{"title":"2024 AOCS annual meeting and expo special issue","authors":"Silvana Martini PhD","doi":"10.1002/aocs.12944","DOIUrl":"https://doi.org/10.1002/aocs.12944","url":null,"abstract":"","PeriodicalId":17182,"journal":{"name":"Journal of the American Oil Chemists Society","volume":"102 6","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144213998","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}
Wahyu Ramadhan, Fajar Domychen Sihombing, Bambang Riyanto, Sugeng Heri Suseno, Wini Trilaksani, Joko Santoso, Cahyuning Isnaini, Hana Fitria Navratilova, Muhamad Alif Razi, Neng Tanty Sofyana, Kyle Butler
{"title":"Valorization of Pangasius byproduct oil in wax-structured oleogels as a potential butter substitute for reduced-fat chocolate-based products","authors":"Wahyu Ramadhan, Fajar Domychen Sihombing, Bambang Riyanto, Sugeng Heri Suseno, Wini Trilaksani, Joko Santoso, Cahyuning Isnaini, Hana Fitria Navratilova, Muhamad Alif Razi, Neng Tanty Sofyana, Kyle Butler","doi":"10.1002/aocs.12948","DOIUrl":"https://doi.org/10.1002/aocs.12948","url":null,"abstract":"<p>Despite the extensive use of various vegetable oils in oleogel development, sustainable sources, such as belly Pangasius oil derived from industrial byproducts, offer a promising alternative as the liquid phase in oleogel systems. This research aimed to determine the optimal type and concentration of rice bran wax (RBW) and candelilla wax (CW) oleogelators based on Pangasius byproduct oil and to evaluate their application in producing reduced-fat chocolate-based products. The selected oleogel systems were further assessed, and the properties of the resulting chocolate products were characterized. The 5% CW oleogel exhibited superior gelling and oil binding capacity (99.86 ± 0.13%). Differential scanning calorimetry of oleogels with 2.5%, 5%, and 7.5% oleogelator concentrations showed a shift in melting points with increasing temperature. Rheological analysis revealed dynamic changes in <i>G'</i> and <i>G\"</i> values as the oleogelator concentration increased. Application of the 5% CW oleogel yielded optimal results, producing chocolate products with physical and sensory characteristics comparable to those made with commercial butter. Substituting 50% of the butter with oleogel resulted in products with similar physical attributes and sensory acceptance. Hedonic testing showed no significant differences in most parameters across substitution levels (<i>p</i> > 0.05), with an average acceptance score exceeding 7 on a 9-point scale. Notably, the total energy content of the chocolate product was reduced by 43.77% with 100% oleogel substitution. Eventually, this proof of concept highlights the potential of Pangasius byproduct oil as a sustainable liquid phase in oleogel technology, opening new possibilities for its application in confectionery.</p>","PeriodicalId":17182,"journal":{"name":"Journal of the American Oil Chemists Society","volume":"102 6","pages":"1039-1057"},"PeriodicalIF":1.9,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144214154","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}
Cong-Hui Lu, Yu Gao, Hui-Yuan Lu, Wei-Jian Shen, Jules Muhire, Zhi-Bin Lu, Quan Jing, Xin-Yi Huang, Dong Pei, Duo-Long Di
{"title":"A novel freezing crystallization-HPLC method combined with machine learning for determining pigments and geographical classification of extra virgin olive oil","authors":"Cong-Hui Lu, Yu Gao, Hui-Yuan Lu, Wei-Jian Shen, Jules Muhire, Zhi-Bin Lu, Quan Jing, Xin-Yi Huang, Dong Pei, Duo-Long Di","doi":"10.1002/aocs.12947","DOIUrl":"https://doi.org/10.1002/aocs.12947","url":null,"abstract":"<p>Effective removal of the fatty acid matrix and enrichment of trace target components is a key step in the quantitative analysis of minor components in edible oils. In this study, a novel sample pretreatment method named freezing crystallization was developed to analyze pigments in extra virgin olive oil (EVOO). The limits of detection and limits of quantification of this method were 0.125–0.625 μg/mL and 0.5–2.5 μg/mL, respectively. Linear correlations were obtained (r<sup>2</sup> ≥ 0.9995), and the recoveries at three spiked levels were 84.2%–105.8%. Besides, the primary pigment components information combined with machine learning to classify the origin of Chinese EVOOs. The <i>k</i>-nearest neighbor (<i>kNN</i>), decision tree (<i>DT</i>), and random forest (<i>RF</i>) were employed to classify the origin of EVOOs, and the accuracies were up to 88%, 88%, and 96%, respectively. This result shows that the novel method has good accuracy and stability, and pigments can be used as a basis for classifying the geographical origin of Chinese domestic EVOOs.</p>","PeriodicalId":17182,"journal":{"name":"Journal of the American Oil Chemists Society","volume":"102 6","pages":"1029-1038"},"PeriodicalIF":1.9,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144214105","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}
Evelyn Ling Lee, Lee Fong Siow, Cher Pin Song, Eng-Seng Chan, Yong Wang, Zhen Zhang, Wanting Ke, Min Ying Liow, Yee-Ying Lee
{"title":"Ultrasound assisted interesterification for enhancing productivity of oxidative sensitive docosahexanoic acid -enriched medium-and-long chain triacylglycerol synthesis","authors":"Evelyn Ling Lee, Lee Fong Siow, Cher Pin Song, Eng-Seng Chan, Yong Wang, Zhen Zhang, Wanting Ke, Min Ying Liow, Yee-Ying Lee","doi":"10.1002/aocs.12946","DOIUrl":"https://doi.org/10.1002/aocs.12946","url":null,"abstract":"<p>The synthesis of docosahexaenoic acid (DHA)-enriched medium- and long-chain triacylglycerols (MLCT), particularly with DHA at the <i>sn</i>-2 position and medium chain fatty acids (MCFA) at the <i>sn</i>-1,3 positions, is a promising strategy to enhance DHA bioavailability. However, the synthesis of DHA-enriched MLCTs is hindered by steric hindrance due to DHA's very long-chain polyunsaturated fatty acids. This study investigates the enzymatic interesterification of microalgae oil and medium chain triacylglycerols (MCT) using regio-selective lipases with different typo-selectivities. We evaluated the impact of interesterification conditions (substrate ratio, type of lipase, lipase loading, temperature and time) on MLCT yield, DHA distribution at <i>sn</i>-2 and acyl migration. The optimal conditions, using 6% <i>Rhizopus oryzae</i> lipase at 50 °C for 8 h achieved a MLCT yield of 64.9% ± 0.4%, with 37.5% DHA at the <i>sn</i>-2 position. In comparison, <i>Rhizomucor miehei lipase</i> produced a lower yield (49.5% ± 1.0%) but a higher DHA distribution at <i>sn</i>-2 position (46.3% ± 0.2%). Given DHA's susceptibility to oxidation, we also integrated ultrasound (US) pre-treatment with enzymatic interesterification to improve MLCT yield. Using 4% <i>RO</i> with US pre-treatment (40% amplitude, 4 s on/6 s off duty cycle, 8 min) increased MLCT yield from 36.1% ± 0.4% to 42.0% ± 0.7% (<i>p</i> < 0.05), with a lower reaction temperature (30 °C) and shorter duration (4 h), without compromising oil quality and lipase activity. These findings emphasize the importance of lipase selection, acyl migration, and US pre-treatment for enhancing oxidative sensitive DHA-enriched MLCT production, offering applications in nutritional and functional food formulations.</p>","PeriodicalId":17182,"journal":{"name":"Journal of the American Oil Chemists Society","volume":"102 6","pages":"1015-1028"},"PeriodicalIF":1.9,"publicationDate":"2025-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/aocs.12946","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144213949","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ripley Vaughan, Vermont Dia, Elizabeth Eckelkamp, Tong Wang
{"title":"Phospholipids precipitation from cheese whey","authors":"Ripley Vaughan, Vermont Dia, Elizabeth Eckelkamp, Tong Wang","doi":"10.1002/aocs.12945","DOIUrl":"https://doi.org/10.1002/aocs.12945","url":null,"abstract":"<p>Whey, the largest co-product source of the dairy industry, contains highly valued components such as phospholipids. For this work, cheddar cheese whey's phospholipids were precipitated using thermocalcic aggregation. The impact of calcium acetate concentration, pH, and temperature as processing conditions was evaluated. The results showed that the highest recovery of phospholipids was achieved at pH 6.5, a calcium acetate concentration of 50 mM, and at a temperature of 60 °C. Calcium acetate concentration and pH were statistically significant factors (<i>p</i> < 0.05), but temperature was not. For all treatments, the majority (95%–98%) of the protein remained in the supernatant. Under the identified best conditions, up to 92% of the phospholipids of the milk fat globule membrane were precipitated in the pellet, while 96% of the proteins remained in the supernatant. The salt recovery, that is, in the precipitate, was 53%, but decreasing the amount of salt used would result in incomplete recovery of the phospholipids. Gel electrophoresis showed that the majority of the globule membrane proteins were precipitated into the pellet, while the supernatant only contained major whey proteins. This procedure demonstrates a simple and cost-effective method to utilize cheese whey for phospholipids precipitation that can be further processed into a value-added food or nutraceutical ingredient. This technique, after more fully optimized, would allow for easy implementation in small cheese production facilities.</p>","PeriodicalId":17182,"journal":{"name":"Journal of the American Oil Chemists Society","volume":"102 6","pages":"1005-1014"},"PeriodicalIF":1.9,"publicationDate":"2025-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144213991","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}
Fernanda Furlan Goncalves Dias, Bianca Ferraz Teixeira, Ameer Y. Taha, Juliana Maria Leite Nobrega de Moura Bell
{"title":"Integrated impact of environmentally friendly extraction and recovery methods on almond oil quality: Insights from a lipidomic perspective","authors":"Fernanda Furlan Goncalves Dias, Bianca Ferraz Teixeira, Ameer Y. Taha, Juliana Maria Leite Nobrega de Moura Bell","doi":"10.1002/aocs.12941","DOIUrl":"https://doi.org/10.1002/aocs.12941","url":null,"abstract":"<p>Although aqueous and enzymatic extractions are solvent-free alternatives for extracting oil and proteins from almond flour, most of the extracted oil becomes entrapped in an emulsion and needs demulsification for recovery. To assess how extraction and demulsification methods impact yields and quality, a lipidomic approach was used to investigate the effects of aqueous and enzymatic extractions processes and recovery strategies, including pH-shift and protease addition, on almond oil quality. Liquid chromatography-mass spectrometry, conventional oxidation markers (peroxide value, p-anisidine), fatty acid profile, lipid class, total phenolic content and antioxidant activity were employed to determine the combined impact of extraction and recovery methods on lipid quality and composition. Peroxide value (1.8–2.0 mEq/kg oil), p-anisidine (0.1–0.4), and fatty acid composition of the oils (18:1 72%–75%, 18:2 22%–25%, 16:0 4%–5%) showed no significant changes based on extraction and recovery methods. However, oxylipin analysis demonstrated that the solvent-extracted oil had higher levels of 13-hydroxyoctadecadienoic acid (13-HODE) and 12(13)-epoxyoctadecenoic acid (12(13)-EpOME) compared to aqueous and enzymatically extracted oils, regardless of the demulsification method. Additionally, the solvent-extracted oil exhibited lower phenolic content and antioxidant capacity. This work provides valuable insights into how environmentally friendly extraction and recovery methods impact almond oil quality, contributing to processing optimization.</p>","PeriodicalId":17182,"journal":{"name":"Journal of the American Oil Chemists Society","volume":"102 6","pages":"995-1004"},"PeriodicalIF":1.9,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/aocs.12941","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144214083","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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":"Enhancing biodiesel production from palm fatty acid distillate: Impacts of co-solvent and molecular sieves under high-temperature conditions","authors":"Santichai Inrit, Supranee Patisuwan, Prodpran Khamon, Suparat Peaklin, Yutthapong Pianroj, Chatchawan Chotimarkorn, Sirusa Kritsanapuntu, Teerasak Punvichai","doi":"10.1002/aocs.12943","DOIUrl":"https://doi.org/10.1002/aocs.12943","url":null,"abstract":"<p>This study explores biodiesel production from palm fatty acid distillate (PFAD), focusing on optimizing the esterification process through the use of co-solvents and molecular sieves under high-temperature and high-pressure conditions. Palm fatty acid distillate, a low-value by-product of crude palm oil refining, was used as a feedstock with a free fatty acid (FFA) content of 88.4%. Esterification was conducted in a 400-L batch reactor at 130 °C and 15 bar, using methanol at a molar ratio of 1:3.7 and 1.834 wt% sulfuric acid as a catalyst. Co-solvents such as dichlorobenzene enhanced miscibility, while molecular sieves effectively removed water to increase reaction efficiency. The optimized process achieved a fatty acid methyl ester (FAME) yield of 97.44% within 30 min, meeting European Standard EN 14214:2003. The study highlights the potential of PFAD as an economical and sustainable biodiesel feedstock, with production costs of 0.45 USD per liter. This research contributes to the development of high-efficiency biodiesel production processes that reduce reliance on fossil fuels and support renewable energy initiatives.</p>","PeriodicalId":17182,"journal":{"name":"Journal of the American Oil Chemists Society","volume":"102 6","pages":"985-993"},"PeriodicalIF":1.9,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144213988","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}
{"title":"Optimization analysis of epoxidation of silkworm pupae oil with citric acid and eco-friendly oil coating on mild steel for corrosion protection","authors":"Dhanavel Nandhini, Meenakshi Halada Nandakrishnan, Ramarao Viswanatha","doi":"10.1002/aocs.12940","DOIUrl":"https://doi.org/10.1002/aocs.12940","url":null,"abstract":"<p>Silkworm pupae oil (SPO) with high amount of unsaturation due to rich in oleic acid and α-linolenic acids has been chosen for this investigation. Epoxidized silkworm pupae oil (ESPO) was produced by in situ generated peroxycitric with citric acid (CA) and hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>). Literature covering the topic of epoxidation, including the catalytic aspect, is vast. No review articles have been written on the synthesis of epoxides from SPO without the catalyst to the best of our knowledge. Here, CA itself behaves as an oxygen carrier without any catalyst and H<sub>2</sub>O<sub>2</sub> as an oxygen donor, which favors the epoxidation reaction. The epoxidation process was optimized by factors like temperature, time, and CA ratio. Fourier transform infrared (FTIR) analysis confirmed the presence of epoxy groups and the absence of (<span></span>CC<span></span>) bonds in ESPO. Optimal conditions for epoxidation were 70 °C, 0.75 mol/L CA, and 7 h, resulting in 92.1% double bond conversion (DBC) and 84.7% relative oxirane conversion (RC). The polymerized ESPO coated on mild steel (MS) exhibited enhanced corrosion resistance, with inhibition efficiency rising from 83.86% to 99.42% due to effective pore prevention and ion modification during curing.</p>","PeriodicalId":17182,"journal":{"name":"Journal of the American Oil Chemists Society","volume":"102 5","pages":"941-956"},"PeriodicalIF":1.9,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143914501","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}
{"title":"Structured lipids from virgin coconut oil and omega-3 fatty acids: Process optimization","authors":"Lanh Van Nguyen, Fereidoon Shahidi","doi":"10.1002/aocs.12942","DOIUrl":"https://doi.org/10.1002/aocs.12942","url":null,"abstract":"<p>Structured lipids (SLs) containing docosahexaenoic acid (DHA), eicosapentaenoic acid (EPA), and DHA + EPA were synthesized via enzymatic acidolysis using virgin coconut oil (VCO) as the substrate in <i>n</i>-hexane. Commercially available enzymes Lipozyme TL IM (produced from <i>Thermomyces lanuginosus</i>, a 1,3-specific lipase), Lipozyme IM60 (produced from <i>Rhizomucor miehei</i>, a 1,3-specific lipase), and non-specific lipase from <i>Candida rugosa</i> (powder) were used as biocatalysts. The <i>T. lanuginosus</i> lipase was chosen to evaluate the effects of various parameters on the incorporation of PUFAs into VCO and to optimize the process. As the enzyme load increased from 1% to 4%, the incorporation of omega-3 PUFAs also increased; however, it decreased when the enzyme load was further increased to 6%. The incorporation of these fatty acids increased with reaction time from 12 to 36 h but decreased at 48 h. Similarly, the incorporation increased with temperature from 35 to 45 °C, but decreased at 55 and 65 °C. The highest incorporation rates of DHA (18.91%), EPA (30.38%), and DHA + EPA (34.64%) were achieved at a mole ratio of 1:3 (VCO to DHA or EPA) or 1:3:3 (VCO to DHA + EPA), with a 4% enzyme load, 36 h incubation time, and a temperature of 45 °C. A central composite design (CCD) with three levels and three factors—reaction temperature (35, 45, and 55 °C), enzyme amount (2%, 4%, and 6%), and reaction time (24, 36, and 48 h)—was used to model and optimize the reaction conditions via response surface methodology (RSM). Under optimal conditions of 3.3% <i>T. lanuginosus</i> enzyme, 42.22 °C, and 33.38 h, the incorporation rates were 32.92% for DHA, 44.48% for EPA, and 47.04% for DHA + EPA in VCO.</p>","PeriodicalId":17182,"journal":{"name":"Journal of the American Oil Chemists Society","volume":"102 5","pages":"957-967"},"PeriodicalIF":1.9,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143914502","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}
Khalid M. Abed, Adeeb Hayyan, Hanee F. Hizaddin, Mohd Ali Hashim, Wan Jefrey Basirun, Yousef Mohammed Alanazi, Jehad Saleh, Bhaskar Sen Gupta, M. Zulhaziman M. Salleh
{"title":"Development of natural deep eutectic solvent-assisted liquid–liquid extraction method for soap removal from biodiesel: Optimization and kinetics","authors":"Khalid M. Abed, Adeeb Hayyan, Hanee F. Hizaddin, Mohd Ali Hashim, Wan Jefrey Basirun, Yousef Mohammed Alanazi, Jehad Saleh, Bhaskar Sen Gupta, M. Zulhaziman M. Salleh","doi":"10.1002/aocs.12939","DOIUrl":"https://doi.org/10.1002/aocs.12939","url":null,"abstract":"<p>The soap content in biodiesel is an important challenge during the production and purification processing of biodiesel. Natural deep eutectic solvents (NADES) have recently attracted considerable interest as an environmentally suitable substitute for traditional solvents in the biodiesel industry. This work investigates the soap removal from the contaminated biodiesel using NADES. Eight choline chloride-based deep eutectic solvents (DESs) were screened using the conductor-like screening model for real solvents (COSMO-RS) to identify the most suitable solvent for soap removal and were validated experimentally. The effect of NADES molar ratio, NADES:biodiesel ratio, mixing speed and extraction time on the extraction efficiency were investigated. COSMO-RS screening revealed that the malonic acid-based NADES possess higher soap elimination, and this is compatible with the experimental screening. The higher extraction efficiency of 99.18% was achieved under the optimum conditions of 1:3 of NADES molar ratio, 1:1 DES:biodiesel, 150 rpm and 15 min of extraction time. The soap removal followed the first-order kinetic equation with a rate constant of 0.183 min<sup>−1</sup>. This technique offers innovative and environmentally friendly routes for downstream processing of contaminated biodiesel.</p>","PeriodicalId":17182,"journal":{"name":"Journal of the American Oil Chemists Society","volume":"102 5","pages":"931-940"},"PeriodicalIF":1.9,"publicationDate":"2025-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143913994","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}