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Flavonoids from mulberry leaves inhibit fat production and improve fatty acid distribution in adipose tissue in finishing pigs

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Animal Nutrition 2024年第1期16卷 147-157页

作者： Yingying Liu Yinglin Peng Chen Chen Huibo Ren Ji Zhu Yuan Deng Qingming Cui Xionggui Hu Jianhua He Huali Li Xinghui Zhu Yulong Yin Jun He Yi Xiao College of Animal Science and Technology Hunan Agricultural University Hunan Institute of Animal and Veterinary Science Key Laboratory of Conservation and Genetic Analysis of Local Pig Breed Germplasm Resources College of Information and Intelligence Hunan Agricultural University Institute of Subtropical Agriculture Chinese Academy of Sciences

This study evaluated the effects of flavonoids from mulberry leaves (FML) on plasma biochemical indices,serum activities of lipid metabolism-related enzymes,fat morphology,fatty acid composition,and lipid metabolism in different adipose tissues of finishing *** used 120 Chinese hybrid barrows of Berkshire and Bama mini-pigs with an average initial body weight of 45.11±4.23 *** pigs were randomly assigned to five treatment groups and fed a control diet based on corn,soybean meal,and wheat bran or a control diet supplemented with 0.02%,0.04%,0.08%,or 0.16%*** experimental group had six replicates (pens),with four pigs per *** a 7-d adaptation period,the feeding trial was conducted for 58 *** and adipose tissue samples were collected from 30 pigs (one pig per pen)at the end of the *** results showed that FML supplementation significantly decreased the feed intake to body gain ratio,the plasma concentrations of total cholesterol and free fatty acids,and the serum activity of 3-hydroxy-3-methylglutaryl coenzyme A reductase (linear or quadratic effects,P<0.05),and decreased the plasma triglyceride concentration (quadratic,P=0.07).Increasing FML supplementation increased the average daily gain and serum activities of lipoprotein lipase (linear and quadratic effects,P<0.05) and adipose triglyceride lipase (linear,P<0.05).Dietary FML supplementation decreased the adipocyte area in the dorsal subcutaneous adipose (DSA) tissue of finishing pigs (linear,P=0.05) and increased the adipocyte area in the visceral adipose tissue (quadratic,P<0.01).Increasing FML supplementation decreased the C20:1 content in DSA,abdominal subcutaneous adipose,and visceral adipose tissues of finishing pigs (P<0.05) and increased the C18:3n3 and n-3 PUFA contents(P<0.05).The lipid metabolism genes were regulated by the PPARγ-LXRa-ABCA1 signaling pathway,and their expressions differed in different adipose *** findings suggest that FML improved growth performance,reg

关键词： Finishing pig Mulberry leaf Flavonoid Lipid metabolism fatty acid Lard

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Analysis of fatty acid in Biological Samples Using Liquid Chromatography–Quadrupole-Orbitrap Mass Spectrometry Under Parallel Reaction Monitoring Mode

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Journal of Analysis and Testing 2024年第2期8卷 210-217页

作者： Jingxuan Yang Wenjun Guo Xiaohang Xu Liang Zhao Yajuan Xu Yang Wang School of Pharmaceutical Sciences Changchun University of Chinese MedicineChangchun130117China Key Laboratory of Medicinal Materials Jilin Academy of Chinese Medicine SciencesChangchun130021China Jilin Ginseng Academy Changchun University of Chinese MedicineChangchun130117China

fatty acids(FAs)are an important class of functional small molecules and participate in a variety of life biological *** experiment proposed a liquid chromatography–quadrupole-Qrbitrap mass spectrometry(LC–Q-Orbitrap MS)method to perform FA profiling under parallel reaction monitoring(PRM)acquisition *** FA was derivatized by 2-dimethylaminoethylamine(DMED)to increase the ionization e fficiency and provide the characterized fragment *** mass spectra obtained from full scan,multiple ion monitoring(MIM),and PRM were *** results showed that the protonated ion of FA+DMED–H2O was detected and the neutral loss of 45.06 Da was observed in the tandem mass *** PRM method provided the highest selectivity and sensitivity for FA detection with the help of accurate mass weight and specific neutral loss-based *** method validation was performed using the FA standards and pooled quality control serum sample,which showed that the established method had good repeatability,stability,and ***,the developed method was successfully applied to analyze the rat serum and brain tissue samples for the drug e ffi-cacy evaluation of gross saponin of Tribulus terrestris ***(GSTTF)against middle cerebral artery occlusion(MCAO)-induced ischemic *** method has extensive practicability and great potential in the detection of FA,especially for the analysis of samples with complex matrices.

关键词： fatty acid Derivatization LC-Q-Orbitrap MS Parallel reaction monitoring Biological sample

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fatty acid profiles of muscle from large yellow croaker (Pseudosciaena crocea R.) of different age

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2009年第2期10卷 154-158页

作者： Hong-gang TANG Li-hong CHEN Chao-geng XIAO Tian-xing WU Zhejiang Academy af Agricultural Sciences Hangzhou 310021 China Department of Chemistry Zhejiang University Hangzhou 310027 China

We investigated the fatty acid profiles of muscle from large yellow croaker （Pseudosciaena crocea R.） of different age. One- and two-year-old fish were cultured in floating net cages and sampled randomly for analysis. Moisture, protein, lipid and ash contents were determined by methods of Association of Analytical Chemist （AOAC） International. fatty acid profile was deter- mined by gas chromatography. Crude protein, fat, moisture and ash contents showed no significant differences between the two age groups. The contents of total polyunsaturated fatty acids and docosahexaenoic acid （DHA） were significantly higher and eicosapentaenoic acid （EPA） content was significantly lower in the two-year-old large yellow croaker than in the one-year-old （/＇〈0.05）. No significant differences were observed in the contents of total saturated fatty acids and monounsaturated fatty acids, or the ratio ofn-3/n-6 fatty acids among the large yellow croakers of the two age groups. We conclude that large yellow croakers are good food sources of EPA and DHA.

关键词： fatty acid Large yellow croaker Age

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fatty acid Composition of Tobacco Seed Oil and Synthesis of Alkyd Resin

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Chinese Journal of Chemistry 2007年第5期25卷 705-708页

作者： MUKHTAR, Azam ULLAH, Habib MUKHTAR, Hamid Department of Chemistry University of Education Lahore Institute of Chemistry University of the Punjab Lahore 54600 Pakistan Institute of Industrial Biotechnology G C. University Lahore 54000 Pakistan

The fatty acid composition of tobacco seed oil revealed that the oil is rich in unsaturated fatty acids, having linoleic acid （71.63%）, oleic acid （13.46%） and palmitic acid （8.72%） as the most abundant unsaturated and saturated fatty acids respectively. So the tobacco oil was characterized as semi-drying type on the basis of fatty acid composition. The synthesis of alkyd resin was carried out by alcoholysis or monoglyceride process using an alkali refined tobacco seed oil, pentaerythritol, cis-1,2,3,6-tetrahydrophthalic anhydride along with lithium hydroxide as catalyst. The alkyd resin so prepared was found to be bright and of low color with high gloss. The drying and hardness properties and adhesion of the tobacco seed oil derived alkyd resin were also found a bit superior to those of other alkyd resins of the same oil length. In addition, the water and acid resistance of the said alkyd was also found comparable to the other alkyds.

关键词： tobacco oil alkyd fatty acid linoleic acid gloss and adhesion

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fatty acid Composition of Euphausia superba,Thysanoessa macrura and Euphausia crystallorophias Collected from Prydz Bay,Antarctica

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Journal of Ocean University of China 2016年第2期15卷 297-302页

作者： YANG Guang LI Chaolun WANG Yanqing Key Laboratory of Marine Ecology and Environmental Sciences Institute of OceanologyChinese Academy of Sciences

The information of trophic relationship is important for studying the Southern Ocean ecosystems. In this study, three dominant krill species, Euphausia superba, Thysanoessa macrura and Euphausia crystallorophias, were collected from Prydz Bay, Antarctica, during austral summer of 2009/2010. The composition of fatty acids in these species was studied. E. superba and T. macrura showed a similar fatty acid composition which was dominated by C140, C16：0, EPA （eicosapentenoic acid） and DHA （decosahexenoic acid） while E. crystallorophias showed higher contents of C 18：1（n-9）, C 18： 1 （n-7）, DHA and EPA than the former two. Higher fatty acid ratios of C 18：1（n-9）/18：1（n-7）, PUFA （polyunsaturated fatty acid）/SFA （saturated fatty acid）, and 18PUFA/16PUFA indicated that E. crystallorophias should be classified as a typical onmivore with a higher trophic position compared with E. superba and T. rnacrura.

关键词： fatty acid krill Prydz Bay Euphausia superba Euphausia crystallorophias Thysanoessa macrura

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Developmental changes in lipid and fatty acid metabolism and the inhibition by in ovo feeding oleic acid in Muscovy duck embryogenesis

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Animal Nutrition 2023年第1期12卷 321-333页

作者： Xiufen Zhang Qilin Wu Wenxuan Zheng Chuang Liu Liang Huang Xin Zuo Wenquan Xiao Xiaofeng Han Hui Ye Wence Wang Lin Yang Yongwen Zhu Guangdong Provincial Key Laboratory of Animal Nutrition and Regulation College of Animal ScienceSouth China Agricultural UniversityGuangzhou 510642China Wen's Food Group Co. LtdYunfu 52740China

Hepatic lipid and fatty acid(FA)metabolism are critical for regulating energetic homeostasis during *** present,it remains unclear how an exogenous FA intervention affects embryonic development in an avian embryo *** Exp.1,30 fertilized eggs were sampled on embryonic days(E)16,19,22,25,28,31 and the day of hatch(DOH)to determine the critical period of lipid *** Exp.2,a total of 120 fertilized eggs were divided into two groups(60 eggs/group)for in ovo feeding(IOF)procedures on *** were injected into the yolk sac with PBS as the control group and with oleic acid(OA)as the IOF-OA treatment *** were collected on E28 and *** Exp.1,hepatic triacylglycerol(TG)and cholesterol(CHO)contents increased while serum TG content decreased from E16 to DOH(P0.05).Maximal metabolic changes in lipid and FA metabolism occurred on E22-E28 in Muscovy duck embryogenesis,along with the altered target gene and protein expression related to lipogenesis and ***-OA intervention on E25 could inhibit the target gene expression related to FA uptake,synthesis,and oxidation,which may influence the normal FA metabolism on E28 during embryogenesis.

关键词： Embryo Lipid Triacylglycerol Cholesterol fatty acid Oleic acid

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Comparison of the meat quality and fatty acid profile of muscles in finishing Xiangcun Black pigs fed varied dietary energy levels

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Animal Nutrition 2022年第4期11卷 15-24页

作者： Can Yang Wenlong Wang Xiaowu Tang Ruilin Huang Fengna Li Wenxuan Su Yulong Yin Chaoyue Wen Jian Liu College of Life Sciences and Environment Hunan Provincial Key Laboratory of Biological Resources Protection and Utilization in Nanyue Mountain AreaHengyang Normal UniversityHengyangHunan 421008China Key Laboratory of Agro-ecological Processes in Subtropical Region National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry ProductionInstitute of Subtropical AgricultureChinese Academy of ScienceChangsh1Hunan 410125China Hunan International Joint Laboratory of Animal Intestinal Ecology and Health Hunan Normal UniversityChangshaHunan 410081China College of Bioengineering Hunan Vocational Technical College of Environment and BiologyHengyangHunan 421005China Key Laboratory of Animal Feed and Nutrition of Zhejiang Province College of Animal SciencesZhejiang UniversityHangzhou 310058China Xiangcun High-technology Agricultural Co.LTD LoudiHunan 417000China

To study the effects of dietary energy level on the meat quality of different muscles in finishing pigs,400Xiangcun Black pigs(BW=79.55±4.77 kg)were randomly assigned to 5 treatments with varied calculated digestive energy(DE)at 3,050,3,100,3,150,3,200 and 3,250 kcal/kg,*** treatment had 8replicates with 10 pigs per *** quality,amino acid and fatty acid composition were tested in this *** differences in average daily gain,average daily feed intake or feed-to-gain ratio(P>0.05)were observed among dietary *** concentrations of longissimus dorsi(LD)muscle in DE3150was higher than those in other groups(P<0.05).The crude fat concentration of biceps femoris(BF)muscle in DE3250 tended to be higher than that in DE3150 and DE3100 groups(P<0.05).Pigs in DE3250 and DE3200 had higher fiber density and smaller cross-sectional area of BF muscle than those in DE3150(P<0.05).Pigs in DE3150 had the highest Cu concentration in LD muscle compared with those in DE3200,DE3250(P<0.05).The C16:1 proportion of LD muscle was lower(P<0.01)and C20:1 was higher(P<0.05)in DE3050 than that in the other dietary *** C18:3n6 and C20:3n6 proportions of BF muscle in DE3150 were higher than those in DE 3050,DE3200 and DE3250(P<0.05).For LD muscle,m RNA expressions of type I and IIa MyHC in group DE3150 were higher than other treatments(P<0.01).The LD muscle in DE3150 expressed higher PPARd than in other groups(P<0.01).Pigs in DE3100 expressed higher FOX1 than in DE3200 and DE3250(P<0.05).Sterol-regulatory element binding proteins(SREBPa)mRNA expression decreased linearly when dietary energy level increased in BF muscle(P<0.01).In conclusion,a200 kcal/kg decrease in digestible energy for 4 consecutive weeks did not affect growth performance of Xiangcun Black ***,LD and BF muscle respond differently to dietary energy level,and meat quality was improved by the medium energy level during the finishing phase.

关键词： Energy Growth performance fatty acid Myofibrillar morphology Muscle

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Identification and Functional Characterization of a NovelΔ12 fatty acid Desaturase Gene from Haematococcus pluvialis

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Journal of Ocean University of China 2020年第6期19卷 1362-1370页

作者： ZHANG Lin CHEN Wenbi YANG Shuping ZHANG Yuanbo XU Jilin YANG Dongjie WU Zuyao LIU Tong CAO Jiayi School of Marine Sciences Ningbo UniversityNingbo 315211China College of Food and Pharmaceutical Sciences Ningbo UniversityNingbo 315211China

The freshwater microalga Haematococcus pluvialis accumulates large amounts of fatty acids in response to adverse ***,the key fatty acid desaturase genes in *** remain *** this study,we cloned and functionally characterized aΔ12 fatty acid desaturase gene,and designated it as *** open reading frame of HpFAD2 consisted of 1137 base pairs and encoded 378 amino *** deduced polypeptide showed 70%identity to other endoplasmic reticulumΔ12 fatty acid desaturases,whereas it had only 44%identity to plastidΔ12 fatty acid *** PSORT algorithm and phylogenetic analysis further confirmed its affiliation to the endoplasmic reticulumΔ12 fatty acid *** expression was performed in Saccharomyces cerevisiae cells transformed with the recombinant plasmid *** additional fatty acids(C16:2 and C18:2)were detected in the yeast *** results indicatedΔ12 desaturation activity and substrate preference for C18:1 over C16:*** transcriptional levels of *** HpFAD2 at different growth stages were measured by quantitative polymerase chain reaction(PCR),indicating that the HpFAD2 transcriptional levels were significantly higher in red cells than those in green *** study brings more insight into the fatty acid biosynthetic pathway of ***.

关键词： Δ12 fatty acid desaturase fatty acid Haematococcus pluvialis Saccharomyces cerevisiae transcriptional level

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Effects of vitamin C deficiency or excess on growth performance, anti-oxidative response and fatty acid composition of juvenile abalone Haliotis discus hannai Ino

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Journal of Oceanology and Limnology 2020年第6期38卷 1936-1944页

作者： LI Xinxin FENG Xiuni LUO Kai MA Shuoli DENG Junming ZHANG Wenbing MAI Kangsen Key Laboratory of Mariculture(Ministry of Education) Key Laboratory of Aquaculture Nutrition and Feeds(Ministry of Agriculture)Fisheries CollegeOcean University of ChinaQingdao 266003China Jiaozhou Fisheries Technology Promotion Station Qingdao 266003China College of Animal Science and Technology Yunnan Agricultural UniversityKunming 650201China

A 240-day feeding trial was conducted to investigate the effects of dietary vitamin C on growth performance,anti-oxidative response,and fatty acid composition of juvenile abalone Haliotis discus hannai Ino(initial body weight:0.93±0.00 g).Three semi-purified experimental diets were formulated containing 0.00,94.52,and 9649.58 mg/kg of vitamin C supplied as *** results show that there was no significant difference in weight gain ratio,daily increment in shell length,and survival rate among the three *** dietary vitamin C(9649.58 mg/kg)significantly increased the activities of superoxide dismutase(SOD),glutathine peroxidase(GPX),glitathione-S-transferase(GST),glutathione reductase(GR),alkaline phosphatase(AKP),and lysozyme in viscera(Pacid in viscera and muscle were found in the group with 9649.58 mg/kg of dietary vitamin C(Pfatty acids(14:0,16:0,and 18:0),and increased the composition of 18:2n-6 and 22:6n-3 in the soft body of abalone(Pfatty acid(i.e.,16:1,18:1n-7,18:1n-9,18:2n-6 and 22:6n-3),and decreased specific saturated fatty acid(i.e.,14:0,16:0 and 18:0)contents in the soft body of abalone.

关键词： abalone ascorbic acid anti-oxidative capability fatty acid

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Dietary preferences and potential ecological impact on the zooplankton community of Nemopilema nomurai based on stable isotope and fatty acid analyses

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Journal of Oceanology and Limnology 2022年第3期40卷 1085-1096页

作者： Junjian WANG Chaolun LI Guang YANG Zhencheng TAO Yanqing WANG Haochen XIAN Key Laboratory of Marine Ecology and Environmental Sciences Institute of OceanologyChinese Academy of SciencesQingdao 266071China Laboratory for Marine Ecology and Environmental Science Pilot National Laboratory for Marine Science and Technology(Qingdao)Qingdao 266237China North China Sea Marine Forecasting Center of State Oceanic Administration Qingdao 266100China Center for Ocean Mega-Science Chinese Academy of SciencesQingdao 266071China University of Chinese Academy of Sciences Beijing 100049China Department of Engineering and Technology Institute of Oceanology Chinese Academy of SciencesQingdao 266071China

Information on the dietary composition and food preferences of the giant jellyfish Nemopilema nomurai is important for understanding the trophic drivers of jellyfish outbreaks and their ecological *** used fatty acid(FA)and stable isotope(SI)biomarkers to analyze the diet of *** from the Yellow Sea in August *** was found at all sampling stations,with abundances ranging from 59 inds./km^(2) to 1651 inds./km^(2).There were no significant differences between large(>80 cm in diameter)and small(20–30 cm in diameter)medusae,either in FA compositions or in SI values,which suggests that large and small jellyfi sh have the same food composition and similar trophic *** to other zooplanktons,the relatively high levels of C20꞉4n-6 in total FAs(~12%)indicates that organic detritus contributes considerably to the food composition of the *** mixed model Stable Isotope Analysis in R(SIAR)revealed that *** tended to prey on smaller organisms(<1000μm in diameter)which comprised about 70%of its *** means the *** blooms will put high feeding pressure on the small *** similar SI values and FA composition indicates that krill may share the same food resources with ***,which suggests that the jellyfi sh blooms may affect krill populations as a result of food competition.

关键词： Nemopilema nomurai fatty acid stable isotope dietary preferences

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