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Amino acid profiles and protein quality of Siberian apricot(Prunus sibirica L.)kernels from Inner Mongolia

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Journal of Forestry Research 2020年第4期31卷 1391-1397页

作者： mingyu yin Tana Wuyun Zhongmao Jiang Jie Zeng State Key Laboratory of Tree Genetics and Breeding Nontimber Forestry Research and Development CenterPaulownia Research and Development Center of ChinaState Forestry AdministrationKey Laboratory of Non-timber Forest Germplasm Enhancement and Utilization of State Forestry AdministrationChinese Academy of ForestryZhengzhou 450003HenanPeople’s Republic of China Research Institute of Tropical Forestry Chinese Academy of ForestryGuangzhou 510520GuangdongPeople’s Republic of China

Siberian apricot(Prunus sibirica L.)is a traditional nut tree species in East Asia and Siberia and is a possible contribution to healthy ***,it has attracted little research attention and information on the nutritional value of its kernel is *** this study,the profile,nutritional value and variation of amino acids were investigated in eight *** kernels contained29×10-2 g/g protein and were rich in glutamic acid(26.5%),aspartic acid(11.3%)and arginine(10.1%).They showed higher essential amino acids(EAA)than similar protein values for *** variation coefficients of amino acids ranged from 3.8 to 43.7%,and the levels of seven amino acids were significantly different among the eight *** proportion of essential amino acids to total amino acids and amino acid score were also quite *** was negatively correlated with some amino acids and protein quality *** conclusion,there were two superior provenances(Wanjiagou and Horinger County)with high EAA contents and protein quality,and could be used in the large-scale development of this species.

关键词： Prunus sibirica L. Amino acids Nutritional value Diversity

High-frequency repetitive transcranial magnetic stimulation promotes neural stem cell proliferation after ischemic stroke

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Neural Regeneration Research 2024年第8期19卷 1772-1780页

作者： Jing Luo Yuan Feng Zhongqiu Hong mingyu yin Haiqing Zheng Liying Zhang Xiquan Hu Department of Rehabilitation Medicine The Third Affiliated HospitalSun Yat-sen UniversityGuangzhouGuangdong ProvinceChina Department of Hepatobiliary Surgery The Third Affiliated HospitalSun Yat-sen UniversityGuangzhouGuangdong ProvinceChina

Prolife ration of neural stem cells is crucial for promoting neuronal regeneration and repairing cerebral infarction *** magnetic stimulation(TMS)has recently emerged as a tool for inducing endogenous neural stem cell regeneration,but its underlying mechanisms remain unclea r In this study,we found that repetitive TMS effectively promotes the proliferation of oxygen-glucose deprived neural stem ***,repetitive TMS reduced the volume of cerebral infa rction in a rat model of ischemic stro ke caused by middle cerebral artery occlusion,im p roved rat cognitive function,and promoted the proliferation of neural stem cells in the ischemic ***-sequencing found that repetitive TMS activated the Wnt signaling pathway in the ischemic penumbra of rats with cerebral ***,PCR analysis revealed that repetitive TMS promoted AKT phosphorylation,leading to an increase in mRNA levels of cell cycle-related proteins such as Cdk2 and *** effect was also associated with activation of the glycogen synthase kinase 3β/β-catenin signaling pathway,which ultimately promotes the prolife ration of neural stem ***,we validated the effect of repetitive TMS on AKT *** found that repetitive TMS promoted Ca2+influx into neural stem cells by activating the P2 calcium channel/calmodulin pathway,thereby promoting AKT phosphorylation and activating the glycogen synthase kinase 3β/β-catenin *** findings indicate that repetitive TMS can promote the proliferation of endogenous neural stem cells through a Ca2+influx-dependent phosphorylated AKT/glycogen synthase kinase 3β/β-catenin signaling *** study has produced pioneering res ults on the intrinsic mechanism of repetitive TMS to promote neural function recove ry after ischemic stro *** results provide a stro ng scientific foundation for the clinical application of repetitive ***,repetitive TMS treatment may not only be an efficient an

关键词： AKT/β-catenin signaling brain stimulation Ca2+influx cell proliferation ischemic stroke middle cerebral artery occlusion neural stem cells neurological rehabilitation repetitive transcranial magnetic stimulation

Regulation of the quantum barrier and carrier transport toward high-efficiency quasi-2D Dion-Jacobson tin perovskite solar cells

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Journal of Energy Chemistry 2024年第8期95卷 200-207,I0005页

作者： Huanhuan Yao Chang Shi Tai Wu Shurong Wang mingyu yin Liming Ding Yong Hua Feng Hao School of Materials and Energy University of Electronic Science and Technology of ChinaChengdu 611731SichuanChina College of Chemistry and Molecular Engineering Peking UniversityBeijing 100871China Yunnan Key Laboratory for Micro/Nano Materials&Technology School of Materials and EnergyYunnan UniversityKunming 650091YunnanChina Center for Excellence in Nanoscience(CAS) Key Laboratory of Nanosystem and Hierarchical Fabrication(CAS)National Center for Nanoscience and TechnologyBeijing 100190China

Quasi-2D Dion-Jacobson(DJ)tin halide perovskite has attracted much attention due to its elimination of Van der Waals gap and enhanced environmental ***,the bulky organic spacers usually form a natural quantum well structure,which brings a large quantum barrier and poor film quality,further limiting the carrier transport and device ***,we designed three organic spacers with different chain lengths(ethylenediamine(EDA),1,3-propanediamine(PDA),and 1,4-butanediamine(BDA))to investigate the quantum barrier *** and experimental characterizations indicate that EDA with short chain can reduce the lattice distortion and dielectric confinement effect,which is beneficial to the effective dissociation of excitons and the inhibition of trap-free non-radiative *** addition,EDA cation shows strong interaction with the inorganic octahedron,realizing large aggregates in precursor solution and high-quality films with improved structural ***,femtosecond transient absorption proves that EDA cations can also weaken the formation of small n-phases with large quantum barrier to achieve effective carrier transport between different ***,the quasi-2D DJ(EDA)FA_(9)Sn_(10)I_(31)solar cells achieves a 7.07%power conversion efficiency with good environment ***,this work sheds light on the regulation of the quantum barrier and carrier transport through the chain length of organic spacer for qua si-2D DJ lead-free perovskites.

关键词： Chain lengths Organic spacers Quantum well Carrier transport Lattice distortion

Study on PRRSV Receptor Genes Differential Expression in Lung Tissues in Different Breeds of Pigs after Infecting with HP-PRRSV

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Animal Husbandry and Feed Science 2017年第4期9卷 229-233,258页

作者： Kang Runmin Ji Gaosheng Zeng Kai Lv Xuebin yin mingyu Animal Breeding and Genetics Key Laboratory of Sichuan Province Sichuan Animal Science Academy Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province Key Laboratory of Bio-resources and Ecoenvironment of Ministry of EducationCollege of Life SciencesSichuan University

[ Objective] In order to study the susceptibility molecular mechanism of highly pathogenic porcine reproductive and respiratory syndrome virus （ HP- PRRSV） JXA1 isolate on Tibetan pig, Zangmei pig and Yorkshire pig. [ Method ] In the study, real-time quantitative RT-PCR method was established to compare and analyze the differential expression of five porcine reproductive and respiratory syndrome virus （PRRSV） receptor genes （HSPG2, SIGLEC1, CD163, VIM and NMMHC-H A） in lung tissues in Tibetan pig, Zangmei pig and Yorkshire pig before the challenge and at the 4th ,7th and 14th days after the challenge with JXAI isolate. [ Results ] HSPG2 expression in Tibetan pig lung tissues increased significantly at the 4th and 14th days after the challenge with JXAI （ P 〈 0.05 ）, while decreased significantly at the 7th day after the challenge （P 〈 0.05 ）, HSPG2 expression in Zangmei pig lung tissues increased significantly at the 14th day after the challenge （P〈0.05）. SIGLECl expression in Tibetan pig lung tissues increased significantly at the 4th and 14th days after the infection（P 〈 0.05 ）, while SIGLEC 1 expression in Yorkshire pig decreased significantly at the 4th, 7th and 14th days after the challenge （P 〈0. 05 ）. CD163 expression in lung tissues of Tibetan pig and Zangmei pig both increased significantly at the 14th day after the challenge （P 〈 0.05 ）, while CD163 expression in lung tissues of Yorkshire pig decreased significantly at the 7th and 14th days after the challenge （ P 〈 0. 05 ）. VIM expression in lung tissues of Tibetan pig increased significantly at the 7th day after the challenge （ P 〈 0. 05 ）, while which of Yorkshire pig at the 7th day after the challenge decreased significantly （ P 〈 0. 05 ）. NMMHC-II A expression in lung tissues of Zangmei pig increased significantly at the 4th day after the challenge （ P 〈 0. 05 ）, and which of Yorkshire pig increased significantly at the 4th and 14th days after the challenge （P 〈 0. 05 ）. [ Conclusion] SIGLEC1 and VIM

关键词： JXA1 isolate Tibetan pig Zangmei pig Yorkshire pig Porcine reproductive and respiratory syndrome virus receptor genes Differential expression

水产品肌肉组织微观结构变化及其检测方法研究进展

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食品科学 2023年第9期44卷 278-286页

作者：李桢桢尹明雨王红丽王锡昌上海海洋大学食品学院上海201306 上海水产品加工及贮藏工程技术研究中心上海201306 农业农村部水产品贮藏保鲜质量安全风险评估实验室上海201306

水产品营养丰富、味道鲜美,深受消费者喜爱,其肌肉品质一直备受关注。肌肉品质可以通过肌肉组织微观结构进行判断,微观结构也常作为评价水产品肌肉品质的关键指标。本文综述水产品在原料、贮藏、加工和流通等多个阶段组织微观结构的变... 详细信息

水产品营养丰富、味道鲜美,深受消费者喜爱,其肌肉品质一直备受关注。肌肉品质可以通过肌肉组织微观结构进行判断,微观结构也常作为评价水产品肌肉品质的关键指标。本文综述水产品在原料、贮藏、加工和流通等多个阶段组织微观结构的变化过程,总结多种检测方法的技术特征及其在水产品肌肉组织微观结构中的适用范围,阐述肌肉组织微观结构与品质理化指标的关系,旨在为今后进一步完善水产品品质评价及调控体系提供参考。

关键词：水产品肌肉组织微观结构显微镜观察法无损检测

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发展甘蔗收获机械化的建议

中国农机化学报 2014年第4期35卷 296-300页

作者：尹明玉马剑云南省农业机械推广站昆明市650034

阐述国内外甘蔗收获机械化现状,分析发展甘蔗收获机械化的必要性和可行性,提出发展甘蔗收获机械化的建议。

关键词：收获机械化建议甘蔗

冷链流通中温度波动对冷冻南美白对虾持水性及质构特性的影响

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食品与发酵工业 2024年第5期50卷 208-217页

作者：李桢桢尹明雨王锡昌上海海洋大学食品学院上海201306 上海水产品加工及贮藏工程技术研究中心上海201306 农业农村部水产品贮藏保鲜质量安全风险评估实验室上海201306

以南美白对虾为研究对象,设置-18~-12、-18~-6、-18~0℃温度波动参数,研究0、1、3、5、7次波动后南美白对虾的持水性及质构特性变化,通过肌原纤维蛋白结构特性和微观结构的变化对其进行内因分析。结果表明,随着温度波动次数的增加,3组... 详细信息

以南美白对虾为研究对象,设置-18~-12、-18~-6、-18~0℃温度波动参数,研究0、1、3、5、7次波动后南美白对虾的持水性及质构特性变化,通过肌原纤维蛋白结构特性和微观结构的变化对其进行内因分析。结果表明,随着温度波动次数的增加,3组温度波动组南美白对虾的水分含量、硬度、内聚性、咀嚼性和剪切力逐渐减少,解冻损失、离心损失逐渐增加,持水性及质构特性发生显著劣变,且随着波动范围的增加,劣变程度加剧。巯基含量、最大内源荧光强度不断下降,且SDS-PAGE图显示肌原纤维蛋白部分发生氧化变性;通过微观结构更直观地发现,温度波动各组的冰晶和肌肉组织中的孔洞逐渐增大且不规则化。此外,通过偏最小二乘法进一步阐明蛋白变性和冰晶的重结晶是引起持水性及质构特性下降的主要原因。因此,温度波动次数增加会加剧南美白对虾持水性和质构特性的下降,应尽量避免冷链流通过程中多次大幅度甚至极端温度波动情况的发生。

关键词：南美白对虾温度波动持水性质构特性蛋白变性

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冷冻即食海参质构特性指标的相关性研究

中国食品学报 2023年第1期23卷 326-334页

作者：葛小通王红丽尹明雨王锡昌上海海洋大学食品学院上海201306 上海水产品加工及贮藏工程技术研究中心上海201306 农业农村部水产品贮藏保鲜质量安全风险评估实验室上海201306

目的:全面评价冷冻即食海参的质构特性。方法:采用质构仪(质地剖面、剪切力和应力松弛模式)检测和感官评价方法对4种方式解冻的冷冻即食海参进行质构测定,对仪器检测各指标间、仪器检测指标与感官评价指标间进行相关性分析,并对仪器检... 详细信息

目的:全面评价冷冻即食海参的质构特性。方法:采用质构仪(质地剖面、剪切力和应力松弛模式)检测和感官评价方法对4种方式解冻的冷冻即食海参进行质构测定,对仪器检测各指标间、仪器检测指标与感官评价指标间进行相关性分析,并对仪器检测指标进行主成分分析。结果:4种解冻组的仪器检测指标与感官评价指标均具有显著性差异(P<0.05)。除TPA黏聚性与TPA弹性、纵剪切力、粘滞系数η外,9项仪器检测指标间均呈较高的相关性(r≥0.800);同时,仪器检测指标和感官评价指标间存在一定的相关性(r=0.577~0.994)。主成分分析表明感官评价总分最高的冷藏解冻组趋近于主成分1和2的正方向,且能同时被TPA黏聚性、TPA硬度、横剪切力和弹性模量E1较好地解释。结论:冷冻即食海参质构特性指标间具有很好的相关性,本研究结果为冷冻即食海参的质构评价研究提供参考。

关键词：冷冻即食海参质构特性仪器检测指标感官评价

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不同产地雌性中华绒螯蟹感官品质与滋味品质的差异性

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食品与发酵工业 2021年第6期47卷 114-120,126页

作者：谢辉尹明雨张玉非王锡昌上海海洋大学食品学院上海201306 上海水产品加工及贮藏工程技术研究中心上海201306 农业部水产品贮藏保鲜质量安全风险评估实验室上海201306

该文以上海市松江区的鱼跃养殖产地及崇明区的崇东养殖产地的中华绒螯蟹为研究对象,测定其3个可食部位游离氨基酸和呈味核苷酸的含量,通过计算味道强度值(taste activity value,TAV)及味精当量(equivalent umami concentration,EUC)对... 详细信息

该文以上海市松江区的鱼跃养殖产地及崇明区的崇东养殖产地的中华绒螯蟹为研究对象,测定其3个可食部位游离氨基酸和呈味核苷酸的含量,通过计算味道强度值(taste activity value,TAV)及味精当量(equivalent umami concentration,EUC)对这些成分的呈味强度进行评价,结合人工感官和电子感官(电子舌)对其滋味品质进行综合分析,探究不同产地雌性中华绒螯蟹可食部位感官品质与滋味品质的差异。人工与电子感官结果显示,不同产地的中华绒螯蟹滋味轮廓有所差异。从游离氨基酸分析结果可知,崇东组性腺肝胰腺的游离氨基酸总量均显著高于鱼跃组(P1的游离氨基酸种类比鱼跃组多,且苦味氨基酸His含量较高。呈味核苷酸的结果显示,鱼跃组性腺的EUC值高于崇东组,但无显著性差异(P>0.05),肝胰腺和体肉中崇东组EUC值更高,尤其是肝胰腺,其EUC值约为鱼跃组的4倍。从感官与滋味品质的角度均反映出不同产地雌性中华绒螯蟹之间的差异,崇东产地的中华绒螯蟹整体感官及滋味品质优于鱼跃产地,同时由于崇东产地养殖池塘中苦草的存在,其可食部位的苦味较为明显。研究为淡水蟹养殖技术及其肉品资源的有效利用提供了参考及依据。

关键词：中华绒螯蟹养殖产地呈味物质