• Title/Summary/Keyword: polyunsaturated fatty acid

Search Result 686, Processing Time 0.056 seconds

Presence of Eicosapentaenoic and Docosahexaenoic Acids Content of Gull (Larus crassirostris vieillot) Eggs (괭이 갈매기(Larus crassirostris vieillot) 알의 EPA 및 DHA 함량)

  • 차재영;김성규;홍순복;최용락;조영수
    • Journal of Life Science
    • /
    • v.9 no.4
    • /
    • pp.493-495
    • /
    • 1999
  • Eicosapentaenoic (EPA, 20:5) and docosahexaenoic (DHA, 22:6) acids of gull eggs were analyzed and the results are summarized as follows: 1. EPA and DHA were 2.25% and 4.35% in the total fatty acid of gull eggs. 2. Triglyceride fractions in the fatty acids had 0.56% in EPA and 1.59% DHA. 3. Diglyceride fractions contained 1.10% EPA and 1.97% DHA. 4. Phospholipid fractions had the most abundant amounts of 4.26% EPA and 8.13% DHA.

  • PDF

Fatty Acid Composition and Content of Omega-3 Polyunsaturated Fatty Acids of Major Fishes Caught in Korean Seas (한국 주요 어종의 지방산 조성 및 ${\omega}-3$ 고도 불포화 지방산의 함량)

  • Ahn, Byung-Hak;Shin, Hyun-Kyung
    • Korean Journal of Food Science and Technology
    • /
    • v.19 no.3
    • /
    • pp.181-187
    • /
    • 1987
  • The lipids of ten major fishes caught in Korean seas were analyzed for fatty acid composition and for the content of $\omega-3$ polyunsaturated fatty acids. The major fatty acids present were hexadecanoic acid $(14{\sim}24%)$, hexadecenoic acid $(4{\sim}13%)$, octadecenoic acid $(8{\sim}29%)$, eicospentaenoic acid $(4{\sim}18%)$ and docosahexenoic acid $(6{\sim}33%)$. The ${\omega}-3$ polyunsturated fatty acids ranged from 18% to 48% of the total fatty acids depending on the species. The content of eicosapentaenoic acid was relatively high in sardine, gizzard shad and atka fish on the basic of fresh body weight, while that of docosahexaenoic acid was highest in hair tail and followed by atka fish and sardine.

  • PDF

Polyunsaturated Fatty Acids in Male Ruminant Reproduction - A Review

  • Tran, Len Van;Malla, Bilal Ahmad;Kumar, Sachin;Tyagi, Amrish Kumar
    • Asian-Australasian Journal of Animal Sciences
    • /
    • v.30 no.5
    • /
    • pp.622-637
    • /
    • 2017
  • Fatty acids such as n-3 and n-6 polyunsaturated fatty acids (PUFA) are critical nutrients, used to improve male reproductive performance through modification of fatty acid profile and maintenance of sperm membrane integrity, especially under cold shock or cryopreservation condition. Also, PUFA provide the precursors for prostaglandin synthesis and can modulate the expression patterns of many key enzymes involved in both prostaglandin and steroid metabolism. Many studies carried out on diets supplemented with PUFA have demonstrated their capability to sustain sperm motility, viability and fertility during chilling and freezing as well as improving testis development and spermatogenesis in a variety of livestock species. In addition to the type and quantity of dietary fatty acids, ways of addition of PUFA to diet or semen extender is very crucial as it has different effects on semen quality in male ruminants. Limitation of PUFA added to ruminant ration is due to biohydrogenation by rumen microorganisms, which causes conversion of unsaturated fatty acids to saturated fatty acids, leading to loss of PUFA quantity. Thus, many strategies for protecting PUFA from biohydrogenation in rumen have been developed over the years. This paper reviews four aspects of PUFA in light of previous research including rumen metabolism, biological roles, influence on reproduction, and strategies to use in male ruminants.

Fatty Acid Composition of Human and Cow's milk (인유(入乳) 및 우유(牛乳)의 지방산 조성에 관하여)

  • Yoon, Tai-Heon;Lim, Kyung-Ja;Kim, Eul-Sang;Chung, Wood-Kap
    • Journal of the Korean Society of Food Science and Nutrition
    • /
    • v.11 no.1
    • /
    • pp.15-20
    • /
    • 1982
  • The fatty acid composition of human milk was determined in 20 milk samples (ten colostrum and 10 mature) obtained at different stages of lactation. Human colostrum contained a lower percentage of total lipids than mature milk. In comparison with mature milk, human colostrum was characterized by a lower percentage of saturated fatty acids, a higher percentage of monounsaturated fatty acids and a higher percentage of extra-long-chain polyunsaturated fatty acid metabolites of both linoleic acid ($\omega$ 6 series) and linolenic acid ($\omega$ 3 series). The linoleic acid levels reported here are considerably higher than those reported previously in Korea. This shift has paralleled an increase in the use of vegetable oils in Korean diet. The human mature milk differed from marketing cow's milk in fatty acid composition, as it had a lower content of short-, medium-and long-chain saturated fatty acids and a higher content of long-chain monounsaturated and polyunsaturated fatty acids.

  • PDF

Effects of Docosahexaenoic Acid on Neurotransmission

  • Tanaka, Kazuhiro;Farooqui, Akhlaq A.;Siddiqi, Nikhat J.;Alhomida, Abdullah S.;Ong, Wei-Yi
    • Biomolecules & Therapeutics
    • /
    • v.20 no.2
    • /
    • pp.152-157
    • /
    • 2012
  • Docosahexaenoic acid (DHA) is the major polyunsaturated fatty acid (PUFA) in the brain and a structural component of neuronal membranes. Changes in DHA content of neuronal membranes lead to functional changes in the activity of receptors and other proteins which might be associated with synaptic function. Accumulating evidence suggests the beneficial effects of dietary DHA supplementation on neurotransmission. This article reviews the beneficial effects of DHA on the brain; uptake, incorporation and release of DHA at synapses, effects of DHA on synapses, effects of DHA on neurotransmitters, DHA metabolites, and changes in DHA with age. Further studies to better understand the metabolome of DHA could result in more effective use of this molecule for treatment of neurodegenerative or neuropsychiatric diseases.

Relationships between Fatty Acid Intake and Serum Lipids in Postmenopausal Women (폐경 후 여성의 지방산 섭취실태와 혈청 지질농도와의 관련성)

  • 이보경
    • Journal of Nutrition and Health
    • /
    • v.32 no.4
    • /
    • pp.437-447
    • /
    • 1999
  • The intake of fatty acids, and the effects of fatty acid intake patterns on serum lipid concentrations was investigated in 112 postmenopausal women. Dietary intakes of fatty acids were assessed by means of a semi-quantitative food questionnaire with food models and other measuring tools. The intakes of saturated fatty acid(SFA), monounsaturated fatty acid(MFA) and polyunsaturated fatty acid(PUFA) were 10.85g, 11.89g and 12.09g, respectively. The ratios of P/M/S and $\omega$6/$\omega$3 fatty acid were 1.19 : 1.10 : 1 and 6.65 ; 1, respectively. Serum lipid concentrations were adjusted for age, menopausal period, BMI, stress scores, exercise habit and energy intake and the relationship between fatty acid intake and serum lipids was measured using Pearson's correlation coefficient. Serum cholesterol concentration was positively correlated with dietary intake of SFA (p<0.10), MUFA(p<0.05), palmitic acid(p<0.10), stearic acid(p<0.05), oleic aicd(p<0.05), and arachidonic acid(p<0.10). Serumk LDL-cholesterol concentration was positively correlated with MUFA(p<0.10), oleic acid(p<0.10), oleic acid(p<0.10), and arachidonic acid (p<0.10). Serum triglyceride concentration was positively correlated with arachidonic acid(p<0.10). However, serum HDL-cholesterol concentration was not found to be significantly correlated with any fatty acids.

  • PDF

Polyunsaturated Fatty Acids in Children

  • Lee, Ji-Hyuk
    • Pediatric Gastroenterology, Hepatology & Nutrition
    • /
    • v.16 no.3
    • /
    • pp.153-161
    • /
    • 2013
  • Polyunsaturated fatty acids (PUFAs) are the major components of brain and retina, and are the essential fatty acids with important physiologically active functions. Thus, PUFAs should be provided to children, and are very important in the brain growth and development for fetuses, newborn infants, and children. Omega-3 fatty acids decrease coronary artery disease and improve blood flow. PUFAs have been known to have anti-inflammatory action and improved the chronic inflammation such as auto-immune diseases or degenerative neurologic diseases. PUFAs are used for metabolic syndrome related with obesity or diabetes. However, there are several considerations related with intake of PUFAs. Obsession with the intake of unsaturated fatty acids could bring about the shortage of essential fatty acids that are crucial for our body, weaken the immune system, and increase the risk of heart disease, arrhythmia, and stroke. In this review, we discuss types, physiologic mechanism of action of PUFAs, intake of PUFAs for children, recommended intake of PUFAs, and considerations for the intake of PUFAs.

Proximate and Total Fatty Acid Compositions of the Reproductive Organs of Male and Female Common Squid Todarodes pacificus

  • Moon, Soo-Kyung;Kim, Kyeong-Dae;Kang, Ji-Yeon;Sung, Nak-Ju;Jeong, Bo-Young
    • Fisheries and Aquatic Sciences
    • /
    • v.10 no.4
    • /
    • pp.171-178
    • /
    • 2007
  • We analyzed the compositions of proximate and total fatty acids in the reproductive organs of male (testis, vas deferens, seminal vesicle, and spermatophore sac) and female (ovary, oviduct, oviducal gland, and nidamental gland) common squid. The protein contents were 12.1-22.7 and 13.2-19.4% for males and females, respectively, and the lipid contents were 1.0-2.7 and 2.1-8.0%, respectively. The prominent fatty acids in all reproductive organs were 22:6n-3, 20:5n-3, 16:0, 20:1n-9, 18:0, 18:1n-9, and 20:4n-6. Females had 28.6-32.0% of 22:6n-3 and 11.3-22.6% of 20:5n-3, while males had 20.8-26.8% of 22:6n-3 and 14.4-28.7% of 20:5n-3. These results indicate that the reproductive organs of both male and female squid are potential sources of n-3 polyunsaturated fatty acid.

Comparison of Composition and Content of Fatty Acid in Egg Yolk Oil among General and Functional Eggs (일반란 및 기능란의 난황속의 지방산 조성 및 함량 비교)

  • 왕수경;구난숙
    • Journal of the Korean Society of Food Science and Nutrition
    • /
    • v.30 no.1
    • /
    • pp.14-19
    • /
    • 2001
  • This study was designed to compare content and composition of fatty acid in egg yolk oil among general eggs from chicken, quail, duck. We also compared those of general and functional chicken egg. Fatty acids were determined by GC method and the results were as follows: Palmitic acid, palmitoleic acid, stearic acid, oleic acid, linoleic acid, linolenic acid and timnodonic acid were identified in egg of chicken, quail and duck. The major fatty acid was oleic acid and palmitic acid in three kinds of eggs. Arachidonic acid and docosahexaenoic acid (DHA) were analyzed in egg of quail , but no in chicken. Monounsaturaterd fatty acid (MUFA) was higher in egg yolk oil of chicken and quail. Polyunsaturated fatty acid (PUFA) was higher in duck egg. Ginseng egg had significantly higher palmitic acid and oleic acid lower than general chicken egg. Gamgoal egg had lower palmitic acid and oleic acid, and higher palmitoleic acid and stearic acid than general chiekcn egg. The content of oleic acid was lower in DHA egg than in general chiecken egg, but arachidonic acid was detected only in DHA egg. Ginseng egg had the highest content of saturated fatty acid among chicken eggs. The content of MUFA acid was the highest in gamgoal egg and general chicken egg. DHA egg had the most amount of PUFA among all chicken egg.

  • PDF

The Effect of Acyl Chain Structure on the Hydrolysis of Fatty Acids from Fish Oil by Lipase-OF 360,000 (아실체인 구조가 효소 Lipase-OF 360,000에 의한 지방산의 가수분해 특성에 미치는 영향)

  • 허병기;우동진;박경원
    • KSBB Journal
    • /
    • v.15 no.1
    • /
    • pp.72-75
    • /
    • 2000
  • The hydrolysis characteristics of each fatty acid composing the fish oil by means of the lipase from Candida cylindracea was investigated. The saturated fatty acids, C14:0, C16:0 and C18:0, and the unsaturated fatty acids with one double bond, C16:1, C18:1(n-7), C18:(n-9), C20:1 and C22:1 were more easily hydrolyzed than the $\omega$-3 polyunsaturated fatty acids. when the number of carbon of the $\omega$-3 fatty acids was same but that of double bond was different, the hydrolysis of the $\omega$-3 fatty acids having lower number of double bond was more rapidly carried out. When the degree of polyunsaturation was same but the number of carbon was different, the lipase acted more rapidly upon the $\omega$-3 fatty acids with lower number of carbon. Docosahexaenoic acid(DHA) was most highly concentrated in the glyceride mixture after 120hr hydrolysis among the various $\omega$-3 polyunsaturated fatty acids. The weight percentage of DHA to the $\omega$-3 fatty acids in the fish oil was 31.87% but that in the glyceride mixture after 120hr hydrolysis was 51.89%.

  • PDF