• 제목/요약/키워드: n-6 PUFA

검색결과 181건 처리시간 0.031초

12종 어류의 지질 및 지방산 조성의 계절적 변화 (Seasonal Variation in Lipid Class and Fatty Acid Composition of 12 Species of Korean Fish)

  • 정보영;문수경;최병대;이종수
    • 한국수산과학회지
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    • 제32권1호
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    • pp.30-36
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    • 1999
  • 한국 남해 연근해에서 어획된 12종의 주요 어류 (표$\cdot$중층회유어 5종; 멸치, 숭어, 전어, 방어, 고등어: 연안암초어 3종:조피볼낙, 참돔, 감성돔: 저서어 4종: 도다리, 붕장어, 넙치, 말쥐치)를 대상으로 하여 그들의 지질 및 총지방산 조성비의 계절변화를 검토하였다. NL의 주요 조성은 TG 및 ST이었으며, TG조성비는 TL함량과 로그함수로 정의 상관관계 (r=0.91, p<0.001)를 나타내었다. PL의 주요 조성은 PC와 PE였으며, 양자의 조성비는 TL 함량이 적은 어종에서 높은 경향을 나타냈다. 시험된 어류의 주요지방산은 16:0($19.5\pm1.99\%$), DHA($16.6\pm7.46\%$), 18:1 (n-9) ($15.8\pm8.39\%$), EPA ($8.46\pm3.70\%$), 16:1 (n-7) ($7.06\pm3.08\%$), 14:0 ($3.80\pm2.15\%$) 등이었다. 이들 주요 지방산중 MUFA인 18:1 (n-9)와 16:1 (n-7)의 조성비의 변화는 TL 함량 변화와 비례하였으나, PUFA인 DHA와 EPA의 조성비의 변화는 TL 함량 변화와 역비례하였다. 한편 이들 MUFA와 PUFA 조성비와의 변화 사이에는 로그함수로 역의 상관관계 (r=-0.87, p<0.001)를 나타냈다. 그러나 SFA(16: 0)의 조성비는 계절에 따른 지질함량 변동의 영향을 거의 받지 않았다. 또한 EPA 및 DHA의 함량은 지질함량과 정의 상관관계(r=0.95, p<0.001)를 보였다.

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Fatty Acid Profiles of Supraspinatus, Longissimus lumborum and Semitendinosus Muscles and Serum in Kacang Goats Supplemented with Inorganic Selenium and Iodine

  • Aghwan, Z.A.;Alimon, A.R.;Goh, Y.M.;Nakyinsige, K.;Sazili, A.Q.
    • Asian-Australasian Journal of Animal Sciences
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    • 제27권4호
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    • pp.543-550
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    • 2014
  • Fat and fatty acids in muscle and adipose tissues are among the major factors influencing meat quality particularly nutritional value and palatability. The present study was carried out to examine the effects of supplementing inorganic selenium (Se), iodine (I) and a combination of both on fatty acid compositions in serum, and supraspinatus (SS), longissimus lumborum (LL), and semitendinosus (ST) muscles in goats. Twenty-four, 7 to 8 months old, Kacang male goats with a mean live weight of $22.00{\pm}1.17kg$ were individually and randomly assigned into four groups of six animals each for 100 d of feeding prior to slaughter. The animals were offered the same concentrate (basal) diet as 1% of body weight with ad libitum amount of fresh guinea grass. The four groups were as follows: T1 (control) - basal diet without supplementation; T2 - basal diet with 0.6 mg Se/kg DM; T3 - basal diet with 0.6 mg I/kg DM; T4 - basal diet with combination of 0.6 mg Se/kg DM and 0.6 mg I/kg DM. The major fatty acids (FAs) detected in the serum were palmitic (C16:0), stearic (C18:0), oleic (C18:1n9) and linoleic (C18:2n-6), while the major FAs in the selected muscles were C16:0, C18:0 and C18:1n9 acids. The main polyunsaturated fatty acids (PUFA) detected in muscles and serum were (CI8:2n-6), linolenic acid (C18:3n-3), and arachidonic acid (C20:4n-6). No significant differences (p>0.05) were observed in the concentration of total saturated fatty acids (SFA) among the four groups. PUFA concentrations in the goats supplemented with Se (T2) were significantly higher (p<0.05) than the goats of the control group (T1). The PUFA: SFA ratio was significantly higher in the animals supplemented with dietary Se (T2) than those of control ones (T1). It is concluded that dietary supplementation of inorganic Se increased the unsaturated fatty acids in muscle. The supplementation of iodine with or without Se had negligible effects on muscle fatty acid content of Kacang crossbred male goats.

한국 성인의 지방산 섭취와 복부비만 및 고혈당과의 관련성 -1998~2007 국민건강영양조사 자료에 근거하여- (Fatty Acids Intake and Its Association with Abdominal Obesity and Hyperglycemia in Korean Adults: Korea National Health and Nutrition Survey, 1998~2007)

  • 박용순;박효진;원선임
    • 동아시아식생활학회지
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    • 제22권2호
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    • pp.147-162
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    • 2012
  • Abdominal obesity is an important factor of metabolic syndrome and is known as an independent risk factor of cardiovascular disease. The purpose of this study was to examine the fatty acid intake pattern as well as the association between fatty acid intake and abdominal obesity and hyperglycemia in Korean adults. This study was based on data from the Korea National Health and Nutrition Examination Surveys (KNHANES) I, II, III, and IV. After excluding subjects who had missing data for dietary intakes, anthropometric measurments, and laboratory tests, a total of 12,320 subjects aged 20~64y (5,266 men and 7,054 women) were included in the study. Trends in individual consumption of dietary fatty acids by year were analyzed by One-way ANOVA test, and the association between fatty acid intake and abdominal obesity and hyperglycemia was analyzed by logistic regression analysis after adjusting for age, energy intake, marital status, job, education level, alcohol intake, and smoking status. In men, intakes of TFA, SFA, MUFA, FUFA, and n-6 PUFA significantly increased with year. On the other hand, intakes of TFA, SFA and FUFA significantly increased with year in women. Logistic regression analysis showed that the risk of abdominal obesity was significantly associated with intakes of PUFA, LNA and n-3 PUFA in women. However, there was no association with any fatty acid intakes in men. The risk of hyperglycemia was significantly and positively associated with intakes of TFA, SFA, PUFA, and LNA in men, but, there was no significant association with any fatty acid intakes in women. These results show that abdominal obesity and hyperglycemia are significantly associated with individual intake of fatty acids, suggesting that fatty acid type may be associated with risk of abdominal obesity and hyperglycemia. Futher, the macronutrients of measl must be properly balanced.

Aspergillus oryzae 유래의 리파제 Lipolase-100T에 의한 물고기 기름의 가수분해 특성 규명 (Investigation of the Hydrolysis Characteristics of Fish Oil by Means of Aspergillus oryzae Lipase Lipolase-100T)

  • 우동진;조귀준;허병기
    • KSBB Journal
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    • 제14권3호
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    • pp.259-263
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    • 1999
  • 물고기 기름에 대한 Aspergillus oryzae 유래의 Lipolase-100T의 가수분해 특성을 규명하였다. Lipolase-100T는 트리글리세라이드의 1과 3의 위치에 작용하여 이 위치에 결합되어 있는 아실 체인을 유리지방산으로 가수분해시키는 1,3-위채특이성을 보였다. 또한 Lipolase-100T는 물고기 기름을 구성하는 다중불포화지방산 보다 포화지방산을 쉽게 가수분해시키는 특성도 나타내었다. 이 특성으로 인하여 가수분해 시간에 따라서 생성되는 글리세라이드 혼합물내의 다중 불포화 지방산중 n-3 PUFAs인 C16:4, C20:5 및 C22:6의 농도는 모두 증가하였으며 특히 C22:6의 농도증가가 가장 뚜렷하였다. 이 결과로부터 물고기 기름을 구성하는 n-3 PUFAs는 트리글리세라이드의 2번 위치에 결합하고 있음을 알 수 있었다. 지방산의 결합위치특이성과 Lipolase-100T 1,3-위치특이성으로 인하여 Lipolase-100T를 반응물의 0.4 wt%사용하여 물고기 기름을 120시간 가수분해 시켰을 때 생성된 글리세라이드 혼합물내의 n-3 PUFAs농도는 50 wt%까지 상승하였다.

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한국 연근해 어류 14종의 일반성분 및 지방산 조성 (Proximate and Fatty Acid Compositions of 14 Species of Coastal and Offshore Fishes in Korea)

  • 이두석;윤호동;김연계;윤나영;문수경;김인수;정보영
    • 한국수산과학회지
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    • 제44권6호
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    • pp.569-576
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    • 2011
  • Proximate and fatty acid compositions in muscle tissue were studied in 14 species of coastal and offshore fishes in Korea. Lipid content ranged from 0.57 to 10.5% and was higher in migratory and reef dwelling fishes than in demersal fishes. Protein content ranged from 14.4 to 20.3% and moisture content ranged from 72.4 to 81.8% in all fish samples. There was a negative correlation between lipid and moisture content in all fish samples (r= -0.90, P<0.001). The prominent fatty acids were 16:0, 22:6n-3 (docosahexaenoic acid, DHA), 18:1n-9, 20:5n-3 (eicosapentaenoic acid, EPA), 16:1n-7, 18:0 and 18:1n-7. Most demersal fishes contained considerably higher amounts of 20:4n-6 and/or 22:5n-3 compared with migratory and reef dwelling fishes. The proportion of total polyunsaturated fatty acid (PUFA), including DHA and EPA, was higher in demersal fishes (38.6-54.0%) than in migratory and reef dwelling fishes (23.5-35.2%).

Increasing trends in dietary total fat and fatty acid intake among Korean children: using the 2007-2017 national data

  • Song, SuJin;Shim, Jae Eun
    • Nutrition Research and Practice
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    • 제16권2호
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    • pp.260-271
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    • 2022
  • BACKGROUND/OBJECTIVES: The prevalence of obesity has been increasing in Korean children. As an unhealthy diet is known as one of the major determinants of childhood obesity, assessing and monitoring dietary fat intake of children is needed. SUBJECTS/METHODS: This analysis included 9,998 children aged 3-11 yrs from the 2007-2017 Korea National Health and Nutrition Examination Surveys. Dietary data were obtained from a single 24-h dietary recall. Intakes of total fat and fatty acids, including saturated fatty acid (SFA), monounsaturated fatty acid (MUFA), polyunsaturated fatty acid (PUFA), n-3 fatty acid (n-3 FA), and n-6 fatty acid (n-6 FA) were evaluated as the absolute amount (g) and proportion of energy from each fatty acid (% of energy). The total fat and SFA intake were also assessed according to compliance with dietary guidelines. Linear trends in the dietary fats intake across the survey period were tested using multiple regression models. RESULTS: Total fat intake significantly increased from 38.5g (20.3% of energy) to 43.4g (23.3% of energy) from 2007 to 2017. This increase was mainly accounted for the increases in intakes of SFA (7.2% to 8.4% of energy) and MUFA (6.2% to 7.5% of energy). PUFA intake increased from 4.4 to 4.7% of energy during the 11-yrs period: from 0.57 to 0.63% of energy for n-3 FA and from 3.8 to 4.1% of energy for n-6 FA. The proportions of children who consumed amounts exceeding the dietary guidelines for total fat and SFA significantly increased from 2007 to 2017, with increases from 9.8% to 17.4% for total fat and from 36.9% to 50.9% for SFA. CONCLUSIONS: Prominent increasing trends in the consumption of total fat and SFA but tiny change in n-3 FA intake were observed in Korean children. The healthy intake of dietary fats should be emphasized in this population.

삼척지역 특산물인 곰치, 풍덕구이, 곰취, 곤드레의 향토식품 소재화를 위한 영양적 특성 연구 (Nutritional Properties, as Food Resources for Menu Development, of Cubed Snailfish, Shaggy Sea Raven, and Two Kinds of Wild Vegetables that are Staple Products in Samcheok)

  • 서정희;김종옥;김미현;이재철;양희완;이병용;김미영;윤선주;정혜련
    • 한국식품조리과학회지
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    • 제25권6호
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    • pp.690-702
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    • 2009
  • 본 연구에서는 강원도 삼척지역에서 생산되는 농 수특산물인 곰치, 풍덕구이, 곰취, 곤드레의 화학적 영양학적 조성을 평가하고 이를 메뉴에 적용함으로써, 이들 4종의 식품소재 및 이를 활용한 메뉴의 식품영양학적 가치를 평가하고자 하였다. 겨울철에 수집된 삼척산 곰치와 풍덕구이는 일반성분 조성에 있어 유기물에 해당하는 단백질과 지방의 함량이 다소 낮은 경향이 관찰되었고, 이는 계절적 인자, 즉 산란기와 연관되어 있을 것으로 해석하였다. 삼척산 건조 곤드레는 100 g 당 조단백질 24.2 g, 칼슘 1356.0 mg, 철 33.9 mg이 함유되어 있었고, 이는 전국 규모로 수집되어 평가된 식품성분표 상의 수치보다 각각 4.3배, 15배, 13배나 높은 함량이었다. 또한, 필수 미량원소 중 하나인 아연은 삼척산 곤드레에서 정선산보다 6.2배나 높은 함량인 26.2 mg/100 g이 함유되어 있었다. 건조 곤드레와 더불어 곰취 나물의 경우에도 칼슘의 함량이 높았는데, 이는 삼척 지역이 석회석 생산지라 토양 내 칼슘 함량이 다른 지역보다 높다는 사실과 관련되어 있을 것으로 해석하였다. 아미노산 조성 평가에 있어서는, 4종의 식품 소재 모두 풍미와 직접적으로 관련된 아미노산인 glutamic acid, aspartic acid, glycine, alanine이 전체 아미노산 중 높은 비율을 차지함으로써, 메뉴의 단맛과 감칠맛에 기여할 것으로 평가되었다. 또한, 곰치와 풍덕구이는 n-3 PUFA와 n-6 PUFA로 구성된 고도불포화지방산(PUFA)에 속하는 지방산들이 전체 지방산 중 각각 30.6%와 31.6%를 차지하였고, 특히 곰치는 n-3 PUFA의 함량이 n-6 PUFA보다 2배 이상 높게 함유되어 있어, 지방산 조성과 연관된 영양 지표인 n-6/n-3 비율을 기준으로 한 식품의 가치 평가에서는, 영양학적으로 우수한 식품이라 할 수 있다. 앞서 평가한 이들 식품소재의 영양학적 가치가 메뉴로 적용 가능한지를 탐색한 두 번째 단계의 연구에서는, 기존 상용 메뉴의 주재료를 삼척지역 농·수 특산물로 대체하여 음식을 제조한 후 영양학적 측면에서 이들 메뉴를 평가하였다. 그 결과, 칼슘과 아연의 함량이 높았던 삼척산 곤드레를 주재료로한 곤드레 해장국은 단백질, 칼슘, 철분, 아연의 함량이 1일 권장섭취량(RI) 대비 31.5%, 49.3%, 100.0%, 77.8%로 각각 평가됨으로써, 단백질과 무기질의 함량이 매우 높은 메뉴로 확인되어 한국인의 건강식으로 개발될만한 가치가 있다고 평가되었다. 또한, 곰치어죽, 풍덕구이 조림, 곰취 산채 찜만두 1인분은 낮은 열량 임에도 불구하고 단백질과 철분의 제공량이 1일 권장섭취량의 30%를 초과하는 것으로 나타나, 빈혈 발생이 높은 성장기 어린이와 가임기 여성, 임산부 등을 대상으로 하는 영양성이 강조된 차별화된 메뉴 개발의 가능성을 시사하였다.

Fatty Acid Profiles of Ten Muscles from High and Low Marbled (Quality Grade 1++ and 2) Hanwoo Steers

  • Hwang, Young-Hwa;Joo, Seon-Tea
    • 한국축산식품학회지
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    • 제36권5호
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    • pp.679-688
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    • 2016
  • The aim of this research was to evaluate: 1) the fatty acid profile of ten muscles from high marbled (HM, quality grade 1++) and low marbled (LM, quality grade 2) Hanwoo carcass, 2) the relationship between the fatty acid profile and sensory traits. There were significant (p<0.001) differences in fat content and fatty acid composition among the 10 muscles obtained from HM and LM Hanwoo steers. The proportions of SFA (saturated fatty acid), MUFA (monounsaturated fatty acid) and PUFA (polyunsaturated fatty acid) were significantly (p<0.001) different among the 10 muscles due to differences in all fatty acids except eicosapentaenoic acid (EPA, C20:5n-3). The high-fat muscles had a lower n-6/n-3 ratio compared to the low-fat muscles (p<0.001). LM muscles had a significantly (p<0.05) higher proportion of SFA than HM muscles due to a higher proportion of stearic acid (C18:0). On the contrary, HM muscles had a significantly (p<0.01) higher proportion of MUFA than LM muscles due to higher oleic acid (C18:1n-9) proportion. SFA had a significant correlation with CIE a* (r=0.281; p<0.01) and drip loss (%) (r=−0.233; p<0.001). Cooking loss (%) had a significantly (p<0.05) negative correlation with PUFA (r=−0.233; p<0.05). Overall palatability was positively correlated with SFA (r=0.262; p<0.01), but negatively correlated with PUFA (r=−0.567; p<0.001). There was no significant correlation between oleic acid and any of the sensory traits (p>0.05).

Changes in the Total Lipid, Neutral Lipid, Phospholipid and Fatty Acid Composition of Phospholipid Fractions during Pastirma Processing, a Dry-Cured Meat Product

  • Aksu, Muhammet Irfan;Dogan, Mehmet;Sirkecioglu, Ahmet Necdet
    • 한국축산식품학회지
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    • 제37권1호
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    • pp.18-28
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    • 2017
  • Pastirma is a dry-cured meat product, produced from whole beef or water buffalo muscles. This study was carried out to investigate the effect of production stages (raw meat, after curing, after $2^{nd}$ drying and pastirma) on the total lipid, neutral lipid, phospholipid and fatty acid composition of phospholipid fraction of pastirma produced from beef M. Longissimus dorsi muscles. The pH and colour ($L^*$, $a^*$ and $b^*$) analyses were also performed in raw meat and pastirma. It was found that pastirma production stages had significant effects (p<0.01) on the total amounts of lipid, neutral lipid and phospholipid, and the highest amounts of lipid, neutral lipid and phospholipid were detected in pastirma. In pastirma, neutral lipid ratio was determined as $79.33{\pm}2.06%$ and phospholipid ratio as $20.67{\pm}2.06%$. Phospholipids was proportionately lower in pastirma than raw meat. Pastirma production stages affected pentadecanoic acid (15:1) (p<0.01), linoleic acid (18:2n-6) (p<0.05), ${\gamma}-linoleic$ acid (18:3n-6) (p<0.05), erucic acid (22:1n-9) (p<0.05), docosapentaenoic acid (22:5n-6) (p<0.05), total unsaturated fatty acid (${\Sigma}USFA$) (p<0.05) and total saturated fatty acid (${\Sigma}SFA$) (p<0.05) ratios of phospholipid fraction and also the moisture content (p<0.01). Pastirma process also affected pH and colour ($L^*$, $a^*$ and $b^*$) values (p<0.01), and these values were higher in pastirma than raw meat.

Effects of dietary supplementation with a combination of plant oils on performance, meat quality and fatty acid deposition of broilers

  • Long, Shenfei;Xu, Yetong;Wang, Chunlin;Li, Changlian;Liu, Dewen;Piao, Xiangshu
    • 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.