• 제목/요약/키워드: ${\alpha}-linolenic\

검색결과 181건 처리시간 0.026초

Cholinesterase Inhibitory Constituents from Capsosiphon fulvescens

  • Fang, Zhe;Jeong, Su Yang;Choi, Jae Sue;Min, Byung Sun;Min, Bo Kyung;Woo, Mi Hee
    • Natural Product Sciences
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    • 제18권4호
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    • pp.233-238
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    • 2012
  • Nine compounds (1 - 9), ${\alpha}$-linolenic acid (1), cis-5,8,11,14,17-elcosapentaenoic acid (2), phytol (3), loliolide (4), uridine (5), thymidine (6), deoxyadenosine (7), adenine (8), and adenosine (9), were isolated from the n-hexane, methylene chloride, ethyl acetate and n-butanol fractions of Capsosiphon fulvescens. The structures of these compounds were elucidated on the basis of spectroscopic evidence. Compounds 1 - 9 exhibited acetylcholinesterase (AChE) inhibitory activities with $IC_{50}$ values ranging from 114.91 to $252.40{\mu}M$, whereas 2 - 4 showed butyrylcholinesterase (BChE) inhibitory activities with $IC_{50}$ values ranging from 251.18 to $499.16{\mu}M$.

Antioxidative Effect of Crude Anthocyanins in Water-in-Oil Microemulsion System

  • Oh, Ju-Kyoung;Kim, Seok-Joong;Imm, Jee-Young
    • Food Science and Biotechnology
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    • 제15권2호
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    • pp.283-288
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    • 2006
  • Antioxidative ability of anthocyanins in water-in-oil microemulsion was examined. Microemulsion was prepared by solubilizing crude anthocyanins extracted from grape skin (Cambell early) in organic solvent (hexane) containing anionic surfactant [bis (2-ethylhexyl) sodium sulfosuccinate, AOT] and linolenic acid (10%, w/v). Lipid oxidation significantly decreased with increasing concentration of anthocyanins ($5-20\;{\mu}M$) at micellar phase, and increasing micelle size ($Wo=5-20\;{\mu}M$). At given micelle size (Wo=10), lipid oxidation decreased as number of micelles decreased. These results indicate antioxidative ability of anthocyanins is critically affected by water core and micelle structure formed by surfactant. Interactions between AOT and anthocyanins decreased antioxidative ability of anthocyanins. Antioxidative ability of anthocyanins significantly increased when ${\alpha}$-tocopherol was added into organic phase. This indicates of synergism between the two antioxidants.

Assessment of Genetic Diversity and Fatty acid Composition of Perilla (Perilla frutescens var. frutescens) Germplasm

  • Song, Jae-Young;Lee, Jung-Ro;Oh, Sejong;Kim, Chang-Yung;Bae, Chang-Hyu;Lee, Gi-An;Ma, Kyung-Ho;Choi, Yu-Mi;Park, Hong-Jae;Lee, Myung-Chul
    • 한국자원식물학회지
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    • 제25권6호
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    • pp.762-772
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    • 2012
  • The objective of this study was to analyze the genetic diversity using SSR marker and investigate the fatty acid composition of perilla (P. frutescens var. frutescens) germplasm. Genetic diversity among 95 accessions, which consisted of 29 weedy types and 66 landrace accessions, was evaluated based on 12 SSR markers carrying 91 alleles. The mean values of observed ($H_O$) and expected heterozygosities ($H_E$) were 0.574 and 0.640, respectively, indicating a considerable amount of polymorphism within this collection. A genetic distance-based phylogeny grouped into two distinct groups, which were the landrace, moderate and weedy type, genetic distance (GD) value was 0.609. The physicochemical traits about crude oil contents and fatty acid compositions were analyzed using GC. Among tested germplasm, the total average oil contents (%) showed a range from 28.57 to 49.67 %. Five fatty acids and their contents in the crude oils are as follows: ${\alpha}$-linolenic acid (41.12%-51.81%), linoleic acid (15.38%-16.43%), oleic acid (18.93%-27.28%), stearic acid (2.56%-4.01%), and palmitic acid (7.38%-10.77%). The average oil content of wild types was lower than landrace, and the oil content of middle genotype accessions was higher than other germplasm, but no significant variation between landrace and wild types was shown. Nevertheless, IT117174, landrace of Korea, was highest in crude oil content (47.11%) and linolenic acid composition (64.58%) among the used germplasm. These traits of the selected accessions will be helped for new functional plant breeding in perilla crop.

압착식, 압출식 착유 대마 종실유의 색깔과 주요성분 비교 (Comparison of color and major components of hempseed oils extracted with pressuring and extruding methods)

  • 문윤호;송연상;김광수;이지은;유경단;이영화;이경보;최인성;차영록
    • 한국응용과학기술학회지
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    • 제34권3호
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    • pp.666-672
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    • 2017
  • 대마[Cannabis sativa L.]는 오랫동안 섬유작물로 재배되었지만 종실의 기름 함량이 많고 불포화지방산 비율이 높아 식용유 원료작물로 유망하다. 오랫동안 대마 종실유를 이용해온 유럽의 여러 나라에서는 압출식으로 착유하는데, 이용 역사가 짧은 우리나라에서는 대마 종실유에 대한 정보 부족으로 소비자 기호도가 낮은 편이다. 본 연구는 압착식과 압출식으로 착유한 대마 종실유의 성분을 분석하여 소비자들에게 올바른 정보를 제공하기 위해 수행하였다. 압출식 착유기로 착유하면 착유량이 압착식에 비해 많았다. 착유 부산물인 유박은 압출식에서는 으깨어져 얇고 납작하게 배출되지만, 압착식은 종실이 다소 납작해졌으나 종실의 형상을 유지하였다. 압출식 착유 종실유는 압착식에 비해 Chlorophyll A, B 및 Carotenoid 함량이 높아 명도(L)는 낮고 녹색과 황색은 진하였다. 지방산 조성에서 Palmitic acid, Stearic acid, Oleic aicid, ${\gamma}$-Linolenic acid 비율은 압출식 착유 종실유가 압착식에 비해 다소 높았으나, Linoleic acid와 ${\alpha}$-Linolenic acid는 낮았다. 대마 종실유는 총 토코페롤 함량이 많고 그 중 ${\gamma}$-Tocopherol 함량이 많은 것이 특징이었는데 압출식 착유 종실유가 압착식에 비해 다소 적었다.

들깨 오메가 지방산의 기능과 함량변이 및 이용 (Industrial Utilization and Function of Omega Fatty Acid and Their Content Variation in Perilla)

  • 류수노;이승택;이정일;이재학
    • 한국작물학회지
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    • 제41권spc1호
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    • pp.110-122
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    • 1996
  • The n-3 family fatty acids containing ${\alpha}$-linolenic acid(18:3, ALA) have been known as physiological activation materials such as inhibitory effects on the incidence of hyper-tension, coronary heart disease and cancers as well as the control of senilc dementia. Although a lot of ALA(about $63\%$) are contained in perilla oil, it has not been commercialized yet because the purification technique of the ALA has not been well established. The procedure of purification of ALA from perilla oil was saponified with 1 N-KOH /ethanol and then saturated and low level unsaturated fatty acids were removed by low-temperature crystallization method. The concentrated unsaturated fatty acids (containing about $75\%$ ALA) went down through the silver nitrate-impregnated silica column chromatography for separation of high purity of ALA. The results obtained we Fraction B, C and D contained ALA more than $85.5\%$(recovery, >$88.9\%,\;95.4\%$(recovery, >$54.4\%$) and $99.9\%$(recovery, >$31.5\%$) in purity, respectively. Seed oil content of the tested varieties were ranged from 34.8 to $54.1\%$ with $45.3\%$ of varietal means. The major omega fatty acids contained in the oil were oleic acid(n-9) $15.2\%$, linoleic acid(n-6) $13.9\%$ and linolenic acid(n-3) $63.1\%$ in the mean value. Varietal variation of n-9, 6 and 3 fatty acids ranged of $9.5\~21.4\%,\;9.1\~20.4\%$ and $50.6\~70.5\%$ respectively. Unsaturated fatty acid were averaged $92.2\%$ of seed oil in fatty acid composition. The ratios of n-6 to n-3 ranged of $0.13\~0.34\%$($0.22\%$ in mean value). The highest n-3 fatty acid variety was Yecheonjong being $70.5\%$. The lowest variety in ratios of n-6 to n-3 was Goseongjong being $0.13\%$. Oil content showed positive correlation with stearic acid and linolenic acid, while the negative correlation with oil content and linoleic acid. On the other hand, A significant negative correlation were showed between linolnic acid and the ratios n-6/n-3 fatty acid, saturated fatty acid. Saturated fatty acid was highly correlated with unsaturated fatty acid negatively being $r= -0.723^{**}$.

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무항생제 사육방식으로 생산된 한우육내 코티졸과 지방산 함량 (Cortisol and Fatty Acid Contents in Hanwoo Meat Produced by Antibiotics-free Rearing System)

  • 하재정;김병기;이준구;오동엽;김석수;김태균;채형복;김승준;박영식
    • Reproductive and Developmental Biology
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    • 제38권3호
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    • pp.129-136
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    • 2014
  • 본 시험은 무항생제 사육방식이 한우육내 코티졸과 지방산 함량에 미치는 영향을 구명하고자 실시하였다. 무항생제 및 관행 축산으로 생산된 한우육 1등급 등심(M. longissimus)부위를 3가지의 브랜드별로 각각 3회씩 구매하여 시료로 공시하였고, 분석한 결과는 다음과 같다. 한우육 등심내 코티졸 함량은 무항생제 처리구에서 관행사육 처리구 대비 유의적(p=0.0176)으로 낮게 나타났으며, 포화지방산 및 불포화지방산 함량에서는 유의적(p>0.05)인 차이를 나타내지는 않았으나, 관행사육 처리구에서는 포화지방산이, 무항생제 처리구에서는 불포화지방산이 각각 높은 경향으로 분석되었다. 또한, 불포화지방산 중 n-3과 n-9 지방산을 제외한 n-6 지방산(linoleic acid, ${\gamma}$-linolenic acid)에서 유의적(p<0.01)인 차이를 보였다. 또한, 한우육내 코티졸 농도와 n-6 지방산 농도간의 상관관계를 분석한 결과, 특히 linoleic acid와 유의적(p=0.0140)으로 부(-)의 상관관계가 성립되었다. 결과적으로, 무항생제 인증으로 사육된 한우육은 관행적으로 사육된 한우육에서 보다 상대적으로 코티졸 함량이 낮았으며, 건강에 유익한 불포화지방산 함량이 다소 높은 경향으로 분석됨으로써 육질을 향상시키는 것으로 나타났다.

The Plasma Fatty Acid Composition and Cholesterol Levels of Rates Fed Different Sources of $\omega$3 Fatty Acid and Excess DHA during Gestation, Lactation, and Growth

  • Lee, Hongmie;Lee, Juhee;Kim, Jiwon;Park, Haymie
    • Preventive Nutrition and Food Science
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    • 제6권3호
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    • pp.170-175
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    • 2001
  • This study was designed to investigate the effect of different sources of $\omega$3 fatty acid in the diet with a similar polyunsaturated/saturated (P/S) fatty acid ratio and $\omega$6/$\omega$3 fatty acid ratio as well as excess DHA on the plasma fatty acid composition and cholesterol level of rats. Three experimental diets contained 10% (w/w) dietary lipids. The control diet and one treatment diet were corn oil-based diets with different $\omega$-3 fatty acid sources: perilla (CO) or fish oil (CF), respectively. In order to examine the effect of excess DHA, the other treatment diet (FO) was a fish oil-based diet with corn oil to supply essential fatty acids at the level of 1.8% (w/w) of the diet. Female Sprague Dawley rats were fed the experimental diets for 2 weeks prior to mating and throughout gestation and lactation. Pups were weaned to the same diet of dams at 21 days of age. Plasma fatty acid compositions and cholesterol contents were analyzed for pups at 3th, 7th and 10th week after birth. Plasma DHA concentrations increased significantly as the level of fish oil supplementation increased. Three-, seven- and ten-week old rats fed on CO diet which contained only $\alpha$-lino1enic acid as a $\omega$-3 fatty acid Source had Plasma DHA levels of 4.85%, 3.15% ana 2.47%, respectively, suggesting that rats at this period of development can convert $\alpha$-linolenic acid to DHA. But the ability to form DHA might be limited, since dietary DHA showed to be more effective in raising the plasma level of DHA. There was a significant negative correlation between DHA and cholesterol concentration of the rat plasma at 7th week (r=0.34, p<0.05) and l0th week after birth (r=036, p<0.05), proving the hypocholesterolemic effect of DHA.

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Physicochemical and Functional Characterization of Blue-Shelled Eggs in Korea

  • Sujiwo, Joko;Kim, Dongwook;Yoon, Ji-Yeol;Kim, Hanna;Kim, Jung-Soo;Lee, Sung-Ki;Jang, Aera
    • 한국축산식품학회지
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    • 제37권2호
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    • pp.181-190
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    • 2017
  • The aim of this study was to compare the quality and physicochemical characteristics of blue-shelled eggs (BE) and conventional eggs (CE). Proximate composition, quality, pH value, shell color, collagen content, fatty acid composition, total cholesterol, ${\alpha}$-glucosidase inhibition activity, and antioxidation activity were determined. The proximate composition, general qualities, and pH values of CE and BE showed no significant differences, except in moisture composition, weight, and shell thickness. Moisture content and weight of BE were significantly lower than those of CE. However, shell thickness and weight of BE were higher than those of CE (p<0.05). Lightness of BE was significantly higher than that of CE (85.20 vs. 58.80), while redness ($a^*$) and yellowness ($b^*$) of BE were lower than those of CE ($a^*$: -4.75 vs. 14.20; $b*$: 10.45 vs. 30.63). The fatty acid [C18:1n7 (cis-vaccenic acid) and C18:3n6 (gamma-linolenic acid)] contents of BE were significantly higher than those of CE. The total cholesterol contents of BE and CE were similar. DPPH radical scavenging activity of BE was significantly higher than that of CE (40.78 vs. 35.35). Interestingly, ${\alpha}$-glucosidase inhibition activity of whole egg and egg yolk in BE (19.27 and 36.06) was significantly higher than that of whole egg and egg yolk in CE (13.95 and 32.46). This result indicated that BE could potentially be used as a functional food material. Further studies are required to evaluate the specific compounds that affect functional activity.

한국산(韓국産) 유자의 향기성분(香氣成分) (Aroma Components in Korean Citron (Citrus medica))

  • 이현유;김영명;신동화;선봉규
    • 한국식품과학회지
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    • 제19권4호
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    • pp.361-365
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    • 1987
  • 유자의 이용성 확대를 위하여 유자원료와 유자차의 이화학적 특성, 향기성분 및 유자씨의 지방산조성을 분석하였다. 유자의 평균충량은 196g으로 이중 과즙이 18.8%, 씨 16.3%, 껍질 46.6%이고 과육이 28.3%였다. 유자원료의 당도는 $8.8^{\circ}\;Bx$, 산도 2.1%로 당산비율은 4.2이었고 유자차는 당도 $45^{\circ}\;Bx$, 산도 0.9%였다. 유자에는 fructose, glucose, sucrose가 각각 1.17%, 1.01%, 0.93% 함유되어 있으며 유자차에는 4.46%, 5.53%, 3.27%였다. 유자씨의 성분은 조지방 34.2%, 조단백 15.5% 함유되어 있고, 지방산은 palmitic acid 21.6%, stearic 3.1%, oleic 35.2%, linoleic 37.6%, linolenic이 2.6%였다. 유자의 향기성분은 limonene이 72.4%로 가장 많았으며 탄화수소류 17종, 알코올류 4종, 알데하이드 1종, 기타 6종을 포함 28종을 확인하였다.

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한국산 초피와 산초의 화학성분 (Chemical Constituents of Korean Chopi (Zanthoxylum piperitum) and Sancho (Zanthoxylum schinifolium))

  • 고영수;한희자
    • 한국식품과학회지
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    • 제28권1호
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    • pp.19-27
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    • 1996
  • 야생식량 자원으로서 활용의 여지가 많은 초피와 산초의 성분을 분석 비교하였다. 조단백질은 초피 과피 및 종자가 각각 11.51%, 13.65%로 산초 과피 및 종자보다 약간 높았다. 조지방은 산초 종자가 37.78%로 가장 높았다. 중성지질의 경우 산초 종자가 61.2%로 가장 높았으며 산초 과피는 36.1%로 가장 낮았다. 당지질은 산초 과피가 59.8%로 가장 높았고 산초 종자가 24.7%로 가장 낮았다. 인지질은 산초 종자가 14.1%로 특히 높아, 초피 종자(2.8%)의 약 4배였다. TG의 chromatogram은 초피과피의 경우 $C_{42}$, $C_{46}$, $C_{48}$, $C_{50}$, $C_{52}$$C_{54}$ 등 6개의 peak가 나타났으며 $C_{42}$의 함량이 높았고, 산초 과피는 $C_{42}$, $C_{46}$, $C_{48}$, $C_{50}$$C_{56}$의 5개 peak가 나타나 두 시료에 공통적으로 $C_{42}$, $C_{46}$, $C_{50}$, 이 함유되어 있었다. 초피 종자의 경우는 $C_{42}$, $C_{52}$가, 산초 증자는 $C_{42}$, $C_{50}$이 나타나 4개 시료의 공통적인 TG는 $C_{42}$임을 알 수 있었다. 필수지방산의 총량은 산초 과피가 59.4%로 가장 높았으며, 그 중 linolenic acid는 44.5%, linoleic acid는 14.9%였다. 산초과피에서 ${\beta}-sitosterol$만이 동정되었고, 나머지 3개 시료에서는 campesterol, stigmasterol 및 ${\beta}-sitosterol$을 동정하였다. 4개의 시료에 모두 ${\alpha}-tocopherol\;acetate$${\alpha}-tocopherol$이 함유되어 있었는데 ${\alpha}-tocopherol\;acetate$의 함량은 초피 과피와 종자가 산초 과피 및 종자보다 높았으며, 4개 시료 모두에서는 ${\alpha}-tocopherol$보다 높았다. 유리당은 모든 시료에 전혀 함유되어 있지 않았고, 환원당은 초피 종자(4.19%)와 산초 종자(2.89%)가 초피 과피와 산초 과피에 비하여 훨씬 높았다. 사포닌은 4개 시료 모두에 함유되어 있었으며, 초피 과피가 7.20%으로 가장 높았다. 무기질 중에서는 K의 함량이 모든 시료에서 가장 높았다. 초피 과피에 citric acid가 0.078%, ${\alpha}-ketoglutaric\;acid$가 0.696% 함유되어 있었으며, 산초 과피에 ${\alpha}-ketoglutaric\;acid$가 0.475% 함유되어 있었다. 모든 시료에 공통적으로 많이 함유되어 있는 유리 아미노산은 alanine과 glutamic acid였다. 함량이 많은 총 아미노산의 순은 glutamic acid, aspartic acid, arginine, valine, leucine의 순이었으며, 산초 종자의 glutamic acid의 함량이 2.39%로 매우 높았다. 4개의 시료중에 공통적으로 함량이 높은 정유성분은 limonene(30.1-66.8%), ${\beta}-phellandrene$, citronellal, cineol 등의 순이었으며 citronellal의 함량이 산초 종자에서 22.0%로서 나머지 시료보다 월등히 높았으며, isopulegol의 함량은 초피 과피에서 45.2%로서 나머지 시료의 함량보다 현저히 높았으며, linalool함량도 초피 과피에서 9.5%로 훨씬 높았다. 또한 terpinene-4-o1은 초피 과피 및 종자에 전혀 함유되어 있지 않았으나, 산초 과피에서는 1.1%, 산초 종자에서는 0.8%의 함량을 보여 주었다.

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