Sha Md. Shahan Shahriar

University of Rajshahi | RU · Department of Applied Chemistry and Chemical Engineering

Since the dawn of time, plant-based foodstuffs have been an indispensable component of human nutrition. This hasn't evolved, but the heavy metal contamination of soil and edible vegetable portions is currently a global grave threat to the environment. One of the predominant components contributing to agricultural contamination includes heavy metals...

All age groups are fond of bakery items, although middle-class and lower-class people in Bangladesh are especially prominent. However, this food product's ingredients, manufacturing process, and packaging all have the potential for heavy metal contamination. As a result, the mean concentrations of Cr, Mn, Cu, Ni, Cd and Pb in 18 different brands of...

Heavy metal in irrigation water can be absorbed by crops, resulting in their accumulation in edible plant portions. These metals can be ingested through foods produced with contaminated water, which can result in organ damage, concerns with child development, neurological illnesses, and even cancer. This study, therefore, focuses on the estimation...

The concentrations of four heavy metals in rice grains and the health risk assessments of the metals were studied. Sixteen rice samples were gathered from Rajshahi, Bangladesh. Average lead, chromium, manganese, and cadmium concentrations measured in rice samples were 6.87, 0.43, 44.58, and 1.13 mg/kg, respectively. The concentration level found in...

The most often used predominant plastic made from petroleum-based material is polyethylene. It is a non-degradable plastic waste, which results in enormous accumulation in our environment. Plastics have been used inexplicably during the past few decades, including packaging, automotive, industrial, and agriculture in both rural and urban regions, b...

A group of cells exhibit uncontrolled proliferation, invasion, and occasionally metastasis in cancer, a category of disorders. According to statistics, cancer is the second largest cause of mortality in the world. As a result, current cancer research places a strong priority on the discovery and development of novel, effective, and selective antica...

Six types of spices samples (viz. Capsicum annuum, Allium cepa, Curcuma longa, Zingiber officinale, Allium sativum and Coriandrum sativum) were collected from Mohanpur Upazila of Rajshahi district. For the determination of heavy metals (Pb Cd, Cr and As) concentrations and human health risks, the spice samples were digested in a mixture of HNO 3 an...

The skyrocketing demand and progressive technology have increased our dependency on electrical and electronic devices. However, the life span of these devices has been shortened because of rapid scientific expansions. Hence, massive volumes of electronic waste (e-waste) is generating day by day. Nevertheless, the ongoing management of e-waste has e...

Chromium and zinc are essential minerals that the body needs in trace amounts. However, the high concentration of these metals are potential health risk to human health. The concentration of chromium and zinc were determined in groundwater and cows' raw milk in Rajshahi district of Bangladesh. Total 30 groundwater samples and 30 milk samples were c...

Heavy metals determination in cereals and vegetables is one of the vital interests, because of their essential or toxic nature. In order to assess the levels and the impact of different toxic metals on human health, a study was carried out to determine the concentration of different toxic metals present in ground water and edible cereals (rice, whe...

Michelia champaca (MC), family Magnoliaceae, is a medicinally important plant. Different parts of this plant are used in various ailments in folk medicine. The present study was conducted to demonstrate antioxidant potentiality of Michelia champaca bark in two different solvents and evaluate their in vitro antidiabetic activity along with screening...

Anticancer drug development is now an emerging field of research all over the world. In this study we attempt to synthesize a novel, simple, inexpensive and safe chemical agents Benzoin thiosemicarbazone (BTSC) and studied against Ehrlich Ascites Carcinoma (EAC) cells bearing Swiss Albino mice by monitoring in vivo tumor cell growth inhibition, sur...

p>Cancer is a class of diseases in which a group of cells display uncontrolled growth, invasion and sometimes metastasis. In order to find out a new anticancer drug, Ni(II) complex with benzoin thiosemicarbazon was synthesized and characterized. Anticancer activities of Ni(BTSC)2 2 2 has been studied against Ehrlich Ascites Carcinoma (EAC) cells in...

As a part of our present investigation to find out the effective strategy for enhancing the shelf life of mango fruits, we observed the changes in biochemical parameters of a local mango variety namely Khirshapat at the concentration of 1 & 2ppm of 1-MCP during storage at 12-13 °C and 30-32 °C. Green mature mangoes were directly collected from mang...

Since the prehistoric times fungal infections are one of the most common diseases known to humanity and mortality due to these infections even with antifungal therapy is still unacceptably high. Therefore, the development of new antifungal agents targeting specific fungal structures or functions is being actively pursued. The antifungal activity of...

A total of 18 non-canned soft drinks and 12 canned soft drinks of different brands were collected from markets in Chittagong City of Bangladesh. It was found that, lead concentrations were significantly low in non-canned soft drinks. The highest level of lead content was obtained 0.016 mgL-l. The content of lead in non-canned soft drinks was found...

The concentration of selected heavy metals (chromium and zinc) was detected and estimated in water and raw milk collected from Chittagong City of Bangladesh. A total of 25 water samples and 20 raw milk samples were collected from different farms situated in 10 locations of Chittagong, Bangladesh. Chromium content in water was obtained in the range...

Cellulosic ethanol is a biofuel, produced from different kinds of raw materials such as simple sugars, starch and lignocellulose because of their low cost and huge availability. In the present study lignocellulosic substances such as suger cane bagasse and corn stover are used as feedstocks for bioethanol production by using cellulolysis process. T...

Objective: To study the anticancer activities of three schiff bases viz. vanillin thiosemicarbazone, benzophenone thiosemicarbazone and acetophenone thiosemicarbazone against Ehrlich ascites carcinoma (EAC) cells in Swiss albino mice. Methods: Synthesized compounds have administrated into the intraperitoneal cavity of the EAC inoculated mice at two...

An experiment was conducted to evaluate the effect of various levels of nitrogen and phosphorus fertilizer with sheep and goat manure on botanical parameters, yield and chemical composition of Jumbo fodder. The experiment was conducted by using 10 ton/hector sheep and goat manure as basal dose for all treatments. Treatment T 1 was control without a...

Three Schiff bases derived from thiosemicarbazide and ketones (Vanillin, Benzophenone and Acetophenone) were used to study their antibacterial activities against some pathogenic bacteria by disc diffusion method. Of these, benzophenone thiosemicarbazone showed significant antibacterial activity as compared with that of Kanamycin . All these three c...

The aim of this work is to detect and estimate the level of selected heavy metals (copper and lead) in milk and milk products in Chittagong City Corporation Areas of Bangladesh. The most important milk and milk products that are likely to be an important contributor to heavy metal exposure was selected. Total 30 samples of milk and milk products we...

A new series of four transition metal complexes of a Schiff base derived from salicylaldehyde and glycine, viz. [N-salicylidene glycinato diaqua cobalt (II) dimer] (SGCo) 2 , [N-salicylideneglycinato-di-aqua-nickel(ll)dimer] (SGN) 2 , [N-salicylideneglycinato-aqua-copper(II)] (SGC) and [N-salicylidene glycinato diaqua zinc(II) dimer] (SGZ) 2 have b...

To evaluate the anticancer activity of vanillin semicarbazone (VSC) against Ehrlich ascites carcinoma (EAC) cells in Swiss albino mice. The compound VSC at three doses (5, 7.5 and 10 mg/kg i.p.) was administered into the intraperitoneal cavity of the EAC inoculated mice to observe its efficiency by studying the cell growth inhibition, reduction of...

The present study was undertaken to observe the chemical composition of different types of rice polish available in different areas of Chittagong, Bangladesh. Twenty different types of rice polishes were collected from study areas. Chemical analyses of the samples were carried out in triplicate for moisture, dry matter (DM), crude protein (CP), cru...

This study was done to analyse the effect of chemical preservatives on watermelon juice. The samples were; pasteurized watermelon juice (T 1), pasteurized watermelon juice +20% sucrose (T 2), pasteurized watermelon juice +0.1% sodium benzoate (T 3), pasteurized watermelon juice +20% sucrose +0.1% sodium benzoate (T 4), pasteurized watermelon juice...

The paper deals with the investigation of the fatty oil of carom seed ( Trachyspermum ammi ) for its physicochemical characteristics and fatty acid composition. Oil from carom seed collected from local market was extracted with n-hexane in a glass Soxhlet apparatus. Extracted oil was dark green, burning taste, spicy in odour and soluble in n-hexane...

The study was concerned with the chemical composition of two varieties hog-plum Pulp collected from Mymensingh and Barishal and developed jelly and leather. Cabinet dryer, model OV-165 (Gallen Kamp Company) was used for dehydration of two types of hog-plum pulp and leather. The fresh and dried hog-plum and hog-plum products were analyzed for their...