Grasas y Aceites最新文献_第9页

Fatty acid composition of phospholipids and triacylglycerols in the flesh of the thick-lipped grey mullet (Chelon labrosus) living in Tunisian geothermal water and seawater: A comparative study 生活在突尼斯地热水和海水中的厚唇灰鲻鱼(Chelon labrosus)肉中磷脂和甘油三酯的脂肪酸组成:比较研究

IF 1.4 4区农林科学

Grasas y Aceites Pub Date : 2022-03-30 DOI: 10.3989/gya.1127202

I. Rabeh, K. Telahigue, T. Hajji, S. Kheriji, A. Besbes, R. Besbes, M. El Cafsi

{"title":"Fatty acid composition of phospholipids and triacylglycerols in the flesh of the thick-lipped grey mullet (Chelon labrosus) living in Tunisian geothermal water and seawater: A comparative study","authors":"I. Rabeh, K. Telahigue, T. Hajji, S. Kheriji, A. Besbes, R. Besbes, M. El Cafsi","doi":"10.3989/gya.1127202","DOIUrl":"https://doi.org/10.3989/gya.1127202","url":null,"abstract":"This study was conducted to elucidate the effects of rearing conditions on the composition of different phospholipid (PLs) classes and triacylglycerols (TAG) of the thick-lipped grey mullet (Chelon labrosus), a muscle originating from seawater and geothermal water. The major fatty acids in the examined lipid classes of the two fish groups were palmitic acid (C16:0), stearic acid (C18:0), oleic acid (C18:1n-9), linoleic acid (C18:2n-6), arachidonic acid (C20:4n-6), eicosapentaenoic acid (C20:5n-3), and docosahexaenoic acid (C22:6n-3). The analyses demonstrated that the fatty acid profiles of the PL classes in the seawater fish group were characterized by the predominance of n-3 polyunsaturated fatty acids (PUFA). By contrast, in geothermal fish, the distribution of PUFA series proportions differed between the phospholipid fractions. It was found PUFA n-3 was particularly abundant in PS and PI, while the n-6 series dominated the PC and PE PUFA group. Nonetheless, it was found that neutral lipid fatty acids were characterized by saturated fatty acids (SFA) followed by monounsaturated fatty acids (MUFA) in the seawater fish and by PUFA in the geothermal fish. The results presented here give useful information on the role of lipid classes in the physiological adaptation of C. labrosus which can serve for the optiminzation of these aquaculture systems.","PeriodicalId":12839,"journal":{"name":"Grasas y Aceites","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2022-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44519744","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Effect of tunisian pomegranate peel extract on the oxidative stability of corn oil under heating conditions 突尼斯石榴皮提取物在加热条件下对玉米油氧化稳定性的影响

IF 1.4 4区农林科学

Grasas y Aceites Pub Date : 2022-03-30 DOI: 10.3989/gya.1010202

A. Mnari Bhouri, H. Ghnimi, Z. Amri, N. Koubaa, M. Hammami

引用次数: 1

The effects of electrical and ultrasonic pretreatments on the moisture, oil content, color, texture, sensory properties and energy consumption of microwave-fried zucchini slices 电、超声预处理对微波炸西葫芦片水分、含油量、色泽、质地、感官性能及能耗的影响

IF 1.4 4区农林科学

Grasas y Aceites Pub Date : 2022-03-30 DOI: 10.3989/gya.1126202

A. Rayman Ergün

引用次数: 1

Biodiesel production enhanced by ultrasound-assisted esterification and transesterification of inedible olive oil 超声波辅助不可食用橄榄油的酯化和酯交换反应提高了生物柴油的生产

IF 1.4 4区农林科学

Grasas y Aceites Pub Date : 2022-03-30 DOI: 10.3989/gya.1233202

M. Golmakani, L. Dehghan, N. Rahimizad

{"title":"Biodiesel production enhanced by ultrasound-assisted esterification and transesterification of inedible olive oil","authors":"M. Golmakani, L. Dehghan, N. Rahimizad","doi":"10.3989/gya.1233202","DOIUrl":"https://doi.org/10.3989/gya.1233202","url":null,"abstract":"In the first phase of this study, inedible olive oil with different initial free fatty acid concentrations (2.5, 5.0, and 10.0%) was processed through acid-catalyzed esterification. Various heating methods were used for this purpose. The ultrasound-assisted esterification and traditional magnetic stirrer-assisted esterification methods were similar to each other in terms of their effects on free fatty acid reduction. However, the ultrasound reaction time was significantly shorter than that of the traditional magnetic stirrer. In the second phase of this study, biodiesel production was carried out through the ultrasound-assisted transesterification of inedible olive oil. Independent variables were, namely, ultrasound power level (30, 90, and 150 W), methanol/oil mole ratio (3, 9, and 15), catalyst concentration (0.5, 1.0, and 1.5%), ultrasound time (15, 30, and 45 min), and reaction temperature (45, 55, and 65 °C), which affected the yield indices and physicochemical constants of the produced biodiesel. The purest biodiesel (98.95%) and the highest amount of yield (92.69%) were observed when using an ultrasound power level of 90 W, a methanol/oil mole ratio of 9, a catalyst concentration of 1.0%, an ultrasound time of 30 min, and a reaction temperature of 55 °C. Optimizing the reaction conditions of the ultrasound operation can effectively increase the biodiesel yield (92.69%), while reducing the energy consumption (4.775 kWh/kg) and shortening the reaction time (30 min), compared to the traditional magnetic stirrer (77.28%, 2.17 kWh/kg, and 120 min, respectively). Therefore, ultrasound-assisted transesterification can serve as an effective alternative because of its fast and economic operation for making biodiesel out of inedible olive oil.","PeriodicalId":12839,"journal":{"name":"Grasas y Aceites","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2022-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42942831","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Investigation on chemical composition, antioxidant activity and SARS-CoV-2 nucleocapsid protein of endemic Ferula longipedunculata Peşmen Peşmen地方性长脚毛茛的化学成分、抗氧化活性和严重急性呼吸系统综合征冠状病毒2型核衣壳蛋白的研究

IF 1.4 4区农林科学

Grasas y Aceites Pub Date : 2022-03-30 DOI: 10.3989/gya.0107211

A. Göçeri, I. Demirtaş, M. Alma, Ş. Adem, Z. Kasra, F. Gül, A. Uzun

{"title":"Investigation on chemical composition, antioxidant activity and SARS-CoV-2 nucleocapsid protein of endemic Ferula longipedunculata Peşmen","authors":"A. Göçeri, I. Demirtaş, M. Alma, Ş. Adem, Z. Kasra, F. Gül, A. Uzun","doi":"10.3989/gya.0107211","DOIUrl":"https://doi.org/10.3989/gya.0107211","url":null,"abstract":"The essential and fatty oils were investigated and a quantitative analysis of the root, green and stem parts of F. Longipedunculata was performed by GC-MS and HPLC-TOF/MS and their antioxidant (DPPH method) activities and potential binding of phytochemicals against SARS-CoV-2 nucleocapsid were determined using Molegro Virtual Docker software. In the root part of the plant, the prominent components of oil were β-phellandrene (53.46%), ocimene (6.79%), 4-terpineol (5.94%) and santalol (5.03%). According to the quantitative results, vanillic acid (141.35 mg/kg), ferulic acid (126.19 mg/kg) and 4-hydroxybenzoic acid (119.92 mg/kg) were found in the roots; quercetin-3-β-O-glycoside (1737.70 mg/kg), quercetin (531.35 mg/kg) and ferulic acid (246.22 mg/kg) were found in the in the green part; and fumaric acid (2100.21 mg/kg), quercetin-3-β-O-glycoside (163.24 mg/kg), vanillic acid (57.59 mg/kg) were detected in the stem part. The antioxidant activity of all parts of the plant was higher than the control with BHT. Silibinin, rutin, and neohesperidin exhibited a stronger affinity than nucleotides. In the silico analysis, many of the phytochemicals were attached with strong hydrogen-bonds and electrostatic effects to the amino acids to which nucleotides are bound. The results indicated that the plant showed antioxidant effects and can be effective against SARS-CoV-2 thanks to the different phytochemical compounds it contains.","PeriodicalId":12839,"journal":{"name":"Grasas y Aceites","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2022-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49332897","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Textural and rheological properties of soybean oil organogels structured with polyglycerol and propylene glycol esters during storage 以聚甘油和丙二醇酯为结构的大豆油有机凝胶在贮存期间的结构和流变特性

IF 1.4 4区农林科学

Grasas y Aceites Pub Date : 2022-03-22 DOI: 10.3989/gya.1001202

N. E. Buitimea‐Cantúa, S. Serna-Saldívar, E. Pérez‐Carrillo, T. Jordânia-Silva, D. Barrera-Arrellano, G. V. Buitimea-Cantúa

引用次数: 0

Ultrasound-assisted extraction of red mombin seed oil (Spondias purpurea L.): phenolic profile, fatty acid profile and chemical characterization of the cake, residue from the oil extraction 超声波辅助提取红豆豆籽油（Spondias purpurea L.）：滤饼、油提取残渣的酚类、脂肪酸和化学性质

IF 1.4 4区农林科学

Grasas y Aceites Pub Date : 2022-03-11 DOI: 10.3989/gya.0110211

D. Abreu, E. Carvalho, Eduardo Valério de Barros Vilas Boas, E. Asquieri, C. Damiani

{"title":"Ultrasound-assisted extraction of red mombin seed oil (Spondias purpurea L.): phenolic profile, fatty acid profile and chemical characterization of the cake, residue from the oil extraction","authors":"D. Abreu, E. Carvalho, Eduardo Valério de Barros Vilas Boas, E. Asquieri, C. Damiani","doi":"10.3989/gya.0110211","DOIUrl":"https://doi.org/10.3989/gya.0110211","url":null,"abstract":"The ultrasound-assisted method was used to extract oil from the red mombin seed, mainly aiming to analyze yield. A multivariate analysis served to define optimized parameters (6.46 minutes and S/S ratio of 1:23.10 mass:volume) for ultrasound-assisted extraction (UAE) with the objective of maximizing yield, using the response surface methodology (RSM) and desirability graph with central variables and axial points determined by the central composite rotatable design (CCRD). In addition to the optimization of oil extraction, oil was chemically characterized in terms of antioxidant capacity and nutritional aspects to test the quality and chemical characteristics of red mombin seed oil extraction residue (cake). Analyses showed 32% unsaturated fatty acids, such as palmitoleic acid, linolelaidic acid, and α-linolenic acid, and the presence of phenolic compounds, especially catechin. High dietary fiber content and the presence of phenolic compounds, such as chlorogenic acid, vanillin, and gallic acid, were found in the cake, which allows the possibility of incorporating this material into food products.","PeriodicalId":12839,"journal":{"name":"Grasas y Aceites","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2022-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43865587","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Assessment of obtaining sunflower oil from enzymatic aqueous extraction using protease enzymes 酶法水提葵花籽油的评价

IF 1.4 4区农林科学

Grasas y Aceites Pub Date : 2022-03-10 DOI: 10.3989/gya.0323211

D.S. De Aquino, C. Roders, A.M. Vessoni, N. Stevanato, C. Da Silva

引用次数: 5

Effect of selenium and zinc foliar application to increase the quantitative and qualitative yields of rapeseed at different sowing dates 叶面施硒锌对不同播期油菜籽定量和定性增产的影响

IF 1.4 4区农林科学

Grasas y Aceites Pub Date : 2022-01-14 DOI: 10.3989/gya.0783201

A. Goharian, A. S. Shirani Rad, P. Moaveni, H. Mozafari, B. Sani

{"title":"Effect of selenium and zinc foliar application to increase the quantitative and qualitative yields of rapeseed at different sowing dates","authors":"A. Goharian, A. S. Shirani Rad, P. Moaveni, H. Mozafari, B. Sani","doi":"10.3989/gya.0783201","DOIUrl":"https://doi.org/10.3989/gya.0783201","url":null,"abstract":"The sowing date is an important factor for expanding the cultivated area of rapeseed and affects seed yield, oil content, and fatty acid compounds. Micronutrient elements play an important role in improving the vegetative and reproductive growth of the plant, especially under conditions of biological and environmental stresses. A two-year experiment (2014-2016) was performed to study the response of rapeseed genotypes to foliar application of micronutrients on different sowing dates. The treatments were arranged as a factorial-split plot in a randomized complete block design with three replicates. Three sowing dates of 7 (well-timed sowing date), 17, and 27 (delayed sowing dates) October and two levels of foliar application with pure water (control), selenium (1.5%), zinc (1.5%), and selenium+zinc (1.5%) were factorial in the main plots and five genotypes of SW102, Ahmadi, GKH2624, GK-Gabriella, and Okapi were randomized in the subplots (a total of 30 treatments). Seed yield, oil yield and content, oleic acid, and linoleic acid were reduced when rapeseeds were cultivated on 17 and 27 October, while the contents in palmitic, linolenic, and erucic acids, and glucosinolate increased (p < 0.01). a selenium+zinc treatment improved seed yield, oil content and yield (p < 0.01). The oil quality increased due to increased contents of oleic and linoleic acids under the selenium+zinc treatment (p < 0.01). The GK-Gabriella and GKH2624 genotypes are recommended to be sown on well-timed (7 October) and delayed sowing dates (17 and 27 October) and treated with selenium+zinc due to the higher oil yield, linoleic and oleic acids.","PeriodicalId":12839,"journal":{"name":"Grasas y Aceites","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2022-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47305820","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Computational studies on physico-chemical properties in the quality analysis of corn and peanut oil 玉米和花生油品质分析中理化性质的计算研究

IF 1.4 4区农林科学

Grasas y Aceites Pub Date : 2022-01-14 DOI: 10.3989/gya.0663201

S. Rubalya Valantina, K. Arockia Jayalatha

{"title":"Computational studies on physico-chemical properties in the quality analysis of corn and peanut oil","authors":"S. Rubalya Valantina, K. Arockia Jayalatha","doi":"10.3989/gya.0663201","DOIUrl":"https://doi.org/10.3989/gya.0663201","url":null,"abstract":"Oils are commonly used in cooking as a frying medium which has been constantly subjected to different levels of heating. In this work, we have considered the most commonly used oils namely peanut oil and corn oil. Quality analyses of corn and peanut oils were made by relating macroscopic properties (ultrasonic velocity, viscosity, and density) to microscopic parameters (intermolecular free length, adiabatic compressibility etc.,) by subjecting them to six cycles of heating (190 ˚C). Variation in the mentioned property indexes, the degree of degradation and reusability for the next heating cycle that could be used in the food industry and processing were monitored. Using Newton-Laplace and Wood’s equation, the adiabatic compressibility, acoustic impedance, and intermolecular free length of the oil were estimated from the experimental data. Ultrasonic velocity was observed linearly as related to viscosity with the dependency factor (R2 = 0.932). With the aid of experiential data, the physical thermodynamic parameters, particularly particle size, packing factor, chemical potential, and L-J potential were computed. A high correlation factor was observed by fitting ultrasonic velocity, viscosity, and density to Parthasarathy and Bakshi, and Rodenbush equations. In the study, ultrasonic velocity, a macroscopic parameter, could be decoded to determine the microscopic variations in oil subjected to different temperatures in an industrial application.","PeriodicalId":12839,"journal":{"name":"Grasas y Aceites","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2022-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49355012","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3