Journal of oleo science最新文献

{"title":"Synergistic Nanoarchitectonics of Carbon Aerogel/TiO₂-NiO@PANi Modified Electrode for Highly Sensitive Voltammetric Detection of Diazinon Pesticide Endocrine Disruptor.","authors":"Irwan Irwan, Rezky Dwi Fitriani, Muhammad Nurdin, Thamrin Azis","doi":"10.5650/jos.ess25215","DOIUrl":"10.5650/jos.ess25215","url":null,"abstract":"<p><p>This study reports the development of a highly sensitive and cost-effective voltammetric sensor based on a carbon aerogel/TiO₂-NiO@PANi modified electrode for the detection of diazinon, an endocrine-disrupting organophosphate pesticide. Carbon aerogel (CA) was synthesized from palm shell waste and served as a high-surface-area conductive scaffold, while TiO₂-NiO nanoparticles acted as the electroactive catalytic sites, and polyaniline (PANi) provided additional electron conduction pathways. The resulting composite was characterized by XRD, SEM, and EDX analyses, confirming homogeneous dispersion of TiO₂-NiO nanoparticles and the successful incorporation of PANi. Cyclic voltammetry (CV) studies revealed that CA/TiO₂-NiO@PANi exhibited enhanced redox peak currents and reduced peak-to-peak separation (ΔEp), indicating improved electron transfer kinetics compared to unmodified CA and CA/TiO₂-NiO electrodes. The developed sensor demonstrated a linear electrochemical response to diazinon concentrations in the range of 0.1-1.0 ppm, with a regression equation of Ipa = 164.66[DZN] - 34.937 (R² = 0.997) and a limit of detection (LOD) of 0.0182 ppm. These findings suggest that the CA/TiO₂-NiO@PANi electrode offers a promising platform for rapid, reproducible, and highly sensitive non-enzymatic detection of diazinon, providing an environmentally friendly approach for monitoring pesticide contamination in agricultural and environmental samples.</p>","PeriodicalId":16626,"journal":{"name":"Journal of oleo science","volume":"75 3","pages":"357-366"},"PeriodicalIF":1.8,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147326190","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":"Multi-Target Antidiabetic Potentials of Xylocarpus mekongensis: In Vivo Efficacy, Enzyme Inhibition, and Molecular Docking.","authors":"Rabindra Nath Acharyya, Md Abid Muktadir Risha, Shrabanti Dev, Katsuhiko Ariga, Asish Kumar Das, Lok Kumar Shrestha","doi":"10.5650/jos.ess25270","DOIUrl":"https://doi.org/10.5650/jos.ess25270","url":null,"abstract":"<p><p>Xylocarpus mekongensis Pierre (Meliaceae), locally known as \"Poshur\" is a mangrove plant traditionally used in South and Southeast Asia for the management of diabetes and related disorders. This study comprehensively evaluated the phytochemical composition, safety, antidiabetic efficacy, enzymatic inhibition, and in-silico molecular docking analysis of its ethanolic bark extract. HPLC-DAD profiling identified six major phenolic compounds - catechin hydrate, catechol, (-) epicatechin, syringic acid, trans-ferulic acid, and trans-cinnamic acid. Acute and subacute toxicity assessments in Swiss albino mice (following OECD guidelines) confirmed its safety up to 3000 mg/kg without any physiological or behavioral alterations. In the oral glucose tolerance test (OGTT), the extract significantly reduced blood glucose levels in a dose-dependent manner. In streptozotocin (STZ)-induced diabetic mice, daily oral administration of the extract (250 and 500 mg/kg) markedly reduced fasting blood glucose, restored body weight, and normalized hepatic, renal, and lipid biomarkers comparable to glibenclamide. Moreover. the extract also demonstrated potent α-glucosidase inhibitory activity (IC₅₀ = 0.420 mg/mL), indicating delayed intestinal glucose absorption. Molecular docking revealed strong binding affinities of these compounds-particularly catechin hydrate and (-) epicatechin demonstrated strong binding affinities with key diabetic targets, including sulfonylurea receptor 1 (SUR1), peroxisome proliferator-activated receptor gamma (PPAR-γ), dipeptidyl peptidase-4 (DPP4), glucokinase, and AMP-activated protein kinase (AMPK), suggesting multi-targeted modulation of insulin secretion, sensitivity, and glucose utilization. These findings provide the first comprehensive mechanistic validation of the traditional use of X. mekongensis and highlight its polyphenolic constituents as promising natural leads for developing multi-target antidiabetic therapeutics.</p>","PeriodicalId":16626,"journal":{"name":"Journal of oleo science","volume":"75 4","pages":"427-442"},"PeriodicalIF":1.8,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147592888","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":"CONTENTS Volume 75, Issue 2, February 2026.","authors":"","doi":"10.5650/jos.75contents2","DOIUrl":"https://doi.org/10.5650/jos.75contents2","url":null,"abstract":"","PeriodicalId":16626,"journal":{"name":"Journal of oleo science","volume":"75 2","pages":"Contents2"},"PeriodicalIF":1.8,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146100388","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":"Enzymatic Potential and Antifungal Susceptibility Profile of Aspergillus terreus Against Essential Oils.","authors":"Saba Sana, Nida Sana, Areeba Nadeem, Layyaba Nazir, Rukhma Sattar, Sikander Ali, Najeeb Ullah, Rania Ali El Hadi Mohamed, Nawal Al-Hoshani, Maher S Alwethaynani, Fakhria A Al-Joufi, Tariq Aziz","doi":"10.5650/jos.ess25176","DOIUrl":"https://doi.org/10.5650/jos.ess25176","url":null,"abstract":"<p><p>Aspergillus terreus is a pathogen as well as an industrial organism. Current study deals with in vitro evaluation of A. terreus as a potential candidate for starch-based industries and susceptibility of toxigenic isolates to plant essential oils. Conventionally identified A. terreus soil isolates (n=25) were screened for mycotoxin production by TLC. Non- toxigenic isolates were selected for starch hydrolysis using starch agar. Toxigenic A. terreus were selected for antifungal activity of plant-derived essential oils (Nigella sativa, Elettaria cardamomum, Eucalyptus globulus, Cinnamomum verum Cuminum cyminum, and Syzygium aromaticum) by agar well diffusion and micro-broth dilution method. The lowest minimum inhibitory concentration (MIC ≥ 0.65±0.22µL/mL) was observed for Cuminum cyminum. So, it was used for inhibitory effect on growth and toxin production in broken grains. Cuminum cyminum EO inhibited the growth of A. terreus (0.00±0.00 cfu/g) in inoculated group and OTA production was also close to uninoculated group. Starch hydrolysis to colony diameter ratio helped for selection of isolates for further experiments. In starch hydrolysis, two isolates AST-01 and AST-02 produced highest ratios, which were 2.25±.08 and 1.76±.04 respectively. Influence of maize flour, wheat bran and rice husk with varying concentration, incubation temperature and pH were evaluated on starch hydrolysis potential. The hydrolytic potential quantified by dinitorosalisylic acid (DNS) method. A. terreus AST-02 had the highest hydrolytic potential (102.96±2.61IU) under incubation of 3% wheat bran at 37 °C and pH 6.0. It is concluded that A. terreus is a potential candidate for starch-based industries and further crop contamination by toxigenic species could be curtailed using essential oil as a feed preservative.</p>","PeriodicalId":16626,"journal":{"name":"Journal of oleo science","volume":"75 1","pages":"21-32"},"PeriodicalIF":1.8,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145900570","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":"Characterization of Essential Oil Composition, Polymethoxyflavones, Total Carotenoids, and Sensory Properties of Japanese and Taiwanese Hirami Lemon (Citrus depressa Hayata).","authors":"Momoko Shimomura, Yoshio Tamura, Yonathan Asikin, Moena Oe, Masashi Yamamoto, Fumimasa Mitsube, Shu-Yen Lin, Mika Arakaki, Fitriyono Ayustaningwarno, Kensaku Takara, Koji Wada","doi":"10.5650/jos.ess25234","DOIUrl":"https://doi.org/10.5650/jos.ess25234","url":null,"abstract":"<p><p>Hirami lemon (Citrus depressa Hayata) is a small citrus plant native to southern Japan and Taiwan. This study distinguishes the essential oil composition, polymethoxyflavones (PMFs), total carotenoids, and sensory characteristics of Hirami lemons from Japan (Kagoshima and Okinawa) and Taiwan. The mature fruit essential oils of 23 evaluated strains (5 from Kagoshima, 16 from Okinawa, and 2 from Taiwan) primarily contained volatile organic compounds (VOCs), with limonene and γ-terpinene being predominant (40.4-76.2 % and 9.7-29.3 %, respectively). Distinct geographical signatures were also observed-piperitone and octanal in Kagoshima strains, ethyl dodecanoate and ethyl decanoate in Okinawan strains, and 2-hexenal and phenylacetaldehyde in Taiwanese strains-implying a potent aroma distinctiveness of each cultivation region. Nantou (Taiwan), Shikunin spicy (Kagoshima), and Izumi kugani (Okinawa) had higher PMF concentrations, including nobiletin and tangeretin, whereas Shikunin sweet from Kagoshima exhibited notably higher total carotenoid content than the other strains. Furthermore, variations in total soluble solids and titratable acidity were correlated with perceived differences in sweetness and sourness, while VOCs influenced aroma traits, including citrus, fruity, herbal, and green notes, refining overall flavor perception. These findings offer important implications for breeding strategies and product diversification of Japanese and Taiwanese Hirami lemons.</p>","PeriodicalId":16626,"journal":{"name":"Journal of oleo science","volume":"75 4","pages":"465-476"},"PeriodicalIF":1.8,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147592713","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":"Analysis of the Attractive Effect of Aroma Compounds from Angelica acutiloba Kitagawa on the Winged Aphid Aphis gossypii Glover (Hemiptera: Aphididae).","authors":"Shiro Ezoe, Keiko Kurokawa, Toshio Tanaka, Katsumi Nakano, Yoshihiko Akakabe","doi":"10.5650/jos.ess25262","DOIUrl":"https://doi.org/10.5650/jos.ess25262","url":null,"abstract":"<p><p>Angelica acutiloba Kitagawa roots are used as ingredients in many herbal medicines in Japan. This study conducted field experiments using sticky traps during the growing period from 2023 to 2025 to assess the behavioral responses of aphids in relation to the aroma compounds from A. acutiloba Kitagawa. In a preliminary trial in 2023, essential oils (EOs) from A. acutiloba Kitagawa leaves were applied to sticky traps, which captured more winged aphids than untreated control traps. In 2024, although it was likely to attract the aphids with the EO-treated traps, no significant differences were observed between the EO-treated and control traps owing to the extremely low small number of aphids. However, in 2025, aphid abundance increased and significantly more aphids were captured in the EO-treated traps than in the untreated traps. Most of the captured winged aphids were Aphis gossypii Glover (Hemiptera: Aphididae). In a follow-up experiment, traps treated with (Z)-ligustilide, isolated from the EOs, captured significantly more aphids than the control traps. A two-choice response test using a Y-tube olfactometer showed no significant behavioral responses (such as attraction or avoidance) toward the wingless aphid A. gossypii. The findings of the present study suggest that developing the EO- or (Z)-ligustilide treated traps to capture winged aphids on A. acutiloba may be an environmentally friendly and effective way to manage these insects.</p>","PeriodicalId":16626,"journal":{"name":"Journal of oleo science","volume":"75 4","pages":"491-497"},"PeriodicalIF":1.8,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147592717","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":"Folliculi sennae Extract: A Multifunctional Approach to Alzheimer's and Diabetes.","authors":"Turkan Guney, Sevgi Altin, Emrah Dikici, Mesut Isik, Ekrem Koksal","doi":"10.5650/jos.ess25242","DOIUrl":"https://doi.org/10.5650/jos.ess25242","url":null,"abstract":"<p><p>Alzheimer's disease (AD) and type 2 diabetes mellitus (T2DM) exhibit overlapping molecular pathways characterized by oxidative imbalance and enzyme dysfunction. This study provides a comprehensive evaluation of the multifunctional potential of Folliculi sennae (F. sennae) ethanol extract as a natural therapeutic agent targeting these disorders. Phenolic profiling using LC-MS/MS revealed abundant bioactive compounds, including quercetin, luteolin, kaempferol, and gallic acid, with high linearity and reproducibility. The extract exhibited moderate antioxidant activity across DPPH, ABTS, FRAP, and CUPRAC assays, highlighting its redox-modulating capacity. Importantly, enzyme inhibition assays demonstrated notable inhibition of acetylcholinesterase (AChE, IC₅₀ = 10.34 µg/mL), butyrylcholinesterase (BChE, IC₅₀ = 7.72 µg/mL), and α-glucosidase (IC₅₀ = 6.66 µg/mL), indicating potential neuroprotective and antidiabetic effects. These findings suggest that F. sennae orchestrates a synergistic interplay between antioxidant defense and targeted enzymatic inhibition, positioning it as a promising multitarget natural candidate for managing oxidative stress-linked neurodegenerative and metabolic disorders. The study lays the biochemical groundwork for future translational research exploring F. sennae as a safe, plant-based therapeutic intervention.</p>","PeriodicalId":16626,"journal":{"name":"Journal of oleo science","volume":"75 4","pages":"455-464"},"PeriodicalIF":1.8,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147592776","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":"Investigation of the Chemical Composition and Effect of Amphiphilic Additives on Iridescent Emulsions of a Long-chain Amidoamine Derivative for Color Tuning.","authors":"Chihiro Fujiwara, Yurika Saito, Daichi Haneda, Takeshi Kawai","doi":"10.5650/jos.ess25286","DOIUrl":"https://doi.org/10.5650/jos.ess25286","url":null,"abstract":"<p><p>Structural colors observed in nature have attracted considerable scientific interest and inspired the development of artificial coloring materials based on periodic nanostructures. Although numerous structural color materials have been proposed, reports on all-liquid systems, which can be incorporated into devices of arbitrary shapes, remain limited. We previously demonstrated that all-liquid emulsions composed of a long-chain amidoamine derivative (C18AA) and tetraoctylammonium bromide (TOAB) exhibit structural coloration within two temperature regions. For the formation of such coloring emulsions, the development of a stable interfacial layer of C18AA adsorbed at the toluene-water interface is crucial. However, it remains unclear whether other amphiphilic compounds can contribute to the formation of this interfacial layer. In this study, the effects of adding different amphiphilic compounds on the coloring behavior of C18AA emulsions was investigated, and their incorporation into the interfacial layer of C18AA was explored. Stearic acid, octadecylamine, and octadecanol did not considerably affect the coloring behavior. In contrast, C18AOH, in which the terminal amine group of C18AA is replaced by a hydroxyl group, could be incorporated into the C18AA interfacial layer. This insertion increased the toluene-water interfacial area, resulting in a blue shift of the observed color. Similar incorporation effects were observed for C16AOH and C14AOH, which have shorter alkyl chains. These findings can facilitate the color and thermal response tuning of all-liquid structural color emulsions based on interfacial engineering.</p>","PeriodicalId":16626,"journal":{"name":"Journal of oleo science","volume":"75 4","pages":"415-426"},"PeriodicalIF":1.8,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147592872","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":"Mixed State Diagrams of Rice Starch/glycerol/water Ternary Systems.","authors":"Kaya Torii, Yota Oda, Atsuro Takahashi, Rui Kawana, Mitsumasa Kimata, Tomonori Koda, Hiroko Yano, Akihiro Nishioka, Yoshimune Nonomura","doi":"10.5650/jos.ess25238","DOIUrl":"https://doi.org/10.5650/jos.ess25238","url":null,"abstract":"<p><p>Amorphous rice starch/glycerol/water ternary systems are used in food, cosmetics, and functional materials. In the present study, we investigated the water adsorption ability of crystalline and amorphous rice starches and the mixed state of rice starch/glycerol/water ternary systems. The effect of amorphization on the mixed state was evaluated with thermogravimetric analysis (TGA) and wide-angle X-ray diffraction measurement (XRD). When amorphous rice starch was mixed with water and glycerol (40-80 wt%), the funicular and capillary states were observed: the funicular state is a dry state where solid and liquid form a continuous phase, and the capillary state is a sticky state where only the liquid is the continuous phase. This was attributed to the greater number of free hydroxyl groups in amorphous rice starch, which enhanced its affinity to hydroxyl groups. Amorphous rice starch systems exhibited a water evaporation temperature 14 °C higher than crystalline rice starch systems. Furthermore, when the mixed system contained amorphous rice starch and glycerol, the funicular region was expanded. A glycerol molecule has three hydroxyl groups, which enhance the adhesive force between starch particles and increase viscosity. These findings are useful for designing formulations for various products utilizing mixtures of rice starch and glycerol.</p>","PeriodicalId":16626,"journal":{"name":"Journal of oleo science","volume":"75 4","pages":"443-454"},"PeriodicalIF":1.8,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147592891","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":"Triacylglycerols Containing Acetyl Group in Edible Oils and Fats.","authors":"Mizuki Amano, Yasunari Kato, Tomoyo Nakagawa-Nakamura, Tomohiko Nishino, Toshiharu Nagai","doi":"10.5650/jos.ess26004","DOIUrl":"https://doi.org/10.5650/jos.ess26004","url":null,"abstract":"<p><p>Most triacylglycerols (TAGs) in edible oils and fats are composed of long-chain fatty acids with 16 to 18 carbon atoms. In this study, we report the first identification of dioleoylacetylglycerol (OOAc), a TAG containing an acetyl group (AcTAG) in canola oil. AcTAG has been reported to exist in plants of the Akebia genus. In the process of analyzing minor components in canola oil using liquid chromatography / mass spectrometry (LC/MS), we found that OOAc was present in canola oil. Furthermore, when considering other edible oils (soybean oil, rice bran oil, olive oil, corn oil, palm oil, and lard), they contained OOAc at levels ranging from 9 to 210 mg/kg. Canola oil was found to contain a relatively high amount of OOAc. Although OOAc was initially detected in refined canola oil, a similar amount of OOAc was confirmed in unrefined oil extracted from canola seeds, suggesting that OOAc is naturally present in canola seeds and is not generated by refining processes such as neutralization, bleaching, and deodorization. The OOAc content varied depending on the origin of edible oils and fats. Subsequent LC/MS analysis of the edible oils and fats suggested the presence of other AcTAGs in addition to OOAc. This suggests that acetic acid could be generated from AcTAGs by hydrolyzing the oils and fats above. Therefore, measurement of acetic acid in edible oils was performed using high-performance liquid chromatography (HPLC) equipped with an electrical conductivity detector, revealing the presence of acetic acid in commonly used edible oils. The results showed that acetic acid was present in the abovementioned edible oils and fats at levels ranging from approximately 40 to 110 mg/kg. In particular, canola oil and soybean oil were found to contain higher amounts of acetic acid compared to other oils.</p>","PeriodicalId":16626,"journal":{"name":"Journal of oleo science","volume":"75 5","pages":"513-523"},"PeriodicalIF":1.8,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147839209","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}