Article
Microbiology
Carla Zannella, Annalisa Chianese, Giuseppe Annunziata, Annalisa Ambrosino, Anna De Filippis, Gian Carlo Tenore, Ettore Novellino, Mariano Stornaiuolo, Massimiliano Galdiero
Summary: Herpes simplex virus (HSV) is a common virus that causes oral or genital ulcers and can lead to severe complications. Current anti-HSV drugs have limitations, so there is a need for new antiviral compounds. This study tested a polyphenol-based nutraceutical formulation called Taurisolo(R), which showed potential in inhibiting the early stages of HSV-1 and HSV-2 infection. These findings suggest that Taurisolo(R) could be used as a topical treatment for preventing and healing herpes lesions.
Article
Food Science & Technology
Paula Virginia de Almeida Pontes, Aline Czaikoski, Naara Aparecida Almeida, Sara Fraga, Liliana de Oliveira Rocha, Rosiane Lopes Cunha, Guilherme Jose Maximo, Eduardo Augusto Caldas Batista
Summary: This study evaluated the extraction of phenolic compounds from olive pomace using deep eutectic solvents (DES) and compared the total phenolic content and antioxidant activity of DES extracts with ethanol extracts. The results showed that DES extracts had superior antibacterial activity and oxidative stability compared to ethanol extracts, suggesting that DES could be a potential solvent for phenolic compound extraction with technological benefits.
FOOD RESEARCH INTERNATIONAL
(2022)
Article
Green & Sustainable Science & Technology
Vassilis Athanasiadis, Dimitrios Palaiogiannis, Konstantina Poulianiti, Eleni Bozinou, Stavros Lalas, Dimitris P. Makris
Summary: In this study, a novel food-grade solvent GL-CA-Pro was synthesized and tested for the extraction of polyphenols from agri-food waste biomass. The results showed that GL-CA-Pro was more effective than other deep eutectic solvents commonly used for polyphenol extraction, and it increased the polyphenol content and antioxidant activity in red grape pomace and olive leaves. However, the suitability of GL-CA-Pro as a solvent for different polyphenolic constituents varied.
Article
Food Science & Technology
Johnatt Allan Rocha de Oliveira, Paula de Paula Menezes Barbosa, Gabriela Alves Macedo
Summary: This paper evaluated the methodologies for extracting phenolic compounds using Deep Eutectic Solvents (DES) in combination with pectinlyase. The results showed that DES associated with pectinlyase had higher concentration of phenolic compounds and antioxidant activity, indicating its excellent potential for extracting flavonoids from citrus pomace.
Article
Chemistry, Applied
Mingrui Chen, Marc Lahaye
Summary: Three natural deep eutectic solvents were tested as pretreatments for apple pomace prior to pectin extraction. CC:LA and CC:U pretreatments showed similar overall recovery yields, while CC:OA led to polysaccharide degradation. CC:LA pretreatment at 40 degrees C for 1 hour helped maintain cell wall monosaccharide composition and facilitated extraction of high molecular weight pectin.
FOOD HYDROCOLLOIDS
(2021)
Article
Biochemistry & Molecular Biology
Rodrigo T. Neto, Sonia A. O. Santos, Joana Oliveira, Armando J. D. Silvestre
Summary: This study explores the possibility of combining eutectic solvents with microwave assisted extraction in the extraction of PACs from grape pomace. The combination proves to be effective in improving both the extraction yield and the mean degree of polymerization, while also reducing the extraction time.
Article
Biochemistry & Molecular Biology
Raquel Canadas, Blanca Saenz de Miera, Paloma Mendez, Emilio J. Gonzalez, Maria Gonzalez-Miquel
Summary: The study focuses on using natural eutectic solvents (NAESs) for the valorization of grape waste in a circular economy context, aiming to extract valuable antioxidants for food and fine chemical applications. After evaluating 15 NAESs, it was found that a solvent combination of 1,2-butanediol and betaine, with microwave-assisted extraction at 100 degrees C for 3 min, achieved successful recovery of antioxidants. This NAESs-based MAE method has great potential for the antioxidants market and sustainable development in the winery sector.
Article
Environmental Sciences
Inmaculada Carmona, Itziar Aguirre, Daniel M. Griffth, Aranzazu Garcia-Borrego
Summary: The valorization of olive mill waste (OMW) was studied in three stages: OMW generation, recovery of bioactive phenolic compounds using natural deep eutectic solvents (NADESs), and vermicomposting with earthworms. The use of citric acid and fructose (CF) in NADESs was the most effective solvent to obtain phenolic extracts from fresh OMW. Mixing the dephenolized OMW with horse manure and straw produced the highest quality vermicompost, compliant with European standards for organic fertilizers. This integrated circular economy design enables the olive oil industry to transition to sustainable production.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Environmental
Chun-Chi Chen, Yen -Hui Huang, Jia-Yu Fang
Summary: The study demonstrates that hydrophobic deep eutectic solvents (DESs) are efficient in eliminating hydrophilic VOCs due to their high absorption capacity and favorable gas-to-liquid mass transfer. Among the DESs explored, the one containing thymol and decanoic acid in a 1:1 molar ratio exhibits the highest acetone absorption capacity, showing the key role of hydrogen bonding interaction in achieving superior solubility of acetone in DESs. The absorbed acetone can be easily removed from the DESs, making the process economically and ecologically beneficial for hydrophilic VOC elimination.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Biochemistry & Molecular Biology
Aina Mir-Cerda, Merce Granados, Javier Saurina, Sonia Sentellas
Summary: Agri-food industries produce a large amount of waste, which can be effectively reutilized within the circular economy. A study optimized the extraction of phenolic compounds from olive tree leaves using natural deep eutectic solvents (NADES), a more environmentally friendly alternative to conventional solvents. The NADES extraction showed improved efficiency compared to ethanol/water extraction, as confirmed by high-performance liquid chromatography coupled to tandem mass spectrometry (HPLC-MS/MS) analysis. The main polyphenols identified in the NADES extract were Luteolin-7-Oglucoside, Oleuropein, 3-Hydroxytyrosol, Rutin, and Luteolin.
Article
Food Science & Technology
Hefei Zhao, Roberto J. Avena-Bustillos, Selina C. Wang
Summary: The study explored the extraction of bioactive compounds from olive pomace in California, showing that purified extracts had higher antioxidant activities, potentially serving as natural antioxidants, preservatives, and antimicrobials in clean-label foods in the US.
Article
Food Science & Technology
Oscar A. Munoz-Bernal, Alma J. Coria-Oliveros, Laura A. de la Rosa, Joaquin Rodrigo-Garcia, Nina del Rocio Martinez-Ruiz, Sonia G. Sayago-Ayerdi, Emilio Alvarez-Parrilla
Summary: Moderate consumption of red wine has been associated with the prevention of cardiovascular diseases, with phenolic compounds playing a key role in the cardioprotective effects by inhibiting platelet aggregation, modulating the lipid profile, and promoting vasorelaxation. The antioxidant capacity of these compounds also helps prevent ROS generation and LDL oxidation. Specific phenolic compounds like resveratrol and quercetin are linked to promoting NO production and inhibiting platelet aggregation, albeit at concentrations lower than those found in red wines. Synergic and additive effects of a mix of phenolic compounds contribute to the overall cardioprotective effects observed in red wine and its byproducts.
FOOD RESEARCH INTERNATIONAL
(2021)
Article
Chemistry, Multidisciplinary
Simona Gavrilas, Ioan Calinovici, Sabin Chis, Claudiu-Stefan Ursachi, Mirabela Rat, Florentina-Daniela Munteanu
Summary: This study explores the feasibility of using waste for wastewater treatment. The potential of grape pomace for wastewater remediation is evaluated through testing its antioxidant properties and organic phosphorus compound concentration.
APPLIED SCIENCES-BASEL
(2022)
Article
Biochemistry & Molecular Biology
Manuela Panic, Veronika Gunjevic, Kristina Radosevic, Marina Cvjetko Bubalo, Karin Kovacevic Ganic, Ivana Radojcic Redovnikovic
Summary: The aim of this work is to develop an industrially suitable process for the sustainable waste disposal in wine production. The proposed process involves the development of an environmentally friendly method for the isolation of biologically active compounds from Grasevina grape pomace according to the green extraction principles, in order to obtain a ready-to-use extract. Through the use of DES as extraction solvents and the assistance of the COSMOtherm software, the optimal extraction method was successfully screened, ultimately achieving the expected application.
Article
Environmental Sciences
Diego Rodriguez-Llorente, Diego Martin-Gutierrez, Pablo Suarez-Rodriguez, Pablo Navarro, Silvia Alvarez-Torrellas, Juan Garcia, Marcos Larriba
Summary: This study investigated the extraction of phenolic compounds from olive vegetation water, which contains these compounds in a more diluted dosage. The use of terpenoids and terpene-based hydrophobic eutectic solvents proved to be more effective than conventional solvents. The proposed method offers a promising approach for the extraction of phenolic compounds from olive vegetation water.
ENVIRONMENTAL RESEARCH
(2023)
Review
Food Science & Technology
Francesca Curci, M. M. Cavalluzzi, G. Milani, M. L. Clodoveo, I. Radojcic Redovnikovic, S. Cellamare, C. Franchini, D. Mandracchia, F. Corbo
Summary: This review discusses a collection of research papers on the applications of bamboo shoot in pharmaceutical and food fields, focusing on its chemical profile, different biological activities, uses, traditional recipes, methods of conservation, and treatments. To the best of our knowledge, this is the first comprehensive review exclusively focused on the applications of bamboo shoot in different fields.
FOOD REVIEWS INTERNATIONAL
(2023)
Article
Chemistry, Applied
Durdica Bozic Luburic, Nina Bilandzic, Ivana Varenina, Ines Varga, Bozica Solomun Kolanovic, Darija Vrataric, Ivana Radojcic Redovnikovic
Summary: The use of NSAIDs in animal husbandry for food production has increased due to raised awareness of animal welfare issues, leading to a need for monitoring NSAID residues in animal products. A method for simultaneous analysis of 27 NSAIDs in milk and muscle samples was developed and validated, revealing quantifiable residues for diclofenac, ketoprofen, and salicylic acid mainly in milk samples.
FOOD ADDITIVES AND CONTAMINANTS PART A-CHEMISTRY ANALYSIS CONTROL EXPOSURE & RISK ASSESSMENT
(2022)
Article
Chemistry, Analytical
Davor Valinger, Matea Kusen, Maja Benkovic, Tamara Jurina, Manuela Panic, Ivana Radojcic Redovnikovic, Jasenka Gajdos Kljusuric, Ana Jurinjak Tusek
Summary: This study compared the efficiency of conventional extraction, microwave-assisted extraction, and microwave-ultrasound-assisted extraction for the extraction of bioactive molecules from olive leaves. The results showed that microwave-ultrasound-assisted extraction provided the highest amount of total polyphenols and the highest antioxidant activity.
Article
Biochemistry & Molecular Biology
Iva Zonjic, Lidija-Marija Tumir, Ivo Crnolatac, Filip Supljika, Livio Racane, Sanja Tomic, Marijana Radic Stojkovic
Summary: Interactions between a series of benzothiazole ligands and nucleic acid structures were screened using competition dialysis. Two compounds demonstrated high affinities against 13 nucleic acid structures, while another compound showed high selectivity among the studied compounds. Additionally, some compounds exhibited specific effects on certain nucleic acid structures.
Article
Biochemistry & Molecular Biology
Manuela Panic, Mia Radovic, Marina Cvjetko Bubalo, Kristina Radosevic, Marko Rogosic, Joao A. P. Coutinho, Ivana Radojcic Redovnikovic, Ana Jurinjak Tusek
Summary: The aim of this study was to develop a simple and easy-to-use model for predicting the pH values of deep eutectic solvents (DESs). By measuring and mathematically interpreting the pH values of 38 different DESs, and using models such as multiple linear regression, piecewise linear regression, and artificial neural networks, it was found that piecewise linear regression and artificial neural networks can predict the pH values of DESs well.
Article
Biochemistry & Molecular Biology
Iva Zonjic, Marijana Radic Stojkovic, Ivo Crnolatac, Ana Tomasic Paic, Silvia Psenicnik, Aleksey Vasilev, Meglena Kandinska, Mihail Mondeshki, Stanislav Baluschev, Katharina Landfester, Ljubica Glavas-Obrovac, Marijana Jukic, Juran Kralj, Anamaria Brozovic, Lucija Horvat, Lidija-Marija Tumir
Summary: New monomethine, unsymmetrical styryl dyes consisting of benzothiazole and N-methylpiperazine or N-phenylpiperazine scaffolds were synthesized and studied for their binding affinities for different ds-polynucleotides and G-quadruplex. The substitution of piperazine unit strongly influenced their binding modes, affinities, spectroscopic responses, and antiproliferative activities. N-methylpiperazine-substituted compounds showed a preference for AT-DNA polynucleotides and demonstrated AT-minor groove binding, while N-phenylpiperazine substituted compounds showed stronger stabilization of G-quadruplex. Fluorimetric titrations suggested possible mixed stoichiometries with G-quadruplex. Compounds with N-phenylpiperazine fragments exhibited micromolar and submicromolar antiproliferative activity, particularly against leukemia and lymphoma.
BIOORGANIC CHEMISTRY
(2022)
Article
Chemistry, Applied
Iva Zonjic, Atanas Kurutos, Petra Mihovilovic, Ivo Crnolatac, Lidija-Marija Tumir, Ana Tomasic Paic, Juran Kralj, Lucija Horvat, Anamaria Brozovic, Ranko Stojkovic, Marijana Radic Stojkovic
Summary: A series of dicationic monomethine cyanine dyes were synthesized with structural alterations to examine their interactions with DNA and RNA. The chlorinated cyanine dye showed strong stability in triplex helices and tendency for H-aggregate formation. These dyes exerted a significant effect on tumor cell viability, especially in HeLa and A549 cell lines. Fluorophores 2 and 3 preferentially accumulated in mitochondria and showed promising therapeutic potential.
Article
Biochemistry & Molecular Biology
Ivana Fabijanic, Atanas Kurutos, Ana Tomasic Paic, Vanja Tadic, Fadhil S. Kamounah, Lucija Horvat, Anamaria Brozovic, Ivo Crnolatac, Marijana Radic Stojkovic
Summary: The binding interactions of six ligands with various nucleic acid structures were evaluated using fluorescence, UV/Vis, and circular dichroism spectroscopy. The results showed that the cyanine dyes bind with G-quadruplex structures through end pi-pi stacking interactions and possible additional interactions with the nucleobases/phosphate backbone. The ability of cyanines to distinguish different nucleic acid structures was demonstrated by their varying ICD signals. Additionally, the cyanines exhibited inhibitory effects on cell viability and showed potential as theranostic agents.
Article
Toxicology
Ivana Kmetic, Teuta Murati, Veronika Kovac, Irena Landeka Jurcevic, Branimir Simic, Kristina Radosevic, Marina Miletic
Summary: Our research aimed to investigate the activity of a newly synthesized ferrocene-containing triacyl derivative of resveratrol and found that it had lower cytotoxicity and retained antioxidant properties compared to resveratrol, indicating its potential in protecting cells from oxidative stress.
JOURNAL OF APPLIED TOXICOLOGY
(2023)
Review
Polymer Science
Emilija Zdraveva, Visnja Gaurina Srcek, Klara Kraljic, Dubravka Skevin, Igor Slivac, Marko Obranovic
Summary: Plant proteins are attracting attention in various fields due to their abundant availability, customizable properties, and beneficial characteristics. This review explores the application of plant proteins in biomedicine by focusing on their electrospinning feasibility and biomedical potential. It discusses the recent advancements and promising directions of an electrospun plant protein-based system, using examples of zein, soy, and wheat proteins. Assessments of proteins from less-represented plant sources, such as canola, pea, taro, and amaranth, are also highlighted.
Article
Food Science & Technology
Giorgio Grillo, Silvia Tabasso, Giorgio Capaldi, Kristina Radosevic, Ivana Radojcic-Redovnikovic, Veronika Gunjevic, Emanuela Calcio Gaudino, Giancarlo Cravotto
Summary: This paper explores the potential of recovering antioxidants from violet potato peels (VPPs) using natural deep eutectic solvents (NaDES) under ultrasound (US) and microwave (MW)-assisted extraction. The performances of these enabling technologies surpass those of conventional extractions in terms of antioxidant activity. Long-term storage experiments show that NaDES extracts have a 5.6-fold extension in shelf-life. Furthermore, in vitro studies demonstrate that NaDES extracts exhibit significantly higher antiproliferative activity on both Caco-2 cells and HaCaT cells compared to ethanolic extracts.
Article
Pharmacology & Pharmacy
Marta Jurkovic, Marijana Radic Stojkovic, Ksenija Bozinovic, Davor Nestic, Dragomira Majhen, Estefania Delgado-Pinar, Mario Inclan, Enrique Garcia-Espana, Ivo Piantanida
Summary: This article introduces a novel polyamine compound that exhibits strong intramolecular interactions and has strong binding and antiproliferative activity, making it applicable in cancer and gene therapy.
Article
Chemistry, Inorganic & Nuclear
Jorge Gonzalez-Garcia, Carolina Galiana, M. Auxiliadora Dea-Ayuela, Marijana Radic Stojkovic, Sonia Lopez-Molina, Cristina Galiana-Rosello, Salvador Blasco, Ivo Piantanida, Enrique Garcia-Espana
Summary: Metal complexes have become a focus of biomedical research due to their ability to explore unexplored chemical space and provide additional functionalities for diagnosis and therapy. This study evaluated the interaction between two polytopic polyaza ligands, their zinc complexes, and DNA/RNA using various spectroscopic assays. The results showed selective binding of zinc-PHENPOD complexes to GC-containing DNA and stabilization of AT-based DNA by PYPOD metal complexes. Additionally, the ligands and their trinuclear zinc complexes exhibited high antimicrobial activity. This research provides valuable insights into the nucle-arity of polytopic polyaza ligands in DNA/RNA binding and antimicrobial effects.
DALTON TRANSACTIONS
(2023)
Article
Biochemistry & Molecular Biology
Valentina Rep, Rebeka Stulic, Sanja Kostrun, Bojan Kuridza, Ivo Crnolatac, Marijana Radic Stojkovic, Hana Cipcic Paljetak, Mihaela Peric, Mario Matijasic, Silvana Raic-Malic
Summary: In this research, a series of tetrahydropyrimidinyl-substituted benzimidazoles were synthesized and tested for their antibacterial activities against both Gram-positive and Gram-negative bacteria. The addition of aromatic moiety to the phenoxymethylene linker was found to enhance the antibacterial potency. Compund 15a, a benzoyl-substituted benzimidazole derivative, exhibited the highest activity against various pathogens.
RSC MEDICINAL CHEMISTRY
(2022)
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.
