Md Ramim Tanver Rahman

Laval University | ULAVAL

Bacteria use quorum sensing (QS) systems to communicate with each other and regulate microbial group behavior, such as the secretion of virulence factors, including biofilm formation. In order to explore safe, edible agents, the potential of star anise (SA) as an anti-QS and antibiofilm agent and its possible application in milk safety were investi...

Cell-to-cell communication or quorum sensing (QS) leads to biofilm formation and causing other virulence factors which are extreme problems for food safety, biofilm related infectious diseases etc. This study evaluated the anti-QS activity of the Amomum tsaoko extract (0.5–4mg/ml) by using Chromobacterium violaceum a biosensor strain and biofilm fo...

Duck neck meat products are traditional, popular snack items in China for its attractive spicy taste, flavor and texture. These products are perishable and different types of chemical preservatives are used extensively. This study determined the levels of preservatives and microbial load in Chinese duck neck meat product by gas chromatography and a...

An aptamer-based magnetoelastic sensor for the determination of Staphylococcus aureus is reported. Aptamers specific to S. aureus were used to ensure specific and selective binding of bacteria on the sensor surface. The sensors were exposed to S. aureus concentrations of 1*101–1*011 forming units per milliliter, and the changes in resonance frequen...

Bacteria in the natural environment form complexes which are closely associated with abiotic and biotic surfaces of solids and liquids. These bacterial communities are adherent to a surface, an interface or to each other and are known as biofilms. Biofilm formation has serious implications in industrial, environmental, public health and medical sit...

The overuse and misuse of antibiotics has contributed to the rise and spread of multidrug-resistant bacteria. To address this global public health threat, many countries have restricted the use of antibiotics as growth promoters and promoted the development of alternatives to antibiotics in human and veterinary medicine and animal farming. In food-...

Phenolic acids, a plant phenolics member, are now under scientist's intense focus for the last two decades worldwide. Humans started utilizing the properties of phenolic acids long before their invention. The advancement of science and technology opens new horizons for applying these plant derivatives as food and nutraceuticals. Having a carboxylic...

Supercritical fluid extraction (SFE) is a sample preparation procedure according to the physicochemical characteristics of the analytes in a solid/liquid mixture. SFE technique is performed using different supercritical fluids (SFs) for the liquid/solid matrix to extract samples based on their interactions, including adsorption, hydrogen bonding, p...

Poly lactic acid (PLA) is a compostable, as well as recyclable, sustainable, versatile and environmentally friendly alternative, because the monomer of PLA-lactide (LA) is extracted from natural sources. PLA’s techno-functional properties are fairly similar to fossil-based polymers; however, in pristine state, its brittleness and delicacy during pr...

Extracted lycopene oil of tomato peels waste using green-extraction technique may be used as a convenient alternative to butter in processed cheese manufacturing. The effects of partial substitution of butter by lycopene oil at ratio of 25%, 50%, and 75% were evaluated, in comparison with cheeses produced only with butter. The substitution of butte...

The importance of pH on food stability and food preservation is well documented as well accepted by the scientific community. The term pH is the symbol for hydrogen ion [H+] concentration. The hydrogen ion concentration of a food is a controlling factor in regulating many chemical, biochemical, and microbiological reactions. Hydrogen ion concentrat...

China's culture is thousands of years old. On the other hand, China's geographical size and population are huge. Traditional food habits of the people of this country from geographically large areas are also different. Over time, these traditional foods are available in a new way with the improvement of food processing technology, or it is similar...

The binding capacity of Pb on modified rice bran-insoluble fibers RBIF-0.2, RBIF-1.25, and RBIF-2.0 (0.2%, 1.25%, and 2.0% H2SO4 with 1.25% KOH) having the variable specific surface area and cation-exchange capacity was evaluated. The Pb binding in terms of maximum binding capacity (BCmax) with RBIF increased with pH (2–7). However, the presence of...

Antioxidants are bioactive compounds in foods that help to neutralize free radicals, which attack fats, protein and DNA in the cells, causing various types of diseases and accelerating the aging process. In addition, autoxidation causes rancidity of fats and oils leading to deterioration of fatty foods. The best natural antioxidant sources are plan...

Ginger is a commonly used spice around the world. Its bioactive compounds contain hydrophobic gingerols and hydrophilic polysaccharides. Huge physiochemical differences between these compounds and the thermal instability of gingerols impede fast and effective extraction of them using conventional methods. In this research, ionic liquid-based ultras...

Polyethylene glycol (PEG) as a green solvent was employed to extract polysaccharide. The optimal conditions for PEG-based ultrasonic extraction of Dendrobium nobile Lindl. polysaccharide (JCP) were determined by response surface methodology. Under the optimal conditions: extraction temperature of 58.5°C; ultrasound power of 193W, and the concentrat...

6-Gingerol and 6-shogaol are the main bioactive compounds in ginger. Although 6-shogaol has more and better bioactivities than its precursor 6-gingerol, the low content of 6-shogaol in ginger restricts its bioactive effects in functional foods. The traditional preparation methods of 6-shogaol are defective because of the environmental hazards and l...

The objective of this study was to evaluate the effects of dietary addition of fermentation metabolites by Sterilized fermented feed(SFF) as a replacement for fermented feed(FF) and antibiotics on expression of genes related intestinal barrier function and immune parameters in chicken. Three hundred and ninety‐six 1‐d‐old broilers with body weight...

Many substances including fermented feed (FF) is being evaluated as alternative to antibiotics. The aimed of this study was to investigate the effect of dietaries containing different levels of fermented feed (FF) and antibiotics on growth performance, intestinal morphology, immune status, carcass performance on slow‐growing chicken named chicken E...

Quorum sensing (QS) regulated bacterial biofilm formation can cause serious problems in clinical, industrial, food settings, which drives the development or screening of biofilm inhibitors. Some biofilm inhibitors have been screened from natural products or modified from natural compounds. We evaluated the potentiality of a green product, a popular...

This study investigated the hypocholesterolaemic effects of bitter melon aqueous extracts (BMAE) in vitro, the inhibitory effects of BMAE on pancreatic cholesterol esterase (CEase) and incorporation of cholesterol into micelles were investigated. BMAE decreased the in vitro micellar solubility of cholesterol in a dose-dependent manner. The conforma...

Abstract The form of programmed cell death known as Apoptosis has become an intense focus of investigation in various fields including carcinogenesis and cancer therapy. It is a sequentially regulated suicidal programme where cells regulate certain enzymes including caspase 9 activation and cytochrome C release with apoptosis inducing factor (AIF...

The form of programmed cell death known as Apoptosis has become an intense focus of investigation in various fields including carcinogenesis and cancer therapy. It is a sequentially regulated suicidal programme where cells regulate certain enzymes including caspase 9 activation and cytochrome C release with apoptosis inducing factor (AIF). The Bcl-...

Quercetin (3,3’,4’,5-7- pentahydroxy flavone) is a flavonoid is prevalent in wide variety of dietary plants ,including red onions, tomatoes, lettuce and celery, fruits such as apples and berries, tea, fruits and vegetable juices, and many herbal plants including Persicaria chinensis L. , and Phyllanthus acidus . Epidemiological data suggest that qu...

Lateral flow tests, also known as immune chromatographic strip (ICS) tests, are point of care tests that have reduced the time spent waiting for test results from hours to minutes utilizing immunochromatographic assy. It requires no specialized equipment, less technical training for operators and has reduced the cost of device development as well a...

Bioactive compounds are sourced from plant and animal secondary metabolites. They are linked to the reduction of the development and progression of life style diseases. Now-a-days most of the plant foods are processed. Recent studies have shown, the processing technology and storage can alter the functional properties. So it is important to know th...

Effect of gypenosides on porcine pancreatic lipase (PL) activity was determined in vitro. Gypenosides inhibited the PL activity in a dose-dependent manner at the concentrations of 0–1.0 mg/ml. The Lineweaver–Burk plots for gypenosides indicated that the inhibition on PL by gypenosides was noncompetitive. The conformation of PL was investigated by m...

This study was made to investigate the components of a new resource food in China, peony seed oil (PSO) by GC-MS (Gas chromatography–mass spectrometry), the inhibitory effects of peony seed oil on carbohydrate hydrolyzing enzymes in vitro and the anti-diabetic effects of peony seed oil on mice induced by streptozotocin(STZ). Results showed that peo...

The content of zinzerone, 6-gingerol, 8-gingerol, 6-shogaol, 10-gingerol in fresh and dried by different drying method were compared by HPLC.

Research on and the application of bio-active compounds, have recently attracted great interest in the functional foods, nutraceutical and pharmaceutical industries, due to their potential health benefits, to immobilize cells or enzymes in food processing applications, such as fermentation process and metabolite, to provide improved stability in fi...

Circadian rhythmic disorders induced by high-fat diet are associated with metabolic diseases. Resveratrol could improve metabolic disorde, but few reports focused on its effects on circadian rhythm disorders in a variety of studies. The aim of the present study was to analyze the potential effects of resveratrol on high-fat diet-induced disorders a...

To manufacture fresh ginger beverage and ginger powder beverage respectively with fresh ginger and ginger powder made of fresh ginger. The volatile compounds of fresh ginger, ginger powder, fresh ginger beverage and ginger powder beverage were analyzed by headspace-solid phase micro-extraction combined with GC-MS (HS-SPME-GC-MS) and to confirm rete...

Immunosensors are affinity ligand-based biosensor solid-state devices in which the immunochemical reaction is coupled to a transducer. The fundamental basis of all immunosensors is the specificity of the molecular recognition of antigens by antibodies to form a stable complex. This is similar to the immunoassay methodology.Immunosensors can be cate...

Purpose: To determine the chemical composition and anti-biofilm activity of burdock leaf fractions against Staphylococcus aureus Methods: The anti-biofilm activity of burdock leaf fractions obtained by column chromatography against S. aureus was determined by minimum inhibitory concentration (MIC). Scanning electron microscopy was employed to fu...

Immunosensors are affinity ligand-based biosensor solid-state devices in which the immunochemical reaction is coupled to a transducer. The fundamental basis of all immunosensors is the specificity of the molecular recognition of antigens by antibodies to form a stable complex. This is similar to the immunoassay methodology. Immunosensors can be cat...

In the past decade, there has been an explosion of high-content and high-throughput data associated with a large number of disease states, chemical exposures, biological species, food and nutritional researches.To fully interpret this information, it has become necessary to develop a range of software tools that will identify the potentially biolog...

The present study was conducted to develop and investigate pineapple (Ananas comosus) preserve and candy to assess its prospect in marketability and study their storage life. Pineapple slices were treated with 2% solution of common salt to prevent browning, then cut into cube shape and treated with 1% calcium chloride and 0.25% potassium metabisulp...

The study was concerned with drying of cabbage (Brassica oleracea or variants) by using solar drying and sun drying method. Fresh cabbage slices thickness of single layer, were placed in trays and drying commenced in the solar dryer and Sun dryer. The chemical composition of fresh and dehydrated cabbage leaf were determined. The results showed that...

In the last few years, plant products and their modified derivatives have been rich sources for clinically useful drugs. According to the World Health Organization (WHO, 2008), more than 80% of the world's population relies on traditional medicine for their primary healthcare needs. Medicinal plants contain high levels of antioxidants that can dela...

Chen W, Li X, Rahman MRT, Al-Hajj NQM, Dey KC, Raqib SM. 2014. Emulsification properties of soy bean protein. Nusantara Bioscience 6: 196-202. Emulsion stability and emulsifying ability are two important factors in food industry. Soy protein has the great of interest because of its amphilic structure. β-Conglycinnin and glycinin are main components...

Coeliac disease is an antibody-mediated enteropathy that presents permanent intolerance to ingested gluten, for which only treatment is lifelong devotion to a gluten-free diet. The aim of this study was to produce and investigate cracker biscuits prepared from gluten-free composite flour. Gluten was separated from wheat flour to make gluten-free...

In food science research, the recording and analyzing the date from food science experiments is complex. Statistical methods are applied to study food processing, sensory quality, quality control etc.in the industry. There exists misunderstanding that statistics is viewed as a difficult subject. In this review article, the applications of statistic...

In order to evaluate the potential of medicinal effects of the popular edible Pulicaria inuloides Yemen, the methanol, ethanol and diethyl ether extracts from leaves of Pulicaria inuloides were analyzed for their antioxidant properties. The major components of the oil of P. inuloides were 2-Cyclohexen-1-one, 2-methyl-5-(1- methyl (56.8%), Benzene...

The study was designed to produce fruit juice yogurt by the addition of jackfruit juice which is nutritious as well as the delicious food. It also provides some nutrients which are beneficial for our health. An investigation was carried out to develop the acceptable prepared yogurt using different level (5%, 10% and 15%) of jackfruit juice. The dif...

Jackfruit seeds and bengal gram are rich of nutrients as protein, crude fibre, minerals etc. To improve the quality of chapati, jackfruit seed flour and bengal gram flour were used along with wholemeal wheat flour (atta). The aims of this study were to enrich the quality of chapaties and to check the shelf life of chapaties in ambient and refrigera...