Article
Plant Sciences
Ying Zhang, Qi Zhang, Yuhua Wang, Shaoxiong Lin, Meihui Chen, Pengyuan Cheng, Mengru Du, Xiaoli Jia, Jianghua Ye, Haibin Wang
Summary: This study investigated the changes in metabolites, photosynthetic fluorescence parameters, and quality indexes of tea leaves under different concentrations of magnesium treatment. The results showed that magnesium did not significantly affect the quantity and total content of metabolites in tea leaves, but it influenced the content of specific metabolites. Increasing magnesium concentration enhanced the photosynthetic capacity and carbohydrate metabolism in tea trees, promoting their growth, but it had a negative impact on the synthesis of secondary metabolites and amino acids related to tea quality.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Food Science & Technology
Jie Zhao, Wenwen Liu, Yan Chen, Xin Zhang, Xu Wang, Fuhua Wang, Yongzhong Qian, Jing Qiu
Summary: This study identified potential markers for tea authenticity assessment using non-targeted metabolomics in unique oolong tea cultivars. A classification model based on these markers was developed and successfully discriminated the oolong tea samples. The combination of non-targeted metabolomics and chemometric methods can provide high resolution markers for tea authenticity assessment.
Article
Agronomy
Jiuliang Xu, Liangquan Wu, Bingxin Tong, Jiaxu Yin, Zican Huang, Wei Li, Xuexian Li
Summary: The study found that optimized fertilization and magnesium supplementation significantly impacted the yield and taste quality of oolong tea, with a substantial reduction in chemical fertilizers not affecting tea yield, and magnesium promoting amino acid and sugar accumulation for improved taste and flavor. Gas chromatography-time-of-flight mass spectrometry (GC-TOF-MS) and liquid chromatography-high resolution mass spectrometry (LC-HRMS) combined multivariate analyses revealed distinct features of metabolite accumulation in the leaves of oolong tea under different treatments.
Article
Food Science & Technology
Yuming Wei, Tiehan Li, Shanshan Xu, Tiancheng Ni, Wei-Wei Deng, Jingming Ning
Summary: Yellowing is the key process in producing yellow tea, but its impact on tea quality and chemical composition is not fully understood. This study used electronic eye, tongue, and metabolomics to investigate the dynamic changes in tea leaves during yellowing. The early stages of yellowing showed increased levels of compounds related to umami and sweetness, while the later stages resulted in darker color and decreased richness in tea infusion, accompanied by significant changes in levels of various compounds.
LWT-FOOD SCIENCE AND TECHNOLOGY
(2021)
Article
Horticulture
Qi Sheng, Xinzhuan Yao, Hufang Chen, Hu Tang, Litang Lu
Summary: In this study, the metabolites in insect tea and hawk tea were analyzed using advanced analytical techniques. The researchers discovered 49 metabolites in insect tea and hawk tea with potential as key active components in traditional Chinese medicine. Additionally, 98 metabolites were identified as potential active components for pharmaceutical preparations to treat various diseases. Comparative analysis revealed significant differences in the metabolic profiles of insect tea and hawk tea, with insect tea showing greater health benefits and higher antioxidant activity in vitro. These findings provide valuable insights for the development of new health foods using insect tea.
Review
Food Science & Technology
Mingchun Wen, Mengting Zhu, Zisheng Han, Chi-Tang Ho, Daniel Granato, Liang Zhang
Summary: This review summarizes the recent advances in tea metabolomics research. By using different analytical tools, the metabolite variation of tea leaves and the changes of chemical composition under different processing technologies were studied. The importance of metabolite identification process was also discussed.
COMPREHENSIVE REVIEWS IN FOOD SCIENCE AND FOOD SAFETY
(2023)
Article
Plant Sciences
Zheng-He Lin, Chang-Song Chen, Qiu-Sheng Zhong, Qi-Chun Ruan, Zhi-Hui Chen, Xiao-Mei You, Rui-Yang Shan, Xin-Lei Li
Summary: This study highlights the different effects of N deficiency on the metabolism of tea leaves and roots. N-deficient tea leaves showed chlorosis, reduced biomass accumulation, and altered metabolite concentrations, while N-deficient tea roots exhibited increased accumulation of certain substances. N deficiency may lead to lower tea quality in leaves, but improved stress response in roots.
Article
Biotechnology & Applied Microbiology
Yali Wang, Yifei Liu, Zhaoyue Sun, Joseph Brake, Yuhuan Qin, Jing Li, Xiaobin Wu
Summary: This study demonstrates the effectiveness of introducing Lactobacillus plantarum and Saccharomyces cerevisiae into Pu-erh tea fermentation processes to improve its quality and flavor. Microbiomics and metabolomics analyses reveal that inoculating these microorganisms increases essential metabolites related to the sensory quality and health benefits of Pu-erh tea, such as flavonoids and free amino acids. Fungal diversity decreases while bacterial diversity and richness significantly decrease after fermentation.
FERMENTATION-BASEL
(2023)
Article
Chemistry, Applied
Huijun Wang, Xueli Cao, Zhengfang Yuan, Guiyi Guo
Summary: This study analyzed 66 Xinyang Maojian tea samples and found that the quality and flavor of green tea are influenced by factors such as cultivar, elevation, and processing methods. 27 metabolites were closely correlated with elevation and significantly affected the umami flavor of tea. This comprehensive research provides valuable reference for other types of tea.
Article
Chemistry, Applied
Yuming Wei, Xuchao Yin, Mengjie Zhao, Jixin Zhang, Tiehan Li, Yiyi Zhang, Yujie Wang, Jingming Ning
Summary: In this study, an optimized yellowing process for yellow tea (YT) was developed using response surface methodology. The results showed that increasing yellowing temperature, relative humidity, and reducing yellowing time significantly enhanced the yellowness, sweetness, and consumer acceptability of YT. Metabolomics analysis revealed that the optimized yellowing process promoted the hydrolysis of certain compounds and the accumulation of soluble sugars and gallic acid. It also stimulated the oxidative polymerization of catechins while decelerating chlorophyll degradation. Overall, this optimized yellowing process could serve as a guide for a shorter yellowing cycle.
Article
Food Science & Technology
Tiehan Li, Yuming Wei, Wanzhen Feng, Mingxia Lu, Han Ke, Yifan Li, Aiju Shao, Qianying Dai, Jingming Ning
Summary: By comparing the effects of spontaneous piling fermentation (SPPF) and sterile piling fermentation (STPF) on the quality of Pu-erh tea, it was found that SPPF samples had a brownish-red color, stale-mellow taste, and stale aroma, while STPF samples had an orange-red color, sweet-mellow taste, and woody aroma. Metabolomics analysis revealed significant impacts of microorganisms and moist-heat activity on the tea's metabolites, especially on lipid metabolism, explaining the mechanism of the stale flavor in Pu-erh tea.
LWT-FOOD SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Applied
Mohamed A. Farag, Farah Elmetwally, Rawan Elghanam, Nurkhalida Kamal, Khaoula Hellal, Hamizah Shahirah Hamezah, Chao Zhao, Ahmed Mediani
Summary: Tea is a popular beverage with health benefits and unique aroma, taste, and features. The metabolite changes during tea processing and cultivation play a crucial role in the quality and classification of tea. Metabolomics is an effective tool for evaluating the quality of tea products.
Article
Food Science & Technology
Lingli Sun, Suwan Zhang, Qiuhua Li, Erdong Yuan, Ruohong Chen, Feiteng Yan, Xingfei Lai, Zhenbiao Zhang, Zhongzheng Chen, Qian Li, Shili Sun
Summary: Oolong tea improves in richness, sweetness, and throat sensation after storage. The changes in taste and quality are attributed to the composition of oolong tea during storage, which has not been extensively studied. This study used electronic tongue technology to evaluate the taste quality differences of oolong tea stored in four different years (1991, 2001, 2011, and 2021) and found a decrease in bitterness, astringency, and richness, while acidity showed an opposite trend. Metabolomics techniques were used to explore the metabolites contributing to taste quality differences in Dancong tea from the same storage years. The findings suggest that regulating specific metabolic pathways can enhance the sour and umami flavors and reduce bitterness and astringency in aged tea.
Article
Forestry
Qunfeng Zhang, Meiya Liu, Roland Mumm, Ric C. H. Vos, Jianyun Ruan
Summary: This study provides insights into the spatial effects of shading on tea plants, highlighting the potential for improving tea quality through cultivation measures that enhance plant shading. By analyzing the metabolome in different parts of tea shoots under shading conditions, it was found that shading led to changes in the ratio of polyphenols to amino acids and levels of galloylated catechins, with differential responses observed among various metabolites in the young shoot tissues. The study also revealed spatial redistribution of carbon and nitrogen resources within the plant in response to shading treatments.
Article
Food Science & Technology
Menghu Li, Tianhong Pan, Qi Chen
Summary: This research utilized stoichiometry to detect 19 chemical substances affecting the quality of Huangshan Maofeng tea, and established a model-based scheme using the stepwise regression method (SRM) for estimating tea quality grades. Results showed that SRM had the highest prediction accuracy with the least number of features, simplifying the chemical detection process and providing a new effective scheme for batch tea-quality-grade estimation.
Review
Chemistry, Applied
Zhanming Li, Zhongyang Ren, Lin Zhao, Lin Chen, Yue Yu, Dongxu Wang, Xuejin Mao, Guangtian Cao, Zhenlei Zhao, Hongshun Yang
Summary: Advances have been made in understanding the biological effects of dietary flavonoids and flavonoid-rich foods. The role of gut microbiota in their metabolism and health benefits is still unclear. In this study, we explored the types of dietary flavonoids, their low bioaccessibility and metabolic characteristics, the role of gut microbiota in regulation, and the crosstalk between regulation mechanisms. The findings offer new research directions and trends in the development of flavonoid-rich food products.
Article
Chemistry, Applied
Huiping Ye, Juan Yang, Gengsheng Xiao, Yan Zhao, Zhanming Li, Weidong Bai, Xiaofang Zeng, Hao Dong
Summary: This review focuses on the current research status of authenticity and geographical origin traceability of animal-derived food. It covers various aspects such as geographical origin, feeding ingredients, adulteration of substitutes, and physical and chemical properties. Stable isotope ratio analysis and element analysis are commonly used traceability techniques, while spectroscopic techniques have the advantages of quick response, low cost, and non-destructiveness. Instrument technology combined with chemometrics is the key method for origin traceability and authenticity. There is also a new trend of origin traceability through analyzing inedible parts of animal-derived food. Understanding the authenticity and geographical origin traceability of animal-derived food is of great importance for food safety.
Article
Chemistry, Physical
Jiafeng Qian, Chenyi Wang, Xiaojing Zhang, Xiaoyan Zhao, Jian Li, Qiang Ren
Summary: In this study, anion exchange membranes (PAES-TMI-x) with dense 1,2,4,5-tetramethylimidazolium side chains were prepared and characterized for water electrolysis. These membranes exhibited high alkaline stability and ionic conductivity, making them suitable for efficient water electrolysis.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Gastroenterology & Hepatology
Zhan-Ming Li, Chao-Yue Kong, Yu-Qin Mao, Jia-Ting Huang, Hui-Ling Chen, Bing Han, Li-Shun Wang
Summary: This study reveals that the antibiotic ampicillin (Amp) may exacerbate acute liver injury (ALI) caused by acetaminophen (APAP) and demonstrates the influence of gut microbiota on this process. The results show that Amp exposure reduces the diversity and alters the composition of gut microbiota, leading to worsened liver damage caused by APAP. This effect is proven to be microbiota-related through fecal microbiota transplantation. Additionally, supplementation of lactobacillus, especially Lactobacillus rhamnosus, can reverse the aggravated liver injury induced by APAP and Amp.
LIVER INTERNATIONAL
(2023)
Article
Optics
Shi-Bao Wu, Zhan-Ming LI, Jun Gao, Heng Zhou, Chang-Shun Wang, Xian-Min Jin
Summary: Quantum correlation, an intrinsic property of quantum mechanics, has been widely used in testing physical principles and exploring quantum-enhanced technologies. This study demonstrates the classification of quantum correlation using deep learning in a quantum imaging scheme, addressing the challenge of high levels of loss and noise.
Article
Geography, Physical
Wanyi Zhang, Steffen Mischke, Dominic Hosner, Chengjun Zhang, Birgit Plessen, Huwei Li, Xiaojing Zhang
Summary: The late glacial and Holocene sediment record from Lake Heihai in the Kunlun-Pass region reveals cold and dry conditions between approximately 12.9 and 12.3 cal ka BP, followed by higher temperatures. Warmer and wetter conditions with increased lake levels and decreased lake-water salinity occurred from approximately 10.8 to 7.0 cal ka BP, attributed to the strengthening of the summer monsoon. From approximately 7.0 to 1.2 cal ka BP, a decline in lake level and an increase in lake-water salinity suggested cold and dry conditions, with glacier advances in the catchment.
QUATERNARY INTERNATIONAL
(2023)
Article
Chemistry, Physical
Jiafeng Qian, Chenyi Wang, Xiaojing Zhang, Jianxiong Hu, Xiaoyan Zhao, Jian Li, Qiang Ren
Summary: A class of poly (aryl ether sulfone)s with multiple quaternary ammonium cations on the side chains (PAES-MQA-x) were designed and synthesized for improving the performance of anion exchange membranes (AEMs) in water electrolysis. The PAES-MQA-x membranes exhibited a high ion exchange capacity, good water uptake, and high ionic conductivity. The electrolyzer with PAES-MQA-0.18 showed a high current density and good operational stability.
JOURNAL OF POWER SOURCES
(2023)
Article
Plant Sciences
Diandian Hu, Xiaojing Zhang, Pengcheng Xue, Yuanyuan Nie, Jinyu Liu, Yan Li, Can Wang, Xueli Wan
Summary: This study found that spraying carnation leaves with 100 μM MT can effectively alleviate damage caused by high temperature stress. Additionally, MT can promote the accumulation of photosynthetic pigments, enhance the performance of photosystem II, improve photosynthesis, reduce cell damage and lipid peroxidation, increase antioxidant enzyme activity, and regulate the accumulation of osmotic substances in carnation. Moreover, MT can increase the fresh/dry weight ratio of stems and roots, promote stomatal opening, and protect the integrity of chloroplast structure in carnation. The results of this study provide a theoretical foundation for mitigating the adverse effects of exogenous MT under heat stress and have important implications for the management of other plants affected by global warming.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2023)
Review
Chemistry, Multidisciplinary
Yue Yu, Zhanming Li
Summary: This study analyzes literature from the Web of Science core database and draws a knowledge graph using CiteSpace to explore the research frontiers between light and circadian rhythm. The study focuses on the regulation of light in the circadian rhythm of poultry, explores the effects of light on poultry growth and immunity, and analyzes the regulatory effect of light on melatonin levels.
APPLIED SCIENCES-BASEL
(2023)
Article
Health Care Sciences & Services
Zhengyan Zhang, Huiling Chen, Jiating Huang, Shilong Zhang, Zhanming Li, Chaoyue Kong, Yuqin Mao, Bing Han
Summary: Pulmonary embolism (PE) is a common and potentially fatal condition in the emergency department. In this study, the role of the gut microbiome in the pathogenesis of PE was explored using antibiotics and fecal microbiota transplantation (FMT) in a mouse model. The results showed that early administration of antibiotics, especially vancomycin, inhibited pulmonary thrombosis and reduced mortality in the mice. FMT with vancomycin-modified gut microbes also suppressed the development of PE. These findings provide new insights into the potential use of vancomycin and gut microbiome manipulation for PE prevention.
JOURNAL OF PERSONALIZED MEDICINE
(2023)
Article
Chemistry, Applied
Zhanming Li, Jiahui Song, Yinxing Ma, Yue Yu, Xueming He, Yuanxin Guo, Jinxin Dou, Hao Dong
Summary: This study proposed a rapid, simple, and accurate detection method for aged-rice adulteration using near-infrared spectra and partial least squares regression (PLSR) model. The method reduced the number of characteristic variables required by the spectrum and improved the identification accuracy of aged-rice adulteration, providing new clues and alternatives for the quality control of commercial rice.
Article
Electrochemistry
Ruixue Liu, Wenkang Liu, Jichao Chen, Xiangli Bian, Kaiqi Fan, Junhong Zhao, Xiaojing Zhang
Summary: Ionic conductive hydrogels with good conductivity and biocompatibility were designed and tested for strain sensor or supercapacitor applications. The results showed excellent recoverability, breaking strain, and ionic conductivity, demonstrating strong support for the application of the hydrogel. The hydrogel exhibited outstanding sensing and monitoring capability with high sensitivity and showed excellent capacitance performance at ambient temperature and even -30°C.
Article
Mathematics, Applied
Xiaojing Zhang
Summary: The purpose of this study is to investigate the effectiveness of a nursing intervention based on the Information-Motivation-Behavioral Skills Model(IMB Model) in patients with chronic heart failure. An average of 100 patients with chronic HF admitted to our hospital from January 2020 to December 2021 were divided into two groups. 50 patients in the experimental group were given IMB model care, and 50 patients in the control group underwent routine care measures. Patients were evaluated both before and after the intervention using the self-perceived burden scale and the Montreal Cognitive Assessment Scale. The experimental results showed that after 6 months of intervention, the self-perceived burden scores of both groups decreased, with the experimental group significantly lower than the control group. The cognitive function was higher in the experimental group than in the control group. This experiment concludes that the IMB model nursing intervention can relieve the burden of chronic heart failure, and improve the cognitive function of the disease in patients with chronic heart failure.
APPLIED MATHEMATICS AND NONLINEAR SCIENCES
(2023)
Article
Polymer Science
Kaiqi Fan, Sen Liu, Wenbo Feng, Wentong Yang, Jiwei Peng, Ruixue Liu, Shaoming Fang, Xiaojing Zhang
Summary: A novel Janus POSS-based hydrogel electrolyte with excellent flexibility and ionic conductivity at low temperatures is designed and prepared. The hydrogel electrolyte exhibits anti-freezing ability and high stretchability due to the incorporation of sodium sulfonate groups and double bonding groups. Based on this, an all-in-one flexible supercapacitor with stable electrochemical performance and cycling stability at low temperatures is prepared.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Polymer Science
Xiaolu Cai, Xiaojing Zhang, Jing Fan, Wenxiang Zheng, Tianyi Zhang, Lili Qiu, Zihui Meng
Summary: A photonic crystal material based on beta-cyclodextrin (beta-CD) with adsorption capacity is reported for VOCs gas sensing. The 3D O-(A-beta-CD)-AM PC was used to detect toluene, xylene, and acetone, while the 3D I-(A-beta-CD)-AM PC was used to detect toluene, xylene, and acetone, methanol, ethanol, and propanol. The sensor shows potential for alcohol detection and alcohol-loaded drug release detection.
