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Rhizobium-Based Biofertilizer for Rational Use of Mineral Nitrogen Fertilizers: Case Study of Common Bean Cultivation in Senegal
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作者 Adama Diouf 《American Journal of Plant Sciences》 2025年第1期133-145,共13页
Synthetic fertilizers are widely used to address the urgent challenge of ensuring food supplies for a growing world population in the context of climate change. However, their industrial production and use in agricult... Synthetic fertilizers are widely used to address the urgent challenge of ensuring food supplies for a growing world population in the context of climate change. However, their industrial production and use in agriculture have a negative impact on the environment and consequently on human health. While chemical fertilizers may not have to be abandoned in agricultural production systems, limiting their use could help to make agriculture sustainable and resilient to climate change. In Senegal, the level of mineral fertilizers used in market gardening has become alarming in the Niayes area. As a result, microbial biotechnologies have been promoted for biofertilizer production of common bean (Phaseolus vulgaris L.) cultivation. Rhizobial inoculums have thus been used to reduce the rate of chemical nitrogen fertilizers being applied in cropping systems. Several investigations in the laboratory, on experimental stations and in the field have shown a possibility of a significant reduction in the use of nitrogen fertilizers in common bean production. Conventional mineral fertilization use can be reduced from over 120 kg N/ha to 20 kg N/ha. This contributes both to a very significant reduction in the application rate with the same level of yield and to an improvement in the standard of living. In addition, the environmental impact of using chemical fertilizers can be mitigated. This study is a contribution to the promotion of biofertilizers adoption in agricultural systems. 展开更多
关键词 Sustainable Agriculture Mineral Fertilizer Inoculation RHIZOBIUM Common bean
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Influence of Fermentation and Drying Practices on the Ochratoxin A Content of Cocoa Beans from the Main Production Areas in Côte d’Ivoire
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作者 Brou Julien Kouakou Kouadio Emmanuel N’goran Koffi Christophe Kobenan 《Advances in Microbiology》 2025年第1期70-79,共10页
Côte d’Ivoire has been the world’s leading producer of cocoa beans for several decades. Apart from this production performance, the quality of the beans, which are mainly exported to the major chocolate-making ... Côte d’Ivoire has been the world’s leading producer of cocoa beans for several decades. Apart from this production performance, the quality of the beans, which are mainly exported to the major chocolate-making countries, presents a quality problem to the point of suffering a discount on the international market. One of these quality problems is the content of ochratoxin A, a mycotoxin produced by fungi. Finally, to verify the level of contamination in beans produced in Côte d’Ivoire, a study was carried out. It consisted of collecting information on fermentation and drying times (The two major post-harvest operations) and collecting beans, which were analyzed by electrophoresis using the High Performance Liquid Chromatography (HPLC) method. The results obtained show ochratoxin A contents of between 0.05 µg/kg and 0.17 µg/kg. The general level of contamination is therefore very low and below the tolerable limit which is 2 µg/kg. In addition, the correlative study between the fermentation and drying times of the beans revealed no significant influence (p < 0.01) of the duration of these operations on the level of ochratoxin A contamination. Major contamination can occur after post-harvest activities carried out by producers. This is certainly due to the development of fungi responsible for the production of ochratoxin A during the period of storage and marketing of cocoa beans in conditions of high humidity in storage enclosures. Producers need to be made more aware of the need to ensure that cocoa beans are properly dried and stored in dry areas to avoid moisture build-up, which is a source of mould growth and ochratoxin A production. 展开更多
关键词 Ochratoxin A Cocoa beans FERMENTATION Drying Practices Cote d’Ivoire Mycotoxins HPLC Analysis Fungal Contamination Post-Harvest Operations Food Safety
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Hesperidin encapsulation in mung bean isolate protein-dextran conjugate-stabilized nanoemulsions:Preparation and characterization
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作者 Zixi Xue Xianrong Xiang +3 位作者 Jiaying Tang Wen Qin Guohua Zhang Qing Zhang 《Grain & Oil Science and Technology》 2025年第4期247-260,共14页
Encapsulation and protection of hesperidin(HES)in mung bean protein isolate(MPI)-dextran(DX)conjugatestabilized nanoemulsions(MDC NEs)were investigated in this study.The degree of grafting of MDC prepared by a dry-hea... Encapsulation and protection of hesperidin(HES)in mung bean protein isolate(MPI)-dextran(DX)conjugatestabilized nanoemulsions(MDC NEs)were investigated in this study.The degree of grafting of MDC prepared by a dry-heating method reached 39.70%±0.01% under the optimal conditions of MPI/DX mass ratio 1:2.3,reaction temperature 58.8℃,and reaction time 4 d.Moreover,the analyses of Fourier infrared spectroscopy,intrinsic fluorescence spectroscopy,surface hydrophobicity,and thermal stability further confirmed the covalent grafting of dextran onto MPI molecules.When encapsulated in MDC NEs at 80 MPa for three times by highpressure homogenization,the encapsulation efficiency and loading capacity of HES were 63.62%±0.01%and 0.40±0.00 g/g,respectively.The encapsulated HES exhibited higher antioxidant activity and stronger light and storage stability than the free HES.Additionally,the incorporation of HES inhibited the formation of lipid peroxides in the nanoemulsions.The findings suggest that glycosylation combined with high-pressure homogenization is an effective strategy for enhancing the stability of MPI-based emulsions and improving their encapsulation of HES.This study provides a promising approach for the development of innovative food and beverage products based on MPI emulsions or new materials for encapsulating fat-soluble bioactive compounds. 展开更多
关键词 Mung bean protein isolate-dextran conjugate NANOEMULSIONS Encapsulation HESPERIDIN Stability
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Fluctuating ozone exposures caused trade-offs between vegetative growth and reproduction of two Chinese bean cultivars and ethylenediurea alleviated ozone phytotoxicities
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作者 Kun Zhang Le Xian +3 位作者 Bo Shang Yansen Xu Zhaozhong Feng Evgenios Agathokleous 《Journal of Environmental Sciences》 2025年第10期450-465,共16页
Ozone(O_(3))pollution has elevated in China,threatening plants and crop production.Ethylenediurea(EDU)is a chemical alleviating O_(3)-induced phytotoxicities.This study aimed at revealing fluctuating O_(3) exposures e... Ozone(O_(3))pollution has elevated in China,threatening plants and crop production.Ethylenediurea(EDU)is a chemical alleviating O_(3)-induced phytotoxicities.This study aimed at revealing fluctuating O_(3) exposures effects on Youxian No 3(Phaseolus vulgaris)and Sukui No 4(Vigna angularis),two widely grown Chinese bean cultivars,and EDU role in mediating these effects.Plants were periodically treated with EDU(400 mg/L)or water and subjected to charcoal-filtered air(CF)or non-filtered ambient air enriched with an additional targeted O_(3) concentration of 40 ppb(NF40).with subsequent ambient or NF40 exposures.A 10-day exposure to NF40 increased photosynthetic rate(A)while decreasing the leaf intercellular CO_(2) concentration(Ci),but this effect was absent after moving plants to ambient air for two weeks.Moving previously CF-exposed plants to ambient air for two weeks also increased A,which was not linked with Ci but more related to stomatal conductance(gs).Following two one-week and two-week sequential exposures of all plants to NF40,with an intermediate exposure to ambient air,elevated O_(3) reduced chlorophylls(SPAD),A,gs,Ci,and transpiration and decoupled A-gs response.More O_(3) effectswere observed in plants treatedwithNF40 during each O_(3)-treatment cycle,compared to those exposed to CF during the first cycle.The former plants exhibited significantly decreased biomass and water content of leaves and stems but increased flowers biomass and water content.Some of the effects were cultivardependent,with Youxian showing more apparent trade-offs between vegetative growth and reproduction.EDU alleviated various negative O_(3) effects. 展开更多
关键词 Antiozonant bean cultivation Crop protection Ozone pollution Plant oxidative stress
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Determination of Ten Plant Growth Regulator Residues in Bean Sprouts by Mass Spectrometry
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作者 Lin TIAN Jinlu LI +6 位作者 Yi ZHANG Aili XIANG Baiqin ZHENG Zhe YIN Dan WU Caihua ZHANG Lei WANG 《Agricultural Biotechnology》 2025年第3期6-8,16,共4页
[Objectives]This study was conducted to quickly qualitatively and quantitatively analyze the residues of 10 plant growth regulators(PGRs)in bean sprouts.[Methods]Using bean sprouts as the test material,a high-performa... [Objectives]This study was conducted to quickly qualitatively and quantitatively analyze the residues of 10 plant growth regulators(PGRs)in bean sprouts.[Methods]Using bean sprouts as the test material,a high-performance liquid chromatography-tandem mass spectrometry(HPLC-MS/MS)method was established to determine the residual levels of 10 PGRs in bean sprouts.[Results]Under optimized conditions,the retention time of the 10 PGRs ranged from 6.45 to 11.43 min.When the mass concentration ranged from 0.005 to 0.05μg/ml,all PGRs exhibited good linearity,with correlation coefficients(r)≥0.9991.The limits of detection(LODs,S/N=3)were in the range of 0.30-0.92μg/kg,and the limits of quantification(LOQs)were in the range of 0.50-2.10μg/kg.The average recovery values at three concentration levels ranged from 80%to 105.8%,with relative standard deviations(RSD s,n=6)of 2.8%-7.5%.[Conclusions]This method is simple and accurate,and provides technical reference for food safety monitoring. 展开更多
关键词 HPLC-MS/MS bean sprout Plant growth regulators Mass spectrometry
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Effects of Acupoint Catgut Embedding Combined with Auricular Point Pressing with Beans on Self- Efficacy of Symptom Management and Quality of Life of Patients with Nonalcoholic Steatohepatitis of Liver Depression and Spleen Deficiency Type
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作者 Jiamin Feng Zhentong Xia +1 位作者 Lifen Wu Fangyao Zhao 《Journal of Clinical and Nursing Research》 2025年第5期350-358,共9页
Objective:To explore the effects of acupoint catgut embedding combined with auricular point pressing with beans on symptom management self-efficacy and quality of life in patients with nonalcoholic steatohepatitis(NAS... Objective:To explore the effects of acupoint catgut embedding combined with auricular point pressing with beans on symptom management self-efficacy and quality of life in patients with nonalcoholic steatohepatitis(NASH)of liver depression and spleen deficiency type.Methods:Sixty patients with NASH of liver depression and spleen deficiency type admitted to our hospital from January 2021 to December 2023 were selected and divided into an acupoint catgut embedding group(n=30)and a combined group(n=30)using the envelope lottery method.The acupoint catgut embedding group received acupoint catgut embedding intervention,while the combined group received auricular point pressing with beans on the basis of the acupoint catgut embedding group.The two groups were compared in terms of TCM syndrome scores,symptom management self-efficacy[Chronic Disease Self-Efficacy Scale(CDSES)],and quality of life[Chronic Liver Disease Questionnaire(CLDQ)].Results:After intervention,the combined group had lower TCM syndrome scores for both primary and secondary symptoms compared to the acupoint catgut embedding group(P<0.05).The combined group also had higher scores in all dimensions and total score of the CDSES compared to the acupoint catgut embedding group(P<0.05).Similarly,the combined group had higher scores in all dimensions and total score of the CLDQ compared to the acupoint catgut embedding group(P<0.05).Conclusion:Acupoint catgut embedding combined with auricular point pressing with beans can effectively improve TCM symptoms,enhance symptom management self-efficacy,and improve quality of life in patients with NASH of liver depression and spleen deficiency type. 展开更多
关键词 Nonalcoholic steatohepatitis Liver depression and spleen deficiency Acupoint catgut embedding Auricular point pressing with beans Symptom management SELF-EFFICACY Quality of life
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Gap-free genome assembly and metabolomics analysis of common bean provide insights into genomic characteristics and metabolic determinants of seed coat pigmentation
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作者 Bo Zhao Hui Zhang +13 位作者 Qin Zhao Rina Wu Qian You Bihui Wang Yiming Wang Zhilan Yan Peng Wang Chunguo Huang Wei Zhang Youmei Wang Xiaopeng Hao Jing Wu Lixiang Wang Zhaosheng Kong 《Journal of Genetics and Genomics》 2025年第6期852-855,共4页
Common bean(Phaseolus vulgaris L.)is a vital source of protein and essential nutrients for human consumption and plays a key role in sustainable agriculture due to its nitrogen-fixing ability(Nadeem et al.,2021).Kidne... Common bean(Phaseolus vulgaris L.)is a vital source of protein and essential nutrients for human consumption and plays a key role in sustainable agriculture due to its nitrogen-fixing ability(Nadeem et al.,2021).Kidney beans,a subcategory of dry common beans,are highly valued for their rich protein,dietary fiber,low fat content,and various trace elements(Garcia-Cordero et al.,2021).Despite the release of several de novo genome assemblies(Goodstein et al.,2012;Schmutz et al.,2014;Vlasova et al.,2016;Cortinovis et al.,2024),existing common bean genomes remain incomplete,particularly in complex regions such as centromeres and telomeres,limiting a comprehensive understanding of the genomic landscape. 展开更多
关键词 trace elements garcia cordero genomic characteristics gap free genome assembly metabolomics analysis common beansare de novo genome assemblies goodstein sustainable agriculture common bean
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基于饭豆基因资源的小豆远缘杂交群体抗豆象QTL定位
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作者 刘长友 王珅 +7 位作者 时会影 沈颖超 孙蕾 王彦 张志肖 苏秋竹 田静 范保杰 《作物学报》 北大核心 2026年第3期936-944,共9页
豆象是危害小豆(Vigna angularis)等食用豆类的主要仓储害虫,而栽培小豆缺乏抗豆象种质资源。近缘栽培种饭豆(Vigna umbellata)大多表现出抗豆象。本研究通过构建饭豆与小豆的远缘杂交群体,挖掘抗豆象基因资源,为小豆抗豆象育种提供理... 豆象是危害小豆(Vigna angularis)等食用豆类的主要仓储害虫,而栽培小豆缺乏抗豆象种质资源。近缘栽培种饭豆(Vigna umbellata)大多表现出抗豆象。本研究通过构建饭豆与小豆的远缘杂交群体,挖掘抗豆象基因资源,为小豆抗豆象育种提供理论支撑。以抗豆象饭豆F021和感豆象小豆白红2号为亲本,通过幼胚拯救获得F1植株,采用单粒传法构建包含178个株系的F8代重组自交系群体(RIL)。利用3095个SSR标记筛选亲本间多态性位点,构建遗传连锁图谱。结合2年人工接种绿豆象表型鉴定(以种子被害率为指标),采用区间作图法(IM)定位抗豆象QTL位点并分析其遗传效应。结果表明,亲本白红2号种子被害率均为100%(感豆象),饭豆F021种子被害率分别为19.2%和23.4%(抗豆象);RIL群体种子被害率呈连续分布,符合数量性状遗传特征。筛选获得503个多态性SSR标记(小豆来源标记多态性最高,达33.7%),构建的遗传连锁图谱包含262个标记,分布于11个连锁群,总长634.90 cM,标记间平均遗传距离3.43 cM,比较基因组分析显示与小豆基因组共线性良好。联合2年表型数据分析共检测到9个抗豆象QTL,其中3个为稳定QTL(QUmbr2.1/2.2、QUmbr4.1/4.2、QUmbr11.1/11.2), LOD值介于2.93~6.56,表型贡献率为8.3%~17.0%;所有QTL加性效应均为负值,表明饭豆等位基因显著降低种子被害率。本研究通过远缘杂交群体定位饭豆抗豆象QTL,证实饭豆可作为小豆抗豆象育种的优异基因供体,并为分子标记辅助选择提供了关键标记资源。 展开更多
关键词 饭豆 小豆 远缘杂交 抗豆象 QTL定位
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蚕豆11S蛋白淀粉样纤维化聚集的结构表征及其功能特性研究
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作者 陈慧 周梦园 +5 位作者 许喆 林学镁 赵文忠 许志豪 丁笑琦 丁玉庭 《食品与发酵工业》 北大核心 2026年第1期277-283,共7页
食源性蛋白淀粉样纤维化聚集具有独特的结构特性,蚕豆11S蛋白(fava bean 11S protein,FP)作为一种可持续蛋白资源,表现出巨大的潜力。该研究探究了蚕豆11S蛋白淀粉样纤维化聚集(fibrotic aggregation of 11S protein in fava bean,FPF)... 食源性蛋白淀粉样纤维化聚集具有独特的结构特性,蚕豆11S蛋白(fava bean 11S protein,FP)作为一种可持续蛋白资源,表现出巨大的潜力。该研究探究了蚕豆11S蛋白淀粉样纤维化聚集(fibrotic aggregation of 11S protein in fava bean,FPF)在形成过程中的动态演变,包括其结构表征和功能特性。6 g/100 mL的FP通过酸热处理(pH 2,85℃)不同时间(0~24 h)后得到FPF。处理后的样品通过硫黄素T、荧光、二酪氨酸、透射电子显微镜、傅里叶红外光谱等进行结构表征,结果表明FP先在酸热过程中水解成多肽,再自组装成富含β-折叠结构的FPF(由0 h的34.44%增加到24 h的45.89%)。通过起泡性、乳化性和凝胶特性等对FPF功能特性进行表征,与FP相比,反应24 h后的FPF具有更好的起泡性、乳化性和凝胶特性。此外,FPF在体外细胞实验中没有表现出细胞毒性。研究结果为FPF的形成规律提供了理论支撑。 展开更多
关键词 蚕豆蛋白 11S蛋白 淀粉样纤维化聚集 结构特征 功能特性
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草假单胞菌HT1发酵液的促生效应及发酵条件优化
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作者 张慧 卢文才 +2 位作者 陈星如 王冬 马连杰 《中国土壤与肥料》 北大核心 2026年第1期221-228,共8页
对草假单胞菌HT1的促生抑菌特性及培养条件优化展开探究,并分析其对蚕豆的促生效应。通过测定吸光度与菌落形成单位标准曲线,发现二者线性相关显著(相关系数0.995,回归方程y=1×10^(9)x+2×10^(7))。该菌株产吲哚-3-乙酸量达109... 对草假单胞菌HT1的促生抑菌特性及培养条件优化展开探究,并分析其对蚕豆的促生效应。通过测定吸光度与菌落形成单位标准曲线,发现二者线性相关显著(相关系数0.995,回归方程y=1×10^(9)x+2×10^(7))。该菌株产吲哚-3-乙酸量达109 mg/L,产铁载体、溶磷及蛋白酶的晕圈与菌落直径比值分别为1.24、1.61和2.28,无解钾能力;对拟蚕豆葡萄孢等病原菌的抑菌圈直径在0.80~3.80 cm,其中对拟蚕豆葡萄孢抑制效果最强。经单因素和响应面试验优化,确定最佳培养条件为摇培温度31℃、初始pH 7.67、接种量1.99%,此时实测菌落数为2.55×10^(8)CFU/mL。蚕豆促生试验显示,菌液浓度5×10^(6)CFU/g时促生效果最优,株高、根长、叶面积和地上部鲜重较对照(株高12.30 cm、根长12.40 cm、叶面积7.13 cm2、地上部鲜重3.74 g)分别增加113%、29%、73.8%和56.1%。研究表明,草假单胞菌HT1在农业生物防治与作物促生方面具有良好的应用潜力。 展开更多
关键词 草假单胞菌HT1 促生特性 抑菌活性 生长条件优化 蚕豆促生效应
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白玉豆叶绿体基因组结构特征和系统发育研究
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作者 洪森荣 杜静怡 +2 位作者 张芝瑶 阿迪莱·吾马尔 胡丹 《四川农业大学学报》 北大核心 2026年第1期148-164,共17页
【目的】通过对白玉豆(Phaseolus lunatus L.)叶绿体基因组结构特征、密码子使用偏好性及系统发育关系进行深入分析,旨在为揭示该物种的起源与进化历程提供分子层面的证据,同时为种质资源的鉴定、保护与高效利用奠定理论基础。【方法】... 【目的】通过对白玉豆(Phaseolus lunatus L.)叶绿体基因组结构特征、密码子使用偏好性及系统发育关系进行深入分析,旨在为揭示该物种的起源与进化历程提供分子层面的证据,同时为种质资源的鉴定、保护与高效利用奠定理论基础。【方法】通过高通量测序技术对白玉豆叶绿体基因组进行序列测序、组装和基因注释,并用生物信息学分析方法对其叶绿体基因组进行分析。【结果】白玉豆的叶绿体基因组呈现典型的四分体结构特征,由1个大单拷贝区、1个小单拷贝区以及2个反向重复区共同构成;该基因组全长达到150907 bp,其GC含量为35.44%,共注释到129个功能基因,其中包括83个蛋白质编码基因、37个t RNA基因和8个rRNA基因和1个假基因(rpl33)。在重复序列分析中,检测到52个简单重复序列,其中44个为A/T单核苷酸重复,8个为AT/TA二核苷酸重复。同时,还鉴定出56个长重复序列;8个区间(trnQ-UUG_accD、rps12(exon 1)_clpP、rps11_rpl36、rpl36_rps8、ndhF_rpl32、rpl32_trnLUAG、ndhG_ndhI和rps15_ycf1)以及2个基因(rpoC1和clpP)的多态性较高;IR区边界上只有ycf1基因的2个拷贝,在整体上较为保守,稍有收缩和扩张;密码子偏好性在整体上较弱,且偏好以A或U结尾,影响密码子偏好性的主要因素为自然选择;白玉豆叶绿体基因组有8个最优密码子(UAU、AUU、GCU、GGU、CCU、ACU、GUA和AGA);只有ycf1和ycf2基因的Ka/Ks值大于1,受到强烈的正选择效应影响。【结论】白玉豆与上海崇明利马豆(MW423611)的亲缘关系较近,在0.93 MYA白玉豆与上海崇明利马豆开始分化。研究结果为白玉豆的资源分析及利用研究提供了理论基础。 展开更多
关键词 白玉豆 叶绿体基因组 结构特征 密码子偏好性 系统发育
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PAOO术后下前牙唇侧骨量变化:2D线性与3D体积分析的效能与临床意义
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作者 魏雅芹 陈烈金 +2 位作者 黄辉 吴敏婷 陈玉婷 《中国美容医学》 2026年第3期76-83,共8页
目的:比较二维线性测量法与三维体积分析法在评估牙周加速成骨正畸术(Periodontal Accelerated Osteogenic Orthodontic,PAOO)术后下前牙唇侧骨量变化中的差异及其临床应用价值,为精准评估骨改建效果提供科学依据。方法:选取2018年1月-2... 目的:比较二维线性测量法与三维体积分析法在评估牙周加速成骨正畸术(Periodontal Accelerated Osteogenic Orthodontic,PAOO)术后下前牙唇侧骨量变化中的差异及其临床应用价值,为精准评估骨改建效果提供科学依据。方法:选取2018年1月-2024年12月于佛山市第二人民医院和华南理工大学附属第六医院口腔科接受PAOO治疗的15例患者,采用锥形束计算机断层扫描(CBCT)分别获取术前(T0)、术后6个月(T1)及术后18个月(T2)的影像数据。通过二维线性测量法评估唇侧骨高度和厚度,通过三维体积分析法测量唇侧骨体积,分析两种方法的评估效能。结果:术后18个月,中央截面骨厚度(二维测量)的中位数减少1.05 mm(IQR:0.96~1.13 mm,范围:0.00~1.19 mm,P<0.01),三维骨体积的中位数减少25.78 mm^(3)(IQR:24.89~26.67 mm^(3),P<0.01)。二维测量与三维测量在骨厚度上的相关性较高(r=0.98,P<0.01),但在垂直高度上的相关性较低(r=0.36,P=0.20)。三维体积分析在检测微小骨量变化方面表现出更高的敏感性。结论:PAOO术后下前牙唇侧骨增量随时间逐渐减少。三维体积分析法在评估骨改建动态变化方面优于二维线性测量法,具有更高的敏感性和精确性,推荐作为临床精准评估的首选方法。 展开更多
关键词 牙周加速成骨正畸术(PAOO) 下前牙 唇侧骨量 二维三维分析 锥形束计算机断层扫描(CBCT) 骨改建
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五音疗法联合耳穴压豆干预在先兆流产合并失眠患者中的应用效果
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作者 邓颖辉 彭瑶 +1 位作者 余芳 杨琦 《中国医学创新》 2026年第4期124-128,共5页
目的:探讨应用五音疗法联合耳穴压豆对先兆流产合并失眠患者进行干预的效果。方法:从江西省妇幼保健院2024年3—10月收治的先兆流产合并失眠患者中选取80例,并随机分为观察组(n=40)与常规组(n=40)。常规组给予常规护理干预,观察组在常... 目的:探讨应用五音疗法联合耳穴压豆对先兆流产合并失眠患者进行干预的效果。方法:从江西省妇幼保健院2024年3—10月收治的先兆流产合并失眠患者中选取80例,并随机分为观察组(n=40)与常规组(n=40)。常规组给予常规护理干预,观察组在常规组基础上予以五音疗法联合耳穴压豆干预,两组均连续干预2周。比较两组失眠严重程度[失眠严重程度指数(ISI)]、心理健康状况[沃里克-爱丁堡积极心理健康量表(WEM-WBS)、汉密尔顿焦虑量表(HAMA)]及生活质量[生活质量综合评定问卷-74(GQOLI-74)]。结果:干预前,两组ISI分级、WEM-WBS、HAMA评分及GQOLI-74中生理、心理功能评分比较,差异无统计学意义(P>0.05);干预后,观察组ISI分级优于常规组,HAMA评分较常规组低,WEM-WBS评分及GQOLI-74中生理、心理功能评分较常规组高(P<0.05)。结论:联合应用五音疗法及耳穴压豆干预可改善先兆流产合并失眠患者的睡眠质量与生活质量,并能促进患者心理健康,减轻焦虑。 展开更多
关键词 五音疗法 耳穴压豆 先兆流产 失眠 心理健康 睡眠质量
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菌-酶协同法制备白芸豆抗氧化肽工艺优化及其抗氧化活性分析 被引量:1
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作者 谢晓妍 张芸溪 +8 位作者 王颖 刘童 李思楠 庞惟俏 佐兆杭 张璐 管骁 赵自力 李冰 《食品工业科技》 北大核心 2026年第3期207-220,共14页
为建立一种高效筛选白芸豆多肽(White kidney bean polypeptides,WKBPs)的方法并分析其体外抗氧化活性,本实验以白芸豆蛋白为原料,采用中性蛋白酶和枯草芽孢杆菌协同法制备WKBPs,通过单因素和响应面试验确定最佳工艺参数,并测定其氨基... 为建立一种高效筛选白芸豆多肽(White kidney bean polypeptides,WKBPs)的方法并分析其体外抗氧化活性,本实验以白芸豆蛋白为原料,采用中性蛋白酶和枯草芽孢杆菌协同法制备WKBPs,通过单因素和响应面试验确定最佳工艺参数,并测定其氨基酸组成和相对分子质量分布,利用超滤技术对制备的白芸豆粗肽进行分级分离,测定不同组分的抗氧化活性,对活性最好的组分进行液相色谱-质谱联用(LC-MS/MS)检测,并利用虚拟筛选、分子对接技术及分子动力学模拟探究肽段的潜在抗氧化活性。结果显示:菌-酶协同法制备WKBPs最佳工艺参数为发酵温度37.0℃、发酵时间48.0 h、接种量5.0%,此条件下的DPPH自由基清除率为76.12%±0.36%,多肽得率为17.59%±0.16%;WKBPs中疏水性氨基酸、碱性氨基酸和酸性氨基酸含量均较高,分别为21.932%、11.331%和20.583%;相对分子质量分布主要集中在3 kDa以下,超滤结果表明Mw<3 kDa的组分具有较好的抗氧化活性(DPPH自由基清除率、ABTS^(+)自由基清除率和羟自由基清除率),其半抑制浓度(IC_(50))值分别为0.307、0.310和0.361 mg/mL;总抗氧化能力(FRAP)在1 mg/mL的浓度下可以达到0.66±0.0018 mmol Fe^(2+)/g;通过虚拟筛选从LC-MS/MS鉴定的6364条肽序列中得到3条抗氧化多肽(FGWGP、FGHPEW和FGPYF),分子对接结果表明:肽段能够通过氢键及疏水相互作用等与Keap1结合形成稳定的复合物,调控Keap1-Nrf2通路发挥抗氧化作用;分子动力学模拟表明,FGWGP、FGHPEW和FGPYF可以与Keap1紧密结合形成稳定的构象。本实验为白芸豆蛋白的深度开发和白芸豆抗氧化肽产品的研发提供技术参考及理论基础。 展开更多
关键词 白芸豆多肽 菌-酶协同 超滤 抗氧化活性 分子对接
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外源尿囊素对碱胁迫下菜豆种子萌发及抗性的影响
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作者 张晨 刘畅 +4 位作者 冯国军 刘大军 闫志山 张泰峰 杨晓旭 《江苏农业学报》 北大核心 2026年第2期392-398,共7页
为探究尿囊素对碱胁迫环境下菜豆种子萌发及生理特征的影响,本研究以碱敏感菜豆品种金冠为试验材料,在筛选敏感碱胁迫浓度和适宜尿囊素浸种浓度的基础上,设置蒸馏水浸种+蒸馏水萌发培养对照(CK)、蒸馏水浸种+40 mmol/L NaHCO_(3)萌发培... 为探究尿囊素对碱胁迫环境下菜豆种子萌发及生理特征的影响,本研究以碱敏感菜豆品种金冠为试验材料,在筛选敏感碱胁迫浓度和适宜尿囊素浸种浓度的基础上,设置蒸馏水浸种+蒸馏水萌发培养对照(CK)、蒸馏水浸种+40 mmol/L NaHCO_(3)萌发培养处理(S)、2 mmol/L尿囊素浸种+40 mmol/L NaHCO_(3)萌发培养处理(S+All),测定培养后12 h、24 h、36 h、48 h、60 h和72 h菜豆种子中可溶性蛋白质、可溶性糖、脯氨酸等渗透调节物质的含量,菜豆子叶中超氧化物歧化酶(SOD)、过氧化物酶(POD)及过氧化氢酶(CAT)等抗氧化酶的活性及超氧阴离子自由基(O_(2)^(·-))产生速率、丙二醛(MDA)含量。结果表明,2 mmol/L尿囊素浸种缓解了菜豆种子萌发的碱胁迫,发芽势、发芽率分别较蒸馏水处理提高了17.71%、17.76%。培养后12~72 h S处理菜豆种子的可溶性蛋白质含量、可溶性糖含量、脯氨酸含量及菜豆子叶中的O_(2)^(·-)产生速率、MDA含量总体高于CK,而菜豆子叶的抗氧化酶活性总体低于CK。S+All处理菜豆种子的可溶性蛋白质含量、可溶性糖含量、脯氨酸含量及菜豆子叶的抗氧化酶活性总体高于S处理,而菜豆子叶的O_(2)^(·-)产生速率和MDA含量总体低于S处理。本研究结果为尿囊素在碱胁迫环境下菜豆种植中的应用提供了依据。 展开更多
关键词 菜豆 种子萌发 碱胁迫 尿囊素
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基于响应面法优化青稞粉-刺槐豆胶-明胶3D打印凝胶工艺研究
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作者 丁滋航 李玉平 +3 位作者 程靖 盛军 张云鹤 朱强强 《中国粮油学报》 北大核心 2026年第1期36-43,共8页
本研究旨在构建一种可打印多元凝胶复配体系,为多元复配凝胶在可食用3D打印墨水及凝胶类食品中应用提供参考。采用单因素实验探究青稞粉添加量、刺槐豆胶添加量、明胶添加量对复配凝胶体系黏度、流动性、色差的影响。以感官评分为响应值... 本研究旨在构建一种可打印多元凝胶复配体系,为多元复配凝胶在可食用3D打印墨水及凝胶类食品中应用提供参考。采用单因素实验探究青稞粉添加量、刺槐豆胶添加量、明胶添加量对复配凝胶体系黏度、流动性、色差的影响。以感官评分为响应值,根据响应面实验优化复配凝胶体系配方,分析复配凝胶体系特性对打印效果的影响。结果表明,青稞粉-刺槐豆胶-明胶复配凝胶体系最优制备工艺为以26 mL蒸馏水为基质,青稞粉添加量6 g、刺槐豆胶添加量1.25 g、明胶添加量1.75 g,此配方下制成的3D打印凝胶黏度17296±277.03 mPa·s,流动性为0.608±0.422 mm/min,色差值L^(*)=42.26±0.67,a^(*)=3.09±0.22,b^(*)=10.11±0.72,感官评分为90.56。此配方条件下获得的3D打印产品支撑性能、挤出性和打印效果兼优。 展开更多
关键词 青稞粉 刺槐豆胶 明胶 3D打印 响应面法
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基于分布组件的应用服务器关键技术的研究——无状态会话Bean管理器的设计与实现 被引量:5
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作者 齐勇 侯迪 +1 位作者 赵季中 金健忠 《小型微型计算机系统》 CSCD 北大核心 2001年第7期855-859,共5页
中间层应用服务器是建立 Internet复杂环境下分布式应用系统的关键基础支撑平台 ;论文结合分布式对象组件技术 CORBA与 EJB,设计并实现了基于 Web环境的应用服务器中的关键技术之一——无状态会话 Bean管理器 .通过它可以完成应用服务... 中间层应用服务器是建立 Internet复杂环境下分布式应用系统的关键基础支撑平台 ;论文结合分布式对象组件技术 CORBA与 EJB,设计并实现了基于 Web环境的应用服务器中的关键技术之一——无状态会话 Bean管理器 .通过它可以完成应用服务器中相应的部署和管理功能 . 展开更多
关键词 应用服务器 事务处理 分布组件 无状态会话bean管理器 INTERNET
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35份云南小粒种咖啡生豆品质综合评价
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作者 戴余波 黄家卫 +5 位作者 李庆聪 王应清 苏琳琳 萧自位 白学慧 陈玉芹 《种子》 北大核心 2026年第1期97-105,122,共10页
以云南临沧、保山、德宏3个主产区35份小粒咖啡生豆为研究材料,测定其水分、灰分、钾、钙、镁、铜、锌、铁、锰、磷、粗纤维、粗脂肪、蛋白质、咖啡因、绿原酸等15个化学特性指标,采用描述性统计、ANOVA方差分析、相关性分析和熵值法对... 以云南临沧、保山、德宏3个主产区35份小粒咖啡生豆为研究材料,测定其水分、灰分、钾、钙、镁、铜、锌、铁、锰、磷、粗纤维、粗脂肪、蛋白质、咖啡因、绿原酸等15个化学特性指标,采用描述性统计、ANOVA方差分析、相关性分析和熵值法对咖啡生豆进行系统评价。结果表明,除锰属于高变异外,其余14个指标处于弱变异到中等变异,变异系数达95.67%。ANOVA方差分析结果表明,3个州(市)的咖啡豆在铜、锌、锰、蛋白质、粗纤维、粗脂肪、咖啡因等7个指标存在显著差异,蛋白质和咖啡因关键风味前体物可作为德宏咖啡的特征性指标;锰和粗脂肪可作为临沧咖啡的特征性指标;铜、锌和粗纤维可作为保山咖啡的特征性指标。相关性分析结果表明,小粒种咖啡豆15个指标之间存在不同程度的相关性。熵值法分析结果表明,综合得分前10名的品种分别是德热6号、400、PR107、德热5号、585、296、卡蒂姆、瑞垦48-1。通过综合评价筛选出8个优质咖啡种质资源。 展开更多
关键词 咖啡豆 品质 综合评价 熵值法
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Nutritional Value and Application of Broad Bean Nutrition Flour as a Combination of Staple Food 被引量:4
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作者 吴春芳 林晶晶 +2 位作者 卞晓春 陈惠 夏礼如 《Agricultural Science & Technology》 CAS 2015年第6期1280-1285,共6页
This paper introduced the definition and importance of combination of sta-ple food. With broad bean nutrition flour as a sample, the preparation of the combi-nation of staple food was also described. In addition, the ... This paper introduced the definition and importance of combination of sta-ple food. With broad bean nutrition flour as a sample, the preparation of the combi-nation of staple food was also described. In addition, the main nutritional value of broad bean nutrition flour was introduced. Compared with those of other single flours, the nutritional value of broad bean nutrition flour was improved. Moreover, the nutrients in the broad bean nutrition flour would not be destroyed during the processing and preparation of staple food, and the processed steamed bread and raw noodle are more characteristic. The application value and prospects of broad bean nutrition flour, as a combination of staple food, were further discussed. 展开更多
关键词 Broad bean nutrition flour Combination of staple food APPLICATION
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Research Progress on Germplasm Resources of Common Bean 被引量:4
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作者 李斌 陈树良 +1 位作者 秦超 肖靖 《Agricultural Science & Technology》 CAS 2016年第11期2572-2577,共6页
The origin, classification, utilization and evaluation of germplasm resources, and breeding methods were introduced. The researches of biotic or/and abiotic stress, exploration of genomics and proteomics in common bea... The origin, classification, utilization and evaluation of germplasm resources, and breeding methods were introduced. The researches of biotic or/and abiotic stress, exploration of genomics and proteomics in common bean in recent years were reviewed in this paper, in order to provide theoretical reference for utilization and innovation of germplasm resources in common bean. 展开更多
关键词 Common bean Germplasm resources Biotic stress PROTEOMICS
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