Article
Agriculture, Multidisciplinary
Hui Zhu, Katarzyna Bierla, Xueli Jin, Joanna Szpunar, Daijie Chen, Ryszard Lobinski
Summary: This study analyzed the Se metabolites of a Se-enriched probiotic and identified gamma-glutamyl-selenomethionine as the major Se metabolite. It also discovered 11 minor Se metabolites, 8 of which were not previously reported in probiotics. These findings demonstrate the potential of this probiotic as an alternative source of organic Se for food and feed supplementation.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2022)
Article
Biochemistry & Molecular Biology
Evgenii Drobyshev, Stefanie Raschke, Ronald A. Glabonjat, Julia Bornhorst, Franziska Ebert, Doris Kuehnelt, Tanja Schwerdtle
Summary: The study found that SeN has a slow transfer rate across the blood-brain barrier and is not metabolized by brain endothelial cells. Although there was evidence of SeN transfer on both sides of the barrier, speciation analysis indicated that PBCECs did not methylate SeN. Further research is needed to investigate the potential health-promoting effects of SeN in humans.
Article
Chemistry, Analytical
Tamara Fernandez-Bautista, Beatriz Gomez-Gomez, Roberto Palacin-Garcia, Emma Gracia-Lor, Teresa Perez-Corona, Yolanda Madrid
Summary: The distribution of Se and Hg in different protein fractions extracted from muscle tissues of tuna, swordfish, and salmon (wild vs. farmed) was investigated for the first time. The study revealed that Se and Hg were associated with proteins of specific molecular weights, with differences observed between farmed and wild salmon. Additionally, Se speciation studies showed SeMeSeCys as the primary selenium species found in the proteins analyzed.
Article
Chemistry, Analytical
Pawel Zagrodzki, Pawel Pasko, Enrique Dominguez-Alvarez, Noemi Salardon-Jimenez, Clotilde Sevilla-Hernandez, Carmen Sanmartin, Katarzyna Bierla, Ryszard Lobinski, Joanna Szpunar, Jadwiga Handzlik, Claus Jacob, Urszula Bieniek, Agnieszka Galanty, Shela Gorinstein
Summary: Novel selenorganic compounds were successfully applied to fortify kale sprouts in selenium, resulting in significantly higher selenium content compared to unfortified sprouts. Different selenium compounds delivered varying doses of selenium to the sprouts, with only a small percentage being incorporated as seleno-L-methionine, Se(IV) and Se-methylselenocysteine.
MICROCHEMICAL JOURNAL
(2022)
Article
Agronomy
Federica Carucci, Gustavo Moreno-Martin, Yolanda Madrid-Albarran, Giuseppe Gatta, Pasquale De Vita, Marcella Michela Giuliani
Summary: The study evaluated the effects of foliar application of selenate and organic nitrogen and sulfur sources on the selenium content and species in durum wheat grain. The results showed that foliar application of selenate led to increased selenium accumulation, particularly under conditions of lower rainfall. Organic foliar sulfur had a negative effect on selenium content, while organic foliar nitrogen increased it. Modern varieties generally had higher selenium content compared to old varieties.
Article
Chemistry, Analytical
Sian Liao, Xiao-Lei Liu, Katherine E. Manz, Kurt D. Pennell, Joseph Novak, Ewerton Santos, Yongsong Huang
Summary: Alkenones are widely used as paleotemperature biomarkers, and the traditional methods of analysis, such as GC-FID and GC-CI-MS, face challenges with matrix interference and low concentrations. This study demonstrates that HPLC-MS methods provide excellent resolution, selectivity, linearity, and sensitivity for alkenones in complex matrices. The comparison of different mass detectors and ionization modes reveals the advantages of ESI and orbitrap MS for alkenone analyses, with orbitrap MS showing the lowest limit of detection and widest linear dynamic range.
Article
Biochemistry & Molecular Biology
Bo-Yang Hsu, Chen-Te Jen, Baskaran Stephen Inbaraj, Bing-Huei Chen
Summary: This study developed two methods for the analysis of ginsenosides in ginseng root residue and compared the results. The findings showed that both methods were able to effectively separate and detect ginsenosides in ginseng root residue. The study also demonstrated the quantitation limits and precision of these methods, and revealed the content range of nine ginsenosides in ginseng root residue.
Article
Energy & Fuels
Eliane V. Barros, Lindamara M. Souza, Nata C. L. Madeira, Luiz S. Chinelatto, Juliana N. Bertelli, Rogerio M. Carvalho, Boniek G. Vaz, Rosineide C. Simas, Alvaro C. Neto, Valdemar Lacerda, Wanderson Romao
Summary: This study presents an alternative method for the specific isolation of ARN from calcium naphthenate deposits, by cleaning and converting the salts, successfully separating the ARN species, supported by high-resolution mass spectrometry techniques.
Article
Chemistry, Applied
Jiangyi Luo, Ling Liang, Qinling Xie, Yixing Qiu, Sai Jiang, Yupei Yang, Lijuan Zhu, Yangfen Fu, Shenghuang Chen, Wei Wang, Hanwen Yuan
Summary: This study explored the differences in phytochemical composition, bioactive properties, and antioxidant activity of five citrus by-products in China. Essential compounds for identification were established, and the spectrum-effect relationship analysis revealed the differential markers contributing to the antioxidant activity. The results highlight the potential for enhancing and utilizing citrus by-products.
Article
Environmental Sciences
Nikita Bakanov, Carolina Honert, Lisa Eichler, Gerlind U. C. Lehmann, Ralf Schulz, Carsten A. Bruehl
Summary: A simple acetonitrile-based extraction method using HPLC-ESI-MS/MS was developed for the determination of 98 current-use pesticides in soil and herbaceous vegetation. The method exhibited good accuracy and precision, with percentage recoveries ranging from 71-125% (soil) and 70-117% (vegetation), and relative standard deviations of 1-14% (soil) and 1-13% (vegetation). Matrix-matched calibration curves showed excellent linearity (R-2 > 0.99). The method was successfully applied to agricultural sites in Germany, where 44 of the 98 pesticides were detected, indicating a high qualitative load compared to EU arable soils.
Article
Biochemistry & Molecular Biology
Moritz Benka, Kristof Goerlitz, Michael C. Schoettgen, Simon Lagies, Daniel A. Mohl, Michel Kather, Iwanette Du Preez-Bruwer, Davis Mumbengegwi, Robin Teufel, Stefanie Kowarschik, Roman Huber, Dietmar A. Plattner, Bernd Kammerer
Summary: A detection method using HPLC-QTOF-MS/MS was developed, which successfully screened and identified cucurbitacins and 23,24-dihydrocucurbitacins in the ethyl acetate extract of C. naudinianus tuber. This study identified eight previously reported cucurbitacins and four newly found 23,24-dihydrocucurbitacins.
Article
Chemistry, Applied
Christof B. Steingass, Jonas Burkhardt, Vicky Baeumer, Keshav Kumar, Heiko Mibus-Schoppe, Jana Zinkernagel, Patricia Esquivel, Victor M. Jimenez, Ralf Schweiggert
Summary: Anthocyanins were characterized in red cabbage, sweet potato, and Tradescantia pallida leaves. Various non-, mono-, and diacylated cyanidins were identified in red cabbage. Sweet potato leaves contained mono- and diacylated cyanidin- and peonidin glycosides, while T. pallida leaves mainly contained tetra-acylated anthocyanin tradescantin. The thermal stability of red cabbage and purple sweet potato extracts surpassed that of a commercial food dye, but still fell short compared to the stability of Tradescantia extract.
Article
Food Science & Technology
Sandra Marino-Cortegoso, Mariamelia Stanzione, Mariana A. Andrade, Cristina Restuccia, Ana Rodriguez-Bernaldo Quir, Giovanna G. Buonocore, Cassia H. Barbosa, Fernanda Vilarinho, Ana Sanches Silva, Fernando Ramos, Khaoula Khwaldia, Raquel Sendon, Letricia Barbosa-Pereira
Summary: This study focused on the recovery of antioxidant compounds from lemon and tomato by-products for use as natural additives in the development of active food packaging. The incorporation of extracts into polymers resulted in different structural changes and enhanced properties according to the nature of the polymeric matrix. Lemon and tomato extracts improved the water barrier properties of the films and released high amounts of polyphenolic compounds.
Article
Chemistry, Applied
Karlien Cheyns, Heidi Demaegdt, Nadia Waegeneers, Ann Ruttens
Summary: This study evaluated the potential health risks of arsenic in food supplements containing algae or cyanobacteria, indicating that certain products may pose health risks for specific population groups. Further research on the toxicity of AsSugars and development of limits for arsenic species in food supplements is suggested.
FOOD ADDITIVES AND CONTAMINANTS PART A-CHEMISTRY ANALYSIS CONTROL EXPOSURE & RISK ASSESSMENT
(2021)
Article
Environmental Sciences
Jingrong He, Li Li, Yunxiang Li, Mei Huang, Ying Zhu, Shihuai Deng
Summary: In this study, six aromatic organosulfates were synthesized and their purity and concentration were determined using high performance liquid chromatography/ultraviolet detector and high performance liquid chromatography/electrospray ionization/tandem mass spectrometry. The characteristic ion fragments were found to improve the identification and detection of target compounds.
ATMOSPHERIC ENVIRONMENT
(2022)
Review
Chemistry, Inorganic & Nuclear
Mikel Bernabeu de Maria, Jeremy Lamarche, Luisa Ronga, Luigi Messori, Joanna Szpunar, Ryszard Lobinski
Summary: This review critically discusses the actual location of Se-metal bonds and the involvement of selenol in proteins containing multiple SeCys residues. It also examines the applications of advanced mass spectrometric and atomic spectroscopic techniques in studying metal-binding sites.
COORDINATION CHEMISTRY REVIEWS
(2023)
Article
Environmental Sciences
Sebastiano Gozzo, Samuel Moles, Katarzyna Kinska, Maria P. Ormad, Rosa Mosteo, Jairo Gomez, Francisco Laborda, Joanna Szpunar
Summary: A UPLC-MS/MS method was optimized for the analysis of antibiotics and their metabolites in surface and wastewaters. The method was applied to monitor the river basin of the POCTEFA territory, and 21 antibiotics and their metabolites were detected. Fluoroquinolones and sulfamethoxazole, as well as their metabolites, should be considered as target compounds in the monitoring of water resources in the POCTEFA territory.
Article
Chemistry, Analytical
Luluil Maknun, Katarzyna Kinska, Ivain Gonzalez-Alvarez, Laurent Ouerdane, Beiatrice Lauga, Atitaya Siripinyanond, Joanna Szpunar, Ryszard Lobinski
Summary: A method for quantifying iron-siderophore complexes by electrospray high-resolution accurate mass (HRAM) mass spectrometry without the use of authentic standards was developed. The complexes were purified by solid-phase extraction (SPE) and identified by fast size-exclusion chromatography (FastSEC)-Orbitrap MS(n) based on molecular mass and fragmentation. The ability of the complexes to exchange Fe-56 and Fe-58 was demonstrated by SEC with ICP MS and ESI MS detection. The method was applied to analyze peat samples from the French Pyrenean mountains and successfully identified and quantified 19 siderophores belonging to different classes.
ANALYTICAL CHEMISTRY
(2023)
Article
Engineering, Chemical
D. Kalampaliki, G. D. T. M. Jayasinghe, E. Avramiotis, I. D. Manariotis, D. Venieri, S. G. Poulopoulos, J. Szpunar, J. Vakros, D. Mantzavinos
Summary: In this study, valorized biomass was pyrolyzed and activated with potassium hydroxide to produce a biochar with a high specific surface area and significant amounts of surface oxygen species and carbonates. The activated biochar was used as an activator for sodium persulfate to induce the adsorption and oxidation of sulfamethoxazole in various water matrices. The degradation of sulfamethoxazole followed a pseudofirst order kinetic law, and the oxidation mechanism involved radical pathways and/or electron transfer.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2023)
Article
Chemistry, Inorganic & Nuclear
Luisa Ronga, Iogann Tolbatov, Ester Giorgi, Paulina Pisarek, Christine Enjalbal, Alessandro Marrone, Diego Tesauro, Ryszard Lobinski, Tiziano Marzo, Damiano Cirri, Alessandro Pratesi
Summary: A panel of four gold(I) complexes, inspired by auranofin, were reported by the research group. These complexes showed similarities to auranofin but exhibited distinct features, such as lower log P values. Experimental and theoretical studies revealed that structural modifications on the phosphine ligand of auranofin can impact the chemical properties and biological mode of action of the derivatives.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Analytical
Yoshikazu Yamagishi, Go Inokuchi, Yumi Hoshioka, Sayaka Nagasawa, Hirotaro Iwase, Yasumitsu Ogra
Summary: Paliperidone, a widely used antipsychotic agent, was found to be decomposed by hemoglobin through the Fenton reaction, resulting in the formation of the metabolite PM1. The detection of PM1 in the blood can serve as a biomarker to correct for the concentration of paliperidone at the time of death in forensic cases.
JOURNAL OF ANALYTICAL TOXICOLOGY
(2023)
Article
Biochemistry & Molecular Biology
Pawel Zagrodzki, Agnieszka Wiesner, Monika Marcinkowska, Marek Jamrozik, Enrique Dominguez-Alvarez, Katarzyna Bierla, Ryszard Lobinski, Joanna Szpunar, Jadwiga Handzlik, Agnieszka Galanty, Shela Gorinstein, Pawel Pasko
Summary: Due to selenium deficiency in humans, the search for new organic molecules containing this element in plant biofortification is important. This study evaluated selenium organic esters based on benzoselenoate scaffolds, with additional halogen atoms and various functional groups. The study aimed to discover the relationships between molecular characteristics of these compounds and the amount of sulfur phytochemicals in kale sprouts. The statistical model revealed a correlation structure between the molecular descriptors of selenium compounds and the biochemical features of the sprouts.
Article
Chemistry, Organic
Yasumasa Hara, Teruhisa Manome, Wataru Suehiro, Shinji Harada, Yoshikazu Yamagishi, Akiko Takaya, Yasumitsu Ogra, Masami Ishibashi
Summary: Two new octadeca-peptibols, trichorzin PAX and XI (1 and 2), were isolated from the fungus Trichoderma harzianum IFM 66736, obtained from the soil in Aobanomori Park, Chiba City, Japan. The structures of the compounds were determined through spectral studies, X-ray crystallographic analysis, and MS/MS analysis. Compound 1 and 2 exhibited cytotoxicity against human colon cancer cell lines HCT116.
TETRAHEDRON LETTERS
(2023)
Article
Engineering, Environmental
Francisco Calderon Celis, Ivan Gonzalez-Alvarez, Magdalena Fabjanowicz, Simon Godin, Laurent Ouerdane, Beatrice Lauga, Ryszard Lobinski
Summary: Metallophores play a crucial role in metal scavenging and acquisition for many organisms. However, their identification in highly organic matter rich environments like peatlands is challenging due to low solubilization and metal scarcity. In this study, a novel two-dimensional solid-phase extraction-liquid chromatography-mass spectrometry (SPE-LC-MS) approach was developed for sensitive detection and identification of metallophores in native environments. By applying this method, 53 metallophores, including 36 bacterial ones, were identified in peat collected from a French peatland. The detection of characteristic metal isotope patterns also revealed potential complexes of iron and copper. Furthermore, a taxonomic-based inference method was implemented to associate the identified bacterial metallophores with potential producers, suggesting a new way to explore poorly documented environments for new metallophores and their producers.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Inorganic & Nuclear
Mikel Bernabeu de Maria, Diego Tesauro, Filippo Prencipe, Michele Saviano, Luigi Messori, Christine Enjalbal, Ryszard Lobinski, Luisa Ronga
Summary: Methylmercury, mercury (II), and mercury (I) chlorides were found to react with vasopressin and its mono- and diselenium analogues to form various mercury-peptide adducts. The replacement of Cys by SeCys in vasopressin increased reactivity towards methylmercury, resulting in the formation of -Se/S-Hg-Se-bridged structures and subsequent demethylation of methylmercury. Competitive experiments showed that CH3HgCl preferred to react with the diselenium analogue rather than vasopressin. The diselenium peptide also demonstrated the ability to displace CH3Hg moieties bound to S in vasopressin. These findings suggest the potential use of selenopeptides for methylmercury chelation and detoxification strategies.
INORGANIC CHEMISTRY
(2023)
Article
Food Science & Technology
Kazuaki Takahashi, Sakie Horiai, Yoshikazu Yamagishi, Sayaka Nagasawa, Hirotaro Iwase, Yasumitsu Ogra
Summary: This study reveals the biotransformation of a common vegetable selenium compound by gut microbe Morganella morganii, which provides efficient metabolic support for animals.
JOURNAL OF FUNCTIONAL FOODS
(2023)
Article
Chemistry, Analytical
Ryu Mochizuki, Akane Kobayashi, Hiromitsu Takayama, Toshihiko Toida, Yasumitsu Ogra
Summary: The Konig reaction is a useful method for detecting cyanide and its derivatives. In this study, we found that it can also be used to quantify glutathione and applied it to determine the levels of reduced and oxidized glutathiones. The method showed good sensitivity and was successfully applied to measure GSH and GSSG levels in cells exposed to oxidative stress.
ANALYTICAL METHODS
(2023)
Article
Chemistry, Analytical
Yoshinari Suzuki, Midori Kondo, Masae Harimoto, Yusuke Okamoto, Yu-ki Tanaka, Yasumitsu Ogra, Hiroshi Akiyama
Summary: Single-particle ICP-MS is a method for determining the mass distribution and particle number concentration of inorganic nanoparticles. Researchers developed a Bayesian estimation method to analyze the data obtained from spICP-MS analysis of silver and silica nanoparticles. The Bayesian method provided better estimation results, especially for samples with high particle number concentration, compared to conventional criteria-based methods.
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
(2023)
Article
Physics, Fluids & Plasmas
Yu-ki Tanaka, Taiki Osawa, Yoshikazu Yamagishi, Akitoshi Okino, Yasumitsu Ogra
Summary: This study demonstrates that cold atmospheric pressure plasma jet irradiation can effectively degrade methicillin and vancomycin, providing a powerful and environmentally friendly method for antibiotic treatment.
Article
Chemistry, Applied
M. Graca Dias, Elsa Vasco, Francisco Ravasco, Lufsa Oliveira
Summary: This study estimated the vitamin D intake of "adults" and "elderly" populations in Portugal using the TDS methodology. The results showed that the majority of people had inadequate vitamin D intake, well below the Dietary Reference Values.
Article
Chemistry, Applied
Yanan Wang, Jiachen Shi, Yong-Jiang Xu, Chin-Ping Tan, Yuanfa Liu
Summary: This study investigates the variations in lipid digestion profiles among individuals of different ages using in vitro digestion models. The findings suggest that adults have a more comprehensive lipid digestion compared to infants, and infants tend to release shorter chain length and more saturated free fatty acids during digestion. Additionally, the particle sizes in the stomach of the elderly were consistently larger. This study enhances our understanding of how lipids with different degrees of unsaturation undergo digestion in diverse age groups.
Article
Chemistry, Applied
Hyunjong Yu, Huisu Kim, Pahn-Shick Chang
Summary: Chitosan-pectin emulsion-filled hydrogel (EFH) was developed to enhance the bioaccessibility of lipophilic bioactive compounds through intestinal delivery. The EFH, prepared without crosslinking agents, demonstrated improved mechanical strength and compactness with higher pectin concentration. It retained the emulsion at pH 2.0 and released it at pH 7.4, resulting in enhanced release of free fatty acids and improved bioaccessibility of curcumin.
Article
Chemistry, Applied
Tongze Zhang, Siqi Hong, Jia-Rong Zhang, Pin-He Liu, Siyi Li, Zixian Wen, Jianwei Xiao, Guirong Zhang, Olivier Habimana, Nagendra P. Shah, Zhongquan Sui, Harold Corke
Summary: Lactic acid fermentation significantly affects the morphology and physicochemical properties of proso millet starch, including the formation of surface indentations and small pores, decrease in gelatinization temperatures, and changes in hardness and adhesiveness.
Article
Chemistry, Applied
Liqin Kong, Feng Hong, Peng Luan, Yiping Chen, Yaoze Feng, Ming Zhu
Summary: This study presents a novel impedance biosensor using composite nanomaterials and T1R1 as a signal probe, which can competitively and ultra-sensitively detect umami intensity. The biosensor exhibits exceptional analytical performance and is suitable for food flavor evaluation.
Article
Chemistry, Applied
Kunying Lv, Yixin Yang, Qilong Li, Ran Chen, Liang Deng, Yiwei Zhang, Ning Jiang
Summary: Horse's milk, with its high nutritional value and low allergenic proteins, could be a substitute for cow's milk in infant consumption. A proteomic method was used to identify and compare milk fat globule membrane (MFGM) and whey proteins from different horse breeds. The study found differences in protein composition and functionality, which could support the development of formulas more suitable for human infants.
Article
Chemistry, Applied
Enrique Jacobo Diaz-Montana, Helene Brignot, Ramon Aparicio-Ruiz, Thierry Thomas- Danguin, Maria Teresa Morales
Summary: Sensory perception of virgin olive oil is influenced by phenols and volatiles, which are affected by the composition of the oil and biological factors. This study investigated the effect of saliva and phenols on the release of volatiles, and found that the presence of phenols decreased the release of saturated volatiles.
Article
Chemistry, Applied
Wei Zhou, Rui Zhang, Zhen Cai, Fangfang Wu, Yong Hu, Chao Huang, Kun Hu, Yun Chen
Summary: Environmentally friendly and outstanding pH-responsive cationic starch nanoparticles (CSNP) were prepared from pH-sensitive starch. CSNP exhibited nanosize and regular sphere, highly free-flowing molecular chains, and demonstrated excellent pH responsiveness through multiple emulsion/demulsification transitions.
Article
Chemistry, Applied
Andrea Koo, Vinayak Ghate, Weibiao Zhou
Summary: This study suggests that direct seeding may negatively affect the nutritional quality of crops, causing a decrease in ascorbic acid, vitamin K, and total glucosinolate content.
Article
Chemistry, Applied
Tonghao Du, Yazhou Xu, Xiaoyan Xu, Shijin Xiong, Linli Zhang, Biao Dong, Jinqing Huang, Tao Huang, Muyan Xiao, Tao Xiong, Mingyong Xie
Summary: This study successfully improved the ACE inhibitory activity of black sesame seeds by fermenting them with Lactobacillus Plantarum NCU116 and hydrolyzing them using acid protease. The RF-PSO model was used to predict the ACE inhibitory activity during the hydrolysis process. Eight peptides with ACE inhibitory activity were identified from fermented black sesame seed hydrolysates after separation and screening.
Article
Chemistry, Applied
Yao Liu, Songyi Lin, Kexin Liu, Shan Wang, Qiaozhen Liu, Na Sun
Summary: This study analyzed the structural changes of shrimp proteins during digestion, predicted the immunodominant epitopes, and validated their allergenicity. The results showed that shrimp proteins were degraded into peptides during digestion, but still carried IgE epitopes that trigger allergic reactions.
Article
Chemistry, Applied
Tiantian Fu, Hongwei Cao, Yu Zhang, Xiao Guan
Summary: This study investigates the impact of milling on the active components in rice, with a focus on the stability and bioaccessibility of phenols, VB1, and alpha-GABA during cooking and digestion. The findings show that milling exacerbates the instability of gamma-GABA during cooking and VB1 during digestion, and it affects the bioaccessibility of these active compounds.
Article
Chemistry, Applied
Zhihao Yang, Yanru Hou, Min Zhang, Puxin Hou, Chang Liu, Lu Dou, Xiaoyu Chen, Lihua Zhao, Lin Su, Ye Jin
Summary: This study investigated the molecular mechanism of feeding regimes on lamb flavor by using TMT labeling combined with MS. The results showed that pasture-fed groups had higher levels of amino acids and volatile flavor substances compared to concentrate-fed groups. Additionally, several differentially abundant proteins associated with lamb flavor were identified.
Article
Chemistry, Applied
Zixuan Xie, De Zhang, Junyu Zhu, Qianqian Luo, Jun Liu, Jingtao Zhou, Xiaoyong Wang, Yuqiong Chen, Zhi Yu, Dejiang Ni
Summary: This study investigated the acidification of aroma-enhanced black tea during storage. Analysis of non-volatile substances and organic acids using UPLC-Q-TOF/MS and HPLC revealed a decrease in soluble sugars and amino acids, while an increase in organic acids such as oxalic acid, malic acid, and quinic acid. In vitro experiments further demonstrated that the acidification is a result of the decomposition of sugars and amino acids by heating, as well as the oxidation of aromatic aldehydes. Additionally, the study showed that the taste composition of tea infusion is altered, with reduced amino acids, catechins, soluble sugars, and flavonoids. This research provides a theoretical basis for improving the quality of black tea.
Article
Chemistry, Applied
Lin Wang, Falai Ma, Zihan Li, Yan Zhang
Summary: This study developed time-temperature integrators based on amyloglucosidase@Cu3(PO4)2 nanoflowers for monitoring the freshness of chilled pork. The results showed that the integrators were highly reliable and accurate in predicting the quality of chilled pork.
