作者机构：
[Zhang, Zhanjiang] Guangxi Bot Garden Med Plants, Guangxi Key Lab High Qual Format & Utilizat Dao H, Nanning 530023, Peoples R China.;[Shen, Guang; Yang, Yihua] Heilongjiang Acad Sci, Inst Nat Resources & Ecol, Harbin 150040, Peoples R China.;[Li, Cui; Yang, Xiaonan; Chen, Xiaoying; Miao, Jianhua; Guo, Xiaoyun; Lei, Ming] Guangxi Bot Garden Med Plants, Guangxi Key Lab Med Resources Protect & Genet Imp, Nanning 530023, Peoples R China.;[Li, Cui; Yang, Xiaonan; Chen, Xiaoying; Miao, Jianhua; Guo, Xiaoyun; Lei, Ming] Guangxi Bot Garden Med Plants, Guangxi Engn Res Ctr TCM Resource Intelligent Cre, Nanning 530023, Peoples R China.;[Li, Li] Wuhan Polytech Univ, Natl R&D Ctr Se Rich Agr Prod Proc Technol, Sch Modern Ind Selenium Sci & Engn, Wuhan 430023, Peoples R China.
通讯机构：
[Jianhua Miao; Ming Lei; Li Li] A;Authors to whom correspondence should be addressed.<&wdkj&>Guangxi Engineering Research Center of TCM Resource Intelligent Creation, Guangxi Botanical Garden of Medicinal Plants, Nanning 530023, China<&wdkj&>Guangxi Key Laboratory of Medicinal Resources Protection and Genetic Improvement, Guangxi Botanical Garden of Medicinal Plants, Nanning 530023, China<&wdkj&>Authors to whom correspondence should be addressed.<&wdkj&>School of Modern Industry for Selenium Science and Engineering, National R&D Center for Se-Rich Agricultural Products Processing Technology, Wuhan Polytechnic University, Wuhan 430023, China
摘要：
The roots of Taraxacum kok-saghyz Rodin (TKS) are well-known and valued for their rubber-producing ability. Therefore, research on the analysis and detection of metabolites from the roots of TKS have been reported in previous studies. However, all of these studies have the shortcoming of focusing on only the rubber of TKS, without profiling the other metabolites in a systematic and comprehensive way. Here, the primary and secondary metabolites from the leaves of TKS were investigated using UPLC–ESI–MS/MS, and a total of 229 metabolites were characterized. Carboxylic acid derivatives, fatty acyls, phenols, and organooxygen compounds were found to be the major metabolites of TKS. The transcriptome data indicated that ribosomal, glycolysis/gluconeogenesis, phenylpropanoid biosynthesis, and linoleic acid metabolism genes were significantly differentially expressed. This study is the first to report the differences in the metabolic and transcriptome profiles of TKS leaves under exogenous ethephon spray, which improves our understanding of the main metabolites and their molecular mechanisms in TKS leaves.
作者机构：
[He, Jiangling; Zhou, Jiaojiao; Liu, Mingzhu; Ye, Yuanyuan; Wei, Lingfeng; Liu, Xiaoqing] Wuhan Polytech Univ, Natl R&D Ctr Se Rich Agr Prod Proc, Hubei Engn Res Ctr Deep Proc Green Se Rich Agr Pr, Sch Modern Ind Selenium Sci & Engn, Wuhan 430023, Peoples R China.;[Cai, Jie; Liu, Mingzhu; Ye, Yuanyuan; Wei, Lingfeng; Zhang, Die; Liu, Xiaoqing; Zhang, Shilei] Wuhan Polytech Univ, Key Lab Deep Proc Major Grain & Oil, Hubei Key Lab Proc & Transformat Agr Prod, Minist Educ, Wuhan 430023, Peoples R China.
通讯机构：
[Jie Cai] K;[Jiangling He] A;Authors to whom correspondence should be addressed.<&wdkj&>National R&D Center for Se-Rich Agricultural Products Processing, Hubei Engineering Research Center for Deep Processing of Green Se-Rich Agricultural Products, School of Modern Industry for Selenium Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, China<&wdkj&>Key Laboratory for Deep Processing of Major Grain and Oil, Ministry of Education, Hubei Key Laboratory for Processing and Transformation of Agricultural Products, Wuhan Polytechnic University, Wuhan 430023, China<&wdkj&>Authors to whom correspondence should be addressed.
摘要：
Anthocyanin has attracted increasing attention due to its superior biological activity. However, the inherently poor stability of anthocyanin limits its practical applications. In this study, a fast and straightforward method was developed to improve the stability of anthocyanin. Cellulose acetate ultrafine fiber-loaded anthocyanin (CA@Anthocyanin UFs) was prepared by robust electrospinning, and the potential application of cellulose acetate ultrafine fibers (CA UFs) as a bioactive substance delivery system was comprehensively investigated. The experimental results showed that CA@Anthocyanin UFs had protective effects on anthocyanin against temperature, light, and pH. The results of the artificially simulated gastric fluid (pH = 2.0) indicated that the CA@Anthocyanin UFs had a controllable release influence on anthocyanin. A 2,2-Diphenyl-1-picrylhydrazyl (DPPH) radical-scavenging assay suggested that the CA@Anthocyanin UFs still had an excellent antioxidant activity similar to anthocyanin. This work demonstrated the potential application of robust electrospinning-constructed cellulose acetate ultrafine fibers in bioactive substance delivery and controlled release systems, as well as its prospects in green packaging due to the nature of this environmentally friendly composite.
摘要：
Broussonetia papyrifera is an important fodder tree that is widely distributed in China. Enhancing the selenium (Se) content in B. papyrifera may help to improve the nutritional value of the feed. In this study, sodium selenite and selenate were foliar applied to investigate the mechanisms of Se tolerance and accumulation in B. papyrifera. The results showed that both Se forms significantly increased the total Se content, and the proportion of organic Se was significantly higher in the sodium selenite treatment than in the control. In addition, the soluble sugar, phenolic acid and flavonoid contents and antioxidant enzyme activities were increased by exogenous Se. The de novo RNA sequencing results showed that 644 and 1804 differentially expressed genes were identified in the selenite and selenate comparison groups, respectively. Pathway enrichment analysis demonstrated that 24 of the 108 pathways were significantly enriched, of which sulfur assimilation genes in the sodium selenite-treated groups were upregulated, whereas Se conjugation and transporter genes, such as SBP1, PCS, GSTs, ABCs and GPX, were significantly induced under selenate treatment. The hub genes identified by weighted-gene co-expression network analysis further confirmed that sulfur assimilation, conjugation and transporter genes might play a vital role in Se assimilation and tolerance. From this, a model of Se metabolism in B. papyrifera was proposed based on the above physiological and RNA sequencing data. This study is the first study to report that B. papyrifera has a strong ability to accumulate and tolerate exogenous Se, thereby providing a foundation for further characterization of the accumulation and tolerance mechanism of B. papyrifera. Our findings can provide technical support for producing Se-enriched fodder.
期刊：
Food Research International,2022年156:111135 ISSN：0963-9969
通讯作者：
Cheng, Shuiyuan(s_y_cheng@sina.com)
作者机构：
[Yang, Xiaoyan; Chen, Qiangwen; Ye, Jiabao; Xu, Feng; Yu, Li; Zhang, Weiwei; Liao, Xiaoli] Yangtze Univ, Coll Hort & Gardening, Jingzhou 434025, Peoples R China.;[Yang, Xiaoyan] Yangtze Univ, Engn Res Ctr Ecol & Agr Use Wetland Minist Educ, Jingzhou 434025, Hubei, Peoples R China.;[Yang, Xiaoyan] Yangtze Univ, Hubei Key Lab Waterlogging Disaster & Agr Use Wetl, Jingzhou 434025, Hubei, Peoples R China.;[Cheng, Shuiyuan; Rao, Shen; Zhu, Zhenzhou; Cong, Xin] Wuhan Polytech Univ, Natl R&D Ctr Se rich Agr Prod Proc Technol, Sch Modern Ind Selenium Sci & Engn, Wuhan 430023, Peoples R China.;[Cong, Xin] Enshi Se Run Hlth Tech Dev Co Ltd, Enshi 445000, Peoples R China.
通讯机构：
[Shuiyuan Cheng] S;[Feng Xu] C;College of Horticulture and Gardening, Yangtze University, Jingzhou 434025, China<&wdkj&>School of Modern Industry for Selenium Science and Engineering, National R&D Center for Se-rich Agricultural Products Processing Technology, Wuhan Polytechnic University, Wuhan 430023, China<&wdkj&>National Selenium Rich Product Quality Supervision and Inspection Center, Enshi 445000, Hubei, China
期刊：
International Journal of Biological Macromolecules,2022年222:868-879 ISSN：0141-8130
通讯作者：
He, Jiangling;Cai, Jie
作者机构：
[He, Jiangling; Hu, Zhongze; Zhou, Jiaojiao; Chen, Lei; Dong, Qi; Ye, Yuanyuan; Wang, Zhijing; Cai, Jie; Zhu, Weijia; Zhang, Die; Liu, Xiaoqing; Ding, Wenping] Wuhan Polytech Univ, Key Lab Deep Proc Major Grain & Oil, Hubei Key Lab Proc & Transformat Agr Prod, Minist Educ, Wuhan 430023, Peoples R China.;[He, Jiangling; Zhou, Jiaojiao; Ye, Yuanyuan; Wang, Zhijing; Cai, Jie; Zhu, Weijia; Zhang, Die; Liu, Xiaoqing] Wuhan Polytech Univ, Natl R&D Ctr Se rich Agr Prod Proc, Sch Modern Ind Selenium Sci & Engn, Wuhan 430023, Peoples R China.;[Ma, Tiezheng] Beijing Technol & Business Univ BTBU, Beijing Engn & Technol Res Ctr Food Addit, Beijing 100048, Peoples R China.;[Din, Zia-ud] Univ Swabi, Dept Agr, Anbar 23561, Khyber Pakhtunk, Pakistan.
通讯机构：
[Jiangling He; Jie Cai] K;National R&D Center for Se-rich Agricultural Products Processing, School of Modern Industry for Selenium Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, PR China. Electronic address:
摘要：
Polymers synthesized from green resources have many advantages in food packaging and hence their development is very important. Herein, starch/polyvinyl alcohol (PVA) nanofibrous composite films were fabricated by electrospinning technology. Steam-induced cross-linking reaction with glutaraldehyde (GTA) and silver sodium zirconium phosphate (Ag-ZrP) was employed to improve the hydrophobic and antibacterial properties of the constructed nanofibrous films, respectively. The effects of starch/PVA ratio on the micro-morphology and mechanical properties of the binary composite film were investigated. The composite film showed optimal uniformity, bead-free electrospun nanofibers, with enhanced mechanical strength for the 60/40 (v/v) starch/PVA composite. Moreover, the crystallinity of PVA was reduced during the electrospinning process, whereas the introduction of PVA strengthened the hydrogen interactions and improved the thermal stability of the composite films. After the cross-linking with GTA, the starch/PVA films became more hydrophobic. Furthermore, the starch/PVA films embedded with Ag-ZrP had outstanding antibacterial property against both Gram-negative and Gram-positive bacteria. This work demonstrated the potential prospects of electrospun starch nanofibrous films in the food packaging field.
作者机构：
[Li, Shuyi; Zhang, Chao; Zhu, Zhenzhou; Lei, Dan; Wang, Feifei] Wuhan Polytech Univ, Natl R&D Ctr Se rich Agr Prod Proc, Hubei Engn Res Ctr Deep Proc Green Se rich Agr Pro, Sch Modern Ind Selenium Sci & Engn, Wuhan 430023, Peoples R China.;[Zhang, Chao; Li, Junsheng; Lei, Dan] Wuhan Polytech Univ, Key Lab Deep Proc Major Grain & Oil, Minist Educ, Wuhan 430023, Peoples R China.;[Deng, Qianchun] Chinese Acad Agr Sci, Oil Crops Res Inst, Hubei Key Lab Lipid Chem & Nutr, Wuhan 430062, Peoples R China.;[Deng, Qianchun] Minist Agr, Key Lab Oilseeds Proc, Wuhan 430062, Peoples R China.;[Grimi, Nabil] Sorbonne Univ, Univ Technol Compiegne, Ctr Rech Royallieu, ESCOM,EA 4297,TIMR,CS 60319, 60319, F-60203 Compiegne, France.
通讯机构：
[Shuyi Li; Zhenzhou Zhu] N;National R&D Center for Se-rich Agricultural Products Processing, Hubei Engineering Research Center for Deep Processing of Green Se-rich Agricultural Products, School of Modern Industry for Selenium Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, China<&wdkj&>National R&D Center for Se-rich Agricultural Products Processing, Hubei Engineering Research Center for Deep Processing of Green Se-rich Agricultural Products, School of Modern Industry for Selenium Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, China
关键词：
Interaction mechanism;Myricetin;Soybean protein isolate;Ternary complex;β-Glucan
作者机构：
[Lei, Shuaishuai; Fang, Yang; Wang, Xianhua; Yang, Haiping; Xu, Kun; Chen, Hanping; Chen, Yingquan; Chen, Xu] Huazhong Univ Sci & Technol, Sch Energy & Power Engn, State Key Lab Coal Combust, Wuhan 430074, Peoples R China.;[Chen, Xu] Wuhan Polytech Univ, Sch Modern Ind Selenium Sci & Engn, Wuhan 430023, Peoples R China.
通讯机构：
[Xu Chen; Yingquan Chen] S;State Key Laboratory of Coal Combustion, School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, China<&wdkj&>School of Modern Industry for Selenium Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, China<&wdkj&>State Key Laboratory of Coal Combustion, School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
关键词：
Levoglucosenone;Catalytic pyrolysis;Sulfonated carbon;Quantum chemical computation
作者机构：
[He, Yi; Wang, Zhangqian; Wang, Yidang; Dong, XingXing; Xu, Hua; Gao, Chao; Deng, Jieya] Wuhan Polytech Univ, Natl R&D Ctr Se Rich Agr Prod Proc, Hubei Engn Res Ctr Deep Proc Green Se Rich Agr Pr, Sch Modern Ind Selenium Sci & Engn, Wuhan 430023, Peoples R China.;[Wang, Zhangqian] Hubei Univ, Sch Life Sci, State Key Lab Biocatalysis & Enzyme Engn, Wuhan 430062, Peoples R China.;[Umer, Muhammad] Guizhou Univ, Inst Forest Resources & Environm Guizhou, Guiyang 550025, Peoples R China.;[Umer, Muhammad] Guizhou Univ, Forestry Coll, Res Ctr Forest Ecol, Guiyang 550025, Peoples R China.;[Anwar, Naureen] Univ Narowal, Dept Zool, Narowal 51600, Punjab, Pakistan.
通讯机构：
[Chao Gao] N;National R&D Center for Se-rich Agricultural Products Processing, Hubei Engineering Research Center for Deep Processing of Green Se-rich Agricultural Products, School of Modern Industry for Selenium Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, China
摘要：
Telomeric G-quadruplexes have been a promising target for developing antitumor drugs with fewer side effects. The intracellular environment is usually in a state of molecular crowding. Studying the interaction mechanism among ligands and telomeric G-quadruplexes under crowded conditions is important for designing drugs that target telomeric G-quadruplexes. In the present study, the telomeric G-quadruplex Tel24 (TTAGGG)(4) was found to fold into a conformational ensemble of parallel and (3 + 1) hybrid-2 conformations in solution with molecular crowding conditions created by PEG200. G-quadruplex-ligand 3,11-difluoro-6,8,13-trimethyl-8H-quino[4,3,2-kl] acridinium methosulfate (RHPS4) preferentially stabilized the (3 + 1) hybrid-2 conformation and shifted the conformational ensemble equilibrium of Tel24 towards the hybrid conformation. We also found that the (3 + 1) hybrid-2 conformation of Tel24 was more likely to form as compared to the parallel conformation in the conformational ensemble of Tel24. Overall, this study provides new insights into the conformation of telomere G-quadruplexes and their interactions with ligands in a physiological environment.
作者机构：
[He, Jiangling; Zhou, Jiaojiao; Cai, Jie; Lv, Xuqin; Xie, Fang; Gui, Yue] Wuhan Polytech Univ, Natl R&D Ctr Se Rich Agr Prod Proc, Hubei Engn Res Ctr Deep Proc Green Se Rich Agr Pro, Sch Modern Ind Selenium Sci & Engn, Wuhan 430023, Peoples R China.;[Cai, Jie; Lv, Xuqin] Wuhan Polytech Univ, Hubei Key Lab Proc & Transformat Agr Prod, Key Lab Deep Proc Major Grain & Oi, Minist Educ, Wuhan 430023, Peoples R China.;[Li, Jinjie] Inst Syst & Engn, Beijing 100010, Peoples R China.
通讯机构：
[Jie Cai] K;[Jinjie Li] A;Key Laboratory for Deep Processing of Major Grain and Oil, Ministry of Education, Hubei Key Laboratory for Processing and Transformation of Agricultural Products, Wuhan Polytechnic University, Wuhan 430023, China<&wdkj&>Authors to whom correspondence should be addressed.<&wdkj&>National R&D Center for Se-Rich Agricultural Products Processing, Hubei Engineering Research Center for Deep Processing of Green Se-Rich Agricultural Products, School of Modern Industry for Selenium Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, China<&wdkj&>Authors to whom correspondence should be addressed.<&wdkj&>Institute of System and Engineering, Beijing 100010, China
作者机构：
[Cheng, Shuiyuan; He, Yi; Wang, Zhangqian; Gao, Chao; Yu, Yonghe; Wang, Yidan; Duan, Yuhua] Wuhan Polytech Univ, Natl R&D Ctr Se Rich Agr Prod Proc, Sch Modern Ind Selenium Sci & Engn, Wuhan 430023, Peoples R China.;[Wang, Zhangqian; Wang, Qin] Hubei Univ, Sch Life Sci, State Key Lab Biocatalysis & Enzyme Engn, Wuhan 430062, Peoples R China.;[Cong, Xin] Enshi Se Run Hlth Tech Dev Co Ltd, Enshi 445000, Peoples R China.;[Hafeez, Muhammad] Zhejiang Univ, Inst Insect Sci, State Key Lab Rice Biol, Minist Agr,Key Lab Mol Biol Crop Pathogens & Inse, Hangzhou 310058, Peoples R China.;[Rasheed, Syed Majid; Jan, Saad] Bacha Khan Univ, Dept Agr Entomol Sect, Charsadda Kp 39250, Pakistan.
通讯机构：
[Zhangqian Wang; Shuiyuan Cheng] A;Authors to whom correspondence should be addressed.<&wdkj&>National R&D Center for Se-Rich Agricultural Products Processing, School of Modern Industry for Selenium Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, China<&wdkj&>Authors to whom correspondence should be addressed.<&wdkj&>State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan 430062, China<&wdkj&>National R&D Center for Se-Rich Agricultural Products Processing, School of Modern Industry for Selenium Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, China
摘要：
The inorganic selenium is absorbed and utilized inefficiently, and the range between toxicity and demand is narrow, so the application is strictly limited. Selenium nanoparticles have higher bioactivity and biosafety properties, including increased antioxidant and anticancer properties. Thus, producing and applying eco-friendly, non-toxic selenium nanoparticles in feed additives is crucial. Bacillus paralicheniformis Y4 was investigated for its potential ability to produce selenium nanoparticles and the activity of carboxymethyl cellulases. The selenium nanoparticles were characterized using zeta potential analyses, Fourier transform infrared (FTIR) spectroscopy, and scanning electron microscopy (SEM). Additionally, evaluations of the anti-alpha-glucosidase activity and the antioxidant activity of the selenium nanoparticles and the ethyl acetate extracts of Y4 were conducted. B. paralicheniformis Y4 exhibited high selenite tolerance of 400 mM and the selenium nanoparticles had an average particle size of 80 nm with a zeta potential value of -35.8 mV at a pH of 7.0, suggesting that the particles are relatively stable against aggregation. After 72 h of incubation with 5 mM selenite, B. paralicheniformis Y4 was able to reduce it by 76.4%, yielding red spherical bio-derived selenium nanoparticles and increasing the carboxymethyl cellulase activity by 1.49 times to 8.96 U/mL. For the first time, this study reports that the carboxymethyl cellulase activity of Bacillus paralicheniforis was greatly enhanced by selenite. The results also indicated that B. paralicheniformis Y4 could be capable of ecologically removing selenite from contaminated sites and has great potential for producing selenium nanoparticles as feed additives to enhance the added value of agricultural products.
作者机构：
[Zhang, Rui; Wu, Muci; Ma, Yan; He, Jingren] Wuhan Polytech Univ, Natl R&D Ctr Se Rich Agr Prod Proc, Sch Modern Ind Selenium Sci & Engn, Wuhan 430048, Peoples R China.;[Zhang, Rui; Wu, Muci; Ma, Yan; He, Jingren] Wuhan Polytech Univ, Hubei Key Lab Proc & Transformat Agr Prod, Wuhan 430048, Peoples R China.;[Li, Ao] China Three Gorges Univ, Coll Biol & Pharmaceut Sci, Hubei Key Lab Nat Prod Res & Dev, Yichang 443002, Peoples R China.;[Wang, Jingyi] Hubei Univ Technol, Sch Food & Biol Engn, Wuhan 430068, Peoples R China.
通讯机构：
[Rui Zhang; Jingren He] N;National R&D Center for Se-Rich Agricultural Products Processing, School of Modern Industry for Selenium Science and Engineering, Wuhan Polytechnic University, Wuhan 430048, China<&wdkj&>Authors to whom correspondence should be addressed.<&wdkj&>Hubei Key Laboratory for Processing and Transformation of Agricultural Products, Wuhan Polytechnic University, Wuhan 430048, China
摘要：
Oxovitisins are a unique group of anthocyanin derivatives with a non-oxonium nature and α-pyranone (lactone) D ring on the structure. In this study, oxovitisin A was synthesized through the micro-oxidative reaction of carboxypyranomalvidin-3-O-glucoside (vitisin A) with water, and its thermostability, pH, and SO(2) color stability were studied compared with its two precursors, malvidin-3-O-glucoside (Mv3glc) and vitisin A, as well as methylpyrano-malvidin-3-O-glucoside (Me-py). Results showed that oxovitisin A exhibited the highest stabilities, which were inseparably related to its noncharged structure and the additional carbonyl group on the D ring. Moreover, the antiproliferative capacity of oxovitisin A was comparatively evaluated against two human gastrointestinal cancer cell lines. Interestingly, oxovitisin A presented the strongest antiproliferative ability on MKN-28 (IC(50) = 538.42 ± 50.06 μM) and Caco-2 cells (IC(50) = 434.85 ± 11.87 μM) compared with two other pyranoanthocyanins. Therefore, we conclude that oxovitisin A as a highly stable anthocyanin derivative still exhibits a satisfactory antiproliferative ability.
作者机构：
[Hu, Yili; Xiong, Yin] Wuhan Polytech Univ, Natl R&D Ctr Se Rich Agr Prod Proc, Sch Modern Ind Selenium Sci & Engn, Wuhan 430023, Peoples R China.;[Wang, Haibin; Hu, Yili; Zhang, Xinyu; Wei, Liying] Wuhan Polytech Univ, Sch Food Sci & Engn, Hubei Key Lab Proc & Transformat Agr Prod, Wuhan 430023, Peoples R China.;[Cai, Yi] Chinese Acad Sci, Tianjin Inst Ind Biotechnol, Tianjin 300308, Peoples R China.;[Qiao, Zhixian] Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China.
通讯机构：
[Zhixian Qiao] I;Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China<&wdkj&>Author to whom correspondence should be addressed.
关键词：
fresh-cut watermelon;quality changes;sensory parameters;NMR-based metabolomics;microbial community
摘要：
As a popular form of fruit consumption, fresh-cut watermelon is of great convenience for its consumers. Owing to the lack of comprehensive knowledge about the quality changes of fresh-cut watermelon during its shelf life, guidelines and standards are unavailable currently. To clarify the deterioration process and its underlying mechanism in fresh-cut watermelon, the sensory parameters, metabolomics, and microbial community of fresh-cut watermelon during a three-day storage at both room temperature (RT) and refrigerator temperature were systematically studied in this work. Results revealed that the whole property of the watermelon stored at refrigerator temperature kept stable, while pulps stored at RT had substantially deteriorated after 36 h. The decay was reflected in the significant decrease in soluble solid contents, firmness, pH, and color parameters in the sensory perspective. At the metabolic level, significantly declined malate, citrate, uridine, uridine 5-monophosphate, and amino acids, and increased ethanol and lactate contents, were observed as deterioration markers, which partially resulted from the activities of pyruvate dehydrogenase and alcohol dehydrogenase and the burst of genera Enterobacteriaceae and Leuconostocaceae. This study unveiled the underlying mechanisms of quality changes in fresh-cut watermelon under its primary storage conditions to provide fundamental information and potential clues for its quality control and preservation.
作者机构：
[Berrada, Houda; Barba, Francisco J.; Wang, Min; Zhou, Jianjun] Univ Valencia, Fac Pharm, Prevent Med & Publ Hlth Food Sci Toxicol & Forens, Avda Vicent Andres Estelles S-N, Valencia 46100, Spain.;[Wang, Min; Zhou, Jianjun] Natl Res Council IATA CSIC, Inst Agrochem & Food Technol, Valencia, Spain.;[Zhu, Zhenzhou] Wuhan Polytech Univ, Natl R&D Ctr Se Rich Agr Prod Proc, Hubei Engn Res Ctr Deep Proc Green Se Rich Agr Pr, Sch Modern Ind Selenium Sci & Engn, Wuhan 430023, Peoples R China.;[Zhu, Zhenzhou] Wuhan Polytech Univ, Key Lab Deep Proc Major Grain & Oil, Hubei Key Lab Proc & Transformat Agr Prod, Minist Educ, Wuhan 430023, Peoples R China.;[Grimi, Nabil] Sorbonne Univ, Univ Technol Compiegne, Ctr Rech Royallieu, ESCOM,EA 4297 TIMR, CS 60319, F-60203 Compiegne, France.
通讯机构：
[Houda Berrada; Francisco J. Barba] P;Preventive Medicine and Public Health, Food Science, Toxicology and Forensic Medicine Department, Faculty of Pharmacy, Universitat de València, Avda. Vicent Andrés Estellés, s/n, 46100 Burjassot, Valencia, Spain
作者机构：
[Yang, X.; Lai, X.; Xu, F.; Ye, J.; Rao, S.; Liao, Y.; Zhang, W.] Yangtze Univ, Coll Hort & Gardening, Jingzhou 434025, Peoples R China.;[Zhu, Z.; Cheng, S.; Cong, X.; Rao, S.] Wuhan Polytech Univ, Natl R&D Ctr Se Rich Agr Prod Proc Technol, Sch Modern Ind Selenium Sci & Engn, Wuhan, Peoples R China.;[Cong, X.] Enshi Se Run Hlth Tech Dev Co Ltd, Enshi, Peoples R China.
通讯机构：
[S. Cheng] S;[F. Xu] C;College of Horticulture and Gardening, Yangtze University, Jingzhou, China<&wdkj&>School of Modern Industry for Selenium Science and Engineering, National R&D Center for Se-rich Agricultural Products Processing Technology, Wuhan Polytechnic University, Wuhan, China
关键词：
Antioxidant system;Heavy metal stress;Phytochelatins;Selenium;Selenium heavy metal complexes
摘要：
Selenium (Se) is a metalloid mineral nutrient for human and animal health. Plants are the main foodstuff source of the Se intake of humans. For plants, the addition of an appropriate amount of Se could promotes growth and development, and improves the tolerance to environmental stress, especially stress from some of heavy metals (HM) stress, such as cadmium (Cd) and mercury (Hg). This paper mainly reviews and summarizes the physiological mechanism of Se in enhancing HM stress tolerance in plants. The antagonistic effect of Se on HM is a comprehensive effect that includes many physiological mechanisms. Se can promote the removal of excessive reactive oxygen species and reduce the oxidative damage of plant cells under HM elements stress. Se participates in the regulation of the transportation and distribution of HM ions in plants, and alleviates the damage caused by of HM stress. Moreover, Se combine with HM elements to form Se-HM complexes and promote the production of phytochelatins (PCs), thereby reducing the accumulation of HM ions in plants. Overall, Se plays an important role in plant response to HM stress, but current studies mainly focus on physiological mechanism, and further in-depth study on the molecular mechanism is essential to confirm the participation of Se in plant response to environmental stress. This review helps to comprehensively understand the physiological mechanism of Se in plant tolerance against to HM stress of plants, and provides important theoretical support for the practical application of Se in environmental remediation and agricultural development.
