, 대조군의 총 유리지방산 함량은 1,605.4 mg/kg으로서 에멘탈치즈에 사용된 PAB가 높은 지방분해력을 보였다. 또한 에멘탈치즈에서 유리된 지방산의 조성은 숙성 중 LCFFA(C14:0-C18:2)가 높은 비율을 차지 하였으며, 이 중 palmitate(C16:0), stearate(C18:0) 및 oleate(C18:1)가 주요 지방산이었다.

• 한국양식학회지
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• 제2권1호
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• pp.43-51
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• 1989

녹조 편모류인 Dunaliella tertiolecta Butter를 광도, 광주기 및 온도 조건을 달리하여 배양한 후 조체내의 지방산 조성을 분석하였다. 광주기와 온도 조건은 D. tertiolecta의 성장에 뚜렷한 영향을 주었고, 성장기에 최대 세포수는 $2.32{\times}10^6$, 세포 분열율은 1.97 division/day였다. 여러조건에서 배양한 조체의 지방산을 분석한 결과Cl6(Palmitic acid), C18 : 3$\omega$3 (cis-Linolenic acid)가 주성분이었으며 EPA나 DHA와 같은 고도의 불포화 지방산은 소량 검출되었다. 불포화 지방산(Polyene)은 배양 온도가 낮을수록 증가되었으며, 광도는 불포화 지방산 함량에 별로 영향을 미치지 못했다. 광주기 조건에서, 명주기를 오래할수록 D. tertiolecta의 성장은 증가했지만, 반면에 조체내의 불포화 지방산(Polyene)은 감소되는 것으로 나타났다.

• Asian-Australasian Journal of Animal Sciences
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• 제29권10호
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• pp.1432-1442
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• 2016

The objective of this study was to determine the effect of palm and/or linseed oil (LSO) supplementation on carcass quality, sensory evaluation and fatty acid profile of beef from crossbred Wagyu beef steers. Twenty four fattening Wagyu crossbred beef steers (50% Wagyu), averaging $640{\pm}18kg$ live weight (LW) and approximately 30 mo old, were stratified and randomly assigned in completely randomized design into 3 treatment groups. All steers were fed approximately 7 kg/d of 14% crude protein concentrate with ad libitum rice straw and had free access to clean water and were individually housed in a free-stall unit. The treatments were i) control concentrate plus 200 g/d of palm oil; ii) control concentrate plus 100 g/d of palm oil and 100 g/d of LSO, iii) control concentrate plus 200 g/d of LSO. This present study demonstrated that supplementation of LSO rich in C18:3n-3 did not influence feed intakes, LW changes, carcass and muscle characteristics, sensory and physical properties. LSO increased C18:3n-3, C22:6n-3, and n-3 polyunsaturated fatty acids (PUFA), however, it decreased C18:1t-11, C18:2n-6, cis-9, trans-11, and trans-10,cis-12 conjugated linoleic acids, n-6 PUFA and n-6:n-3 ratio in Longissimus dorsi and Semimembranosus muscles.

• 한국식품영양과학회지
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• 제20권4호
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• pp.376-380
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• 1991

The contents of total lipids from Korean marine benthic algae Miyeok(Undaria pinnatifida) and Pare(Enteromorpha compressa)were 1.8% and 0.7% on the dry basis, respectively. They were fractionated by silicic acid column chromatography and identified by gae liquid chromatography. The ratios of neutral lipids, glycolipids and phospholipids in total lipids were 3.5 : 74.1 : 22.4 in Miyeok and 33.1 : 48.4 : 18.5 in Pare. Total fatty acids in Miyeok and Pare were composed of 28.5 and 33.2% of saturates, 9.8 and 10.8% of monoenes, 61.7 and 56.0% of polyenes, respectively and the polyunsaturated acid was the most predominent component. $\omega$-3 polyunsaturated fatty acids were C18:4(15.9 and 17.1%) and C20:5(10.6 and 6.0%).

• Journal of Nutrition and Health
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• 제15권1호
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• pp.15-21
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• 1982

In this work, the quantitative estimation of fatty acids in sesame and perilla oil by high performance liquid chromatography (HPLC) was investigated. The analysis of fatty acids were separated by HPLC using a differential refractometer as a detector. With micro Bondapak $C_{18}FFAA$ column and acetonitril, chloroform and tetrahydrofuran mixture as a solvent. In the fatty acid compositions, sesame oil was composed mainly of linoleic and oleic acids 49.6 % and 34.7%. In perilla oil, the amounts of oleic, linoleic and linolenic acids were 13.6%, 14.5% and 63.8%, respectively.

• Journal of Nutrition and Health
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• 제20권6호
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• pp.456-462
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• 1987

Chemical composition, free amino acid and fatty acid composition of wild and cultured cockle clam were studied. 1. The content of crude protein was higher in Anadara suberenata thanthat ini Anadara granosa. The contents of crude protein and ash increased after boiling. 2 Free amino acid composition of Anadara granosa was similar to that of Anadara suberenata. Both glutamic acid and aspartic acid among free amino acid were the most abundant in cockle clam. Next, leucine, arginine and lysine were abundant in order. They all composed of approximately 50%^ of total amino acid content. Whereas the contents of cystine and methionine were poor. 3. In cockle clam the major fatty acids consisted of C16 :0, C18: 0, C18 ;1 and C18:3 in order. The level of C16 :0 was the highest in lipids. The levels of C18 : 0 and C14 :0 were higher in Anadara granosa than those in Anadara suberenata, while the levels of C16 :0, C18 :3 and C16 : 1 were higher in Amadara suberenata than those in Anadara granosa.