A5036858420- Bee Products Chemical Analysis
- Insect and Pesticide Research
- Phytochemicals and Antioxidant Activities
- Essential Oils and Antimicrobial Activity
- Biofuel production and bioconversion
- Pesticide Exposure and Toxicity
- Pesticide Residue Analysis and Safety
- Microbial Metabolic Engineering and Bioproduction
- Pesticide and Herbicide Environmental Studies
- Food composition and properties
- Food Quality and Safety Studies
- Environmental Toxicology and Ecotoxicology
- Heavy Metals in Plants
- Sphingolipid Metabolism and Signaling
- Enzyme Catalysis and Immobilization
- Medicinal Plants and Neuroprotection
- Phytochemicals and Medicinal Plants
- Neuroinflammation and Neurodegeneration Mechanisms
- Seed and Plant Biochemistry
- Cancer, Lipids, and Metabolism
- Geochemistry and Geologic Mapping
- Meat and Animal Product Quality
- Tea Polyphenols and Effects
- Genetics and Plant Breeding
- Advanced Cellulose Research Studies
Johns Hopkins University
2019-2024
Johns Hopkins Medicine
2020-2024
Universiti Sains Malaysia
2011-2016
Hospital Universiti Sains Malaysia
2011-2016
Universidade de Santiago de Compostela
2014-2015
Bangladesh Atomic Energy Commission
2012-2014
Jahangirnagar University
2012
Bangladesh Institute of Research and Rehabilitation for Diabetes Endocrine and Metabolic Disorders
2012
University of Florida
1997-1998
Texas A&M University
1996-1997
The phenolic acid and flavonoid contents of Malaysian Tualang, Gelam, Borneo tropical honeys were compared to those Manuka honey. Ferric reducing/antioxidant power assay (FRAP) the 1,1-diphenyl-2-picryl-hydrazyl (DPPH) radical-scavenging activities also quantified. All honey extracts exhibited high (15.21 ± 0.51- 42.23 0.64 mg/kg), (11.52 0.27- 25.31 0.37 FRAP values (892.15 4.97- 363.38 10.57 μM Fe[II]/kg), IC₅₀ DPPH (5.24 0.40- 17.51 0.51 mg/mL). Total 6 acids (gallic, syringic, benzoic,...
The aim of the present study was to characterize physical, biochemical and antioxidant properties Algerian honey samples (n = 4). Physical parameters, such as pH, moisture content, electrical conductivity (EC), total dissolved solids (TDS), color intensity, sugar sucrose content were measured. Several tests performed determine samples. mean pH 3.84 ± 0.01, 13.21 0.16%. EC 0.636 0.001, TDS 316.92 0.92. 120.58 0.64 mm Pfund, 5-hydroxymethylfurfural (HMF) 21.49 mg/kg. reducing contents 67.03...
The aim of the present study was to evaluate physicochemical and antioxidant properties Malaysian monofloral honey samples-acacia, pineapple borneo honey-and compare them with tualang honey. Acacia are produced by Apis mellifera bees while cerana dorsata bees, respectively.The physical parameters honey, such as pH, moisture content, electrical conductivity (EC), total dissolved solids (TDS), color intensity, sugar apparent sucrose were measured. Hydroxymethylfurfural (HMF) measured using...
The aim of the present study was to evaluate physical, biochemical and antioxidant properties four Malaysian monofloral types honey (gelam, longan, rubber tree sourwood honeys) compared manuka honey. Several physical parameters honey, such as pH, moisture content, electrical conductivity (EC), total dissolved solids (TDS), color intensity, sugar sucrose were measured. A number tests performed determine samples. Hydroxymethylfurfural (HMF) levels determined using high performance liquid...
The aim of the present study was to characterize phenolic acids, flavonoids, and antioxidant properties monofloral honey collected from five different districts in Bangladesh. A new high performance liquid chromatography (HPLC) equipped with a UV detector method developed for identification acids flavonoids. total were identified, most abundant being caffeic acid, benzoic gallic followed by chlorogenic acid trans-cinnamic acid. kaempferol, catechin abundant, myricetin naringenin. mean...
Abstract Background There is no available information on physicochemical and antioxidant properties Bangladeshi honey. We investigated five different monofloral three multifloral honey samples collected from parts of Bangladesh. Methods The levels phenolics, flavonoids, ascorbic acid, acid equivalent content (AEAC), proline, protein antioxidants were determined in the using ferric reducing power (FRAP) 1,1-diphenyl-2-picrylhydrazyl (DPPH) assays. Results highest level phenolic was 688.5 ±...
Glioblastoma multiforme (GBM) is the most common and lethal primary malignant brain tumor in adults. Despite multimodal standard treatments for GBM, median survival still about one year. Analysis of tissues from GBM patients shows that lipid droplets are highly enriched while undetectable normal tissues, yet identity functions species not well understood. The aims present work to determine how utilizes fatty acids, assess their roles proliferation. Treatment U138 cells with a monounsaturated...
Several types of organophosphorous and carbamate pesticides have been used extensively by the farmers in Bangladesh during last few decades. Twenty seven water samples collected from both paddy vegetable fields Savar Dhamrai Upazilas were analyzed to determine occurrence distribution organo-phosphorus (chlorpyrifos, malathion diazinon) (carbaryl carbofuran) pesticide residues. A high performance liquid chromatograph instrument equipped with a photodiode array detector was concentrations...
Abstract Background Withania somnifera is an important medicinal plant traditionally used in the treatment of many diseases. The present study was carried out to characterize phenolic acids, flavonoids and 1,1-diphenyl-2-picrylhydrazyl radical (DPPH) scavenging activities methanolic extracts W. fruits, roots leaves (WSFEt, WSREt WSLEt). Methods WSFEt, WSLEt prepared by using 80% aqueous methanol total polyphenols, as well DPPH were determined spectrophotometric methods acid profiles HPLC...
The aim of this study was to determine the levels cadmium (Cd), chromium (Cr), lead (Pb), arsenic (As) and selenium (Se) in (1) fresh tea leaves, (2) processed (black) leaves (3) soils from plantations originating Bangladesh.Graphite furnace atomic absorption spectrometry (GF-AAS) used evaluate six digestion methods, nitric acid, acid overnight, acid-hydrogen peroxide, (4) nitric-perchloric (5) sulfuric (6) dry ashing, most suitable method for determination heavy metals samples.The...
The present study was undertaken to determine the content of six minerals, five trace elements, and ten pesticide residues in honeys originating from different regions Malaysia. Calcium (Ca), magnesium (Mg), iron (Fe), zinc (Zn) were analyzed by flame atomic absorption spectrometry (FAAS), while sodium (Na) potassium (K) emission (FAES). Trace elements such as arsenic (As), lead (Pb), cadmium (Cd), copper (Cu), cobalt (Co) graphite furnace (GFAAS) following microwave digestion honey. High...
Stroke is the third leading cause of death in Bangladesh. The World Health Organization ranks Bangladesh's mortality rate due to stroke as number 84 world. reported prevalence Bangladesh 0·3%, although no data on incidence have been recorded. Hospital-based studies conducted past decades indicated that hypertension main ischaemic and haemorrhagic high disability-adjusted life-years lost (485 per 10 000 people) show severely impacts economy. Although two non-governmental organizations, BRAC...
In this study, the total phenolic and flavonoid contents, 2,2-diphenyl-1-picryl hydrazyl (DPPH) radical scavenging ability ferric reducing power (FRAP) of Aloe vera were measured to determine antioxidant activity species. The in vivo antidiabetic effects plant also investigated using streptozotocin-induced type 2 diabetic model rats that divided into five groups based on treatment received: (1) water (WC); (2) glibenclamide; (3) concentrated gel extract (Gel-C); (4) ethanol (80%) (Gel-Et);...
In the present study, residual pesticide levels were determined in eggplants (Solanum melongena) (n = 16), purchased from four different markets Dhaka, Bangladesh. The carbamate and organophosphorus by high performance liquid chromatography (HPLC), efficiency of gamma radiation on removal three types vegetables was also studied. Many (50%) samples contained pesticides, had above maximum residue World Health Organisation. Three carbamates (carbaryl, carbofuran, pirimicarb) six...
Honey is a good source of several important chemical compounds and antioxidants harvested throughout the year. However, no study has determined how their contents change over years. The aim present research was to investigate changes in phenolics, flavonoids antioxidant properties, as well other physicochemical Malaysian acacia honey collected during different months two year period. DPPH (1,1-diphenyl-2-picrylhydrazyl) FRAP (ferric reducing power) methods were used determine total activity...
Targeting a sphingomyelin hydrolase improves the structure of remyelinated fibers in mouse model multiple sclerosis.