Medicinal Chemistry and Pharmaceutics Commons^™

In Vivo And In Vitro Perspectives In Parkinson's Disease: Mechanisms And The Role Of Phytomedicine, Jeewanjot Singh, Devinder Kumar

Journal of Food and Drug Analysis

Parkinson's disease (PD) is a progressive neurodegenerative disorder marked by dopaminergic neuronal loss,oxidative stress, neuroinflammation, and a-synuclein aggregation. Despite advances, current treatments only offersymptomatic relief without altering disease progression. This review aims to evaluate the therapeutic potential of plant-derived phytochemicals in PD through evidence from both in vivo and in vitro experimental models. Key findingsindicate that rodent models (e.g., MPTP, rotenone) and neuronal cell lines (e.g., SH-SY5Y) help replicate PD pathologyand mechanistic insights. Phytochemicals such as baicalein, morin, ferulic acid, and bacopa demonstrate neuroprotectiveeffects via antioxidant, anti-inflammatory, and mitochondrial-stabilizing pathways. Nanotechnology and brain orga-noids further improve translational relevance. In conclusion, …

Global Research Trends On Avocado Oil And Its Fatty Acid Composition: A Bibliometric Review, Ahmad Kamrullah Aras, Abdul Rohman

Journal of Food and Drug Analysis

The high content of unsaturated fatty acids in avocado oil (Persea americana) has prompted in-depth exploration across research subjects. This study uses bibliometric analysis to assess global research trends on avocado oil and its fatty acid composition from 2004 to 2024. The search string retrieved 255 articles from the Scopus database and then analyzed using R BibliometriX and VOSviewer software. These tools analyze descriptive structures and collaborative patterns and create network data maps. For comparison, we separated the data into two research periods, namely 2004-2013 and 2014-2024. There was a significant increase in the number of publications, with …

Yiqi Yangyin Tongluo Prescription Targets Lncrna Vim-As1 To Regulate Foxk2/Mtor To Promote Autophagy And Inhibit Renal Tubular Epithelial Cell Apoptosis, Rucui Yu, Ruiying Wu, Tingting Chen, Jingwei Xu

Journal of Food and Drug Analysis

Diabetic nephropathy (DN) is one dominating reason for death in diabetic patients, and its incidence is high. It has been reported that Yiqi Yangyin Tongluo prescription (YYTP) can relieve inflammation, and it owns better clinical effects in the treatment of DN. However, the molecular mechanisms of YYTP in the treatment of DN still keep unclear, and deeply investigations are needed. In this study, it firstly was manifested that YYTP can repress the lncRNA VIM-antisense 1 (VIM-AS1) expression in high glucose (HG)-evoked HK-2 cells. Overexpression of VIM-AS1 roll-backed the inhibitive impacts of YYTP on cell apoptosis in HG-triggered HK-2 cells. Additionally, …

Evaluating The Cost-Effectiveness Of Atezolizumab-Bevacizumab In Advanced Hepatocellular Carcinoma: Insights From Taiwan, Tsung-Wei Chang, Wei-Chiao Chang, Wan-Hsuan Chou, Wei-Pin Chang, Chun-Nan Kuo

Journal of Food and Drug Analysis

Following the observed significant improvements in overall survival and progression-free survival in clinical trials, the combination of atezolizumab and bevacizumab has been recommended as a first-line therapy for patients with unresectable hepatocellular carcinoma. Despite its clinical benefits, the high cost associated with this treatment poses a substantial challenge in routine practice in Taiwan. This study aims to assess the cost-effectiveness of atezolizumab plus bevacizumab in comparison to sorafenib monotherapy. This study utilized partitioned survival analysis and extrapolated survival over a 20-year horizon to conduct a cost-effectiveness analysis from the perspective of the National Health Insurance Administration. Efficacy and utility data …

Ping-Chong-Jiang-Ni Formula Effectively Inhibits Migration And Invasion Of Endometriosis 12z Cell Line Via Trip13, Jiahua Peng, Shuzhen Liu, Yunxiang Xie, Min Xiao, Chichiu Wang, Ruining Liang

Journal of Food and Drug Analysis

The Ping-Chong-Jiang-Ni Formula (PCJNF), a compound of Traditional Chinese Medicine (TCM), has demonstrated remarkable clinical effectiveness and is widely utilized in the treatment of endometriosis (EMs). Previous studies have shown that PCJNF inhibits the proliferation and induces the apoptosis of ectopic endometrial stromal cells (EESCs) by modulating the JNK signaling pathway. In our most recent study, published in January 2024, we found that PCJNF effectively alleviates EMs-associated pain by reducing inflammatory mediators, including tumor necrosis factor-alpha (TNF-α) and nerve growth factor (NGF). Furthermore, PCJNF down-

regulates the expression of transient receptor potential vanilloid 1 (TRPV1), phosphorylated TRPV1 (p-TRPV1), and protein …

In Vitro Metabolic Profiling Of Methylenedioxy-Substituted Synthetic Cathinones For Enhanced Detection In Urine Sample Analysis, Ya-Ling Yeh, Chin-Lin Hsieh, Yi-Jia Huang, Yu-Hsiang Chang, Sheng-Meng Wang

Journal of Food and Drug Analysis

Synthetic cathinones are a widely abused class of new psychoactive substances that pose significant challenges in forensic toxicology owing to their complex metabolic pathways and lack of verified reference standards. This study investigated the in vitro metabolism of nine methylenedioxy-substituted synthetic cathinones, including methylone and eight structural isomers, which were categorized into three groups: Group 1 (dimethylone, ethylone, and butylone), Group 2 (dibutylone, pentylone, and eutylone), and Group 3 (N-ethylpentylone and dipentylone). Pooled human liver microsomes, cytosol, and uridine diphosphate glucuronic acid were used to identify phase Ⅰ and Ⅱ metabolites by liquid chromatography–quadrupole time-of-flight mass spectrometry. Key pathways included …

Integrating Network Analysis And Experimental Validation To Reveal The Ferroptosis-Associated Mechanism Of Velvet Antler In The Treatment Of Chronic Atrophic Gastritis, Quan Liao, Zhenzhen Guo, Chenchun Ding, Renjie Zuo, Guoyan Liu

Journal of Food and Drug Analysis

Chronic atrophic gastritis (CAG) is precancerosis with limited treatment options. This study investigated the therapeutic effects of velvet antler (VA), a traditional natural medicine, on CAG, with a focus on ferroptosis. In vivo experiments demonstrated the efficacy of VA in alleviating CAG, and network pharmacology analysis revealed its involvement in related terms, including inflammation, oxidative stress, and cell proliferation. Analyses further confirmed the modulation of ferroptosis by VA, particularly via the Keap1-Nrf2/HO-1/GPX4 pathway. In vitro assays supported these findings, demonstrating the ability of VA to reduce methylnitronitrosoguanidine-induced inflammation, oxidative stress, and ferroptosis in GES-1. This study provides a basis for …

Jiao San Xian Granule Containing Prebiotic Alleviate Functional Dyspepsia By Regulating Intestinal Flora And The Secretion Of Inflammatory Response, Huimin Pei, Mengyuan Zhao, Hongyue Wang, Xindi Zhang, Caihong Shi, Xiangrong Zhang

Journal of Food and Drug Analysis

Jiao Sanxian (JSX) consists of three traditional Chinese medicine including charred hawthorn, malt and Liu Shen Qu, they are also from Chinese medicine homologous food. It is commonly used to relieve functional dyspepsia (FD). The present study aims to explore the mechanism of JSX (granule), with the addition of prebiotics for the treatment of FD using mice model. The network pharmacology and molecular docking were used to forecast therapeutic targets for JSX. Based on the protein-protein interaction (PPI) results, thirteen targets exhibited strong interactions with each other. The results of network pharmacology and molecular docking revealed therapeutic activity of JSX …

Regulatory Framework And Challenges For Live Biotherapeutic Products In Taiwan, Shirley Pan, Jia-Chuan Hsu, Kuo-Teng Hung, Ching-Jung Ho

Journal of Food and Drug Analysis

Products containing live microorganisms may be classified as food or drugs depending on their intended use; live biotherapeutic products (LBPs) with therapeutic claims are defined as medicinal products containing live bacteria or yeasts intended to prevent or treat disease. Based on their characteristics, LBPs are classified as biological drugs and must be registered as biological drugs before they can enter the Taiwanese market. As research into the microbiota and its role in health and disease continues to advance, LBPs are expected to play an increasingly important role in medicine and biotechnology. With the growing popularity of microbial applications in recent …

Aspergillosis: A Comprehensive Review Of Pathogenesis, Drug Resistance, And Emerging Therapeutics, Amanpreet Singh, Jeewanjot Singh, Sandeep Kumar

Journal of Food and Drug Analysis

Aspergillosis stands as a primary opportunistic fungal infection which mainly results from Aspergillus fumigatus events that have gained more importance because of its multiple infection patterns and developing antifungal resistance. Healthcare providers identify two main ends of the aspergillosis spectrum which include allergic responses and invasive systemic infections that affect mainly immunocompromised subjects. This review presents a detailed summary for understanding the epidemiology of aspergillosis along with its risk factors as well as pathogenesis and host immune response and diagnostic difficulties. The analysis puts significant weight on increasing azole and echinocandin resistance that has become worse because of agricultural and …

Assessing The Behavioral Impact Of Pyridostigmine Bromide In Rats, Noah A. Martin

Honors Theses

Pyridostigmine bromide (PB) is an organophosphate (OP) nerve agent prophylactic used to protect warfighters against chemical warfare agents. OPs inhibit the neural enzyme acetylcholinesterase (AChE) in the brain. This leads to the buildup of acetylcholine, causing respiratory failure, seizures, and death. PB functions by inhibiting ~30% of peripheral AChE temporarily, protecting the enzymes so that the body is able to restore sufficient cholinergic function post-exposure. PB does not cross the blood-brain barrier, though it may still indirectly affect toxicity in the brain due to repeated AChE inhibition throughout treatment, or by inhibition of non-target ChE’s in the blood. The aim …

Bacillus Coagulans 198 And L-Glutamine In Combination Attenuated Intestinal Mucositis In A 5-Fu-Induced Balb/C Mouse Model Via Modulation Of Gut Microbial Community Structure And Diversity, Wei-Jen Chen, Siou-Ru Shen, Wei-Hsuan Hsu, Bao-Hong Lee, Yu-Shan Wei, Hui-Fang Chu, Ming-Chung Tseng, Tang-Long Shen

Journal of Food and Drug Analysis

5-Fluorouracil (5-FU) disrupts intestinal cells and causes dysbiosis in the gut microbiota. This study explores the potential of Bacillus coagulans-198 (BC198) to mitigate gut microbiota imbalance and mucositis caused by 5-fluorouracil. L-glutamine is used to alleviate mucositis, and this study found that BC198 exhibits protective effects on the gut, including maintaining a healthy microbiota and reducing intestinal inflammation, regardless of whether L-glutamine is used in combination. Therefore, it can help reduce the deterioration of the gut environment caused by 5-fluorouracil. BC198 can be provided to cancer patients to prevent severe side effects, thereby improving their treatment outcomes and nutritional …

Protective Role Of Hsian-Tsao Ethanol Extract Against Body Fat, Serum Lipid Profiles, And Hepatic Lipid Profiles In High-Fat Diet-Fed Rats, Ching-Chang Cho, Gow-Chin Yen, Hsin-Yi Lee, Chun-Tse Tsai, Wei-Tang Chang, Chin-Lin Hsu

Journal of Food and Drug Analysis

This study investigated the preventive effects of a 40% ethanol extract of Hsian-tsao (40EEHT) on obesity in high-fat diet (HFD)-induced obese rats. Male Wistar rats were administered 0, 100, 200, or 500 mg/kg of 40EEHT, resulting in reduced body weight, total body fat, and hepatic tissue weight after 8 weeks. 40EEHT also decreased adipocyte size, improved lipid profiles, alleviated oxidative stress, and enhanced hepatic antioxidant enzyme activities. Additionally, it regulated fatty acid metabolism by reducing lipogenesis and increasing lipolysis and β-oxidation, suggesting its potential as an anti-obesity dietary supplement.

Xanthohumol As A Potential Therapeutic Strategy For Acute Myeloid Leukemia: Targeting The Flt3/Srpk1 Signaling Axis, Duan-Na Zhang, Wen-Ya Yang, Xiao-Xue Hu, Xiao-Min-Ting Song, Chuan-Jie Guo, Fu Peng, Yu-Zhi Li, Zhi-Xing Cao

Journal of Food and Drug Analysis

Xanthohumol (XN) is an isoprene chalcone found in hops (Humulus lupulus L.), a food ingredient with a wide range of pharmacological activities. The aim of this study was to reveal the therapeutic effect of XN on acute myeloid leukemia (AML) and the potential underlying molecular mechanism. Through network pharmacology analysis, molecular docking, and HTRF determination, XN was shown to inhibit the kinase activities of FLT3 and SRPK1 by targeting their ATP-binding domains, with IC₅₀ values of 1.51 ± 0.44 μM and 0.37 ± 0.15 μM, respectively. By inhibiting AML cell proliferation, promoting apoptosis, regulating autophagy, and inhibiting …

Within-Trial Cost-Effectiveness Of Novel Macrophage-Regulating Treatment On Wound Healing In Patients With Diabetic Foot Ulcers, Hsuan-Yu Su, Chen-Yi Yang, Yi-Hsin Chang, Shyi-Gen Chen, Jui-Ching Chen, Hui-Ju Ho, Huang-Tz Ou, Shihchen Kuo

Journal of Food and Drug Analysis

An M1/M2 macrophage-regulating treatment, ON101 cream, has shown its superior healing efficacy for diabetic foot ulcers (DFUs) versus standard absorbent dressing, according to a phase Ⅲ trial. Given its high cost, corroborating the economic value of ON101 treatment can facilitate clinical and policy decision-makings. This study sought to evaluate the cost-effectiveness of ON101 versus an absorbent dressing for patients with DFUs from Taiwan's healthcare sector perspective. This economic evaluation utilized effectiveness and cost data (in 2022 USD) from a randomized controlled trial of ON101, published literature, and Taiwan’s National Health Insurance program. Incremental cost-effectiveness ratio (ICER) against willingness-to-pay (WTP) threshold …

Method Development For The Determination Of Phosphine Residues In Foods, Shu-Wei Lin, Yu-Ting Liu, Ya-Chun Chou, Yu-Ching Hung, Shu-Han Chang, Ya-Min Kao, Su-Hsiang Tseng, Der-Yuan Wang

Journal of Food and Drug Analysis

Phosphine (PH₃) is a fumigant used for pest control of stored products and foods. In Taiwan, PH₃ has the maximum residue level (MRL) in 14 foods, including dried fruits, vegetables, spices, nuts, crops, roots, and tuber vegetables. In this study, gas chromatography/mass spectrometry coupled with a headspace sampler (HS-GC/MS) was used to determine the PH₃ content in foods. The stability of the PH₃ standard was evaluated either directly using the gas standard or indirectly using zinc phosphide (Zn₃P₂) with an acid. The optimal conditions for the headspace agitator were determined to …

A Deep Dive Into The Orchard Of Health: Exploring The Anti-Cancer And Anti-Aging Potential Of Apple Polyphenols, Li-Ching Chen, Han-Sheng Chang, Yuan-Soon Ho

Journal of Food and Drug Analysis

Apples, a ubiquitous and beloved fruit, harbor a treasure trove of bioactive compounds, with apple polyphenols (APs) taking center stage. This review delves into the latest scientific advancements illuminating the anti-cancer and anti-aging properties of APs. We dissect the intricate mechanisms by which APs combat cancer initiation, progression, and metastasis, highlighting their prowess in inducing apoptosis, inhibiting angiogenesis, and modulating cell signaling pathways. Furthermore, we explore the multifaceted ways APs combat aging, including their potent antioxidant and anti-inflammatory actions, DNA protective effects, and ability to modulate cellular processes like autophagy and metabolism. This comprehensive review underscores the therapeutic promise of …

Identification Of Fentanyl And Fentanyl Analogs Found In Human Urine Using Gas Chromatography-Mass Spectrometry, Adam M. Fisher

Electronic Theses & Dissertations (2024 - present)

Identification of fentanyl and its analogs in unknown samples is a frequent practice completed in forensic crime labs, as the fentanyl epidemic continues. With the continued increase in illicit drug use, crime labs are not able to keep up with the flooding of new fentanyl analogs being developed, resulting in new analogs slipping past the crime labs’ authority. This research is to start to develop a database of commonly found fentanyl analogs in New York State. Gas Chromatography-Mass Spectrometry (GC-MS) is a widely used method for the detection and identification of illicit drugs in forensic crime labs. A database that …

Impact Of Tetrahydrocannabinol (Thc) On Daphnia Magna Heart Rate, Ashley Cosgrave

Williams Honors College, Honors Research Projects

Marijuana (Cannabis) is currently federally illegal within the United States and classified as a Schedule I drug. This leaves a large research gap on the impacts of Tetrahydrocannabinol (THC) use. Daphnia magna are frequently used as a model organism for the human heart and toxicology screenings due to their myogenic heart, similarities in physiological pathways, and sensitivity to toxins. As such, in order to bridge the research gap and uncover potential use of Daphnia magna as a model organism for humans in regard to impact on heart rate, we hypothesized that if Daphnia magna possess CB1 receptors or an equivalent …

Acknowledgment Of Reviewers_2024

Journal of Food and Drug Analysis

No abstract provided.

Alanine Supplementation Enhancing Cordycepin Production In Cordyceps Militaris Via Upregulation Of Cns2 And Cns3 Genes Expression Levels, Wenbin Yu, Zeying Zhao, Bin Zeng, Yayi Tu, Bin He

Journal of Food and Drug Analysis

Cordycepin, a key bioactive compound produced by Cordyceps militaris, faces the challenge of low productivity forcommercial use. In this study, alanine supplementation in Cordyceps militaris boosted cordycepin production, peakingat 3 mg/g with 12 g/L concentration. Transcriptome analysis revealed 1711 differentially expressed genes, Pathwayanalysis indicates that protein processing in the endoplasmic reticulum was the most affected pathway. In addition, thetranscriptome showed that adenylosuccinate lyase is essential for the synthesis of cordycepin. The modulation of fourgenes (Cns1-4) points to a regulatory mechanism that could increase cordycepin biosynthesis, offering a strategy to overcome low productivity for commercial applications.

Cinnamic Acid Lowers Blood Pressure And Reversesvascular Endothelial Dysfunction In Rats, Abdul Jabbar Shah, Hafiz Misbah-Ud-Din Qamar, Umme Salma, Taous Khan

Journal of Food and Drug Analysis

Cinnamic acid (CA) possesses important cardiovascular effects such as cardioprotective, antiatherogenic, anti-hyperlipidemic and antioxidant, which predicts its potential role in the treatment of hypertension. The study wasexecuted to investigate the antihypertensive potential of CA in Sprague Dawley (SD) rats followed by evaluation indiverse vascular preparations. Invasive blood pressure monitoring technique was used in normotensive and hyper-tensive rats, under anesthesia. Isolated aortic rings from rat and rabbit, Langendorrf's perfused isolated rabbit heart and guinea-pig right atria were used to probe the underlying mechanisms. The responses were recorded with pressure andforce transducers connected to PowerLab Data Acquisition System. Intravenous administration of CA …

Cost-Effectiveness Analysis Of Pembrolizumab With Chemotherapy For Metastatic Nonsquamous Non-Small Cell Lung Cancer In Taiwan, Wei-Ling Lee, Wan-Hsuan Chou, Wei-Pin Chang, Tsung-Wei Chang, Chun-Nan Kuo, Wei-Chiao Chang

Journal of Food and Drug Analysis

This study was aimed to evaluate the cost-effectiveness of pembrolizumab with chemotherapy (pembrolizumabcombination therapy) and compare it with standard-of-care platinum-based chemotherapy (chemotherapy alone) as a first-line treatment for metastatic nonsquamous NSCLC from the perspective of Taiwan's third-party-payer public health-care system. We used a partitioned survival model with an estimated time horizon of 10 years. The partitionedsurvival model uses KaplaneMeier estimates of progression-free and overall survival from the KEYNOTE-189 clinicaltrial. The quality-adjusted life-year (QALY) values were based on utility values by progression status calculated from theKEYNOTE-189 trial. This study examined costs related to treatment regimens, disease management, second-line therapy,end-of-life care, and …

Fluorescent “On–Off–On” Sensor Based On N, P Co-Doped Carbon Nanoparticles For Specific Detection Of Fe3+ And Ascorbic Acid, Li Li, Ming Zhang, Xiang Liu, Shaoqing Zhu

Journal of Food and Drug Analysis

Ascorbic acid (AA) is used as a food additive for its antibacterial and antioxidant properties. However, excessive intake of AA is harmful to humans. Therefore, the detection of Fe³⁺ and AA is generally recognized to be meaningful. In this work, a one-step hydrothermal tactics is developed for the preparing nitrogen and phosphorus co-doped carbon nanoparticles (N, P-CNPs) by using sucrose and ammonium orthophosphate as raw materials. The N, P-CNPs not only exhibited an enhanced fluorescent efficiency with a relatively high quantum yield up to 28%, but also showed satisfactory stability, water solubility and photostability. The fluorescence of N, P-CNPs …

Aromatic Compounds And Organic Acids Identified From Ganoderma Formosanum Exhibit Synergistic Anti-Melanogenic Effects, Chen-Che Hsieh, Chih-Yao Hou, Hsiao-Yun Lei, Darin Khumsupan, Huey-Jine Chai, Pek-Kui Lim, Cheng-Chih Hsu, Sz-Jie Wu, Kai-Wen Cheng, Yi-Chen Chen, Kuan-Chen Cheng

Journal of Food and Drug Analysis

This study reveals the anti-tyrosinase activity of Ganoderma formosanum extracts, pinpointing compounds including gluconic acid, mesalamine, L-pyroglutamic acid, esculetin, 5-hydroxyindole, and salicylic acid, as effective melanin production inhibitors in melanoma cells and zebrafish embryos. Furthermore, multiple molecular docking simulations provided insights into interactions between the identified compounds and tyrosinase, increasing binding affinity up to -16.36 kcal/mol. The enhanced binding of identified compounds to tyrosinase facilitated synergistic inhibitory effects on melanin production. This study highlights the potential of GFE-EA as a source of natural tyrosinase inhibitors and contributes to understanding the role of active compounds extracted from G. formosanum.

Bio-Inspired Chitosan/Polydopamine-Nanoparticle Based Sorbent Bead: A Versatile Platform For Separation And Hplc Analysis Of Tetracycline Antibiotics From Various Sample Matrix, Emmanuvel Arputharaj, Yu-Hui Huang, Shivangi Singh, Chen-Han Zhuang, Kuei-Ying Lin, Sri Sudewi, You-Rong Wu, Yeou-Lih Huang

Journal of Food and Drug Analysis

This study introduces an innovative bio-based sorbent bead crafted by integrating chitosan (CS) biopolymers, Fe(NO₃)₃ and polydopamine nanoparticles (PDA NPs) via glutaraldehyde crosslinking. The primary focus of this study was the concurrent separation of diverse tetracycline antibiotics (TCs), followed by rigorous reversed-phase liquid chromatography analysis. The fabricated CS/Fe@PDA sorbent beads were comprehensively characterized using scanning electron microscopy and energy-dispersive X-ray spectroscopy, revealing a surface rich in active carbon (C), nitrogen (N), and oxygen (O) moieties. The proposed method demonstrated substantial analytical robustness, enabling the sorbent bead to detect low concentrations of TCs, with limit of detection values …

Bitter Acids From Humulus Lupulus L. Alleviate D-Galactose Induced Osteoblastic Senescence And Bone Loss Via Regulating Akt/Mtor-Mediated Autophagy, Tian-Shuang Xia, Sheng-Yan Xu, Li-Yong Lai, Yi-Ping Jiang, Na-Ni Wang, Hai-Liang Xin

Journal of Food and Drug Analysis

Bitter acids (BA) are main component of Humulus lupulus L. (hops). They are known for beer brewing and have various biological and pharmacological properties, especially the bone-protective effect confirmed by our previous in vivo study. Here we aimed to elucidate the anti-senior osteoporosis (SOP) effect of BA on osteoblasts and explore its underlying mechanism. In vitro SOP model was established by D-galactose (D-gal) injured osteoblasts, and the bone formation markers and apoptosis level were measured. mCherry-EGFP-LC3 adenovirus infection and autophagic markers including beclin1 and LC3 proteins were detected to investigate the autophagy level in osteoblasts. To further verify whether BA …

Development And Industrial Application Of Geographical Origin Identification For Taiwanese Oolong Tea, Tien-Lin Liu, Jia-Ru Dai, Tsung-Chen Su, Chun-Huo Chiu, Hsien-Tsung Tsai, Chui-Feng Chiu, Jin-Chih Lin, Chih-Yi Hu

Journal of Food and Drug Analysis

Taiwanese oolong tea is renowned for its excellent quality and enjoys a prestigious reputation both domestically and internationally. In recent years, there has been an issue with imported Taiwanese-style oolong tea being sold as genuine Taiwanese oolong tea, which has adversely affected the brand value of Taiwanese oolong tea. In this study, samples of domestic oolong tea (Taiwanese oolong tea) and Taiwanese-style oolong tea produced abroad (including China, Vietnam, Indonesia, Thailand, etc.) were collected. A multi-elements analysis method was applied to establish an elemental database of tea leaf samples. Subsequently, various widely used classification methods were employed to develop a …

The Effects Of Fermentation By Different Species Oflactic Acid Bacteria On Betalains And Polyphenol Profile And In Vitro Bioactive Potential Of Red Beetroot Juice, Tomasz Sawicki, Monika Jabłońska, Małgorzata Starowicz, Lucyna Kłębukowska, Wioletta Błaszczak

Journal of Food and Drug Analysis

In the current study, the effects of fermentation by Lactobacillus acidophilus, Levilactobacillus brevis or Lactiplantibacillus plantarum (La/Lb/Lp, 1-2.5%) and incubation (30/37℃, C1/C2) of red beetroot juice on the profile of betalains and polyphenols (UHPLC-DAD-MS), and antioxidant capacity using photochemiluminescence (PCL) and spectrophotometric assays (DPPH/ABTS) was investigated. Additionally, anti-glycaemic (anti-AGEs) and anti-cholinergic (anti-AChE) potential in vitro was analysed. Fermentation distinctly initiated isobetanin and neobetaninformation and enhanced flavonoid concentration, emphasising rutin, kaempferol and (+)-catechin. The fermented juices inhibited protein glycation in the BSA-GLU model and showed high DPPH and ABTS values. LP2.5% juice was the only one indicating anti-AChE potential.

Determination And Validation Of Polycyclic Aromatichydrocarbons (Pah4) In Katsuobushi, Plant-Basedfood Supplements, And Cocoa Bean Shells Using Gc-Ms/Ms, Chia-Hsin Liu, Yu-Ning Shin, Ya-Chun Chou, Guan-Jhih Peng, Ying-Ru Shen, Nu-Ching Lin, Shu-Han Chang, Ya-Min Kao, Su-Hsiang Tseng, Der-Yuan Wang

Journal of Food and Drug Analysis

Polycyclic aromatic hydrocarbons (PAHs) are primarily generated through the incomplete combustion or pyrolysis oforganic materials in various industrial processes. Foods may become contaminated with environmental PAHs found inair, soil, or water, or through industrial food processing methods such as smoking, roasting, drying, and grilling. The Ministry of Health and Welfare in Taiwan has established maximum levels for benzo[a]pyrene (BaP) and indicativevalues for BaP as well as PAH4 (the sum of benz[a]anthracene, chrysene, benzo[b]fluoranthene, and benzo[a]pyrene) infoods as operational guidelines. The current study developed an analytical method for simultaneous determination of PAH4 levels in katsuobushi (dried bonito flakes), cocoa bean shells, …