• 제목/요약/키워드: poly unsaturated fatty acid

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식품중 지방산 및 기타 지질성분에 관한 연구 (Studies on Fatty Acid and Lipid Components of Foods)

  • 권혁희;김인복;김소희
    • 한국식품위생안전성학회지
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    • 제2권4호
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    • pp.197-200
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    • 1987
  • Nutritive value of lipids was associated with composition of fatty acid. Unvalance diet may increase the incidence of diseases. Abundant of EPA and DHA, polyunsaturated fatty acid, were contained in fishes. Studies on 10 kinds of fishes, lipid components were determined. The results were as follows; 1. The content of crude fat 18.1% were high in eels, on the contrary the content of EPA 0.1% and DHA 0.1% were low. The content of crude fat were low in mackeral and sadrine, but the content of poly unsaturated fatty acid were high. 2. Iodine value 189 was high in sadrine, consequently, this results showed the interrelation between Iodine value and the content of polyunsaturated number. 3. The content of crude fat 1.3% in flounder(sole) were low and the content of cholesterol 20 mg% were lowest in present studies.

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육성기의 티머시 건초 조사료 급여가 거세 한우의 육질에 미치는 영향 (Effects of Feeding Timothy Hay Roughage on the Beef Quality of Growing Period Fattening Hanwoo Steers)

  • 김병기
    • 한국축산식품학회지
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    • 제26권3호
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    • pp.284-289
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    • 2006
  • 본 연구는 거세한우에 대한 육성기의 티머시 건초 조사료의 급여효과를 구명하기 위하여 거세우 20두를 공시하여 대조구와 시험구의 2개처리구로 생후 5개월 부터 28개월까지 24개월간 비육시험한 후 등심부위 근육을 분석하였다. 가열 감량, 전단력은 대조구가, 다즙성, 향미는 시험구가 다소 높은 경향이었지만, 관능검사 결과 연도는 시험구(5.10점)가 대조구(4.30점)보다 통계적인 유의성이 인정되었다(p<0.05). 지방산 조성에서 포화지방산은 $42.83{\sim}40.75%$ 범위였고, 불포화지방산과 MUFA 및 PUFA은 시험구(59.25%, 55.61%, 3.40%)와 대조구(57.17%, 54.40%, 2.77%)간에는 통계적인 유의차는 없었다(p>0.05).

A Kinetic Study of Fatty Acid Composition of Embryos, Oviductal and Uterine Fluids in the Rabbit

  • Yahia Khandoker, M.A.M.;Tsujii, H.;Karasawa, D.
    • Asian-Australasian Journal of Animal Sciences
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    • 제11권1호
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    • pp.60-64
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    • 1998
  • The different developmental stage embryos and oviductal and uterine fluids of rabbit were analyzed by gas chromatography. Myristic (C 14:0), palmitic (C 16:0), palmitoleic (C 16:1), stearic (C 18:0), oleic (C 18:1), linoleic (C 18:2), linolenic (C 18:3), arachidic (C 20:0), arachidonic (C 20:4), docosahexaenoic (C 22:6) and lignoceric (C 24:0) acids were the common fatty acid constituents with little exception. In most of the samples palmitic, oleic, linoleic and arachidonic acids were observed in high concentration. Moreover, linoleic, linolenic and arachidonic acids were the three poly-unsaturated fatty acids in both type sample except day-1 oviductal fluids. Similarly, in both day-1 and day-2 oviductal and uterine fluids myristic, palmitoleic, stearic, linolenic, arachidic and docosahexaenoic acids were in less composition or undetected.

버어리엽 건조과정에서 비휘발성 유기산, 지방산 및 폴리페놀화합물의 함량변화 (Changes in the Contents of Non-Volatile Organic Acids, Fatty Acids and Poly phenolic Compounds during Air-Curing in Burley Tobacco)

  • 김도연;배성국;이정일;지상운;김영회
    • 한국연초학회지
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    • 제22권2호
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    • pp.107-113
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    • 2000
  • This study was carried out to investigate the changes in composition of the non-volatile organic acid, fatty acid and polyphenolic compounds during air-curing in burley tobacco leaves, and the effect of curing methods on the contents in air-cured leaves. The air-cured variety, (Nicotiana tabacum cv KB108) was normally grown at the Chonju tobacco experiment station in 1998. Plants designated for the each curing methods were harvested on the same date, and the ripe leaves for primed curing were harvested at the tenth leaf position from the top on the stalk. The major compounds of non-volatile organic acid and fatty acid were malic, citric, oxalic, palmitic, and linolenic acid. The concentrations of malic acid, unsaturated fatty acids, chlorogenic acid and rutin in cured leaves were remarkably decreased during curing, while citric acid was increased. The changes of these compounds showed the similar pattern during both primed and stalk curing. In connection with curing methods, the contents of malic, linoleic and linolenic acid were higher in excessive cured leaves than those in primed cured or stalk cured leaves, while the content of citric acid was lower in excessive cured leaves than that in primed cured or stalk cured leaves.

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Effects of Direct-fed Microbial and Pine Cone Extract on Carcass Traits and Meat Quality of Hanwoo (Korean Native Cattle)

  • Muhlisin, Muhlisin;Song, Chang Soo;Rhee, Yong Joon;Song, Young Han;Lee, Sung Ki
    • Asian-Australasian Journal of Animal Sciences
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    • 제29권5호
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    • pp.722-730
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    • 2016
  • The carcass traits and meat quality of Hanwoo (Korean native cattle) whose diets were supplemented with direct-fed microbial (DFM) and pine cone extract (PCE) were evaluated. Twenty head of Hanwoo steers were divided equally into four groups and for a period of 6 months were given different diets: One group was fed a basal diet as control (CON), the other three groups were fed a basal diet supplemented with DFM-1%, DFM+PCE-1% and DFM+PEC-3%, respectively. DFM+PCE3% diet resulted the lowest carcass quality grade. The loins of DFM-1% contained higher moisture and lower fat than did the loins from the CON group. The crude protein content of DFM+PCE-3% group was significantly higher than that of the other groups. The water holding capacity and Warner-Bratzler shear force of the DFM+PCE-1% and 3% groups were lower than those of the CON and DFM-1% groups. The DFM-1% and 3% groups contained lower saturated fatty acid, higher unsaturated fatty acid, mono-unsaturated fatty acid, and poly-unsaturated fatty acid than did CON and DFM+PCE 1% group. Moreover, the n6:n3 ratios of DFM-1% and DFM+PCE-1% and 3% groups were slightly lower than that of the CON group. Thus we concluded that DFM and PCE supplementation resulted healthier Hanwoo beef with lower fat content and n6:n3 ratio.

장용성 연질 캡슐 오메가3 지방산의 흡수율 평가 (Absorption Evaluation of Enteric Coated Capsules Containing Omega 3 Fatty Acids)

  • 박으뜸;박유헌;박성선;서형주
    • 한국식품영양학회지
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    • 제25권4호
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    • pp.1027-1032
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    • 2012
  • 본 연구에서는 혈액 내에서의 오메가-3 지방산의 함량 변화를 측정하여 연질 캡슐과 장용성 캡슐의 차이를 검토하였다. Fish oil 중의 EPA와 DHA의 총합의 함량이 62.87 g/100 g으로 대부분을 차지하고 있다. 연질 캡슐의 경우, 제 1시험액(위액)에서는 내부의 지방이 70% 용출된 반면, 장용성의 경우 10% 정도만이 용출되었다. 제 2액(소장액)에서도 6시간까지 50% 정도 용출되어 90분에 50%가 용출된 일반 연질 캡슐과 대조적이었다. 기존에 사용하였던 연질 캡슐의 EPA 및 DHA는 흡수 초기에 장용성 캡슐에 비하여 다소 높은 비율을 보인 반면, 8시간 이후 장용성 캡슐 섭취한 경우 EPA와 DHA의 혈액내 함량이 비율이 증가하는 경향을 보였다. 경구 투여 48시간 후 지방산 조성은 장용성 캡슐에서는 mono-, poly-unsaturated fatty acid 혈액 내의 함량이 다소 높은 경향을 보였으며, saturated fatty acid 함량 역시 다소 높은 경향을 보였다. EPA와 DHA의 함량은 혈액 내에서 각 지방 분획에서의 함량 차이를 정확하게 측정하기 힘들었다. 이상의 결과에 의하면 장용성 캡슐은 위장관을 통과하여 장에서 용출되는 특성 때문에 지속적인 효과를 기대할 수 있을 것으로 추정된다.

저장중(貯藏中) 참깨의 결합형태별(結合形態別) 지질(脂質)의 지방산(脂肪酸) 조성변화(組成變化) (Changes in Fatty Acid Compositions of Sesame Seed Lipid Fractions during Storage)

  • 최상도;조무제
    • Applied Biological Chemistry
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    • 제26권4호
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    • pp.261-265
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    • 1983
  • steryl ester구성지방산(構成脂肪酸)으로서 plamitic acid와 stearic acid는 모든 저장조건(貯藏條件)에서 감소(減少)하였고 linoleic acid는 증가(增加)하였다. 또한 $C_{18}$/$C_{16}$지방산비(脂肪酸比)는 통기저장(通氣貯藏)이 밀봉저장(密封貯藏)보다 전(全) 저장기간(貯藏期間)에서 높았다. triglyceride의 구성지방산(構成脂肪酸)으로서 palmitic acid와 stearic acid는 모든 저장조건(貯藏條件)에서 저장(貯藏) 9개월(個月)까지는 감소(減少)하였다가 9개월(個月) 이후(以後)에는 증가(增加)하였다. oleic acid와 linoleic acid는 저장(貯藏) 9개월(個月)까지는 증가(增加)하였다가 그 이후(以後)에는 다시 감소(減少)하였다. 또한 $C_{18}$/$C_{16}$지방산비(脂肪酸比)와 불포화도비(不飽和度比)는 통기저장(通氣貯藏) 밀봉저장(密封貯藏)보다 높은 경향(傾向)이었다. free fatty acid 구성지방산(構成脂肪酸)으로서 palmitic acid와 stearic acid는 저장(貯藏) 9개월(個月)까지는 감소(減少)하였다가 그 이후(以後)부터는 증가(增加))하였다. 그러나 oleci acid와 linoleic acid는 저장(貯藏) 9개월(個月)까지는 감소(減少)하였다가 그 이후(以後)부터는 다시증가(增加))하였다. 한편 불포화도비(不飽和度比)는 통기저장(通氣貯藏)이 밀봉저장(密封貯藏)보다 높았다.

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냉장저장 중 돼지 저지방 부위 근육의 육색소, POV, TBARS, 유리지방산 함량 및 지방산 조성 변화 (Changes in Haem Pigments, Peroxide Value, TBARS, Free Fatty Acid Contents and Fatty Acid Composition of Muscles from Low Fat Pork Cuts during Chilled Storage)

  • 성필남;조수현;김진형;강근호;박범영;이종문;김동훈
    • 한국축산식품학회지
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    • 제30권3호
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    • pp.427-434
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    • 2010
  • 돼지고기 저지방 부위를 구성하고 있는 근육들 중 지방함량이 높은 5개 근육들의 냉장유통 중 품질변화를 예측하고자 냉장상태에서 14일 동안 저장하면서 근육별 이화학적 품질변화를 조사하였다. 육색소(oxy-myoglobin, metmyoglobin, total-myoglobin) 함량은 저장기간에 따른 차이가 없었다(p>0.05). 냉장저장 중 구이용으로 가능한 근육들의 저장성에서 POV 값은 모든 근육들에서 냉장저장 14일간 유의적인 변화가 없었지만(p>0.05), TBARS 값은 모든 근육들은 냉장저장 기간이 경과할수록 유의적으로 증가하였다(p<0.05). 유리지방산은 longissimus dorsi 근육이 냉장저장 기간이 경과함에 따라 유의적으로 높아졌다(p<0.05). 지방산 조성에서 냉장저장 14일까지는 모든 근육들에서 포화지방산, 불포화지방산, 단일불포화지방산, 다중불포화지방산에 유의적인 변화가 없었다(p>0.05).

Effect of the Supplement of Metabolites on Cell Growth and Poly-$\beta$-hydroxybutyrate Biosynthesis of Alcaligenes latus

  • Lee, Yong Hyun;Tae Woo Kim;Jin Seo Park;Tae Lin Huh
    • Journal of Microbiology and Biotechnology
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    • 제6권2호
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    • pp.120-127
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    • 1996
  • The characteristics of cell growth and poly-$\beta$-hydroxybutyrate biosynthesis of Alcaligenes latus ATCC 29713 were investigated. The PHB accumulation pattern of A. latus followed a growth-associated type where the cell growth and PHB accumulation were carried out simultaneously. Various intermediate compounds such as metabolites involved in the TCA cycle, amino acids, and saturated and unsaturated fatty acids were added to examine their effect on cell growth and PHB accumulation. Citrate, tyrosine, and palmitic acid showed the most significant increase both on cell growth and PHB accumulation. Maximum PHB concentrations were noticeably increased about 1.4 to 1.6 times higher than that of control, corresponding to 5.54, 6.45, and 6.45 g/l for citrate, tyrosine, and palmitic acid, respectively. The stimulatory effects of the supplemented metabolites were analyzed in terms of the increment of enzyme activities related to sugar catabolism and PHB biosynthesis.

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지방종류에 따른 Hamburg Patty의 이화학적 특성에 관한 연구 (Study on the Physicochemical Characteristics of Hamburg Patties with Different Lipid Sources)

  • 신기간;이성기;박형일
    • 한국축산식품학회지
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    • 제21권1호
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    • pp.80-88
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    • 2001
  • This study was carried out to evaluate the different physicochemical properties of various lipid sources in beef patties during storage for 6 months. Four groups of samples were made of beef meat patties with 22% of tallow, lard, chicken fat and 20% of palm oil. On the analysis result of physicochemical compositions, the patty has its own fatty acids composition and characteristic different from other lipids. Patty with chicken fat has the highest percentage of unsaturated fatty acid composition of 61.0% compared to the other groups of patties. Beef patty with chicken fat has 18.8% of poly unsaturated fatty acid(USFA) and beef patty with beef lipid has 1.5% of poly USFA which is the least percentage among the others. SFA/USFA ratio of beef patty with chicken lipid was 0.5 which was the least value. The composition of PUFA in beef patty with lard increased to 10.0% from 1.9% over initial value after storage for 6 months. On the contrary, the composition of PUFA in beef patty with chicken fat decreased to 9.2% from 18.8% over initial value after 6 months. Volatile free fatty acids of beef patties were evaluated with four kinds of lipid sources. Formic acid was the most as of 59$\mu\textrm{g}$/g in beef patty with tallow, acetic acid was 15$\mu\textrm{g}$/g, and heptanoic acid was 10$\mu\textrm{g}$/g at starting time of storage. However, propionic acid, butyric acid, valeric acid and caproic acid were not detected. After 6 months, formic acid decreased from 59$\mu\textrm{g}$/g to 7$\mu\textrm{g}$/g in the patty with tallow, from 12$\mu\textrm{g}$/g to non-detect level in the patty with palm oil, but two the others patties slightly increased. Volatile compounds in meat patties were reported nearly 1000 kinds of chemical compounds. Beef patty with tallow has aldehydes 5.3, alcohol 1.3, hydrocarbon 0.8, ketones 0.2, ester 0.1, furans 0.1, acid 0.04, sulfur 0.03 in peak area at starting and increased to aldehydes 8.5, alcohol 2.1, ketones 0.5, ester 1.0, furans 1.5 in peak area during the storage. But only furans was not detected after 6 months of storage. From starting to 6 months, aldehydes increased 2∼10 times, alcohol increased 2∼3 times, acids 4∼50 times and ester 9∼20 times in beef patties with pork lipid, chicken lipid and palm oil. Some volatile compounds such as alcohol, aldehydes and acids in all kinds of patties significantly increased after 6 months of storage. These increases cause oxidative rancidity taste in meat patties. These results showed that selt-life of meat patties with 4 different lipids were not over 6 months even though they were stored at -20$^{circ}C$. Therefore, they should be classified as off-grade because of oxidative rancidity. Although beef patties with tallow are currently common type, the possibility for new type of hamburg patty can be developed by applying different lipids. Finally, we found out new type of beef patty added with lard, which has the best taste and quality compared to the other common types.

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