European Journal of Lipid Science and Technology最新文献

{"title":"Effect of Ultrasonic Treatment on Soybean Oil: Focus on Degumming of Soybean Crude Oil and the Quality of Degummed Oil","authors":"Xixi Wu,&nbsp;Tian Gao,&nbsp;Baiyu Shang,&nbsp;Mengjie Geng,&nbsp;Lijia Li,&nbsp;Xumei Feng,&nbsp;Xiangyu Wang,&nbsp;Fei Teng","doi":"10.1002/ejlt.202400115","DOIUrl":"https://doi.org/10.1002/ejlt.202400115","url":null,"abstract":"<div>\u0000 \u0000 <p>This study investigated the effect of ultrasonic-assisted degumming technology on the degumming of soybean crude oil, and the quality change of degummed oil was analyzed. The response surface method designed by Box–Behnken was used to optimize the degumming process conditions. Under the optimal conditions of water addition of 6 mL/100 g, ultrasonic temperature of 45°C, ultrasonic time of 10 min, and ultrasonic power of 60 W, the degumming rate was 73.82%, which was 21.69% higher than that of hydration degumming (52.13%). The phosphorus content of ultrasound-assisted hydration degummed oil (31.21 mg/kg) was significantly lower than that of hydration degummed oil (57.08 mg/kg) and soybean crude oil (119.23 mg/kg). The phospholipid composition and content of degummed oil (phosphatidic acid [PA]: 2.00 mg/g) were lower than that of the hydrated degummed oil (phosphatidylethanolamine [PE]: 0.93 mg/g; PA: 2.28 mg/g) and soybean crude oil (phosphatidylcholine: 9.50 mg/g, PE: 7.28 mg/g, phosphatidylinositol: 7.13 mg/g, and PA: 3.41 mg/g). The results showed that ultrasonic-assisted degumming could significantly reduce the acid value of oil (1.60 mg/g) and slightly reduce the iodine value (130 g/100 g). Moreover, the oxidation stability of the oil was slightly improved. In addition, ultrasonic-assisted hydration degumming could improve the color of oil and slightly reduce the content of unsaturated fatty acids (UFAs) in soybean oil. Aldehydes, alcohols, and acids were identified as the main volatile flavor components for the degummed oil. Therefore, the ultrasonic-assisted hydration method can improve the degumming effect and soybean oil quality.</p>\u0000 <p><i>Practical Applications</i>: Response surface methodology was used to optimize the ultrasonic-assisted degumming process of soybean crude oil. Compared with hydration degumming, ultrasonic-assisted hydration degumming improved degumming effect, reduced phospholipid content, made soybean oil clear and bright, weakened the flavor of natural oils such as crude oil and nuts, and improved the oxidation stability of oil. Moreover, ultrasonic-assisted hydration degumming could slightly reduce the content of UFAs in soybean oil. At the industrial level, the introduction of ultrasonic technology in one step of the application process is a green processing technology, which is conducive to the production of high-quality refined oil.</p>\u0000 </div>","PeriodicalId":11988,"journal":{"name":"European Journal of Lipid Science and Technology","volume":"126 12","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142860091","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"One step beyond for CNSL-based plasticizers for PVC: Use of cardol","authors":"Adélaïde Gartili,&nbsp;Sylvain Caillol,&nbsp;Benoît Briou,&nbsp;Vincent Lapinte","doi":"10.1002/ejlt.202400086","DOIUrl":"https://doi.org/10.1002/ejlt.202400086","url":null,"abstract":"<p>Poly(vinyl chloride) (PVC) is a widely employed plastic across diverse industries and is often associated with plasticizers, additives that decrease the inherent rigidity and brittleness of the material. Conventional phthalate-based plasticizers raise substantial toxicity concerns, encouraging the exploration of bio-based alternatives. One such alternative is the inedible oil, cashew nutshell liquid (CNSL), mainly composed of cardanol and cardol. Recent efforts have focused on developing a cardanol-based PVC plasticizers but the isolation of cardanol involves time-consuming, energy-intensive, and costly steps, limiting its market competitiveness. This study aims to assess for the first time, the efficiency of cardol esters, synthesized using acetic acid and different fatty acids (octanoic acid and myristic acid), in order to evaluate the influence of the alkyl chain on plasticizer properties. The chemical structures of these plasticizers were fully characterized by ¹H NMR spectroscopy, and the mechanical properties and thermal behavior of PVC films plasticized with these additives were investigated. Finally, the endocrine activity was evaluated for cardol and cardanol acetates.</p>","PeriodicalId":11988,"journal":{"name":"European Journal of Lipid Science and Technology","volume":"126 11","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ejlt.202400086","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142579596","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Contents: Eur. J. Lipid Sci. Technol. 10/2024","authors":"","doi":"10.1002/ejlt.202470064","DOIUrl":"https://doi.org/10.1002/ejlt.202470064","url":null,"abstract":"","PeriodicalId":11988,"journal":{"name":"European Journal of Lipid Science and Technology","volume":"126 10","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ejlt.202470064","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142404179","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Editorial Board: Eur. J. Lipid Sci. Technol. 10/2024","authors":"","doi":"10.1002/ejlt.202470063","DOIUrl":"https://doi.org/10.1002/ejlt.202470063","url":null,"abstract":"","PeriodicalId":11988,"journal":{"name":"European Journal of Lipid Science and Technology","volume":"126 10","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ejlt.202470063","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142404178","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cover Picture: Eur. J. Lipid Sci. Technol. 10/2024","authors":"","doi":"10.1002/ejlt.202470062","DOIUrl":"https://doi.org/10.1002/ejlt.202470062","url":null,"abstract":"<p>Simplified cholesterol backbone with images of a random spectral trace, a palm leaf (Rainer Sturm/pixelio.de), fluorescently stained lipid droplets (red) and associated proteins (green) in a T3T-L1 adipocyte (Johanna Spandl, University of Bonn, Germany), and fish (Vera/pixelio.de).\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":11988,"journal":{"name":"European Journal of Lipid Science and Technology","volume":"126 10","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ejlt.202470062","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142404177","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pro-oxidant and antioxidant activity of quinones and nitroazoles in flaxseed oil","authors":"Oleg Shadyro,&nbsp;Anna Sosnovskaya,&nbsp;Irina Edimecheva,&nbsp;Artsem Maliborsky","doi":"10.1002/ejlt.202300242","DOIUrl":"https://doi.org/10.1002/ejlt.202300242","url":null,"abstract":"<p>Quinones are one of the most commonly used drugs for cancer treatment. Combinations of quinoid compounds and other oxidation inducers with flaxseed oil (FO), which is rich in omega-3 alpha-linolenic acid, show promise for improving the efficacy of antitumor drugs. Effects of benzo-, naphtho-, and anthraquinones, as well as metronidazole and a number of nitro-1,2,4-triazoles on the oxidative stability of FO, were studied. To this end, kinetic curves were obtained showing the accumulation of hydroperoxides in FO during storage at 37°C with free access to atmospheric oxygen. The calculated oxidation induction period demonstrates that the majority of the tested quinones intensify the oxidation of FO. Pro-oxidant activity is maximum for 1,4-benzoquinone and significantly decreases (<i>p</i> &lt; 0.05) when various substituents are introduced into its ring. A noticeable increase in the concentration of hydroperoxides and the rate of oxidation at the initial stage of the oxidation process is characteristic for 1,4-benzoquinone and its derivatives. Additives of 1,4-naphthoquinone and 2-hydroxy-1,4-naphthoquinone (lawsone) do not affect the oxidative stability of FO, while 5-hydroxy-1,4-naphthoquinone (juglone) and 4,6-di-tert-butyl-1,2-benzoquinone effectively inhibit the oxidation of FO. The oxidation of FO lipids is accelerated by all investigated nitroazoles; however, 1-methyl-3,5-dinitro-1,2,4-triazole has the highest pro-oxidant activity.</p><p><i>Practical Applications</i>: The results of this study may be useful in the development of new methods of antitumor therapy using omega-3 polyunsaturated substrates in combination with quinoid and nitrotriazole cytostatics. The data obtained can also be used in the development of oxidation-stable foods based on flaxseed oil, as well as in the production of resins, drying oils, varnishes, paints, and other materials.</p>","PeriodicalId":11988,"journal":{"name":"European Journal of Lipid Science and Technology","volume":"126 11","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142579765","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Densimetric sorting of olives to control olive oil quality","authors":"Agnese Spadi,&nbsp;Ferdinando Corti,&nbsp;Giulia Angeloni,&nbsp;Luca Calamai,&nbsp;Piernicola Masella,&nbsp;Alessandro Parenti","doi":"10.1002/ejlt.202400017","DOIUrl":"https://doi.org/10.1002/ejlt.202400017","url":null,"abstract":"<p>Extra virgin is the most valuable commercial category among olive oils, and its quality is influenced by various factors, among which the olive fruit plays a fundamental role. The olives that enter the mill exhibit significant variability in physical and chemical characteristics, potentially impacting the quality of the extracted oil. Therefore, selecting the olives in post-harvest could be a crucial step, especially for differentiating the final product and producing high-quality oil. This work aimed to conduct post-harvest densimetric sorting of the olives. For this purpose, a saline solution was used with different concentrations of salt over the 3 days of harvesting, which made it possible to divide the initial olive batch into two sub-batches with different densities. The respective oil was extracted from each sub-batch, called low- and high-density oils, respectively, and then appropriate physical–chemical analyses were performed to characterize both the olives and the oils. Although both oils were classified as extra virgin, significant differences were observed, with higher concentrations of phenolic and volatile compounds associated with positive sensory attributes in the low-density oils. Densimetric sorting of olives could represent a novel approach in the field of extra virgin olive oil production, enabling potential differentiation of the final product.</p><p><i>Practical Applications</i>: The results obtained in the study could be applied at an industrial level to classify olives in the post-harvest phase. This could allow to produce extra virgin olive oils (EVOO<b>s</b>) with different chemical and sensory characteristics, particularly in terms of volatile and phenolic compounds. This would make it possible to diversify the production of EVOO, satisfy the diverse needs of consumers, allow producers to be more competitive in the market, and, in general, improve the overall quality of the final product.</p>","PeriodicalId":11988,"journal":{"name":"European Journal of Lipid Science and Technology","volume":"126 11","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ejlt.202400017","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142579742","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Analyzing eight Turkish macroalgae: Fatty acids, proteins, and in silico biological activity profiles","authors":"Mehmet Naz,&nbsp;Halil Şenol,&nbsp;Emine Şükran Okudan,&nbsp;Selin Sayın,&nbsp;Belma Konuklugil,&nbsp;Gülaçtı Topçu","doi":"10.1002/ejlt.202400025","DOIUrl":"https://doi.org/10.1002/ejlt.202400025","url":null,"abstract":"<p>This study investigated the fatty acid (FA) compositions and proteins’ molecular weight profiles (MWP) of eight macroalgae species collected from the Antalya and Çanakkale in Turkiye: three red <i>(Liagora viscida</i>, <i>Laurencia obtusa</i>, <i>Palisada perforata</i>), three brown (<i>Stypopodium schimperi</i>, <i>Cladostephus spongiosus</i>, <i>Halopteris scoparia</i>), and two green (<i>Caulerpa scalpelliformis</i>, <i>Penicillus capitatus</i>). The potential bioactivities of the FAs were evaluated by in silico studies, focusing on anti-cholinesterase, antioxidant, and cardioprotective effects. The predominant FA across all species was palmitic acid comprising over 50% of total FAs in most species. Docosahexaenoic acid (DHA) was abundant in seven of the eight species. Significant variations in MWPs were observed among species, with values ranging from &lt;2532 to &gt;67 000 Da. Brown algae generally exhibited higher MWP levels compared to red and green algae which showed distinctive profiles. In silico studies revealed that DHA exhibited the strongest binding affinity toward lipoxygenase acetylcholinesterase and butyrylcholinesterase enzymes with −8.829, −10.636, and −7.984 kcal mol⁻¹ docking scores, respectively. DHA demonstrated significant interactions with key residues, forming hydrogen bonds critical for enzymatic inhibition and potential therapeutic effects. Molecular dynamics simulations confirmed the stability of DHA–protein complexes with low root mean square deviation and root mean square fluctuation values. This comprehensive analysis underscores the nutritional richness and potential bioactivity of macroalgae, particularly in terms of FA composition and protein profiles. The findings suggest that macroalgae, rich in DHA and other beneficial FAs, hold promise for pharmaceutical and nutraceutical applications, warranting further exploration into their therapeutic potential.</p><p><i>Practical Applications</i>: This study explores the fatty acid compositions and protein MWPs of eight macroalgae from Turkey's coasts. The findings suggest potential applications in aquaculture feeds and functional foods. Notably, DHA stands out for its antioxidant, cardioprotective, and cholinesterase inhibitor properties, making these macroalgae promising sources for obtaining DHA. The research supports practical applications in developing nutritional supplements, pharmaceuticals, and aquaculture practices, harnessing the bioactive potential of these marine resources for human health and industry.</p>","PeriodicalId":11988,"journal":{"name":"European Journal of Lipid Science and Technology","volume":"126 11","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142579650","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Water–triglyceride interfaces limit permeability and diffusion of aroma molecules in butter","authors":"Tobias Benedikt Koch,&nbsp;Heiko Briesen","doi":"10.1002/ejlt.202300248","DOIUrl":"10.1002/ejlt.202300248","url":null,"abstract":"<p>Insight into the dynamics of aroma molecules in bulk phases and at water–triglyceride interfaces is crucial for elucidating the aroma release mechanisms in complex dairy products such as butter. This study employs classical, all-atom molecular dynamics simulations with umbrella sampling to investigate the energetics and kinetics of key aroma-active compounds, including diacetyl, <span></span><math>\u0000 <semantics>\u0000 <mi>δ</mi>\u0000 <annotation>$delta$</annotation>\u0000 </semantics></math>-decalactone, and butyric acid, at interfaces of 1,3-dipalmitoyl-2-oleoylglycerol (POP) in water. The chemical properties of aroma compounds, including polarity, hydrogen bonding, and van der Waals interactions, play a pivotal role in their interaction with interfacial molecules, resulting in unique profiles of the potential of mean force and diffusivity. In particular, <span></span><math>\u0000 <semantics>\u0000 <mi>δ</mi>\u0000 <annotation>$delta$</annotation>\u0000 </semantics></math>-decalactone preferentially resides at the interface and accumulates in the triglyceride phase. Aroma permeability through the complexly organized water–triglyceride interface significantly decreases from <span></span><math>\u0000 <semantics>\u0000 <mi>δ</mi>\u0000 <annotation>$delta$</annotation>\u0000 </semantics></math>-decalactone to butyric acid, with a less pronounced reduction for diacetyl. Surprisingly, this trend in aroma permeability at interfaces does not coincide with trends in aroma diffusion within both pure bulk phases. This discrepancy is attributed to local, heterogeneous molecular structuring at water–triglyceride interfaces, impeding the interfacial permeation processes and leading to local aroma confinement.</p><p><i>Practical Application</i>: Employing a water–POP interface as a case study, the methodology investigates aroma compound diffusion within bulk phases, delineating limitations in aroma permeability in dairy products with extended water–triglyceride interfaces. This is a substep in the aroma release process, contributing to the interpretation of perception studies by sensory panels in human sensory experiments and fostering a deeper understanding of the intricate dynamics inherent to individual compounds.</p>","PeriodicalId":11988,"journal":{"name":"European Journal of Lipid Science and Technology","volume":"126 12","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ejlt.202300248","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142263944","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ultraflexible liposomes for transdermal delivery of atorvastatin calcium: Rheological and ex vivo evaluation","authors":"Mohamed A. Akl,&nbsp;Sherif Ryad,&nbsp;Mohamed F. Ibrahime,&nbsp;Alaa A. Kassem","doi":"10.1002/ejlt.202400048","DOIUrl":"10.1002/ejlt.202400048","url":null,"abstract":"<p>Our research aims to explore the possibility of incorporating atorvastatin calcium (ATC) in ultraflexible nanovesicles (UFNVs) to avoid the hepatic first metabolism and enhance its effectiveness as a potential alternative to oral treatment. ATC nanovesicles were developed utilizing the rotary evaporation-sonication method and assessed in vitro concerning their vesicle diameter, zeta potential (ZP), entrapment efficiency (EE), as well as in vitro release studies. The chosen formulation of ATC-UFNVs was integrated into a different gel base that was evaluated for content uniformity, pH, spreading ability, viscosity, and rheological behavior. The skin permeation of the prepared nanovesicles was assessed using an ex vivo permeation and confocal laser microscopy images (CLSM). In vitro evaluation of the ATC-loaded UFNVs showed that the mean diameter of the nanovesicles ranging between 60.84 ± 0.53 nm and 91.68 ± 2.11 nm, the Zeta potential values ranged from of –15.8 ± 0.31 to –25.1 ± 0.81 mV, the EE% were between 84.33 ± 1.94 and 86.53 ± 2.02%, and the ATC release from the formulations was 75.25–90.89%. All release patterns were analyzed kinetically following Higuchi's diffusion approach. Carbapol 934 gel bases containing ATC-UF exhibited non-Newtonian pseudo-plastic flow with thixotropy equal to 2.013 cm². Ex vivo data showed that ATC-UFNVs had better penetration compared to free AC. CLSM revealed that the UF-nanovesicle exhibited stronger and deeper fluorescence signals up to 90 µm depth of permeation in skin versus the rhodamine B-free solution (50 µm). The transdermal ability of the ATC-UFNVs gel formulation has been conclusively demonstrated by our research.</p><p><i>Practical Applications</i>: The successful development of atorvastatin calcium-loaded ultraflexible nanovesicles (ATC-UFNVs) in this study offers promising applications for researchers and healthcare professionals. The ability of these nanovesicles to bypass hepatic first-pass metabolism and enhance drug delivery to the skin presents a potential alternative to oral administration, which can be associated with gastrointestinal side effects and variable absorption. The findings of this research can be applied in the development of novel transdermal drug delivery systems for the treatment of various cardiovascular conditions. ATC-UFNVs may be incorporated into topical formulations for the management of hypercholesterolemia, reducing the need for systemic medication. Additionally, the insights gained from this study could be utilized to explore the feasibility of using nanovesicles for the delivery of other lipophilic drugs, expanding their potential therapeutic applications.</p>","PeriodicalId":11988,"journal":{"name":"European Journal of Lipid Science and Technology","volume":"126 11","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142191956","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}