Journal of oleo science最新文献

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Friction Dynamics of Human Skin Treated with Oil under Nonlinear Motion 非线性运动下用油脂处理的人体皮肤的摩擦动力学
IF 1.5 4区 农林科学
Journal of oleo science Pub Date : 2024-02-02 DOI: 10.5650/jos.ess23166
Yuka Sakata, Hiroyuki Mayama, Yoshimune Nonomura
{"title":"Friction Dynamics of Human Skin Treated with Oil under Nonlinear Motion","authors":"Yuka Sakata, Hiroyuki Mayama, Yoshimune Nonomura","doi":"10.5650/jos.ess23166","DOIUrl":"https://doi.org/10.5650/jos.ess23166","url":null,"abstract":"</p><p>Moisturization causes physiological changes that improve the barrier function of human skin and mechanical changes, including skin friction characteristics. This study evaluated petrolatum- or silicone oil-treated human skin to determine the effect of moisturizing on the friction dynamics. The friction force on the human skin was measured using a contact probe with a sinusoidal motion. The contact probe was used to rub the skin of the upper arm of 20 subjects. The water content of the stratum corneum, softness, and barrier function of the skin were measured using a corneometer, cutometer, and tewameter, respectively. Both oils reduce the frictional force on the human skin. Simultaneously, silicone oil also reduced the delay time δ, which is the standardized time difference between the frictional force response to contact probe movement. Three typical friction patterns were also discovered, which were significantly changed by the treatment with oil. These changes were attributed to the lubrication effect and elimination of adhesion at the true contact point between the skin and the contact probe.</p>\u0000<p></p>\u0000<img alt=\"\" src=\"https://www.jstage.jst.go.jp/pub/jos/73/2/73_ess23166/figure/73_ess23166.jpg\"/>\u0000graphical abstract <span style=\"padding-left:5px;\">Fullsize Image</span>","PeriodicalId":16626,"journal":{"name":"Journal of oleo science","volume":"116 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2024-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139677580","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
Effects of Pretreatment on Stability of Peanut Oil Bodies and Functional Characteristics of Proteins Extracted by Aqueous Enzymatic Method 预处理对花生油体稳定性和水酶法提取蛋白质功能特性的影响
IF 1.5 4区 农林科学
Journal of oleo science Pub Date : 2024-02-02 DOI: 10.5650/jos.ess23128
Chen Liu, Fu-sheng Chen
{"title":"Effects of Pretreatment on Stability of Peanut Oil Bodies and Functional Characteristics of Proteins Extracted by Aqueous Enzymatic Method","authors":"Chen Liu, Fu-sheng Chen","doi":"10.5650/jos.ess23128","DOIUrl":"https://doi.org/10.5650/jos.ess23128","url":null,"abstract":"</p><p>Effects of dry and wet grind on peanut oil and protein yield, oil bodies (OBs) stability, fatty acid composition, protein composition and functional characteristics were systematically analyzed. Results showed that peanut oil and protein yields reached highest at dry grind 90 s (92.56% and 83.05%, respectively), while peanut oil and protein yields were 94.58% and 85.36%, respectively, at wet grind 120 s. Peanut oil and protein yields by wet grind was 2.18% and 2.78% higher than that of dry grind, respectively. Surface protein concentration (Г) and absolute value of zeta potential of OBs extracted by wet grind (WOBs) were 11.53 mg/m <sup>2</sup> and 18.51 mV, respectively, which were higher than OBs extracted by dry grind (DOBs), indicating stability of WOBs was higher than DOBs. Relative contents of oleic acid and linoleic acid in peanut oil, essential and hydrophobic amino acids in protein extracted by wet grind were higher than dry grind. There was little difference in protein composition between wet and dry grind, but thermal denaturation degree of protein obtained by wet grind was lower than dry grind. Solubility, oil retention, emulsion stability, foaming and foam stability of protein obtained by wet grind were better than dry grind. Results from this study provided theoretical basis for grind pretreatment selection of aqueous enzymatic method.</p>\u0000<p></p>\u0000<img alt=\"\" src=\"https://www.jstage.jst.go.jp/pub/jos/73/2/73_ess23128/figure/73_ess23128.jpg\"/>\u0000graphical abstract <span style=\"padding-left:5px;\">Fullsize Image</span>","PeriodicalId":16626,"journal":{"name":"Journal of oleo science","volume":"9 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2024-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139666382","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
Anti-collagenase, Anti-elastase, Anti-urease, and Anti-cancer Potentials of Isokaempferide as Natural Compound: In vitro and in silico Study 天然化合物 Isokaempferide 的抗胶原酶、抗弹性蛋白酶、抗尿素酶和抗癌潜力:体外和硅学研究
IF 1.5 4区 农林科学
Journal of oleo science Pub Date : 2024-02-02 DOI: 10.5650/jos.ess23176
Qian Yin, Hao Zhang, Ting Huang, Bin Liu, Sally Negm, Attalla F. El-kott
{"title":"Anti-collagenase, Anti-elastase, Anti-urease, and Anti-cancer Potentials of Isokaempferide as Natural Compound: In vitro and in silico Study","authors":"Qian Yin, Hao Zhang, Ting Huang, Bin Liu, Sally Negm, Attalla F. El-kott","doi":"10.5650/jos.ess23176","DOIUrl":"https://doi.org/10.5650/jos.ess23176","url":null,"abstract":"</p><p>One of the main goals of medicinal chemistry in recent years has been the development of new enzyme inhibitors and anti-cancer medicines. The isokaempferide' ability to inhibit the enzymes urease, elastase, and collagenase were also studied. The results showed that isokaempferide was the most effective compound against the assigned enzymes, with IC <sub>50</sub> values of 23.05 µM for elastase, 12.83 µM for urease, and 33.62 µM for collagenase respectively. It should be emphasized that natural compound was more effective at inhibiting some enzymes. Additionally, the compound was tested for their anti-cancer properties using colon, lung, breast cancer cell lines. The chemical activities of isokaempferide against urease, collagenase, and elastase were investigated utilizing the molecular docking study. The anti-cancer activities of the compound were evaluated against lung cancer cells such as SPC-A-1, SK-LU-1, 95D, breast cancer cells like MCF7, Hs 578Bst, Hs 319.T, and UACC-3133 cell lines, and colon cancer cell lines like CL40, SW1417, LS1034, and SW480. The chemical activities of isokaempferide against some of the expressed surface receptor proteins (EGFR, estrogen receptor, CD47, progesterone receptor, folate receptor, CD44, HER2, CD155, CXCR4, CD97, and endothelin receptor) in the mentioned cell lines were assessed using the molecular docking calculations. The results showed the probable interactions and their characteristics at an atomic level. The docking scores revealed that isokaempferide has a strong binding affinity to the enzymes and proteins. In addition, the compound formed powerful contact with the enzymes and receptors. Thus, isokaempferide could be potential inhibitor for enzymes and cancer cells.</p>\u0000<p></p>\u0000<img alt=\"\" src=\"https://www.jstage.jst.go.jp/pub/jos/73/2/73_ess23176/figure/73_ess23176.jpg\"/>\u0000graphical abstract <span style=\"padding-left:5px;\">Fullsize Image</span>","PeriodicalId":16626,"journal":{"name":"Journal of oleo science","volume":"7 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2024-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139678228","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
In vitro Evaluation Method of UV Protecting Ability of Sunscreens: Clarifying and Overcoming Problems to Develop New Method 防晒霜紫外线防护能力的体外评价方法:澄清和克服问题,开发新方法
IF 1.5 4区 农林科学
Journal of oleo science Pub Date : 2024-02-02 DOI: 10.5650/jos.ess23258
Kouichi Asakura, Akihiro Kuroda, Miyuki Fujishiro, Shoichi Yahagi
{"title":"In vitro Evaluation Method of UV Protecting Ability of Sunscreens: Clarifying and Overcoming Problems to Develop New Method","authors":"Kouichi Asakura, Akihiro Kuroda, Miyuki Fujishiro, Shoichi Yahagi","doi":"10.5650/jos.ess23258","DOIUrl":"https://doi.org/10.5650/jos.ess23258","url":null,"abstract":"</p><p>Factors influencing on <i>in vitro</i> evaluation of UV protecting ability of sunscreens were analyzed. It was found that any factors making the sunscreen layer spatially inhomogeneous, such as directional viscous fingering during the sunscreen application, dewetting of applied sunscreen layer, and the surface roughness of the standard PMMA plate, alter the UV transmittance. New application procedure and new type of flat hydrophilic plate were developed for inhibiting the generation of spatial inhomogeneity in applied sunscreen layer. The method created by the combination of these newly developed technologies succeeded in providing reliable and reproducible <i>in vitro</i> evaluation of UV protecting ability.</p>\u0000<p></p>\u0000<img alt=\"\" src=\"https://www.jstage.jst.go.jp/pub/jos/73/2/73_ess23258/figure/73_ess23258.jpg\"/>\u0000graphical abstract <span style=\"padding-left:5px;\">Fullsize Image</span>","PeriodicalId":16626,"journal":{"name":"Journal of oleo science","volume":"69 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2024-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139666376","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
Ginsenosides Inhibit the Proliferation of Lung Cancer Cells and Suppress the Rate of Metastasis by Modulating EGFR/VEGF Signaling Pathways 人参皂苷通过调节表皮生长因子受体/血管内皮生长因子信号通路抑制肺癌细胞增殖并抑制转移率
IF 1.5 4区 农林科学
Journal of oleo science Pub Date : 2024-02-02 DOI: 10.5650/jos.ess23120
Xuelian Yu, Qihu Wang, Zhaoxin Dai
{"title":"Ginsenosides Inhibit the Proliferation of Lung Cancer Cells and Suppress the Rate of Metastasis by Modulating EGFR/VEGF Signaling Pathways","authors":"Xuelian Yu, Qihu Wang, Zhaoxin Dai","doi":"10.5650/jos.ess23120","DOIUrl":"https://doi.org/10.5650/jos.ess23120","url":null,"abstract":"</p><p>Ginsenosides Rg3 and Rg5 obtained from <i>Panax</i> (ginseng) have shown significant anticancer activity via the PI3K-Akt signaling pathway. This study evaluated the anticancer and antimetastatic effects of a combination of Rg3 and Rg5 on lung cancer cells. A combination of Rg3 and Rg5 was treated for lung cancer cell line A549 and human lung tumor xenograft mouse model, and anti-metastatic effects on Matrigel plug implantation in mice. The combination of Rg3 and Rg5 showed potent antiproliferative effects on A549 cells with IC50 values of 44.6 and 36.0 μM for Rg3 and Rg5 respectively. The combination of Rg3 and Rg5 (30 µM each) showed 48% cell viability as compared to Rg3 (72% viability) and Rg5 (64% viability) at 30 µM concentrations. The combination of Rg3 and Rg5 induced apoptosis in A549 cells characterized by activation of caspase-9 and caspase-3 and cleavage of PARP, as well as suppression of the autophagic marker LC3A/B. The antitumoral potentials of the combination of Rg3 and Rg5 were ascertained in a lung tumor xenograft mouse model with high efficacy as compared to individual ginsenosides. The metastasislimiting properties of the combination of Rg3 and Rg5 were assessed in Matrigel plug implantation in mice which showed the potent efficacy of the combination as compared to individual ginsenoside. Mechanistically, the combination of Rg3 and Rg5 inhibited the expression of PI3K/Akt/mTOR and EGFR/VEGF signaling pathways in lung cancer cells. Results suggest that the combination of Rg3 and Rg5 suppressed the tumor cell proliferation in lung cancer cells and limited the rate of metastasis which further suggest that the combination has a significant effect as compared to the administration of single ginsenoside.</p>\u0000<p></p>\u0000<img alt=\"\" src=\"https://www.jstage.jst.go.jp/pub/jos/73/2/73_ess23120/figure/73_ess23120.jpg\"/>\u0000graphical abstract <span style=\"padding-left:5px;\">Fullsize Image</span>","PeriodicalId":16626,"journal":{"name":"Journal of oleo science","volume":"1 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2024-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139666491","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
Evaluation of Quality Properties of Brown Tigernut (Cyperus esculentus L.) Tubers from Six Major Growing Regions of China: A New Source of Vegetable Oil and Starch 中国六大产区褐花生(Cyperus esculentus L.)块茎的质量特性评价:植物油和淀粉的新来源
IF 1.5 4区 农林科学
Journal of oleo science Pub Date : 2024-02-02 DOI: 10.5650/jos.ess23123
Zhong-Wei Wu, Hong-Rui Huang, Shu-Qiang Liao, Xiao-Shuang Cai, Hua-Min Liu, Yu-Xiang Ma, Xue-De Wang
{"title":"Evaluation of Quality Properties of Brown Tigernut (Cyperus esculentus L.) Tubers from Six Major Growing Regions of China: A New Source of Vegetable Oil and Starch","authors":"Zhong-Wei Wu, Hong-Rui Huang, Shu-Qiang Liao, Xiao-Shuang Cai, Hua-Min Liu, Yu-Xiang Ma, Xue-De Wang","doi":"10.5650/jos.ess23123","DOIUrl":"https://doi.org/10.5650/jos.ess23123","url":null,"abstract":"</p><p>Tigernut has been recognized as a promising resource for edible oil and starch. However, the research on the quality characteristics of tigernut from different regions is lagging behind, which limits the application of tigernut in food industry. Tigernut tubers were obtained from six major growing regions in China, and the physicochemical properties of their main components, oil and starch, were characterized. Tigernut tubers from Baoshan contained the most oil (30.12%), which contained the most β-carotene (130.4 µg/100 g oil) due to high average annual temperature. Gas chromatography analysis and fingerprint analysis results indicated that tigernut oil (TNO) consists of seven fatty acids, of which oleic acid is the major component. Changchun TNO contained the least total tocopherols (6.04 mg/100 g oil) due to low average annual temperature. Tigernut tubers from Chifeng (CF) contained the most starch (34.85%) due to the large diurnal temperature range. Xingtai starch contained the most amylose (28.4%). Shijiazhuang starch showed the highest crystallinity (19.5%). Anyang starch had the highest pasting temperature (76.0°C). CF starch demonstrated superior freeze-thaw stability (syneresis: 50%) due to low mean annual precipitation. The results could be further applied to support tigernut industries and relevant researchers that looks for geographical origin discrimination and improvements on tigernut quality, with unique physicochemical and technological properties.</p>\u0000<p></p>\u0000<img alt=\"\" src=\"https://www.jstage.jst.go.jp/pub/jos/73/2/73_ess23123/figure/73_ess23123.jpg\"/>\u0000graphical abstract <span style=\"padding-left:5px;\">Fullsize Image</span>","PeriodicalId":16626,"journal":{"name":"Journal of oleo science","volume":"31 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2024-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139677583","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
Synthesis and Mesomorphic Properties of Liquid Crystals with 5-(4-Alkoxyphenylethynyl)tropolone 5-(4-烷氧基苯乙炔基)三苯丙酮液晶的合成与介形特性
IF 1.5 4区 农林科学
Journal of oleo science Pub Date : 2024-02-02 DOI: 10.5650/jos.ess23216
Kanji Kubo, Daiki Kuribayashi, Seiji Ujiie, Akira Mori
{"title":"Synthesis and Mesomorphic Properties of Liquid Crystals with 5-(4-Alkoxyphenylethynyl)tropolone","authors":"Kanji Kubo, Daiki Kuribayashi, Seiji Ujiie, Akira Mori","doi":"10.5650/jos.ess23216","DOIUrl":"https://doi.org/10.5650/jos.ess23216","url":null,"abstract":"</p><p>New troponoid liquid crystals with 5-(4-alkoxyphenylethynyl)tropolone cores were synthesized. The 5-(4-alkoxyphenylethynyl)tropolones were obtained by the palladium-catalyzed cross-coupling of 5-iodotropolone with 4-alkoxyphenylacetylenes. The 2-alkoxy-5-(4-alkoxyphenylethynyl)tropones (1A) showed enantiotropic smectic phases, such as smectic A, C, and B. The 2-(4-alkoxy)benzoyloxy-5-(4-alkoxyphenylethynyl)tropones (1B) had enantiotropic nematic and smectic C phases. The 2-alkoxytropone derivatives (1A) had higher clearing temperatures and lower melting points than the corresponding benzene derivatives (2A). However, the 2-(4-alkoxybenzoyl)tropone derivatives (1B) had lower clearing temperatures and higher melting points than the corresponding benzene derivatives (2B).</p>\u0000<p></p>\u0000<img alt=\"\" src=\"https://www.jstage.jst.go.jp/pub/jos/73/2/73_ess23216/figure/73_ess23216.jpg\"/>\u0000graphical abstract <span style=\"padding-left:5px;\">Fullsize Image</span>","PeriodicalId":16626,"journal":{"name":"Journal of oleo science","volume":"3 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2024-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139678030","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
Exploring Diacylglycerol Oil-Based Oleogels as Effective Stabilizers in Peanut Butter: Performance, Structural Insights, and Sensory Evaluation 探索二酰甘油油基油凝胶作为花生酱中的有效稳定剂:性能、结构见解和感官评估
IF 1.5 4区 农林科学
Journal of oleo science Pub Date : 2024-02-02 DOI: 10.5650/jos.ess23122
Siliang Ding, Xiaohan Chen, Bo Ouyang, Bo Yang, Weifei Wang, Yonghua Wang
{"title":"Exploring Diacylglycerol Oil-Based Oleogels as Effective Stabilizers in Peanut Butter: Performance, Structural Insights, and Sensory Evaluation","authors":"Siliang Ding, Xiaohan Chen, Bo Ouyang, Bo Yang, Weifei Wang, Yonghua Wang","doi":"10.5650/jos.ess23122","DOIUrl":"https://doi.org/10.5650/jos.ess23122","url":null,"abstract":"</p><p>In the pursuit of reducing oil separation in peanut butter, oleogels synthesized from diacylglycerol (DAG)-rich peanut oils, using glycerol monostearate (GMS) as the gelator, were examined as alternative stabilizers. In comparison to triacylglycerol (TAG)-rich peanut oils, the DAG oil-based oleogels exhibited better oil-binding capacities across increasing GMS concentrations. Intriguingly, thermal and rheological assessments pointed to a weaker network structure in DAG oil oleogels, as evidenced by their lower crystallization temperatures and reduced viscoelastic parameters (G' and G''). Insight from infrared spectroscopy revealed that this could stem from heightened intermolecular hydrogen bonding between the DAG oil and the gelator. When applied to peanut butter, DAG oil oleogels demonstrated efficacy in minimizing oil separation. Extended storage trials affirmed the long-term stability of peanut butter formulations incorporating these oleogels. Furthermore, sensory evaluations by panelists underscored favorable impressions, suggesting potential consumer acceptance. Overall, this study illuminates the promising role of DAG oleogels as effective, alternative stabilizers in peanut butter formulations.</p>\u0000<p></p>\u0000<img alt=\"\" src=\"https://www.jstage.jst.go.jp/pub/jos/73/2/73_ess23122/figure/73_ess23122.jpg\"/>\u0000graphical abstract <span style=\"padding-left:5px;\">Fullsize Image</span>","PeriodicalId":16626,"journal":{"name":"Journal of oleo science","volume":"300 1 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2024-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139666498","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
Enhanced Z-Isomerization of Astaxanthin in Paracoccus carotinifaciens via Microwave Drying 通过微波干燥提高副球藻中虾青素的 Z-异构化能力
IF 1.5 4区 农林科学
Journal of oleo science Pub Date : 2024-02-02 DOI: 10.5650/jos.ess23093
Yukiko Osawa, Daichi Kuwahara, Masaki Honda
{"title":"Enhanced Z-Isomerization of Astaxanthin in Paracoccus carotinifaciens via Microwave Drying","authors":"Yukiko Osawa, Daichi Kuwahara, Masaki Honda","doi":"10.5650/jos.ess23093","DOIUrl":"https://doi.org/10.5650/jos.ess23093","url":null,"abstract":"</p><p>The effects of microwave drying conditions of a <i>Paracoccus carotinifaciens</i> culture solution on astaxanthin <i>Z</i>-isomerization and degradation were investigated. The microwave drying significantly increase the ratio of astaxanthin <i>Z</i>-isomers, and the higher the microwave power and the longer the drying time, the higher the total <i>Z</i>-isomer ratio of astaxanthin, but such conditions also accelerated astaxanthin degradation. We found that the addition of powdered oils enhanced the <i>Z</i>-isomerization reaction. For example, when the <i>P. carotinifaciens</i> culture solution was dried at 1000 W power for 5 min without and with powdered rapeseed oil, total <i>Z</i>-isomer ratios of astaxanthin in resulting dried powder were 14.9 and 47.4%, respectively. Furthermore, the storage test of the dried <i>P. carotinifaciens</i> powder showed that astaxanthin <i>Z</i>- isomers were stable at 4℃ in a low-oxygen atmosphere. As astaxanthin <i>Z</i>-isomers have greater bioavailability and potentially exhibit superior biological activities than the all-<i>E</i>-isomer, the dried <i>P. carotinifaciens</i> powder obtained by the method of this study is expected to be used as a value-added astaxanthin source.</p>\u0000<p></p>\u0000<img alt=\"\" src=\"https://www.jstage.jst.go.jp/pub/jos/73/2/73_ess23093/figure/73_ess23093.jpg\"/>\u0000graphical abstract <span style=\"padding-left:5px;\">Fullsize Image</span>","PeriodicalId":16626,"journal":{"name":"Journal of oleo science","volume":"10 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2024-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139677810","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
Haplophyllum tuberculatum (Forssk.) A. Juss Essential Oils: Seasonal Contents Variation, Bioactivity of the Traditionally-favored, High-yield and Frequent-use Summer Season Oil Haplophyllum tuberculatum (Forssk.) A. Juss 精油:传统上最受欢迎、产量高、使用频率高的夏季精油的季节含量变化和生物活性
IF 1.5 4区 农林科学
Journal of oleo science Pub Date : 2024-01-16 DOI: 10.5650/jos.ess23055
Fatma Elshibani, Abdullah Alamami, Riaz Khan, Ghassan M. Sulaiman, Hamdoon A. Mohammed
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