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Journal of Food and Drug Analysis

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https://www.readbyqxmd.com/read/28987377/analysis-of-bioactive-constituents-from-the-leaves-of-amorpha-fruticosa-l
#1
Xueqin Cui, Jing Guo, Ching-Shu Lai, Min-Hsiung Pan, Zhongxiao Ma, Sen Guo, Qingchao Liu, Li Zhang, Chi-Tang Ho, Naisheng Bai
Amorpha fruticosa L. is a Chinese folk medicine and rich in polyphenols. Fifteen known compounds were isolated and identified from the leaves of A. fruticosa L. They are tephrosin (1), 6a,12a-dehydrodeguelin (2), vitexin (3), afrormosin-7-O-β-d-glucopyranoside (4), 2″-O-α-l-rhamnopyranosyl isovitexin (5), rutin (6), chrysoeriol (7), 7-O-methylluteolin (8), trans-p-coumaric acid (9), 2-benzyl-4,6-dihydroxybenzoic acid-4-O-β-d-glucopyranoside (10), formononetin (11), quercetin (12), apigenin (13), β-sitosterol (14), and β-daucosterol (15)...
October 2017: Journal of Food and Drug Analysis
https://www.readbyqxmd.com/read/28987376/pyrrolizidine-alkaloid-derived-dna-adducts-are-common-toxicological-biomarkers-of-pyrrolizidine-alkaloid-n-oxides
#2
Xiaobo He, Qingsu Xia, Kellie Woodling, Ge Lin, Peter P Fu
There are 660 pyrrolizidine alkaloids (PAs) and PA N-oxides present in the plants, with approximately half being possible carcinogens. We previously reported that a set of four PA-derived DNA adducts is formed in the liver of rats administered a series of hepatocarcinogenic PAs and a PA N-oxide. Based on our findings, we hypothesized that this set of DNA adducts is a common biological biomarker of PA-induced liver tumor formation. In this study, we determined that rat liver microsomal metabolism of five hepatocarcinogenic PAs (lasiocarpine, retrorsine, riddelliine, monocrotaline, and heliotrine) and their corresponding PA N-oxides produced the same set of DNA adducts...
October 2017: Journal of Food and Drug Analysis
https://www.readbyqxmd.com/read/28987375/phosphorylation-and-antiaging-activity-of-polysaccharide-from-trichosanthes-peel
#3
Min Zhang, Nana Su, Qianli Huang, Qiang Zhang, Yufen Wang, Jinglei Li, Ming Ye
Polysaccharides from Trichosanthes peel (TPP) were obtained by ultrasound-assisted extraction. TPP-1 was separated from the TPP by Sephadex G-100 column chromatography. Phosphorylation of TPP-1 was carried out and phosphorylated TPP-1 was named as PTTP-1. The results of infrared spectra, (13)C nuclear magnetic resonance spectra and (31)P nuclear magnetic resonance spectra showed that the main structure of PTPP-1 was similar to that of TPP-1 and -H2PO3 groups which were conjugated to C-6 of →4)-α-D-Manp-(1→, C-4 of →6)-α-D-Galp-(1→, C-2 and C-3 of →1)-α-L-Araf, C-2 of →1)-α-L-Araf-(3→, and C-6 and C-3 of →1)-α-D-Glcp...
October 2017: Journal of Food and Drug Analysis
https://www.readbyqxmd.com/read/28987374/exploration-of-ethyl-anthranilate-loaded-monolithic-matrix-type-prophylactic-polymeric-patch
#4
Johirul Islam, Kamaruz Zaman, Srijita Chakrabarti, Nilutpal Sharma Bora, Manash Pratim Pathak, Santa Mandal, Julfikar Ali Junejo, Pronobesh Chattopadhyay
Compromised stability of pharmaceutical formulations loaded with volatiles is a serious problem associated with devices designed to deliver volatile compounds. The present study has been focused to evaluate the stability potential of matrix-type polymeric patches composed of volatile ethyl anthranilate for prophylaxis against vector-borne diseases. Ethyl anthranilate-loaded matrix-type polymeric patches were fabricated by solvent evaporation method on an impermeable backing membrane and attached to temporary release liners...
October 2017: Journal of Food and Drug Analysis
https://www.readbyqxmd.com/read/28987373/quality-assessment-of-trace-cd-and-pb-contaminants-in-thai-herbal-medicines-using-ultrasound-assisted-digestion-prior-to-flame-atomic-absorption-spectrometry
#5
Watsaka Siriangkhawut, Patcharee Sittichan, Kraingkrai Ponhong, Piyanete Chantiratikul
A simple, efficient, and reliable ultrasound-assisted digestion (UAD) procedure was used for sample preparation prior to quantitative determination of trace Cd and Pb contaminants in herbal medicines using flame atomic absorption spectrometry. The parameters influencing UAD such as the solvent system, sample mass, presonication time, sonication time, and digestion temperature were evaluated. The efficiency of the proposed UAD procedure was evaluated by comparing with conventional acid digestion (CAD) procedure...
October 2017: Journal of Food and Drug Analysis
https://www.readbyqxmd.com/read/28987372/qualitative-and-quantitative-characterization-of-secondary-metabolites-and-carbohydrates-in-bai-hu-tang-using-ultraperformance-liquid-chromatography-coupled-with-quadrupole-time-of-flight-mass-spectrometry-and-ultraperformance-liquid-chromatography-coupled
#6
Wei-Fang Zhong, Wing-Sum Tong, Shan-Shan Zhou, Ka-Man Yip, Song-Lin Li, Zhong-Zhen Zhao, Jun Xu, Hu-Biao Chen
Bai-Hu-Tang (BHT), a classic traditional Chinese medicine (TCM) formula used for clearing heat and promoting body fluid, consists of four traditional Chinese medicines, i.e., Gypsum Fibrosum (Shigao), Anemarrhenae Rhizoma (Zhimu), Glycyrrhizae Radix et Rhizoma Praeparata cum Melle (Zhigancao), and nonglutinous rice (Jingmi). The chemical composition of BHT still remains largely elusive thus far. To qualitatively and quantitatively characterize secondary metabolites and carbohydrates in BHT, here a combination of analytical approaches using ultraperformance liquid chromatography coupled with quadrupole time-of-flight mass spectrometry and ultraperformance liquid chromatography coupled with photodiode array detector was developed and validated...
October 2017: Journal of Food and Drug Analysis
https://www.readbyqxmd.com/read/28987371/morphological-and-chemical-analyses-of-eriocauli-flos-sold-in-taiwan-markets
#7
I-Jung Lee, Cheng-Pei Chung, Shu-Jen Chang, Yun-Lian Lin
Eriocauli Flos (Gujingcao; EF), the dried capitulum with the peduncle of Eriocaulon buergerianum Koern. (Eriocaulaceae), is a Chinese herbal medicine for treating eye diseases and inflammation. However, several species of the Eriocaulon genus are used as substitutes in different areas. To examine the species of EF used in Taiwan and to establish the quality control platform, morphological and chemical analyses have been performed. Ten major compounds, including apigenin (7) and its 7-O-β-D-glucopyranoside (1) and 7-O-(6-O-E-coumaroyl)-β-D-glucopyranoside (6), hispidulin (8) and its 7-O-β-D-glucopyranoside (2) and 7-O-(6-O-E-coumaroyl)-β-D-glucopyranoside (5), jaceosidin (9) and its 7-O-β-D-glucopyranoside (3), and toralactone (10) and its 9-O-β-D-glucopyranosyl(1→6)-β-D-glucopyranoside (4), were isolated and identified from commercially available EF...
October 2017: Journal of Food and Drug Analysis
https://www.readbyqxmd.com/read/28987370/red-algae-gelidium-amansii-hot-water-extract-ameliorates-lipid-metabolism-in-hamsters-fed-a-high-fat-diet
#8
Tsung-Han Yang, Hsien-Tsung Yao, Meng-Tsan Chiang
The purpose of this study was to investigate the effects of Gelidium amansii (GA) hot-water extracts (GHE) on lipid metabolism in hamsters. Six-week-old male Syrian hamsters were used as the experimental animals. Hamsters were divided into four groups: (1) control diet group (CON); (2) high-fat diet group (HF); (3) HF with GHE diet group (HF + GHE); (4) HF with probucol diet group (HF + PO). All groups were fed the experimental diets and drinking water ad libitum for 6 weeks. The results showed that GHE significantly decreased body weight, liver weight, and adipose tissue (perirenal and paraepididymal) weight...
October 2017: Journal of Food and Drug Analysis
https://www.readbyqxmd.com/read/28987369/the-regulatory-effects-of-fish-oil-and-chitosan-on-hepatic-lipogenic-signals-in-high-fat-diet-induced-obese-rats
#9
Chen-Yuan Chiu, Tien-Chia Chang, Shing-Hwa Liu, Meng-Tsan Chiang
The present study investigated the regulatory effects of fish oil and chitosan on the signals of hepatic lipid metabolism and the postulated mechanism in high-fat diet-induced obese rats. Diet supplementation of chitosan and fish oil efficiently suppressed the increased weights in body and livers of high-fat diet-fed rats. Supplementation of chitosan and fish oil significantly decreased the activities of hepatic lipid biosynthesis-related enzymes and efficiently regulated plasma lipoprotein homeostasis. Both chitosan and fish oil significantly ameliorated the alterations in the protein expressions of hepatic lipogenic transcription factors (LXRα and PPARα), and could also significantly regulate the downstream hepatic lipogenic genes (FAS, HMGCR, CYP7A1, FATP, FABP, AOX, and ABCA) expressions in high-fat diet-fed rats...
October 2017: Journal of Food and Drug Analysis
https://www.readbyqxmd.com/read/28987368/dunaliella-salina-alga-extract-inhibits-the-production-of-interleukin-6-nitric-oxide-and-reactive-oxygen-species-by-regulating-nuclear-factor-%C3%AE%C2%BAb-janus-kinase-signal-transducer-and-activator-of-transcription-in-virus-infected-raw264-7%C3%A2-cells
#10
Hui-Wen Lin, Cheng-Wei Liu, Deng-Jye Yang, Ching-Chung Chen, Shih-Yin Chen, Jung-Kai Tseng, Tien-Jye Chang, Yuan-Yen Chang
Recent investigations have demonstrated that carotenoid extract of Dunaliella salina alga (Alga) contains abundant β-carotene and has good anti-inflammatory activities. Murine macrophage (RAW264.7 cells) was used to establish as an in vitro model of pseudorabies virus-induced reactive oxygen species (ROS) response. In this study, antioxidant activities of Alga were measured based on 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging, trolox equivalent antioxidant capacity assays, reducing power, and virus-induced ROS formation in RAW264...
October 2017: Journal of Food and Drug Analysis
https://www.readbyqxmd.com/read/28987367/antihemolytic-and-antioxidant-properties-of-pearl-powder-against-2-2-azobis-2-amidinopropane-dihydrochloride-induced-hemolysis-and-oxidative-damage-to-erythrocyte-membrane-lipids-and-proteins
#11
Hsin-Ling Yang, Mallikarjuna Korivi, Ming-Kuem Lin, Hebron Chun-Wei Chang, Chi-Rei Wu, Meng-Shiou Lee, William Tzu-Liang Chen, You-Cheng Hseu
Pearl powder, a well-known traditional mineral medicine, is reported to be used for well-being and to treat several diseases from centuries in Taiwan and China. We investigated the in vitro antihemolytic and antioxidant properties of pearl powder that could protect erythrocytes against 2,2'-azobis(2-amidinopropane) dihydrochloride (AAPH)-induced oxidative damage to membrane proteins/lipids. Human erythrocytes were incubated with different concentrations of pearl powder (50-200 μg/mL) for 30 minutes and then exposed to AAPH for 2-6 hours...
October 2017: Journal of Food and Drug Analysis
https://www.readbyqxmd.com/read/28987366/the-impact-of-gallic-acid-on-the-methotrexate-induced-kidney-damage-in-rats
#12
Halil Asci, Ozlem Ozmen, Hamit Yasar Ellidag, Bunyamin Aydin, Ercan Bas, Necat Yilmaz
Prolonged use of an antineoplastic agent methotrexate (MTX), can cause numerous side effects such as nephrotoxicity. The aim of this study was to examine the effects of MTX on kidneys and demonstrate the protective effects of gallic acid (GA). Twenty-four, male, rats distributed into three groups. Each groups consisted eight rats and only saline was administered to the control group. The MTX group received a single dose (20 mg/kg) MTX intraperitoneally. The MTX + GA group received same dose MTX and 100 mg/kg GA orally during the 7 days...
October 2017: Journal of Food and Drug Analysis
https://www.readbyqxmd.com/read/28987365/anti-oxidant-activity-and-major-chemical-component-analyses-of-twenty-six-commercially-available-essential-oils
#13
Hsiao-Fen Wang, Kuang-Hway Yih, Chao-Hsun Yang, Keh-Feng Huang
This study analyzed 26 commercially available essential oils and their major chemical components to determine their antioxidant activity levels by measuring their total phenolic content (TPC), reducing power (RP), β-carotene bleaching (BCB) activity, trolox equivalent antioxidant capacity (TEAC), and 1,1-diphenyl-2-picrylhydrazyl free radical scavenging (DFRS) ability. The clove bud and thyme borneol essential oils had the highest RP, BCB activity levels, and TPC values among the 26 commercial essential oils...
October 2017: Journal of Food and Drug Analysis
https://www.readbyqxmd.com/read/28987364/taiwanese-and-japanese-yam-dioscorea-spp-extracts-attenuate-doxorubicin-induced-cardiotoxicity-in-mice
#14
Chih-Tai Chen, Zhi-Hong Wang, Cheng-Chin Hsu, Hui-Hsuan Lin, Jing-Hsien Chen
The present study was designed to explore whether yam could protect the heart from doxorubicin (DOX)-induced oxidative stress leading to cardiotoxicity in vivo. In this study, the protective effects of water and ethanol extracts of three varieties of yam, including water extracts of Dioscorea japonica Thunb., ethanol extracts of D. japonica Thunb., water extracts of Dioscorea alata, ethanol extracts of D. alata, water extracts of Dioscorea purpurea, and ethanol extracts of D. purpurea, against DOX-induced cardiotoxicity in experimental mice were evaluated...
October 2017: Journal of Food and Drug Analysis
https://www.readbyqxmd.com/read/28987363/extract-from-mulberry-morus-australis-leaf-decelerate-acetaminophen-induced-hepatic-inflammation-involving-downregulation-of-myeloid-differentiation-factor-88-myd88-signals
#15
Chi-Ting Horng, Zhi-Hong Liu, Yu-Ting Huang, Huei-Jane Lee, Chau-Jong Wang
Acetaminophen (APAP) induced inflammation and oxidative stress can cause cell death to induce liver damage. The antioxidative and anti-inflammatory effect of Mulberry (Morus australis) leaf extract (MLE) was shown in previous studies. In this study, we investigated the modulation of MLE on APAP induced inflammation and oxidative stress in rat liver injury or liver cancer cell (HepG2). Wistar rat was fed orally with MLE (0.5% or 1.0 %) for 1 week, and then, 900 mg/kg of APAP was injected intraperitoneally (i...
October 2017: Journal of Food and Drug Analysis
https://www.readbyqxmd.com/read/28987362/the-stimulating-effects-of-polyphenol-and-protein-fractions-from-jelly-fig-ficus-awkeotsang-makino-achenes-against-proliferation-of-leukemia-cells
#16
Yi-Zhen Shih, Ai-Jun Huang, Chih-Yao Hou, Chii-Ming Jiang, Ming-Chang Wu
This study aimed to investigate the direct and immune-stimulated antiproliferative activities of jelly fig achenes fractions including pectinesterase inhibitors, crude polyphenols extract, and purified polyphenols extract (PP). Beside the measurement of cell viability of U937, the quantity of cytokines in conditioned medium and morphologic changes in leukemia were observed. After surveying all fractions in jelly fig, the obtained fractions of polyphenol exhibited the highest stimulating effects and directly cytotoxic effects against leukemia with the lowest effect found in protein fractions...
October 2017: Journal of Food and Drug Analysis
https://www.readbyqxmd.com/read/28987361/comparative-effect-of-horse-gram-and-black-gram-on-inflammatory-mediators-and-antioxidant-status
#17
Vrinda Rajagopal, Chithra K Pushpan, Helen Antony
A balanced diet is important for the overall wellbeing of an individual. Pulses are an important part of a nutritive diet. Pulses have been consumed for at least 10,000 years and are among the most extensively used foods in the world. They are a rich source of protein and fiber, as well as a significant source of vitamins and minerals, such as iron, zinc, and magnesium. The purpose of this study was to compare the effect of two pulses, horse gram and black gram, on inflammatory mediators and the antioxidant enzymes...
October 2017: Journal of Food and Drug Analysis
https://www.readbyqxmd.com/read/28987360/physicochemical-properties-and-anticoagulant-activity-of-polyphenols-derived-from-lachnum-singerianum
#18
Shuai Zong, Jing Ji, Jinglei Li, Qing-Hua Yang, Ming Ye
In this study, polyphenols (LSP) were obtained from the fermentation broth of Lachnum singerianum. Two fractions were isolated by Sephadex LH-20 chromatographic column, and the primary fraction (LSP-1) was collected. The comprehensive physicochemical properties of phenolic acids and polyhydroxy phenolic compounds of LSP-1 were determined by UV-visible spectroscopy, Fourier transform infrared spectroscopy, and gas chromatography-mass spectrometry. Results of anticoagulant activity assay in vitro showed that LSP-1 could lengthen prothrombin time, activated partial thromboplastin time, and thrombin time of mouse plasma...
October 2017: Journal of Food and Drug Analysis
https://www.readbyqxmd.com/read/28987359/in%C3%A2-vitro-assay-to-estimate-tea-astringency-via-observing-flotation-of-artificial-oil-bodies-sheltered-by-caleosin-fused-with-histatin-3
#19
Yu-En Shih, Yu-Chih Lin, Tse-Yu Chung, Mei-Chun Liu, Guan-Heng Chen, Chia-Chang Wu, Jason T C Tzen
Astringency, a sensory characteristic of food and beverages rich in polyphenols, mainly results from the formation of complexes between polyphenols and salivary proteins, causing a reduction of the lubricating properties of saliva. To develop an in vitro assay to estimate the astringency of oolong tea infusion, artificial oil bodies were constituted with sesame oil sheltered by a modified caleosin fused with histatin 3, one of the human salivary small peptides. Aggregation of artificial oil bodies was induced when they were mixed with oolong tea infusion or its major polyphenolic compound, (-)-epigallocatechin gallate (EGCG) of 100μM as observed in light microscopy...
October 2017: Journal of Food and Drug Analysis
https://www.readbyqxmd.com/read/28987358/regulatory-efficacy-of-fermented-plant-extract-on-the-intestinal-microflora-and-lipid-profile-in-mildly-hypercholesterolemic-individuals
#20
Hui-Fang Chiu, Yen-Jung Chen, Yan-Ying Lu, Yi-Chun Han, You-Cheng Shen, Kamesh Venkatakrishnan, Chin-Kun Wang
In recent years, the use of fermented plant products to protect against various metabolic syndromes has been increasing enormously. The objective of this study was to check the regulatory efficacy of fermented plant extract (FPE) on intestinal microflora, lipid profile, and antioxidant status in mildly hypercholesterolemic volunteers. Forty-four mildly hypercholesterolemic individuals (cholesterol 180-220 mg/dL) were recruited and assigned to two groups: experimental or placebo. Volunteers were requested to drink either 60 mL of FPE or placebo for 8 weeks...
October 2017: Journal of Food and Drug Analysis
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